random whitespace

Fix use_cassette when used as decorator does not return the wrapped function's return value

.gitignore

@@ -7,4 +7,5 @@ dist/
 *.egg-info/
 pytestdebug.log
 
-fixtures/
+fixtures/
+/docs/_build

.travis.yml

@@ -1,4 +1,5 @@
 language: python
+sudo: false
 before_install: openssl version
 env:
   global:
@@ -8,9 +9,16 @@ env:
     - WITH_LIB="requests2.2"
     - WITH_LIB="requests2.3"
     - WITH_LIB="requests2.4"
+    - WITH_LIB="requests2.5"
+    - WITH_LIB="requests2.6"
+    - WITH_LIB="requests2.7"
     - WITH_LIB="requests1.x"
     - WITH_LIB="httplib2"
     - WITH_LIB="boto"
+    - WITH_LIB="urllib31.7"
+    - WITH_LIB="urllib31.9"
+    - WITH_LIB="urllib31.10"
+    - WITH_LIB="tornado"
 matrix:
   allow_failures:
     - env: WITH_LIB="boto"
@@ -28,11 +36,19 @@ python:
 - 3.4
 - pypy
 install:
-- pip install PyYAML pytest pytest-localserver --use-mirrors
+- pip install .
 - if [ $WITH_LIB = "requests1.x" ] ; then pip install requests==1.2.3; fi
 - if [ $WITH_LIB = "requests2.2" ] ; then pip install requests==2.2.1; fi
 - if [ $WITH_LIB = "requests2.3" ] ; then pip install requests==2.3.0; fi
 - if [ $WITH_LIB = "requests2.4" ] ; then pip install requests==2.4.0; fi
+- if [ $WITH_LIB = "requests2.5" ] ; then pip install requests==2.5.0; fi
+- if [ $WITH_LIB = "requests2.6" ] ; then pip install requests==2.6.0; fi
+- if [ $WITH_LIB = "requests2.7" ] ; then pip install requests==2.7.0; fi
 - if [ $WITH_LIB = "httplib2" ] ; then pip install httplib2; fi
 - if [ $WITH_LIB = "boto" ] ; then pip install boto; fi
+- if [ $WITH_LIB = "urllib31.7" ] ; then pip install certifi urllib3==1.7.1; fi
+- if [ $WITH_LIB = "urllib31.9" ] ; then pip install certifi urllib3==1.9.1; fi
+- if [ $WITH_LIB = "urllib31.10" ] ; then pip install certifi urllib3==1.10.2; fi
+- if [ $WITH_LIB = "tornado" ] ; then pip install tornado==4.2 pytest-tornado; fi
+- if [ $WITH_LIB = "tornado" -a $TRAVIS_PYTHON_VERSION != "pypy" ] ; then pip install pycurl; fi
 script: python setup.py test

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2012-2014 Kevin McCarthy
+Copyright (c) 2012-2015 Kevin McCarthy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

MANIFEST.in

@@ -0,0 +1,4 @@
+include README.rst
+include LICENSE.txt
+include tox.ini
+recursive-include tests *

README.md

@@ -1,548 +0,0 @@
-# VCR.py
-
-![vcr.py](https://raw.github.com/kevin1024/vcrpy/master/vcr.png)
-
-This is a Python version of [Ruby's VCR library](https://github.com/vcr/vcr).
-
-[![Build Status](https://secure.travis-ci.org/kevin1024/vcrpy.png?branch=master)](http://travis-ci.org/kevin1024/vcrpy)
-[![Stories in Ready](https://badge.waffle.io/kevin1024/vcrpy.png?label=ready&title=Ready)](https://waffle.io/kevin1024/vcrpy)
-
-## What it does
-Simplify and speed up testing HTTP by recording all HTTP interactions and
-saving them to "cassette" files, which are yaml files containing the contents
-of your requests and responses.  Then when you run your tests again, they all
-just hit the text files instead of the internet.  This speeds up your tests and
-lets you work offline.
-
-If the server you are testing against ever changes its API, all you need to do
-is delete your existing cassette files, and run your tests again.  All of the
-mocked responses will be updated with the new API.
-
-## Compatibility Notes
-VCR.py supports Python 2.6 and 2.7, 3.3, 3.4, and [pypy](http://pypy.org).
-
-The following http libraries are supported:
-
-  * urllib2
-  * http.client (python3)
-  * requests (both 1.x and 2.x versions)
-  * httplib2
-  * boto
-
-## Usage
-```python
-import vcr
-import urllib2
-
-with vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml'):
-    response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()
-    assert 'Example domains' in response
-```
-
-Run this test once, and VCR.py will record the HTTP request to
-`fixtures/vcr_cassettes/synopsis.yml`. Run it again, and VCR.py will replay the
-response from iana.org when the http request is made. This test is now fast (no
-real HTTP requests are made anymore), deterministic (the test will continue to
-pass, even if you are offline, or iana.org goes down for maintenance) and
-accurate (the response will contain the same headers and body you get from a
-real request).
-
-You can also use VCR.py as a decorator.  The same request above would look like
-this:
-
-```python
-@vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml')
-def test_iana():
-    response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()
-    assert 'Example domains' in response
-```
-
-All of the parameters and configuration works the same for the decorator
-version.
-
-## Configuration
-
-If you don't like VCR's defaults, you can set options by instantiating a `VCR`
-class and setting the options on it.
-
-```python
-
-import vcr
-
-my_vcr = vcr.VCR(
-    serializer = 'json',
-    cassette_library_dir = 'fixtures/cassettes',
-    record_mode = 'once',
-    match_on = ['uri', 'method'],
-)
-
-with my_vcr.use_cassette('test.json'):
-    # your http code here
-```
-
-Otherwise, you can override options each time you use a cassette.  
-
-```python
-with vcr.use_cassette('test.yml', serializer='json', record_mode='once'):
-    # your http code here
-```
-
-Note: Per-cassette overrides take precedence over the global config.
-
-## Request matching
-
-Request matching is configurable and allows you to change which requests VCR
-considers identical.  The default behavior is 
-`['method', 'scheme', 'host', 'port', 'path', 'query']` which means that
-requests with both the same URL and method (ie POST or GET) are considered
-identical.
-
-This can be configured by changing the `match_on` setting.
-
-The following options are available :
-
-   * method (for example, POST or GET)
-   * uri (the full URI.)
-   * host (the hostname of the server receiving the request)
-   * port (the port of the server receiving the request)
-   * path (the path of the request)
-   * query (the query string of the request)
-   * body (the entire request body)
-   * headers (the headers of the request)
-   
-    Backwards compatible matchers:
-   * url (the `uri` alias)
-
-If these options don't work for you, you can also register your own request
-matcher.  This is described in the Advanced section of this README.
-
-## Record Modes
-VCR supports 4 record modes (with the same behavior as Ruby's VCR):
-
-### once
-
-  * Replay previously recorded interactions.
-  * Record new interactions if there is no cassette file.
-  * Cause an error to be raised for new requests if there is a cassette file.
- 
-It is similar to the new_episodes record mode, but will prevent new, unexpected
-requests from being made (i.e. because the request URI changed).
-
-once is the default record mode, used when you do not set one.
-
-### new_episodes
-
-  * Record new interactions.
-  * Replay previously recorded interactions.  It is similar to the once record
-    mode, but will always record new interactions, even if you have an existing
-    recorded one that is similar, but not identical.
-
-This was the default behavior in versions < 0.3.0
-
-### none
-
-  * Replay previously recorded interactions.
-  * Cause an error to be raised for any new requests.  This is useful when your
-    code makes potentially dangerous HTTP requests. The none record mode
-    guarantees that no new HTTP requests will be made.
-
-### all
-
-  * Record new interactions.
-  * Never replay previously recorded interactions.  This can be temporarily used
-    to force VCR to re-record a cassette (i.e. to ensure the responses are not
-    out of date) or can be used when you simply want to log all HTTP requests.
-
-## Advanced Features
-
-If you want, VCR.py can return information about the cassette it is using to
-record your requests and responses.  This will let you record your requests and
-responses and make assertions on them, to make sure that your code under test
-is generating the expected requests and responses.  This feature is not present
-in Ruby's VCR, but I think it is a nice addition.  Here's an example:
-
-```python
-import vcr
-import urllib2
-
-with vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml') as cass:
-    response = urllib2.urlopen('http://www.zombo.com/').read()
-    # cass should have 1 request inside it
-    assert len(cass) == 1 
-    # the request uri should have been http://www.zombo.com/
-    assert cass.requests[0].uri == 'http://www.zombo.com/'
-```
-
-The `Cassette` object exposes the following properties which I consider part of
-the API.  The fields are as follows:
-
-  * `requests`: A list of vcr.Request objects corresponding to the http requests
-     that were made during the recording of the cassette. The requests appear in the
-     order that they were originally processed.
-  * `responses`: A list of the responses made.
-  * `play_count`: The number of times this cassette has played back a response.
-  * `all_played`: A boolean indicating whether all the responses have been
-    played back.
-  * `responses_of(request)`: Access the responses that match a given request
-
-The `Request` object has the following properties:
-
-  * `uri`: The full uri of the request.  Example: "https://google.com/?q=vcrpy"
-  * `scheme`: The scheme used to make the request (http or https)
-  * `host`: The host of the request, for example "www.google.com"
-  * `port`: The port the request was made on
-  * `path`: The path of the request.  For example "/" or "/home.html"
-  * `query`: The parsed query string of the request. Sorted list of name, value pairs.
-  * `method` : The method used to make the request, for example "GET" or "POST"
-  * `body`: The body of the request, usually empty except for POST / PUT / etc
-
-  Backwards compatible properties:
-
-  * `url`: The `uri` alias
-  * `protocol`: The `scheme` alias
-
-
-## Register your own serializer
-
-Don't like JSON or YAML?  That's OK, VCR.py can serialize to any format you
-would like.  Create your own module or class instance with 2 methods:
-
-  * `def deserialize(cassette_string)`
-  * `def serialize(cassette_dict)`
-
-Finally, register your class with VCR to use your new serializer.
-
-```python
-import vcr
-
-class BogoSerializer(object):
-    """
-    Must implement serialize() and deserialize() methods
-    """
-    pass
-
-my_vcr = vcr.VCR()
-my_vcr.register_serializer('bogo', BogoSerializer())
-
-with my_vcr.use_cassette('test.bogo', serializer='bogo'):
-    # your http here
-
-# After you register, you can set the default serializer to your new serializer
-
-my_vcr.serializer = 'bogo'
-
-with my_vcr.use_cassette('test.bogo'):
-    # your http here
-
-```
-
-## Register your own request matcher
-
-Create your own method with the following signature
-
-```python
-def my_matcher(r1, r2):
-```    
-
-Your method receives the two requests and must return `True` if they match,
-`False` if they don't.
-
-Finally, register your method with VCR to use your new request matcher.
-
-```python
-import vcr
-
-def jurassic_matcher(r1, r2):
-    return r1.uri == r2.uri and 'JURASSIC PARK' in r1.body
-
-my_vcr = vcr.VCR()
-my_vcr.register_matcher('jurassic', jurassic_matcher)
-
-with my_vcr.use_cassette('test.yml', match_on=['jurassic']):
-    # your http here
-
-# After you register, you can set the default match_on to use your new matcher
-
-my_vcr.match_on = ['jurassic']
-
-with my_vcr.use_cassette('test.yml'):
-    # your http here
-
-```
-
-## Filter sensitive data from the request
-
-If you are checking your cassettes into source control, and are using some form
-of authentication in your tests, you can filter out that information so it won't
-appear in your cassette files.  There are a few ways to do this:
-
-### Filter information from HTTP Headers
-Use the `filter_headers` configuration option with a list of headers to filter.
-
-```python
-with my_vcr.use_cassette('test.yml', filter_headers=['authorization']):
-    # sensitive HTTP request goes here
-```
-
-### Filter information from HTTP querystring
-Use the `filter_query_parameters` configuration option with a list of query
-parameters to filter.
-
-```python
-with my_vcr.use_cassette('test.yml', filter_query_parameters=['api_key']):
-    requests.get('http://api.com/getdata?api_key=secretstring')
-```
-
-### Custom Request filtering
-
-If neither of these covers your request filtering needs, you can register a callback
-that will manipulate the HTTP request before adding it to the cassette. Use the
-`before_record` configuration option to so this.  Here is an example that will
- never record requests to the /login endpoint.
-
-```python
-def before_record_cb(request):
-    if request.path != '/login':
-        return request
-
-my_vcr = vcr.VCR(
-    before_record = before_record_cb,
-)
-with my_vcr.use_cassette('test.yml'):
-    # your http code here
-```
-
-You can also mutate the response using this callback. For example, you could
-remove all query parameters from any requests to the `'/login'` path.
-
-```python
-def scrub_login_request(request):
-    if request.path == '/login':
-        request.uri, _ =  urllib.splitquery(response.uri)
-    return request
-
-my_vcr = vcr.VCR(
-    before_record=scrub_login_request,
-)
-with my_vcr.use_cassette('test.yml'):
-    # your http code here
-```
-
-### Custom Response Filtering
-
-VCR.py also suports response filtering with the `before_record_response` keyword
-argument. It's usage is similar to that of `before_record`:
-
-```python
-def scrub_string(string, replacement=''):
-    def before_record_reponse(response):
-        return response['body']['string] = response['body']['string].replace(string, replacement)
-    return scrub_string
-
-my_vcr = vcr.VCR(
-    before_record=scrub_string(settings.USERNAME, 'username'),
-)
-with my_vcr.use_cassette('test.yml'):
-     # your http code here    
-```
-
-## Ignore requests
-
-If you would like to completely ignore certain requests, you can do it in a
-few ways:
-
- * Set the `ignore_localhost` option equal to True.  This will not record any
-   requests sent to (or responses from) localhost, 127.0.0.1, or 0.0.0.0.
- * Set the `ignore_hosts` configuration option to a list of hosts to ignore
- * Add a `before_record` callback that returns None for requests you want to
-   ignore
-
-Requests that are ignored by VCR will not be saved in a cassette, nor played
-back from a cassette.  VCR will completely ignore those requests as if it
-didn't notice them at all, and they will continue to hit the server as if VCR
-were not there.
-
-## Installation
-
-VCR.py is a package on PyPI, so you can `pip install vcrpy` (first you may need
-to `brew install libyaml` [[Homebrew](http://mxcl.github.com/homebrew/)])
-
-## Ruby VCR compatibility
-
-VCR.py does not aim to match the format of the Ruby VCR YAML files.  Cassettes
-generated by Ruby's VCR are not compatible with VCR.py.
-
-## Running VCR's test suite
-
-The tests are all run automatically on [Travis
-CI](https://travis-ci.org/kevin1024/vcrpy), but you can also run them yourself
-using [py.test](http://pytest.org/) and [Tox](http://tox.testrun.org/).  Tox
-will automatically run them in all environments VCR.py supports.  The test
-suite is pretty big and slow, but you can tell tox to only run specific tests
-like this:
-
-`tox -e py27requests -- -v -k "'test_status_code or test_gzip'"`
-
-This will run only tests that look like `test_status_code` or `test_gzip` in
-the test suite, and only in the python 2.7 environment that has `requests`
-installed.
-
-Also, in order for the boto tests to run, you will need an AWS key.  Refer to
-the [boto
-documentation](http://boto.readthedocs.org/en/latest/getting_started.html) for
-how to set this up. I have marked the boto tests as optional in Travis so you
-don't have to worry about them failing if you submit a pull request.
-
-
-## Logging
-VCR.py has a few log messages you can turn on to help you figure out if HTTP
-requests are hitting a real server or not.  You can turn them on like this:
-
-```python
-import vcr
-import requests
-import logging
-
-logging.basicConfig() # you need to initialize logging, otherwise you will not see anything from vcrpy
-vcr_log = logging.getLogger("vcr")
-vcr_log.setLevel(logging.INFO)
-
-with vcr.use_cassette('headers.yml'):
-        requests.get('http://httpbin.org/headers')
-```
-
-The first time you run this, you will see:
-
-```
-INFO:vcr.stubs:<Request (GET) http://httpbin.org/headers> not in cassette, sending to real server
-```
-
-The second time, you will see:
-
-```
-INFO:vcr.stubs:Playing response for <Request (GET) http://httpbin.org/headers> from cassette
-```
-
-If you set the loglevel to DEBUG, you will also get information about which
-matchers didn't match. This can help you with debugging custom matchers.
-
-
-## Upgrade
-
-### New Cassette Format
-The cassette format has changed in _VCR.py 1.x_, the _VCR.py 0.x_ cassettes
-cannot be used with _VCR.py 1.x_.  The easiest way to upgrade is to simply
-delete your cassettes and re-record all of them.  VCR.py also provides a
-migration script that attempts to upgrade your 0.x cassettes to the new 1.x
-format. To use it, run the following command:
-
-```
-python -m vcr.migration PATH
-```
-
-The PATH can be either a path to the directory with cassettes or the path to a
-single cassette.
-
-*Note*: Back up your cassettes files before migration.
-The migration *should* only modify cassettes using the old 0.x format.
-
-## New serializer / deserializer API
-
-If you made a custom serializer, you will need to update it to match the new
-API in version 1.0.x
-
- * Serializers now take dicts and return strings.
- * Deserializers take strings and return dicts (instead of requests, responses
-   pair)
-
-
-## Changelog
-  * 1.1.0 Add `before_record_response`. Fix several bugs related to the context
-    management of cassettes.
-  * 1.0.3: Fix an issue with requests 2.4 and make sure case sensitivity is
-    consistent across python versions
-  * 1.0.2: Fix an issue with requests 2.3
-  * 1.0.1: Fix a bug with the new ignore requests feature and the once
-    record mode
-  * 1.0.0: _BACKWARDS INCOMPATIBLE_: Please see the 'upgrade' section in the
-    README.  Take a look at the matcher section as well, you might want to
-    update your `match_on` settings.  Add support for filtering sensitive
-    data from requests, matching query strings after the order changes and
-    improving the built-in matchers, (thanks to @mshytikov), support for 
-    ignoring requests to certain hosts, bump supported Python3 version to
-    3.4, fix some bugs with Boto support (thanks @marusich), fix error with
-    URL field capitalization in README (thanks @simon-weber), added some log
-    messages to help with debugging, added `all_played` property on cassette
-    (thanks @mshytikov)
-  * 0.7.0: VCR.py now supports Python 3! (thanks @asundg)  Also I refactored
-    the stub connections quite a bit to add support for the putrequest and
-    putheader calls.  This version also adds support for httplib2 (thanks
-    @nilp0inter).  I have added a couple tests for boto since it is an http 
-    client in its own right.  Finally, this version includes a fix for a bug 
-    where requests wasn't being patched properly (thanks @msabramo).
-  * 0.6.0: Store response headers as a list since a HTTP response can have the
-    same header twice (happens with set-cookie sometimes).  This has the added
-    benefit of preserving the order of headers. Thanks @smallcode for the bug
-    report leading to this change.  I have made an effort to ensure backwards
-    compatibility with the old cassettes' header storage mechanism, but if you
-    want to upgrade to the new header storage, you should delete your
-    cassettes and re-record them.  Also this release adds better error messages
-    (thanks @msabramo) and adds support for using VCR as a decorator (thanks 
-    @smallcode for the motivation)
-  * 0.5.0: Change the `response_of` method to `responses_of` since cassettes
-    can now contain more than one response for a request.  Since this changes
-    the API, I'm bumping the version.  Also includes 2 bugfixes: a better error
-    message when attempting to overwrite a cassette file, and a fix for a bug 
-    with requests sessions (thanks @msabramo)
-  * 0.4.0: Change default request recording behavior for multiple requests.  If
-    you make the same request multiple times to the same URL, the response
-    might be different each time (maybe the response has a timestamp in it or
-    something), so this will make the same request multiple times and save them
-    all.  Then, when you are replaying the cassette, the responses will be 
-    played back in the same order in which they were received.  If you were
-     making multiple requests to the same URL in a cassette before version
-    0.4.0, you might need to regenerate your cassette files.  Also, removes
-    support for the cassette.play_count counter API, since individual requests
-    aren't unique anymore.  A cassette might contain the same request several
-    times.  Also removes secure overwrite feature since that was breaking
-    overwriting files in Windows, and fixes a bug preventing request's
-    automatic body decompression from working.
-  * 0.3.5: Fix compatibility with requests 2.x
-  * 0.3.4: Bugfix: close file before renaming it.  This fixes an issue on
-    Windows.  Thanks @smallcode for the fix.
-  * 0.3.3: Bugfix for error message when an unreigstered custom matcher was
-    used
-  * 0.3.2: Fix issue with new config syntax and the `match_on` parameter.
-    Thanks, @chromy!
-  * 0.3.1: Fix issue causing full paths to be sent on the HTTP request line.
-  * 0.3.0: *Backwards incompatible release* - Added support for record modes,
-    and changed the default recording behavior to the "once" record mode.
-    Please see the documentation on record modes for more.  Added support for
-    custom request matching, and changed the default request matching behavior to
-    match only on the URL and method. Also, improved the httplib mocking to add
-    support for the `HTTPConnection.send()` method.  This means that requests won't
-    actually be sent until the response is read, since I need to record the entire
-    request in order to match up the appropriate response.  I don't think this
-    should cause any issues unless you are sending requests without ever loading
-    the response (which none of the standard httplib wrappers do, as far as I know.
-    Thanks to @fatuhoku for some of the ideas and the motivation behind this
-    release.
-  * 0.2.1: Fixed missing modules in setup.py
-  * 0.2.0: Added configuration API, which lets you configure some settings on
-    VCR (see the README). Also, VCR no longer saves cassettes if they haven't
-    changed at all and supports JSON as well as YAML (thanks @sirpengi).  Added
-    amazing new skeumorphic logo, thanks @hairarrow.
-  * 0.1.0: *backwards incompatible release - delete your old cassette files*:
-    This release adds the ability to access the cassette to make assertions on
-    it, as well as a major code refactor thanks to @dlecocq.  It also fixes a
-    couple longstanding bugs with redirects and HTTPS. [#3 and #4]
-  * 0.0.4: If you have libyaml installed, vcrpy will use the c bindings
-    instead.  Speed up your tests!  Thanks @dlecocq
-  * 0.0.3: Add support for requests 1.2.3.  Support for older versions of
-    requests dropped (thanks @vitormazzi and @bryanhelmig)
-  * 0.0.2: Add support for requests / urllib3
-  * 0.0.1: Initial Release
-
-# License
-
-This library uses the MIT license.  See [LICENSE.txt](LICENSE.txt) for more details

README.rst

@@ -0,0 +1,782 @@
+|Build Status| |Stories in Ready| |Gitter|
+
+VCR.py
+======
+
+.. image:: https://raw.github.com/kevin1024/vcrpy/master/vcr.png
+   :alt: vcr.py
+
+This is a Python version of `Ruby's VCR
+library <https://github.com/vcr/vcr>`__.
+
+What it does
+------------
+
+VCR.py simplifies and speeds up tests that make HTTP requests. The
+first time you run code that is inside a VCR.py context manager or
+decorated function, VCR.py records all HTTP interactions that take
+place through the libraries it supports and serializes and writes them
+to a flat file (in yaml format by default). This flat file is called a
+cassette. When the relevant peice of code is executed again, VCR.py
+will read the serialized requests and responses from the
+aforementioned cassette file, and intercept any HTTP requests that it
+recognizes from the original test run and return the responses that
+corresponded to those requests. This means that the requests will not
+actually result in HTTP traffic, which confers several benefits
+including:
+
+-  The ability to work offline
+-  Completely deterministic tests
+-  Increased test execution speed
+
+If the server you are testing against ever changes its API, all you need
+to do is delete your existing cassette files, and run your tests again.
+VCR.py will detect the absence of a cassette file and once again record
+all HTTP interactions, which will update them to correspond to the new
+API.
+
+Compatibility Notes
+-------------------
+
+VCR.py supports Python 2.6 and 2.7, 3.3, 3.4, and
+`pypy <http://pypy.org>`__.
+
+The following http libraries are supported:
+
+-  urllib2
+-  urllib3
+-  http.client (python3)
+-  requests (both 1.x and 2.x versions)
+-  httplib2
+-  boto
+-  Tornado's AsyncHTTPClient
+
+Usage
+-----
+
+.. code:: python
+
+    import vcr
+    import urllib2
+
+    with vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml'):
+        response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()
+        assert 'Example domains' in response
+
+Run this test once, and VCR.py will record the HTTP request to
+``fixtures/vcr_cassettes/synopsis.yml``. Run it again, and VCR.py will
+replay the response from iana.org when the http request is made. This
+test is now fast (no real HTTP requests are made anymore), deterministic
+(the test will continue to pass, even if you are offline, or iana.org
+goes down for maintenance) and accurate (the response will contain the
+same headers and body you get from a real request).
+
+You can also use VCR.py as a decorator. The same request above would
+look like this:
+
+.. code:: python
+
+    @vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml')
+    def test_iana():
+        response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()
+        assert 'Example domains' in response
+
+When using the decorator version of ``use_cassette``, it is possible to
+omit the path to the cassette file.
+
+.. code:: python
+
+    @vcr.use_cassette()
+    def test_iana():
+        response = urllib2.urlopen('http://www.iana.org/domains/reserved').read()
+        assert 'Example domains' in response
+
+In this case, the cassette file will be given the same name as the test
+function, and it will be placed in the same directory as the file in
+which the test is defined. See the Automatic Test Naming section below
+for more details.
+
+Configuration
+-------------
+
+If you don't like VCR's defaults, you can set options by instantiating a
+``VCR`` class and setting the options on it.
+
+.. code:: python
+
+
+    import vcr
+
+    my_vcr = vcr.VCR(
+        serializer='json',
+        cassette_library_dir='fixtures/cassettes',
+        record_mode='once',
+        match_on=['uri', 'method'],
+    )
+
+    with my_vcr.use_cassette('test.json'):
+        # your http code here
+
+Otherwise, you can override options each time you use a cassette.
+
+.. code:: python
+
+    with vcr.use_cassette('test.yml', serializer='json', record_mode='once'):
+        # your http code here
+
+Note: Per-cassette overrides take precedence over the global config.
+
+Request matching
+----------------
+
+Request matching is configurable and allows you to change which requests
+VCR considers identical. The default behavior is
+``['method', 'scheme', 'host', 'port', 'path', 'query']`` which means
+that requests with both the same URL and method (ie POST or GET) are
+considered identical.
+
+This can be configured by changing the ``match_on`` setting.
+
+The following options are available :
+
+-  method (for example, POST or GET)
+-  uri (the full URI.)
+-  host (the hostname of the server receiving the request)
+-  port (the port of the server receiving the request)
+-  path (the path of the request)
+-  query (the query string of the request)
+-  raw\_body (the entire request body as is)
+-  body (the entire request body unmarshalled by content-type
+   i.e. xmlrpc, json, form-urlencoded, falling back on raw\_body)
+-  headers (the headers of the request)
+
+   Backwards compatible matchers:
+-  url (the ``uri`` alias)
+
+If these options don't work for you, you can also register your own
+request matcher. This is described in the Advanced section of this
+README.
+
+Record Modes
+------------
+
+VCR supports 4 record modes (with the same behavior as Ruby's VCR):
+
+once
+~~~~
+
+-  Replay previously recorded interactions.
+-  Record new interactions if there is no cassette file.
+-  Cause an error to be raised for new requests if there is a cassette
+   file.
+
+It is similar to the new\_episodes record mode, but will prevent new,
+unexpected requests from being made (i.e. because the request URI
+changed).
+
+once is the default record mode, used when you do not set one.
+
+new\_episodes
+~~~~~~~~~~~~~
+
+-  Record new interactions.
+-  Replay previously recorded interactions. It is similar to the once
+   record mode, but will always record new interactions, even if you
+   have an existing recorded one that is similar, but not identical.
+
+This was the default behavior in versions < 0.3.0
+
+none
+~~~~
+
+-  Replay previously recorded interactions.
+-  Cause an error to be raised for any new requests. This is useful when
+   your code makes potentially dangerous HTTP requests. The none record
+   mode guarantees that no new HTTP requests will be made.
+
+all
+~~~
+
+-  Record new interactions.
+-  Never replay previously recorded interactions. This can be
+   temporarily used to force VCR to re-record a cassette (i.e. to ensure
+   the responses are not out of date) or can be used when you simply
+   want to log all HTTP requests.
+
+Advanced Features
+-----------------
+
+If you want, VCR.py can return information about the cassette it is
+using to record your requests and responses. This will let you record
+your requests and responses and make assertions on them, to make sure
+that your code under test is generating the expected requests and
+responses. This feature is not present in Ruby's VCR, but I think it is
+a nice addition. Here's an example:
+
+.. code:: python
+
+    import vcr
+    import urllib2
+
+    with vcr.use_cassette('fixtures/vcr_cassettes/synopsis.yaml') as cass:
+        response = urllib2.urlopen('http://www.zombo.com/').read()
+        # cass should have 1 request inside it
+        assert len(cass) == 1 
+        # the request uri should have been http://www.zombo.com/
+        assert cass.requests[0].uri == 'http://www.zombo.com/'
+
+The ``Cassette`` object exposes the following properties which I
+consider part of the API. The fields are as follows:
+
+-  ``requests``: A list of vcr.Request objects corresponding to the http
+   requests that were made during the recording of the cassette. The
+   requests appear in the order that they were originally processed.
+-  ``responses``: A list of the responses made.
+-  ``play_count``: The number of times this cassette has played back a
+   response.
+-  ``all_played``: A boolean indicating whether all the responses have
+   been played back.
+-  ``responses_of(request)``: Access the responses that match a given
+   request
+
+The ``Request`` object has the following properties:
+
+-  ``uri``: The full uri of the request. Example:
+   "https://google.com/?q=vcrpy"
+-  ``scheme``: The scheme used to make the request (http or https)
+-  ``host``: The host of the request, for example "www.google.com"
+-  ``port``: The port the request was made on
+-  ``path``: The path of the request. For example "/" or "/home.html"
+-  ``query``: The parsed query string of the request. Sorted list of
+   name, value pairs.
+-  ``method`` : The method used to make the request, for example "GET"
+   or "POST"
+-  ``body``: The body of the request, usually empty except for POST /
+   PUT / etc
+
+Backwards compatible properties:
+
+-  ``url``: The ``uri`` alias
+-  ``protocol``: The ``scheme`` alias
+
+Register your own serializer
+----------------------------
+
+Don't like JSON or YAML? That's OK, VCR.py can serialize to any format
+you would like. Create your own module or class instance with 2 methods:
+
+-  ``def deserialize(cassette_string)``
+-  ``def serialize(cassette_dict)``
+
+Finally, register your class with VCR to use your new serializer.
+
+.. code:: python
+
+    import vcr
+
+    class BogoSerializer(object):
+        """
+        Must implement serialize() and deserialize() methods
+        """
+        pass
+
+    my_vcr = vcr.VCR()
+    my_vcr.register_serializer('bogo', BogoSerializer())
+
+    with my_vcr.use_cassette('test.bogo', serializer='bogo'):
+        # your http here
+
+    # After you register, you can set the default serializer to your new serializer
+
+    my_vcr.serializer = 'bogo'
+
+    with my_vcr.use_cassette('test.bogo'):
+        # your http here
+
+Register your own request matcher
+---------------------------------
+
+Create your own method with the following signature
+
+.. code:: python
+
+    def my_matcher(r1, r2):
+
+Your method receives the two requests and must return ``True`` if they
+match, ``False`` if they don't.
+
+Finally, register your method with VCR to use your new request matcher.
+
+.. code:: python
+
+    import vcr
+
+    def jurassic_matcher(r1, r2):
+        return r1.uri == r2.uri and 'JURASSIC PARK' in r1.body
+
+    my_vcr = vcr.VCR()
+    my_vcr.register_matcher('jurassic', jurassic_matcher)
+
+    with my_vcr.use_cassette('test.yml', match_on=['jurassic']):
+        # your http here
+
+    # After you register, you can set the default match_on to use your new matcher
+
+    my_vcr.match_on = ['jurassic']
+
+    with my_vcr.use_cassette('test.yml'):
+        # your http here
+
+Filter sensitive data from the request
+--------------------------------------
+
+If you are checking your cassettes into source control, and are using
+some form of authentication in your tests, you can filter out that
+information so it won't appear in your cassette files. There are a few
+ways to do this:
+
+Filter information from HTTP Headers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Use the ``filter_headers`` configuration option with a list of headers
+to filter.
+
+.. code:: python
+
+    with my_vcr.use_cassette('test.yml', filter_headers=['authorization']):
+        # sensitive HTTP request goes here
+
+Filter information from HTTP querystring
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Use the ``filter_query_parameters`` configuration option with a list of
+query parameters to filter.
+
+.. code:: python
+
+    with my_vcr.use_cassette('test.yml', filter_query_parameters=['api_key']):
+        requests.get('http://api.com/getdata?api_key=secretstring')
+
+Filter information from HTTP post data
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Use the ``filter_post_data_parameters`` configuration option with a list
+of post data parameters to filter.
+
+.. code:: python
+
+    with my_vcr.use_cassette('test.yml', filter_post_data_parameters=['client_secret']):
+        requests.post('http://api.com/postdata', data={'api_key': 'secretstring'})
+
+Custom Request filtering
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+If none of these covers your request filtering needs, you can register a
+callback that will manipulate the HTTP request before adding it to the
+cassette. Use the ``before_record`` configuration option to so this.
+Here is an example that will never record requests to the /login
+endpoint.
+
+.. code:: python
+
+    def before_record_cb(request):
+        if request.path != '/login':
+            return request
+
+    my_vcr = vcr.VCR(
+        before_record = before_record_cb,
+    )
+    with my_vcr.use_cassette('test.yml'):
+        # your http code here
+
+You can also mutate the response using this callback. For example, you
+could remove all query parameters from any requests to the ``'/login'``
+path.
+
+.. code:: python
+
+    def scrub_login_request(request):
+        if request.path == '/login':
+            request.uri, _ =  urllib.splitquery(response.uri)
+        return request
+
+    my_vcr = vcr.VCR(
+        before_record=scrub_login_request,
+    )
+    with my_vcr.use_cassette('test.yml'):
+        # your http code here
+
+Custom Response Filtering
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+VCR.py also suports response filtering with the
+``before_record_response`` keyword argument. It's usage is similar to
+that of ``before_record``:
+
+.. code:: python
+
+    def scrub_string(string, replacement=''):
+        def before_record_response(response):
+            response['body']['string'] = response['body']['string'].replace(string, replacement)
+            return response
+        return before_record_response
+
+    my_vcr = vcr.VCR(
+        before_record_response=scrub_string(settings.USERNAME, 'username'),
+    )
+    with my_vcr.use_cassette('test.yml'):
+         # your http code here    
+
+Ignore requests
+---------------
+
+If you would like to completely ignore certain requests, you can do it
+in a few ways:
+
+-  Set the ``ignore_localhost`` option equal to True. This will not
+   record any requests sent to (or responses from) localhost, 127.0.0.1,
+   or 0.0.0.0.
+-  Set the ``ignore_hosts`` configuration option to a list of hosts to
+   ignore
+-  Add a ``before_record`` callback that returns None for requests you
+   want to ignore
+
+Requests that are ignored by VCR will not be saved in a cassette, nor
+played back from a cassette. VCR will completely ignore those requests
+as if it didn't notice them at all, and they will continue to hit the
+server as if VCR were not there.
+
+Custom Patches
+--------------
+
+If you use a custom ``HTTPConnection`` class, or otherwise make http
+requests in a way that requires additional patching, you can use the
+``custom_patches`` keyword argument of the ``VCR`` and ``Cassette``
+objects to patch those objects whenever a cassette's context is entered.
+To patch a custom version of ``HTTPConnection`` you can do something
+like this:
+
+::
+
+    import where_the_custom_https_connection_lives
+    from vcr.stubs import VCRHTTPSConnection
+    my_vcr = config.VCR(custom_patches=((where_the_custom_https_connection_lives, 'CustomHTTPSConnection', VCRHTTPSConnection),))
+
+    @my_vcr.use_cassette(...)
+
+Automatic Cassette Naming
+-------------------------
+
+VCR.py now allows the omission of the path argument to the use\_cassette
+function. Both of the following are now legal/should work
+
+.. code:: python
+
+    @my_vcr.use_cassette
+    def my_test_function():
+        ...
+
+.. code:: python
+
+    @my_vcr.use_cassette()
+    def my_test_function():
+        ...
+
+In both cases, VCR.py will use a path that is generated from the
+provided test function's name. If no ``cassette_library_dir`` has been
+set, the cassette will be in a file with the name of the test function
+in directory of the file in which the test function is declared. If a
+``cassette_library_dir`` has been set, the cassette will appear in that
+directory in a file with the name of the decorated function.
+
+It is possible to control the path produced by the automatic naming
+machinery by customizing the ``path_transformer`` and
+``func_path_generator`` vcr variables. To add an extension to all
+cassette names, use ``VCR.ensure_suffix`` as follows:
+
+.. code:: python
+
+    my_vcr = VCR(path_transformer=VCR.ensure_suffix('.yaml'))
+
+    @my_vcr.use_cassette
+    def my_test_function():
+
+Installation
+------------
+
+VCR.py is a package on PyPI, so you can ``pip install vcrpy`` (first you
+may need to ``brew install libyaml``
+[`Homebrew <http://mxcl.github.com/homebrew/>`__\ ])
+
+Ruby VCR compatibility
+----------------------
+
+VCR.py does not aim to match the format of the Ruby VCR YAML files.
+Cassettes generated by Ruby's VCR are not compatible with VCR.py.
+
+Running VCR's test suite
+------------------------
+
+The tests are all run automatically on `Travis
+CI <https://travis-ci.org/kevin1024/vcrpy>`__, but you can also run them
+yourself using `py.test <http://pytest.org/>`__ and
+`Tox <http://tox.testrun.org/>`__. Tox will automatically run them in
+all environments VCR.py supports. The test suite is pretty big and slow,
+but you can tell tox to only run specific tests like this:
+
+``tox -e py27requests -- -v -k "'test_status_code or test_gzip'"``
+
+This will run only tests that look like ``test_status_code`` or
+``test_gzip`` in the test suite, and only in the python 2.7 environment
+that has ``requests`` installed.
+
+Also, in order for the boto tests to run, you will need an AWS key.
+Refer to the `boto
+documentation <http://boto.readthedocs.org/en/latest/getting_started.html>`__
+for how to set this up. I have marked the boto tests as optional in
+Travis so you don't have to worry about them failing if you submit a
+pull request.
+
+Logging
+-------
+
+VCR.py has a few log messages you can turn on to help you figure out if
+HTTP requests are hitting a real server or not. You can turn them on
+like this:
+
+.. code:: python
+
+    import vcr
+    import requests
+    import logging
+
+    logging.basicConfig() # you need to initialize logging, otherwise you will not see anything from vcrpy
+    vcr_log = logging.getLogger("vcr")
+    vcr_log.setLevel(logging.INFO)
+
+    with vcr.use_cassette('headers.yml'):
+            requests.get('http://httpbin.org/headers')
+
+The first time you run this, you will see:
+
+::
+
+    INFO:vcr.stubs:<Request (GET) http://httpbin.org/headers> not in cassette, sending to real server
+
+The second time, you will see:
+
+::
+
+    INFO:vcr.stubs:Playing response for <Request (GET) http://httpbin.org/headers> from cassette
+
+If you set the loglevel to DEBUG, you will also get information about
+which matchers didn't match. This can help you with debugging custom
+matchers.
+
+Speed
+-----
+VCR.py runs about 10x faster when pyyaml can use the libyaml extensions. However, just installing ``libyaml`` (Mac) or ``libyaml-dev`` (Linux) is not enough, as pyyaml needs to be rebuild with the proper flag. Note that this flag is cached by pip, so clear the cache first. 
+
+Are you using libyaml already? This should work:
+
+.. code:: sh
+
+    python -c 'from yaml import CLoader'
+
+If not:
+
+.. code:: sh
+
+    pip uninstall pyyaml
+    pip --no-cache-dir install pyyaml
+
+
+Upgrade
+-------
+
+New Cassette Format
+~~~~~~~~~~~~~~~~~~~
+
+The cassette format has changed in *VCR.py 1.x*, the *VCR.py 0.x*
+cassettes cannot be used with *VCR.py 1.x*. The easiest way to upgrade
+is to simply delete your cassettes and re-record all of them. VCR.py
+also provides a migration script that attempts to upgrade your 0.x
+cassettes to the new 1.x format. To use it, run the following command:
+
+::
+
+    python -m vcr.migration PATH
+
+The PATH can be either a path to the directory with cassettes or the
+path to a single cassette.
+
+*Note*: Back up your cassettes files before migration. The migration
+*should* only modify cassettes using the old 0.x format.
+
+New serializer / deserializer API
+---------------------------------
+
+If you made a custom serializer, you will need to update it to match the
+new API in version 1.0.x
+
+-  Serializers now take dicts and return strings.
+-  Deserializers take strings and return dicts (instead of requests,
+   responses pair)
+
+Changelog
+---------
+-  1.7.4 [#217] Make use_cassette decorated functions actually return a
+   value (thanks @bcen). [#199] Fix path transfromation defaults.
+   Better headers dictionary management.
+-  1.7.3 [#188] ``additional_matchers`` kwarg on ``use_cassette``.
+   [#191] Actually support passing multiple before_record_request
+   functions (thanks @agriffis).
+-  1.7.2 [#186] Get effective_url in tornado (thanks @mvschaik), [#187]
+   Set request_time on Response object in tornado (thanks @abhinav).
+-  1.7.1 [#183] Patch ``fetch_impl`` instead of the entire HTTPClient
+   class for Tornado (thanks @abhinav).
+-  1.7.0 [#177] Properly support coroutine/generator decoration. [#178]
+   Support distribute (thanks @graingert). [#163] Make compatibility
+   between python2 and python3 recorded cassettes more robust (thanks
+   @gward).
+-  1.6.1 [#169] Support conditional requirements in old versions of
+   pip, Fix RST parse errors generated by pandoc, [Tornado] Fix
+   unsupported features exception not being raised, [#166]
+   content-aware body matcher.
+-  1.6.0 [#120] Tornado support (thanks @abhinav), [#147] packaging fixes
+   (thanks @graingert), [#158] allow filtering post params in requests
+   (thanks @MrJohz), [#140] add xmlrpclib support (thanks @Diaoul).
+-  1.5.2 Fix crash when cassette path contains cassette library
+   directory (thanks @gazpachoking).
+-  1.5.0 Automatic cassette naming and 'application/json' post data
+   filtering (thanks @marco-santamaria).
+-  1.4.2 Fix a bug caused by requests 2.7 and chunked transfer encoding
+-  1.4.1 Include README, tests, LICENSE in package. Thanks @ralphbean.
+-  1.4.0 Filter post data parameters (thanks @eadmundo), support for
+   posting files through requests, inject\_cassette kwarg to access
+   cassette from ``use_cassette`` decorated function,
+   ``with_current_defaults`` actually works (thanks @samstav).
+-  1.3.0 Fix/add support for urllib3 (thanks @aisch), fix default port
+   for https (thanks @abhinav).
+-  1.2.0 Add custom\_patches argument to VCR/Cassette objects to allow
+   users to stub custom classes when cassettes become active.
+-  1.1.4 Add force reset around calls to actual connection from stubs,
+   to ensure compatibility with the version of httplib/urlib2 in python
+   2.7.9.
+-  1.1.3 Fix python3 headers field (thanks @rtaboada), fix boto test
+   (thanks @telaviv), fix new\_episodes record mode (thanks @jashugan),
+   fix Windows connectionpool stub bug (thanks @gazpachoking), add
+   support for requests 2.5
+-  1.1.2 Add urllib==1.7.1 support. Make json serialize error handling
+   correct Improve logging of match failures.
+-  1.1.1 Use function signature preserving ``wrapt.decorator`` to write
+   the decorator version of use\_cassette in order to ensure
+   compatibility with py.test fixtures and python 2. Move all request
+   filtering into the ``before_record_callable``.
+-  1.1.0 Add ``before_record_response``. Fix several bugs related to the
+   context management of cassettes.
+-  1.0.3: Fix an issue with requests 2.4 and make sure case sensitivity
+   is consistent across python versions
+-  1.0.2: Fix an issue with requests 2.3
+-  1.0.1: Fix a bug with the new ignore requests feature and the once
+   record mode
+-  1.0.0: *BACKWARDS INCOMPATIBLE*: Please see the 'upgrade' section in
+   the README. Take a look at the matcher section as well, you might
+   want to update your ``match_on`` settings. Add support for filtering
+   sensitive data from requests, matching query strings after the order
+   changes and improving the built-in matchers, (thanks to @mshytikov),
+   support for ignoring requests to certain hosts, bump supported
+   Python3 version to 3.4, fix some bugs with Boto support (thanks
+   @marusich), fix error with URL field capitalization in README (thanks
+   @simon-weber), added some log messages to help with debugging, added
+   ``all_played`` property on cassette (thanks @mshytikov)
+-  0.7.0: VCR.py now supports Python 3! (thanks @asundg) Also I
+   refactored the stub connections quite a bit to add support for the
+   putrequest and putheader calls. This version also adds support for
+   httplib2 (thanks @nilp0inter). I have added a couple tests for boto
+   since it is an http client in its own right. Finally, this version
+   includes a fix for a bug where requests wasn't being patched properly
+   (thanks @msabramo).
+-  0.6.0: Store response headers as a list since a HTTP response can
+   have the same header twice (happens with set-cookie sometimes). This
+   has the added benefit of preserving the order of headers. Thanks
+   @smallcode for the bug report leading to this change. I have made an
+   effort to ensure backwards compatibility with the old cassettes'
+   header storage mechanism, but if you want to upgrade to the new
+   header storage, you should delete your cassettes and re-record them.
+   Also this release adds better error messages (thanks @msabramo) and
+   adds support for using VCR as a decorator (thanks @smallcode for the
+   motivation)
+-  0.5.0: Change the ``response_of`` method to ``responses_of`` since
+   cassettes can now contain more than one response for a request. Since
+   this changes the API, I'm bumping the version. Also includes 2
+   bugfixes: a better error message when attempting to overwrite a
+   cassette file, and a fix for a bug with requests sessions (thanks
+   @msabramo)
+-  0.4.0: Change default request recording behavior for multiple
+   requests. If you make the same request multiple times to the same
+   URL, the response might be different each time (maybe the response
+   has a timestamp in it or something), so this will make the same
+   request multiple times and save them all. Then, when you are
+   replaying the cassette, the responses will be played back in the same
+   order in which they were received. If you were making multiple
+   requests to the same URL in a cassette before version 0.4.0, you
+   might need to regenerate your cassette files. Also, removes support
+   for the cassette.play\_count counter API, since individual requests
+   aren't unique anymore. A cassette might contain the same request
+   several times. Also removes secure overwrite feature since that was
+   breaking overwriting files in Windows, and fixes a bug preventing
+   request's automatic body decompression from working.
+-  0.3.5: Fix compatibility with requests 2.x
+-  0.3.4: Bugfix: close file before renaming it. This fixes an issue on
+   Windows. Thanks @smallcode for the fix.
+-  0.3.3: Bugfix for error message when an unreigstered custom matcher
+   was used
+-  0.3.2: Fix issue with new config syntax and the ``match_on``
+   parameter. Thanks, @chromy!
+-  0.3.1: Fix issue causing full paths to be sent on the HTTP request
+   line.
+-  0.3.0: *Backwards incompatible release* - Added support for record
+   modes, and changed the default recording behavior to the "once"
+   record mode. Please see the documentation on record modes for more.
+   Added support for custom request matching, and changed the default
+   request matching behavior to match only on the URL and method. Also,
+   improved the httplib mocking to add support for the
+   ``HTTPConnection.send()`` method. This means that requests won't
+   actually be sent until the response is read, since I need to record
+   the entire request in order to match up the appropriate response. I
+   don't think this should cause any issues unless you are sending
+   requests without ever loading the response (which none of the
+   standard httplib wrappers do, as far as I know. Thanks to @fatuhoku
+   for some of the ideas and the motivation behind this release.
+-  0.2.1: Fixed missing modules in setup.py
+-  0.2.0: Added configuration API, which lets you configure some
+   settings on VCR (see the README). Also, VCR no longer saves cassettes
+   if they haven't changed at all and supports JSON as well as YAML
+   (thanks @sirpengi). Added amazing new skeumorphic logo, thanks
+   @hairarrow.
+-  0.1.0: *backwards incompatible release - delete your old cassette
+   files*: This release adds the ability to access the cassette to make
+   assertions on it, as well as a major code refactor thanks to
+   @dlecocq. It also fixes a couple longstanding bugs with redirects and
+   HTTPS. [#3 and #4]
+-  0.0.4: If you have libyaml installed, vcrpy will use the c bindings
+   instead. Speed up your tests! Thanks @dlecocq
+-  0.0.3: Add support for requests 1.2.3. Support for older versions of
+   requests dropped (thanks @vitormazzi and @bryanhelmig)
+-  0.0.2: Add support for requests / urllib3
+-  0.0.1: Initial Release
+
+License
+=======
+
+This library uses the MIT license. See `LICENSE.txt <LICENSE.txt>`__ for
+more details
+
+.. |Build Status| image:: https://secure.travis-ci.org/kevin1024/vcrpy.png?branch=master
+   :target: http://travis-ci.org/kevin1024/vcrpy
+.. |Stories in Ready| image:: https://badge.waffle.io/kevin1024/vcrpy.png?label=ready&title=Ready
+   :target: https://waffle.io/kevin1024/vcrpy
+.. |Gitter| image:: https://badges.gitter.im/Join%20Chat.svg
+   :alt: Join the chat at https://gitter.im/kevin1024/vcrpy
+   :target: https://gitter.im/kevin1024/vcrpy?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge

docs/Makefile

@@ -0,0 +1,192 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# User-friendly check for sphinx-build
+ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
+$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
+endif
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest coverage gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  applehelp  to make an Apple Help Book"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  xml        to make Docutils-native XML files"
+	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+	@echo "  coverage   to run coverage check of the documentation (if enabled)"
+
+clean:
+	rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/vcrpy.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/vcrpy.qhc"
+
+applehelp:
+	$(SPHINXBUILD) -b applehelp $(ALLSPHINXOPTS) $(BUILDDIR)/applehelp
+	@echo
+	@echo "Build finished. The help book is in $(BUILDDIR)/applehelp."
+	@echo "N.B. You won't be able to view it unless you put it in" \
+	      "~/Library/Documentation/Help or install it in your application" \
+	      "bundle."
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/vcrpy"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/vcrpy"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+latexpdfja:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through platex and dvipdfmx..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."
+
+coverage:
+	$(SPHINXBUILD) -b coverage $(ALLSPHINXOPTS) $(BUILDDIR)/coverage
+	@echo "Testing of coverage in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/coverage/python.txt."
+
+xml:
+	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
+	@echo
+	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
+
+pseudoxml:
+	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
+	@echo
+	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."

docs/conf.py

@@ -0,0 +1,293 @@
+# -*- coding: utf-8 -*-
+#
+# vcrpy documentation build configuration file, created by
+# sphinx-quickstart on Sun Sep 13 11:18:00 2015.
+#
+# This file is execfile()d with the current directory set to its
+# containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys
+import os
+import shlex
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#sys.path.insert(0, os.path.abspath('.'))
+
+# -- General configuration ------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.intersphinx',
+    'sphinx.ext.coverage',
+    'sphinx.ext.viewcode',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+# source_suffix = ['.rst', '.md']
+source_suffix = '.rst'
+
+# The encoding of source files.
+#source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'vcrpy'
+copyright = u'2015, Kevin McCarthy'
+author = u'Kevin McCarthy'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = '1.7.3'
+# The full version, including alpha/beta/rc tags.
+release = '1.7.3'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+#today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = ['_build']
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+#default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+#modindex_common_prefix = []
+
+# If true, keep warnings as "system message" paragraphs in the built documents.
+#keep_warnings = False
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = False
+
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = 'alabaster'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+#html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+#html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+#html_logo = None
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Add any extra paths that contain custom files (such as robots.txt or
+# .htaccess) here, relative to this directory. These files are copied
+# directly to the root of the documentation.
+#html_extra_path = []
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+#html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_domain_indices = True
+
+# If false, no index is generated.
+#html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+#html_file_suffix = None
+
+# Language to be used for generating the HTML full-text search index.
+# Sphinx supports the following languages:
+#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
+#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
+#html_search_language = 'en'
+
+# A dictionary with options for the search language support, empty by default.
+# Now only 'ja' uses this config value
+#html_search_options = {'type': 'default'}
+
+# The name of a javascript file (relative to the configuration directory) that
+# implements a search results scorer. If empty, the default will be used.
+#html_search_scorer = 'scorer.js'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'vcrpydoc'
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+# The paper size ('letterpaper' or 'a4paper').
+#'papersize': 'letterpaper',
+
+# The font size ('10pt', '11pt' or '12pt').
+#'pointsize': '10pt',
+
+# Additional stuff for the LaTeX preamble.
+#'preamble': '',
+
+# Latex figure (float) alignment
+#'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+  (master_doc, 'vcrpy.tex', u'vcrpy Documentation',
+   u'Kevin McCarthy', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#latex_use_parts = False
+
+# If true, show page references after internal links.
+#latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_domain_indices = True
+
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'vcrpy', u'vcrpy Documentation',
+     [author], 1)
+]
+
+# If true, show URL addresses after external links.
+#man_show_urls = False
+
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+  (master_doc, 'vcrpy', u'vcrpy Documentation',
+   author, 'vcrpy', 'One line description of project.',
+   'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#texinfo_appendices = []
+
+# If false, no module index is generated.
+#texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#texinfo_show_urls = 'footnote'
+
+# If true, do not generate a @detailmenu in the "Top" node's menu.
+#texinfo_no_detailmenu = False
+
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {'https://docs.python.org/': None}

docs/index.rst

@@ -0,0 +1,19 @@
+vcrpy
+=====
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   vcr
+
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+

docs/vcr.rst

@@ -0,0 +1,6 @@
+:mod:`~vcr.config`
+=================
+
+.. automodule:: vcr.config
+   :members:
+   :special-members: __init__

setup.cfg

@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal=1

setup.py

@@ -1,8 +1,13 @@
 #!/usr/bin/env python
 
 import sys
-from setuptools import setup
+import logging
+
+from setuptools import setup, find_packages
 from setuptools.command.test import test as TestCommand
+import pkg_resources
+
+long_description = open('README.rst', 'r').read()
 
 
 class PyTest(TestCommand):
@@ -18,30 +23,46 @@ class PyTest(TestCommand):
         errno = pytest.main(self.test_args)
         sys.exit(errno)
 
+
+install_requires = ['PyYAML', 'wrapt', 'six>=1.5']
+
+
+extras_require = {
+    ':python_version in "2.4, 2.5, 2.6"':
+        ['contextlib2', 'backport_collections', 'mock'],
+    ':python_version in "2.7, 3.1, 3.2"': ['contextlib2', 'mock'],
+}
+
+
+try:
+    if 'bdist_wheel' not in sys.argv:
+        for key, value in extras_require.items():
+            if key.startswith(':') and pkg_resources.evaluate_marker(key[1:]):
+                install_requires.extend(value)
+except Exception:
+    logging.getLogger(__name__).exception(
+        'Something went wrong calculating platform specific dependencies, so '
+        "you're getting them all!"
+    )
+    for key, value in extras_require.items():
+        if key.startswith(':'):
+            install_requires.extend(value)
+
+
 setup(
     name='vcrpy',
-    version='1.1.0',
+    version='1.7.4',
     description=(
         "Automatically mock your HTTP interactions to simplify and "
         "speed up testing"
     ),
+    long_description=long_description,
     author='Kevin McCarthy',
     author_email='me@kevinmccarthy.org',
     url='https://github.com/kevin1024/vcrpy',
-    packages=[
-        'vcr',
-        'vcr.stubs',
-        'vcr.compat',
-        'vcr.persisters',
-        'vcr.serializers',
-        ],
-    package_dir={
-        'vcr': 'vcr',
-        'vcr.stubs': 'vcr/stubs',
-        'vcr.compat': 'vcr/compat',
-        'vcr.persisters': 'vcr/persisters',
-        },
-    install_requires=['PyYAML', 'mock', 'six', 'contextlib2'],
+    packages=find_packages(exclude=("tests*",)),
+    install_requires=install_requires,
+    extras_require=extras_require,
     license='MIT',
     tests_require=['pytest', 'mock', 'pytest-localserver'],
     cmdclass={'test': PyTest},
@@ -54,5 +75,5 @@ setup(
         'Topic :: Software Development :: Testing',
         'Topic :: Internet :: WWW/HTTP',
         'License :: OSI Approved :: MIT License',
-        ],
+    ]
 )

tests/integration/test_basic.py

@@ -1,5 +1,5 @@
-'''Basic tests about cassettes'''
-# coding=utf-8
+# -*- coding: utf-8 -*-
+'''Basic tests for cassettes'''
 
 # External imports
 import os

tests/integration/test_boto.py

@@ -1,5 +1,6 @@
 import pytest
 boto = pytest.importorskip("boto")
+
 import boto
 import boto.iam
 from boto.s3.connection import S3Connection
@@ -7,6 +8,7 @@ from boto.s3.key import Key
 from ConfigParser import DuplicateSectionError
 import vcr
 
+
 def test_boto_stubs(tmpdir):
     with vcr.use_cassette(str(tmpdir.join('boto-stubs.yml'))):
         # Perform the imports within the patched context so that
@@ -14,19 +16,21 @@ def test_boto_stubs(tmpdir):
         from boto.https_connection import CertValidatingHTTPSConnection
         from vcr.stubs.boto_stubs import VCRCertValidatingHTTPSConnection
         # Prove that the class was patched by the stub and that we can instantiate it.
-        assert CertValidatingHTTPSConnection is VCRCertValidatingHTTPSConnection
+        assert issubclass(CertValidatingHTTPSConnection, VCRCertValidatingHTTPSConnection)
         CertValidatingHTTPSConnection('hostname.does.not.matter')
 
+
 def test_boto_without_vcr():
     s3_conn = S3Connection()
-    s3_bucket = s3_conn.get_bucket('boto-demo-1394171994') # a bucket you can access
+    s3_bucket = s3_conn.get_bucket('boto-demo-1394171994')  # a bucket you can access
     k = Key(s3_bucket)
     k.key = 'test.txt'
     k.set_contents_from_string('hello world i am a string')
 
+
 def test_boto_medium_difficulty(tmpdir):
     s3_conn = S3Connection()
-    s3_bucket = s3_conn.get_bucket('boto-demo-1394171994') # a bucket you can access
+    s3_bucket = s3_conn.get_bucket('boto-demo-1394171994')  # a bucket you can access
     with vcr.use_cassette(str(tmpdir.join('boto-medium.yml'))) as cass:
         k = Key(s3_bucket)
         k.key = 'test.txt'
@@ -41,18 +45,19 @@ def test_boto_medium_difficulty(tmpdir):
 def test_boto_hardcore_mode(tmpdir):
     with vcr.use_cassette(str(tmpdir.join('boto-hardcore.yml'))) as cass:
         s3_conn = S3Connection()
-        s3_bucket = s3_conn.get_bucket('boto-demo-1394171994') # a bucket you can access
+        s3_bucket = s3_conn.get_bucket('boto-demo-1394171994')  # a bucket you can access
         k = Key(s3_bucket)
         k.key = 'test.txt'
         k.set_contents_from_string('hello world i am a string')
 
     with vcr.use_cassette(str(tmpdir.join('boto-hardcore.yml'))) as cass:
         s3_conn = S3Connection()
-        s3_bucket = s3_conn.get_bucket('boto-demo-1394171994') # a bucket you can access
+        s3_bucket = s3_conn.get_bucket('boto-demo-1394171994')  # a bucket you can access
         k = Key(s3_bucket)
         k.key = 'test.txt'
         k.set_contents_from_string('hello world i am a string')
 
+
 def test_boto_iam(tmpdir):
     try:
         boto.config.add_section('Boto')

tests/integration/test_disksaver.py

@@ -1,5 +1,5 @@
+# -*- coding: utf-8 -*-
 '''Basic tests about save behavior'''
-# coding=utf-8
 
 # External imports
 import os

tests/integration/test_filter.py

@@ -1,8 +1,10 @@
 import base64
 import pytest
 from six.moves.urllib.request import urlopen, Request
+from six.moves.urllib.parse import urlencode
 from six.moves.urllib.error import HTTPError
 import vcr
+import json
 
 
 def _request_with_auth(url, username, password):
@@ -15,11 +17,7 @@ def _request_with_auth(url, username, password):
 
 
 def _find_header(cassette, header):
-    for request in cassette.requests:
-        for k in request.headers:
-            if header.lower() == k.lower():
-                return True
-    return False
+    return any(header in request.headers for request in cassette.requests)
 
 
 def test_filter_basic_auth(tmpdir):
@@ -54,15 +52,42 @@ def test_filter_querystring(tmpdir):
         urlopen(url)
         assert 'foo' not in cass.requests[0].url
 
+
+def test_filter_post_data(tmpdir):
+    url = 'http://httpbin.org/post'
+    data = urlencode({'id': 'secret', 'foo': 'bar'}).encode('utf-8')
+    cass_file = str(tmpdir.join('filter_pd.yaml'))
+    with vcr.use_cassette(cass_file, filter_post_data_parameters=['id']):
+        urlopen(url, data)
+    with vcr.use_cassette(cass_file, filter_post_data_parameters=['id']) as cass:
+        assert b'id=secret' not in cass.requests[0].body
+
+
+def test_filter_json_post_data(tmpdir):
+    data = json.dumps({'id': 'secret', 'foo': 'bar'}).encode('utf-8')
+    request = Request('http://httpbin.org/post', data=data)
+    request.add_header('Content-Type', 'application/json')
+
+    cass_file = str(tmpdir.join('filter_jpd.yaml'))
+    with vcr.use_cassette(cass_file, filter_post_data_parameters=['id']):
+        urlopen(request)
+    with vcr.use_cassette(cass_file, filter_post_data_parameters=['id']) as cass:
+        assert b'"id": "secret"' not in cass.requests[0].body
+
+
 def test_filter_callback(tmpdir):
     url = 'http://httpbin.org/get'
     cass_file = str(tmpdir.join('basic_auth_filter.yaml'))
     def before_record_cb(request):
         if request.path != '/get':
             return request
-    my_vcr = vcr.VCR(
-        before_record = before_record_cb,
-    )
+    # Test the legacy keyword.
+    my_vcr = vcr.VCR(before_record=before_record_cb)
+    with my_vcr.use_cassette(cass_file, filter_headers=['authorization']) as cass:
+        urlopen(url)
+        assert len(cass) == 0
+
+    my_vcr = vcr.VCR(before_record_request=before_record_cb)
     with my_vcr.use_cassette(cass_file, filter_headers=['authorization']) as cass:
         urlopen(url)
         assert len(cass) == 0

tests/integration/test_httplib2.py

@@ -1,5 +1,5 @@
+# -*- coding: utf-8 -*-
 '''Integration tests with httplib2'''
-# coding=utf-8
 
 # External imports
 from six.moves.urllib_parse import urlencode
@@ -54,8 +54,19 @@ def test_response_headers(scheme, tmpdir):
 
     with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
         resp, _ = httplib2.Http().request(url)
-        assert headers == resp.items()
+        assert set(headers) == set(resp.items())
 
+def test_effective_url(scheme, tmpdir):
+    '''Ensure that the effective_url is captured'''
+    url = scheme + '://httpbin.org/redirect-to?url=/html'
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
+        resp, _ = httplib2.Http().request(url)
+        effective_url = resp['content-location']
+        assert effective_url == scheme + '://httpbin.org/html'
+
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
+        resp, _ = httplib2.Http().request(url)
+        assert effective_url == resp['content-location']
 
 def test_multiple_requests(scheme, tmpdir):
     '''Ensure that we can cache multiple requests'''

tests/integration/test_record_mode.py

@@ -72,6 +72,31 @@ def test_new_episodes_record_mode(tmpdir):
         assert len(cass.responses) == 2
 
 
+def test_new_episodes_record_mode_two_times(tmpdir):
+    testfile = str(tmpdir.join('recordmode.yml'))
+    url = 'http://httpbin.org/bytes/1024'
+    with vcr.use_cassette(testfile, record_mode="new_episodes"):
+        # cassette file doesn't exist, so create.
+        original_first_response = urlopen(url).read()
+
+    with vcr.use_cassette(testfile, record_mode="new_episodes"):
+        # make the same request again
+        assert urlopen(url).read() == original_first_response
+
+        # in the "new_episodes" record mode, we can add the same request
+        # to the cassette without repercussions
+        original_second_response = urlopen(url).read()
+
+    with vcr.use_cassette(testfile, record_mode="once"):
+        # make the same request again
+        assert urlopen(url).read() == original_first_response
+        assert urlopen(url).read() == original_second_response
+        # now that we are back in once mode, this should raise
+        # an error.
+        with pytest.raises(Exception):
+            urlopen(url).read()
+
+
 def test_all_record_mode(tmpdir):
     testfile = str(tmpdir.join('recordmode.yml'))
 

tests/integration/test_requests.py

@@ -1,23 +1,17 @@
+# -*- coding: utf-8 -*-
 '''Test requests' interaction with vcr'''
 
-# coding=utf-8
-
-import os
 import pytest
 import vcr
-from assertions import (
-    assert_cassette_empty,
-    assert_cassette_has_one_response,
-    assert_is_json
-)
+from assertions import assert_cassette_empty, assert_is_json
+
+
 requests = pytest.importorskip("requests")
 
 
 @pytest.fixture(params=["https", "http"])
 def scheme(request):
-    """
-    Fixture that returns both http and https
-    """
+    '''Fixture that returns both http and https.'''
     return request.param
 
 
@@ -50,6 +44,15 @@ def test_body(tmpdir, scheme):
     with vcr.use_cassette(str(tmpdir.join('body.yaml'))):
         assert content == requests.get(url).content
 
+def test_effective_url(scheme, tmpdir):
+    '''Ensure that the effective_url is captured'''
+    url = scheme + '://httpbin.org/redirect-to?url=/html'
+    with vcr.use_cassette(str(tmpdir.join('url.yaml'))):
+        effective_url = requests.get(url).url
+        assert effective_url == scheme + '://httpbin.org/html'
+
+    with vcr.use_cassette(str(tmpdir.join('url.yaml'))):
+        assert effective_url == requests.get(url).url
 
 def test_auth(tmpdir, scheme):
     '''Ensure that we can handle basic auth'''
@@ -205,3 +208,38 @@ def test_nested_cassettes_with_session_created_before_nesting(scheme, tmpdir):
     # Make sure that the session can now get content normally.
     session.get('http://www.reddit.com')
 
+
+def test_post_file(tmpdir, scheme):
+    '''Ensure that we handle posting a file.'''
+    url = scheme + '://httpbin.org/post'
+    with vcr.use_cassette(str(tmpdir.join('post_file.yaml'))) as cass:
+        # Don't use 2.7+ only style ',' separated with here because we support python 2.6
+        with open('tox.ini') as f:
+            original_response = requests.post(url, f).content
+
+    # This also tests that we do the right thing with matching the body when they are files.
+    with vcr.use_cassette(str(tmpdir.join('post_file.yaml')),
+                          match_on=('method', 'scheme', 'host', 'port', 'path', 'query', 'body')) as cass:
+        with open('tox.ini', 'rb') as f:
+            tox_content = f.read()
+        assert cass.requests[0].body.read() == tox_content
+        with open('tox.ini', 'rb') as f:
+            new_response = requests.post(url, f).content
+        assert original_response == new_response
+
+
+def test_filter_post_params(tmpdir, scheme):
+    '''
+    This tests the issue in https://github.com/kevin1024/vcrpy/issues/158
+
+    Ensure that a post request made through requests can still be filtered.
+    with vcr.use_cassette(cass_file, filter_post_data_parameters=['id']) as cass:
+        assert b'id=secret' not in cass.requests[0].body
+    '''
+    url = scheme + '://httpbin.org/post'
+    cass_loc = str(tmpdir.join('filter_post_params.yaml'))
+    with vcr.use_cassette(cass_loc, filter_post_data_parameters=['key']) as cass:
+        requests.post(url, data={'key': 'value'})
+    with vcr.use_cassette(cass_loc, filter_post_data_parameters=['key']) as cass:
+        assert b'key=value' not in cass.requests[0].body
+

tests/integration/test_tornado.py

@@ -0,0 +1,355 @@
+# -*- coding: utf-8 -*-
+'''Test requests' interaction with vcr'''
+
+import json
+
+import pytest
+import vcr
+from vcr.errors import CannotOverwriteExistingCassetteException
+
+from assertions import assert_cassette_empty, assert_is_json
+
+
+http = pytest.importorskip("tornado.httpclient")
+
+
+@pytest.fixture(params=['simple', 'curl', 'default'])
+def get_client(request):
+    if request.param == 'simple':
+        from tornado import simple_httpclient as simple
+        return (lambda: simple.SimpleAsyncHTTPClient())
+    elif request.param == 'curl':
+        curl = pytest.importorskip("tornado.curl_httpclient")
+        return (lambda: curl.CurlAsyncHTTPClient())
+    else:
+        return (lambda: http.AsyncHTTPClient())
+
+
+def get(client, url, **kwargs):
+    raise_error = kwargs.pop('raise_error', True)
+    return client.fetch(
+        http.HTTPRequest(url, method='GET', **kwargs),
+        raise_error=raise_error,
+    )
+
+
+def post(client, url, data=None, **kwargs):
+    if data:
+        kwargs['body'] = json.dumps(data)
+    return client.fetch(http.HTTPRequest(url, method='POST', **kwargs))
+
+
+@pytest.fixture(params=["https", "http"])
+def scheme(request):
+    '''Fixture that returns both http and https.'''
+    return request.param
+
+
+@pytest.mark.gen_test
+def test_status_code(get_client, scheme, tmpdir):
+    '''Ensure that we can read the status code'''
+    url = scheme + '://httpbin.org/'
+    with vcr.use_cassette(str(tmpdir.join('atts.yaml'))):
+        status_code = (yield get(get_client(), url)).code
+
+    with vcr.use_cassette(str(tmpdir.join('atts.yaml'))) as cass:
+        assert status_code == (yield get(get_client(), url)).code
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_headers(get_client, scheme, tmpdir):
+    '''Ensure that we can read the headers back'''
+    url = scheme + '://httpbin.org/'
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))):
+        headers = (yield get(get_client(), url)).headers
+
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
+        assert headers == (yield get(get_client(), url)).headers
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_body(get_client, tmpdir, scheme):
+    '''Ensure the responses are all identical enough'''
+
+    url = scheme + '://httpbin.org/bytes/1024'
+    with vcr.use_cassette(str(tmpdir.join('body.yaml'))):
+        content = (yield get(get_client(), url)).body
+
+    with vcr.use_cassette(str(tmpdir.join('body.yaml'))) as cass:
+        assert content == (yield get(get_client(), url)).body
+        assert 1 == cass.play_count
+
+@pytest.mark.gen_test
+def test_effective_url(get_client, scheme, tmpdir):
+    '''Ensure that the effective_url is captured'''
+    url = scheme + '://httpbin.org/redirect-to?url=/html'
+    with vcr.use_cassette(str(tmpdir.join('url.yaml'))):
+        effective_url = (yield get(get_client(), url)).effective_url
+        assert effective_url == scheme + '://httpbin.org/html'
+
+    with vcr.use_cassette(str(tmpdir.join('url.yaml'))) as cass:
+        assert effective_url == (yield get(get_client(), url)).effective_url
+        assert 1 == cass.play_count
+
+@pytest.mark.gen_test
+def test_auth(get_client, tmpdir, scheme):
+    '''Ensure that we can handle basic auth'''
+    auth = ('user', 'passwd')
+    url = scheme + '://httpbin.org/basic-auth/user/passwd'
+    with vcr.use_cassette(str(tmpdir.join('auth.yaml'))):
+        one = yield get(
+            get_client(), url, auth_username=auth[0], auth_password=auth[1]
+        )
+
+    with vcr.use_cassette(str(tmpdir.join('auth.yaml'))) as cass:
+        two = yield get(
+            get_client(), url, auth_username=auth[0], auth_password=auth[1]
+        )
+        assert one.body == two.body
+        assert one.code == two.code
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_auth_failed(get_client, tmpdir, scheme):
+    '''Ensure that we can save failed auth statuses'''
+    auth = ('user', 'wrongwrongwrong')
+    url = scheme + '://httpbin.org/basic-auth/user/passwd'
+    with vcr.use_cassette(str(tmpdir.join('auth-failed.yaml'))) as cass:
+        # Ensure that this is empty to begin with
+        assert_cassette_empty(cass)
+        one = yield get(
+            get_client(),
+            url,
+            auth_username=auth[0],
+            auth_password=auth[1],
+            raise_error=False
+        )
+
+    with vcr.use_cassette(str(tmpdir.join('auth-failed.yaml'))) as cass:
+        two = yield get(
+            get_client(),
+            url,
+            auth_username=auth[0],
+            auth_password=auth[1],
+            raise_error=False
+        )
+        assert one.body == two.body
+        assert one.code == two.code == 401
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_post(get_client, tmpdir, scheme):
+    '''Ensure that we can post and cache the results'''
+    data = {'key1': 'value1', 'key2': 'value2'}
+    url = scheme + '://httpbin.org/post'
+    with vcr.use_cassette(str(tmpdir.join('requests.yaml'))):
+        req1 = (yield post(get_client(), url, data)).body
+
+    with vcr.use_cassette(str(tmpdir.join('requests.yaml'))) as cass:
+        req2 = (yield post(get_client(), url, data)).body
+
+    assert req1 == req2
+    assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_redirects(get_client, tmpdir, scheme):
+    '''Ensure that we can handle redirects'''
+    url = scheme + '://httpbin.org/redirect-to?url=bytes/1024'
+    with vcr.use_cassette(str(tmpdir.join('requests.yaml'))):
+        content = (yield get(get_client(), url)).body
+
+    with vcr.use_cassette(str(tmpdir.join('requests.yaml'))) as cass:
+        assert content == (yield get(get_client(), url)).body
+        assert cass.play_count == 1
+
+
+@pytest.mark.gen_test
+def test_cross_scheme(get_client, tmpdir, scheme):
+    '''Ensure that requests between schemes are treated separately'''
+    # First fetch a url under http, and then again under https and then
+    # ensure that we haven't served anything out of cache, and we have two
+    # requests / response pairs in the cassette
+    with vcr.use_cassette(str(tmpdir.join('cross_scheme.yaml'))) as cass:
+        yield get(get_client(), 'https://httpbin.org/')
+        yield get(get_client(), 'http://httpbin.org/')
+        assert cass.play_count == 0
+        assert len(cass) == 2
+
+    # Then repeat the same requests and ensure both were replayed.
+    with vcr.use_cassette(str(tmpdir.join('cross_scheme.yaml'))) as cass:
+        yield get(get_client(), 'https://httpbin.org/')
+        yield get(get_client(), 'http://httpbin.org/')
+        assert cass.play_count == 2
+
+
+@pytest.mark.gen_test
+def test_gzip(get_client, tmpdir, scheme):
+    '''
+    Ensure that httpclient is able to automatically decompress the response
+    body
+    '''
+    url = scheme + '://httpbin.org/gzip'
+
+    with vcr.use_cassette(str(tmpdir.join('gzip.yaml'))):
+        response = yield get(get_client(), url, decompress_response=True)
+        assert_is_json(response.body)
+
+    with vcr.use_cassette(str(tmpdir.join('gzip.yaml'))) as cass:
+        response = yield get(get_client(), url, decompress_response=True)
+        assert_is_json(response.body)
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_https_with_cert_validation_disabled(get_client, tmpdir):
+    cass_path = str(tmpdir.join('cert_validation_disabled.yaml'))
+
+    with vcr.use_cassette(cass_path):
+        yield get(get_client(), 'https://httpbin.org', validate_cert=False)
+
+    with vcr.use_cassette(cass_path) as cass:
+        yield get(get_client(), 'https://httpbin.org', validate_cert=False)
+        assert 1 == cass.play_count
+
+
+@pytest.mark.gen_test
+def test_unsupported_features_raises_in_future(get_client, tmpdir):
+    '''Ensure that the exception for an AsyncHTTPClient feature not being
+    supported is raised inside the future.'''
+
+    def callback(chunk):
+        assert False, "Did not expect to be called."
+
+    with vcr.use_cassette(str(tmpdir.join('invalid.yaml'))):
+        future = get(
+            get_client(), 'http://httpbin.org', streaming_callback=callback
+        )
+
+    with pytest.raises(Exception) as excinfo:
+        yield future
+
+    assert "not yet supported by VCR" in str(excinfo)
+
+
+@pytest.mark.gen_test
+def test_unsupported_features_raise_error_disabled(get_client, tmpdir):
+    '''Ensure that the exception for an AsyncHTTPClient feature not being
+    supported is not raised if raise_error=False.'''
+
+    def callback(chunk):
+        assert False, "Did not expect to be called."
+
+    with vcr.use_cassette(str(tmpdir.join('invalid.yaml'))):
+        response = yield get(
+            get_client(),
+            'http://httpbin.org',
+            streaming_callback=callback,
+            raise_error=False,
+        )
+
+    assert "not yet supported by VCR" in str(response.error)
+
+
+@pytest.mark.gen_test
+def test_cannot_overwrite_cassette_raises_in_future(get_client, tmpdir):
+    '''Ensure that CannotOverwriteExistingCassetteException is raised inside
+    the future.'''
+
+    with vcr.use_cassette(str(tmpdir.join('overwrite.yaml'))):
+        yield get(get_client(), 'http://httpbin.org/get')
+
+    with vcr.use_cassette(str(tmpdir.join('overwrite.yaml'))):
+        future = get(get_client(), 'http://httpbin.org/headers')
+
+    with pytest.raises(CannotOverwriteExistingCassetteException):
+        yield future
+
+
+@pytest.mark.gen_test
+def test_cannot_overwrite_cassette_raise_error_disabled(get_client, tmpdir):
+    '''Ensure that CannotOverwriteExistingCassetteException is not raised if
+    raise_error=False in the fetch() call.'''
+
+    with vcr.use_cassette(str(tmpdir.join('overwrite.yaml'))):
+        yield get(
+            get_client(), 'http://httpbin.org/get', raise_error=False
+        )
+
+    with vcr.use_cassette(str(tmpdir.join('overwrite.yaml'))):
+        response = yield get(
+            get_client(), 'http://httpbin.org/headers', raise_error=False
+        )
+
+    assert isinstance(response.error, CannotOverwriteExistingCassetteException)
+
+
+@pytest.mark.gen_test
+@vcr.use_cassette(path_transformer=vcr.default_vcr.ensure_suffix('.yaml'))
+def test_tornado_with_decorator_use_cassette(get_client):
+    response = yield get_client().fetch(
+        http.HTTPRequest('http://www.google.com/', method='GET')
+    )
+    assert response.body.decode('utf-8') == "not actually google"
+
+
+@pytest.mark.gen_test
+@vcr.use_cassette(path_transformer=vcr.default_vcr.ensure_suffix('.yaml'))
+def test_tornado_exception_can_be_caught(get_client):
+    try:
+        yield get(get_client(), 'http://httpbin.org/status/500')
+    except http.HTTPError as e:
+        assert e.code == 500
+
+    try:
+        yield get(get_client(), 'http://httpbin.org/status/404')
+    except http.HTTPError as e:
+        assert e.code == 404
+
+
+@pytest.mark.gen_test
+def test_existing_references_get_patched(tmpdir):
+    from tornado.httpclient import AsyncHTTPClient
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))):
+        client = AsyncHTTPClient()
+        yield get(client, 'http://httpbin.org/get')
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))) as cass:
+        yield get(client, 'http://httpbin.org/get')
+        assert cass.play_count == 1
+
+
+@pytest.mark.gen_test
+def test_existing_instances_get_patched(get_client, tmpdir):
+    '''Ensure that existing instances of AsyncHTTPClient get patched upon
+    entering VCR context.'''
+
+    client = get_client()
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))):
+        yield get(client, 'http://httpbin.org/get')
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))) as cass:
+        yield get(client, 'http://httpbin.org/get')
+        assert cass.play_count == 1
+
+
+@pytest.mark.gen_test
+def test_request_time_is_set(get_client, tmpdir):
+    '''Ensures that the request_time on HTTPResponses is set.'''
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))):
+        client = get_client()
+        response = yield get(client, 'http://httpbin.org/get')
+        assert response.request_time is not None
+
+    with vcr.use_cassette(str(tmpdir.join('data.yaml'))) as cass:
+        client = get_client()
+        response = yield get(client, 'http://httpbin.org/get')
+        assert response.request_time is not None
+        assert cass.play_count == 1

tests/integration/test_tornado_exception_can_be_caught.yaml

@@ -0,0 +1,62 @@
+interactions:
+- request:
+    body: null
+    headers: {}
+    method: GET
+    uri: http://httpbin.org/status/500
+  response:
+    body: {string: !!python/unicode ''}
+    headers:
+    - !!python/tuple
+      - Content-Length
+      - ['0']
+    - !!python/tuple
+      - Server
+      - [nginx]
+    - !!python/tuple
+      - Connection
+      - [close]
+    - !!python/tuple
+      - Access-Control-Allow-Credentials
+      - ['true']
+    - !!python/tuple
+      - Date
+      - ['Thu, 30 Jul 2015 17:32:39 GMT']
+    - !!python/tuple
+      - Access-Control-Allow-Origin
+      - ['*']
+    - !!python/tuple
+      - Content-Type
+      - [text/html; charset=utf-8]
+    status: {code: 500, message: INTERNAL SERVER ERROR}
+- request:
+    body: null
+    headers: {}
+    method: GET
+    uri: http://httpbin.org/status/404
+  response:
+    body: {string: !!python/unicode ''}
+    headers:
+    - !!python/tuple
+      - Content-Length
+      - ['0']
+    - !!python/tuple
+      - Server
+      - [nginx]
+    - !!python/tuple
+      - Connection
+      - [close]
+    - !!python/tuple
+      - Access-Control-Allow-Credentials
+      - ['true']
+    - !!python/tuple
+      - Date
+      - ['Thu, 30 Jul 2015 17:32:39 GMT']
+    - !!python/tuple
+      - Access-Control-Allow-Origin
+      - ['*']
+    - !!python/tuple
+      - Content-Type
+      - [text/html; charset=utf-8]
+    status: {code: 404, message: NOT FOUND}
+version: 1

tests/integration/test_tornado_with_decorator_use_cassette.yaml

@@ -0,0 +1,53 @@
+interactions:
+- request:
+    body: null
+    headers: {}
+    method: GET
+    uri: http://www.google.com/
+  response:
+    body: {string: !!python/unicode 'not actually google'}
+    headers:
+    - !!python/tuple
+      - Expires
+      - ['-1']
+    - !!python/tuple
+      - Connection
+      - [close]
+    - !!python/tuple
+      - P3p
+      - ['CP="This is not a P3P policy! See http://www.google.com/support/accounts/bin/answer.py?hl=en&answer=151657
+          for more info."']
+    - !!python/tuple
+      - Alternate-Protocol
+      - ['80:quic,p=0']
+    - !!python/tuple
+      - Accept-Ranges
+      - [none]
+    - !!python/tuple
+      - X-Xss-Protection
+      - [1; mode=block]
+    - !!python/tuple
+      - Vary
+      - [Accept-Encoding]
+    - !!python/tuple
+      - Date
+      - ['Thu, 30 Jul 2015 08:41:40 GMT']
+    - !!python/tuple
+      - Cache-Control
+      - ['private, max-age=0']
+    - !!python/tuple
+      - Content-Type
+      - [text/html; charset=ISO-8859-1]
+    - !!python/tuple
+      - Set-Cookie
+      - ['PREF=ID=1111111111111111:FF=0:TM=1438245700:LM=1438245700:V=1:S=GAzVO0ALebSpC_cJ;
+          expires=Sat, 29-Jul-2017 08:41:40 GMT; path=/; domain=.google.com', 'NID=69=Br7oRAwgmKoK__HC6FEnuxglTFDmFxqP6Md63lKhzW1w6WkDbp3U90CDxnUKvDP6wJH8yxY5Lk5ZnFf66Q1B0d4OsYoKgq0vjfBAYXuCIAWtOuGZEOsFXanXs7pt2Mjx;
+          expires=Fri, 29-Jan-2016 08:41:40 GMT; path=/; domain=.google.com; HttpOnly']
+    - !!python/tuple
+      - X-Frame-Options
+      - [SAMEORIGIN]
+    - !!python/tuple
+      - Server
+      - [gws]
+    status: {code: 200, message: OK}
+version: 1

tests/integration/test_urllib2.py

@@ -1,8 +1,5 @@
+# -*- coding: utf-8 -*-
 '''Integration tests with urllib2'''
-# coding=utf-8
-
-# External imports
-import os
 
 import pytest
 from six.moves.urllib.request import urlopen
@@ -11,7 +8,7 @@ from six.moves.urllib_parse import urlencode
 # Internal imports
 import vcr
 
-from assertions import assert_cassette_empty, assert_cassette_has_one_response
+from assertions import assert_cassette_has_one_response
 
 
 @pytest.fixture(params=["https", "http"])
@@ -52,6 +49,15 @@ def test_response_headers(scheme, tmpdir):
         open2 = urlopen(url).info().items()
         assert sorted(open1) == sorted(open2)
 
+def test_effective_url(scheme, tmpdir):
+    '''Ensure that the effective_url is captured'''
+    url = scheme + '://httpbin.org/redirect-to?url=/html'
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
+        effective_url = urlopen(url).geturl()
+        assert effective_url == scheme + '://httpbin.org/html'
+
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))) as cass:
+        assert effective_url == urlopen(url).geturl()
 
 def test_multiple_requests(scheme, tmpdir):
     '''Ensure that we can cache multiple requests'''

tests/integration/test_urllib3.py

@@ -0,0 +1,148 @@
+'''Integration tests with urllib3'''
+
+# coding=utf-8
+
+import pytest
+import vcr
+from assertions import assert_cassette_empty, assert_is_json
+certifi = pytest.importorskip("certifi")
+urllib3 = pytest.importorskip("urllib3")
+
+
+@pytest.fixture(params=["https", "http"])
+def scheme(request):
+    """
+    Fixture that returns both http and https
+    """
+    return request.param
+
+
+@pytest.fixture(scope='module')
+def verify_pool_mgr():
+    return urllib3.PoolManager(
+        cert_reqs='CERT_REQUIRED', # Force certificate check.
+        ca_certs=certifi.where()
+    )
+
+
+@pytest.fixture(scope='module')
+def pool_mgr():
+    return urllib3.PoolManager()
+
+
+def test_status_code(scheme, tmpdir, verify_pool_mgr):
+    '''Ensure that we can read the status code'''
+    url = scheme + '://httpbin.org/'
+    with vcr.use_cassette(str(tmpdir.join('atts.yaml'))):
+        status_code = verify_pool_mgr.request('GET', url).status
+
+    with vcr.use_cassette(str(tmpdir.join('atts.yaml'))):
+        assert status_code == verify_pool_mgr.request('GET', url).status
+
+
+def test_headers(scheme, tmpdir, verify_pool_mgr):
+    '''Ensure that we can read the headers back'''
+    url = scheme + '://httpbin.org/'
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))):
+        headers = verify_pool_mgr.request('GET', url).headers
+
+    with vcr.use_cassette(str(tmpdir.join('headers.yaml'))):
+        assert headers == verify_pool_mgr.request('GET', url).headers
+
+
+def test_body(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure the responses are all identical enough'''
+    url = scheme + '://httpbin.org/bytes/1024'
+    with vcr.use_cassette(str(tmpdir.join('body.yaml'))):
+        content = verify_pool_mgr.request('GET', url).data
+
+    with vcr.use_cassette(str(tmpdir.join('body.yaml'))):
+        assert content == verify_pool_mgr.request('GET', url).data
+
+
+def test_auth(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure that we can handle basic auth'''
+    auth = ('user', 'passwd')
+    headers = urllib3.util.make_headers(basic_auth='{0}:{1}'.format(*auth))
+    url = scheme + '://httpbin.org/basic-auth/user/passwd'
+    with vcr.use_cassette(str(tmpdir.join('auth.yaml'))):
+        one = verify_pool_mgr.request('GET', url, headers=headers)
+
+    with vcr.use_cassette(str(tmpdir.join('auth.yaml'))):
+        two = verify_pool_mgr.request('GET', url, headers=headers)
+        assert one.data == two.data
+        assert one.status == two.status
+
+
+def test_auth_failed(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure that we can save failed auth statuses'''
+    auth = ('user', 'wrongwrongwrong')
+    headers = urllib3.util.make_headers(basic_auth='{0}:{1}'.format(*auth))
+    url = scheme + '://httpbin.org/basic-auth/user/passwd'
+    with vcr.use_cassette(str(tmpdir.join('auth-failed.yaml'))) as cass:
+        # Ensure that this is empty to begin with
+        assert_cassette_empty(cass)
+        one = verify_pool_mgr.request('GET', url, headers=headers)
+        two = verify_pool_mgr.request('GET', url, headers=headers)
+        assert one.data == two.data
+        assert one.status == two.status == 401
+
+
+def test_post(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure that we can post and cache the results'''
+    data = {'key1': 'value1', 'key2': 'value2'}
+    url = scheme + '://httpbin.org/post'
+    with vcr.use_cassette(str(tmpdir.join('verify_pool_mgr.yaml'))):
+        req1 = verify_pool_mgr.request('POST', url, data).data
+
+    with vcr.use_cassette(str(tmpdir.join('verify_pool_mgr.yaml'))):
+        req2 = verify_pool_mgr.request('POST', url, data).data
+
+    assert req1 == req2
+
+
+def test_redirects(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure that we can handle redirects'''
+    url = scheme + '://httpbin.org/redirect-to?url=bytes/1024'
+    with vcr.use_cassette(str(tmpdir.join('verify_pool_mgr.yaml'))):
+        content = verify_pool_mgr.request('GET', url).data
+
+    with vcr.use_cassette(str(tmpdir.join('verify_pool_mgr.yaml'))) as cass:
+        assert content == verify_pool_mgr.request('GET', url).data
+        # Ensure that we've now cached *two* responses. One for the redirect
+        # and one for the final fetch
+        assert len(cass) == 2
+        assert cass.play_count == 2
+
+
+def test_cross_scheme(tmpdir, scheme, verify_pool_mgr):
+    '''Ensure that requests between schemes are treated separately'''
+    # First fetch a url under http, and then again under https and then
+    # ensure that we haven't served anything out of cache, and we have two
+    # requests / response pairs in the cassette
+    with vcr.use_cassette(str(tmpdir.join('cross_scheme.yaml'))) as cass:
+        verify_pool_mgr.request('GET', 'https://httpbin.org/')
+        verify_pool_mgr.request('GET', 'http://httpbin.org/')
+        assert cass.play_count == 0
+        assert len(cass) == 2
+
+
+def test_gzip(tmpdir, scheme, verify_pool_mgr):
+    '''
+    Ensure that requests (actually urllib3) is able to automatically decompress
+    the response body
+    '''
+    url = scheme + '://httpbin.org/gzip'
+    response = verify_pool_mgr.request('GET', url)
+
+    with vcr.use_cassette(str(tmpdir.join('gzip.yaml'))):
+        response = verify_pool_mgr.request('GET', url)
+        assert_is_json(response.data)
+
+    with vcr.use_cassette(str(tmpdir.join('gzip.yaml'))):
+        assert_is_json(response.data)
+
+
+def test_https_with_cert_validation_disabled(tmpdir, pool_mgr):
+    with vcr.use_cassette(str(tmpdir.join('cert_validation_disabled.yaml'))):
+        pool_mgr.request('GET', 'https://httpbin.org')

tests/integration/test_wild.py

@@ -1,4 +1,6 @@
 import pytest
+from six.moves import xmlrpc_client
+
 requests = pytest.importorskip("requests")
 
 import vcr
@@ -64,3 +66,24 @@ def test_cookies(tmpdir):
         r1 = s.get("http://httpbin.org/cookies/set?k1=v1&k2=v2")
         r2 = s.get("http://httpbin.org/cookies")
         assert len(r2.json()['cookies']) == 2
+
+
+def test_amazon_doctype(tmpdir):
+    # amazon gzips its homepage.  For some reason, in requests 2.7, it's not
+    # getting gunzipped.
+    with vcr.use_cassette(str(tmpdir.join('amz.yml'))):
+        r = requests.get('http://www.amazon.com')
+    assert 'html' in r.text
+
+
+def test_xmlrpclib(tmpdir):
+    with vcr.use_cassette(str(tmpdir.join('xmlrpcvideo.yaml'))):
+        roundup_server = xmlrpc_client.ServerProxy('http://bugs.python.org/xmlrpc', allow_none=True)
+        original_schema = roundup_server.schema()
+
+    with vcr.use_cassette(str(tmpdir.join('xmlrpcvideo.yaml'))) as cassette:
+        roundup_server = xmlrpc_client.ServerProxy('http://bugs.python.org/xmlrpc', allow_none=True)
+        second_schema = roundup_server.schema()
+
+    assert original_schema == second_schema
+

tests/unit/test_cassettes.py

@@ -1,14 +1,17 @@
 import copy
+import inspect
+import os
 
 from six.moves import http_client as httplib
-import contextlib2
-import mock
 import pytest
 import yaml
 
+from vcr.compat import mock, contextlib
 from vcr.cassette import Cassette
-from vcr.patch import force_reset
 from vcr.errors import UnhandledHTTPRequestError
+from vcr.patch import force_reset
+from vcr.matchers import path, method, query, host
+from vcr.stubs import VCRHTTPSConnection
 
 
 def test_cassette_load(tmpdir):
@@ -17,7 +20,7 @@ def test_cassette_load(tmpdir):
         {'request': {'body': '', 'uri': 'foo', 'method': 'GET', 'headers': {}},
          'response': 'bar'}
     ]}))
-    a_cassette = Cassette.load(str(a_file))
+    a_cassette = Cassette.load(path=str(a_file))
     assert len(a_cassette) == 1
 
 
@@ -85,33 +88,35 @@ def make_get_request():
 @mock.patch('vcr.cassette.Cassette.can_play_response_for', return_value=True)
 @mock.patch('vcr.stubs.VCRHTTPResponse')
 def test_function_decorated_with_use_cassette_can_be_invoked_multiple_times(*args):
-    decorated_function = Cassette.use('test')(make_get_request)
-    for i in range(2):
+    decorated_function = Cassette.use(path='test')(make_get_request)
+    for i in range(4):
          decorated_function()
 
 
 def test_arg_getter_functionality():
-    arg_getter = mock.Mock(return_value=('test', {}))
+    arg_getter = mock.Mock(return_value={'path': 'test'})
     context_decorator = Cassette.use_arg_getter(arg_getter)
 
     with context_decorator as cassette:
         assert cassette._path == 'test'
 
-    arg_getter.return_value = ('other', {})
+    arg_getter.return_value = {'path': 'other'}
 
     with context_decorator as cassette:
         assert cassette._path == 'other'
 
-    arg_getter.return_value = ('', {'filter_headers': ('header_name',)})
+    arg_getter.return_value = {'path': 'other', 'filter_headers': ('header_name',)}
 
     @context_decorator
     def function():
         pass
 
-    with mock.patch.object(Cassette, 'load') as cassette_load:
+    with mock.patch.object(
+        Cassette, 'load',
+        return_value=mock.MagicMock(inject=False)
+    ) as cassette_load:
         function()
-        cassette_load.assert_called_once_with(arg_getter.return_value[0],
-                                              **arg_getter.return_value[1])
+        cassette_load.assert_called_once_with(**arg_getter.return_value)
 
 
 def test_cassette_not_all_played():
@@ -153,14 +158,14 @@ def test_nesting_cassette_context_managers(*args):
     second_response = copy.deepcopy(first_response)
     second_response['body']['string'] = b'second_response'
 
-    with contextlib2.ExitStack() as exit_stack:
-        first_cassette = exit_stack.enter_context(Cassette.use('test'))
+    with contextlib.ExitStack() as exit_stack:
+        first_cassette = exit_stack.enter_context(Cassette.use(path='test'))
         exit_stack.enter_context(mock.patch.object(first_cassette, 'play_response',
                                                     return_value=first_response))
         assert_get_response_body_is('first_response')
 
         # Make sure a second cassette can supercede the first
-        with Cassette.use('test') as second_cassette:
+        with Cassette.use(path='test') as second_cassette:
             with mock.patch.object(second_cassette, 'play_response', return_value=second_response):
                 assert_get_response_body_is('second_response')
 
@@ -170,14 +175,138 @@ def test_nesting_cassette_context_managers(*args):
 
 def test_nesting_context_managers_by_checking_references_of_http_connection():
     original = httplib.HTTPConnection
-    with Cassette.use('test'):
+    with Cassette.use(path='test'):
         first_cassette_HTTPConnection = httplib.HTTPConnection
-        with Cassette.use('test'):
+        with Cassette.use(path='test'):
             second_cassette_HTTPConnection = httplib.HTTPConnection
             assert second_cassette_HTTPConnection is not first_cassette_HTTPConnection
-            with Cassette.use('test'):
+            with Cassette.use(path='test'):
                 assert httplib.HTTPConnection is not second_cassette_HTTPConnection
                 with force_reset():
                     assert httplib.HTTPConnection is original
             assert httplib.HTTPConnection is second_cassette_HTTPConnection
         assert httplib.HTTPConnection is first_cassette_HTTPConnection
+
+
+def test_custom_patchers():
+    class Test(object):
+        attribute = None
+    with Cassette.use(path='custom_patches',
+                      custom_patches=((Test, 'attribute', VCRHTTPSConnection),)):
+        assert issubclass(Test.attribute, VCRHTTPSConnection)
+        assert VCRHTTPSConnection is not Test.attribute
+        old_attribute = Test.attribute
+
+        with Cassette.use(path='custom_patches',
+                          custom_patches=((Test, 'attribute', VCRHTTPSConnection),)):
+            assert issubclass(Test.attribute, VCRHTTPSConnection)
+            assert VCRHTTPSConnection is not Test.attribute
+            assert  Test.attribute is not old_attribute
+
+        assert issubclass(Test.attribute, VCRHTTPSConnection)
+        assert VCRHTTPSConnection is not Test.attribute
+        assert  Test.attribute is old_attribute
+
+
+def test_decorated_functions_are_reentrant():
+    info = {"second": False}
+    original_conn = httplib.HTTPConnection
+    @Cassette.use(path='whatever', inject=True)
+    def test_function(cassette):
+        if info['second']:
+            assert httplib.HTTPConnection is not info['first_conn']
+        else:
+            info['first_conn'] = httplib.HTTPConnection
+            info['second'] = True
+            test_function()
+            assert httplib.HTTPConnection is info['first_conn']
+    test_function()
+    assert httplib.HTTPConnection is original_conn
+
+
+def test_cassette_use_called_without_path_uses_function_to_generate_path():
+    @Cassette.use(inject=True)
+    def function_name(cassette):
+        assert cassette._path == 'function_name'
+    function_name()
+
+
+def test_path_transformer_with_function_path():
+    path_transformer = lambda path: os.path.join('a', path)
+    @Cassette.use(inject=True, path_transformer=path_transformer)
+    def function_name(cassette):
+        assert cassette._path == os.path.join('a', 'function_name')
+    function_name()
+
+
+def test_path_transformer_with_context_manager():
+    with Cassette.use(
+        path='b', path_transformer=lambda *args: 'a'
+    ) as cassette:
+        assert cassette._path == 'a'
+
+
+def test_path_transformer_None():
+    with Cassette.use(
+        path='a', path_transformer=None,
+    ) as cassette:
+        assert cassette._path == 'a'
+
+
+def test_func_path_generator():
+    def generator(function):
+        return os.path.join(os.path.dirname(inspect.getfile(function)),
+                                            function.__name__)
+    @Cassette.use(inject=True, func_path_generator=generator)
+    def function_name(cassette):
+        assert cassette._path == os.path.join(os.path.dirname(__file__), 'function_name')
+    function_name()
+
+
+def test_use_as_decorator_on_coroutine():
+    original_http_connetion = httplib.HTTPConnection
+    @Cassette.use(inject=True)
+    def test_function(cassette):
+        assert httplib.HTTPConnection.cassette is cassette
+        assert httplib.HTTPConnection is not original_http_connetion
+        value = yield 1
+        assert value == 1
+        assert httplib.HTTPConnection.cassette is cassette
+        assert httplib.HTTPConnection is not original_http_connetion
+        value = yield 2
+        assert value == 2
+    coroutine = test_function()
+    value = next(coroutine)
+    while True:
+        try:
+            value = coroutine.send(value)
+        except StopIteration:
+            break
+
+
+def test_use_as_decorator_on_generator():
+    original_http_connetion = httplib.HTTPConnection
+    @Cassette.use(inject=True)
+    def test_function(cassette):
+        assert httplib.HTTPConnection.cassette is cassette
+        assert httplib.HTTPConnection is not original_http_connetion
+        yield 1
+        assert httplib.HTTPConnection.cassette is cassette
+        assert httplib.HTTPConnection is not original_http_connetion
+        yield 2
+    assert list(test_function()) == [1, 2]
+
+
+def test_similar_requests(tmpdir):
+    # WIP needs to be finished
+    @Cassette.use(inject=True, match_on=(path, query, host, method))
+    def test_function(cassette):
+        conn = httplib.HTTPConnection("www.python.org")
+        conn.request("GET", "/index.html?test=1")
+
+        conn = httplib.HTTPConnection("www.python.org")
+        conn.request("GET", "/index.html?test=0")
+
+        conn = httplib.HTTPConnection("www.cool.org")
+        conn.request("GET", "/index.html?test=0")
+        cassette.similar_requests()

tests/unit/test_filters.py

@@ -1,37 +1,96 @@
-from vcr.filters import _remove_headers, _remove_query_parameters
+from vcr.filters import (
+    remove_headers,
+    remove_query_parameters,
+    remove_post_data_parameters
+)
 from vcr.request import Request
+import json
 
 
 def test_remove_headers():
     headers = {'hello': ['goodbye'], 'secret': ['header']}
     request = Request('GET', 'http://google.com', '', headers)
-    _remove_headers(request, ['secret'])
+    remove_headers(request, ['secret'])
     assert request.headers == {'hello': 'goodbye'}
 
 
 def test_remove_headers_empty():
     headers = {'hello': 'goodbye', 'secret': 'header'}
     request = Request('GET', 'http://google.com', '', headers)
-    _remove_headers(request, [])
+    remove_headers(request, [])
     assert request.headers == headers
 
 
 def test_remove_query_parameters():
     uri = 'http://g.com/?q=cowboys&w=1'
     request = Request('GET', uri, '', {})
-    _remove_query_parameters(request, ['w'])
+    remove_query_parameters(request, ['w'])
     assert request.uri == 'http://g.com/?q=cowboys'
 
 
 def test_remove_all_query_parameters():
     uri = 'http://g.com/?q=cowboys&w=1'
     request = Request('GET', uri, '', {})
-    _remove_query_parameters(request, ['w', 'q'])
+    remove_query_parameters(request, ['w', 'q'])
     assert request.uri == 'http://g.com/'
 
 
 def test_remove_nonexistent_query_parameters():
     uri = 'http://g.com/'
     request = Request('GET', uri, '', {})
-    _remove_query_parameters(request, ['w', 'q'])
+    remove_query_parameters(request, ['w', 'q'])
     assert request.uri == 'http://g.com/'
+
+
+def test_remove_post_data_parameters():
+    body = b'id=secret&foo=bar'
+    request = Request('POST', 'http://google.com', body, {})
+    remove_post_data_parameters(request, ['id'])
+    assert request.body == b'foo=bar'
+
+
+def test_preserve_multiple_post_data_parameters():
+    body = b'id=secret&foo=bar&foo=baz'
+    request = Request('POST', 'http://google.com', body, {})
+    remove_post_data_parameters(request, ['id'])
+    assert request.body == b'foo=bar&foo=baz'
+
+
+def test_remove_all_post_data_parameters():
+    body = b'id=secret&foo=bar'
+    request = Request('POST', 'http://google.com', body, {})
+    remove_post_data_parameters(request, ['id', 'foo'])
+    assert request.body == b''
+
+
+def test_remove_nonexistent_post_data_parameters():
+    body = b''
+    request = Request('POST', 'http://google.com', body, {})
+    remove_post_data_parameters(request, ['id'])
+    assert request.body == b''
+
+
+def test_remove_json_post_data_parameters():
+    body = b'{"id": "secret", "foo": "bar", "baz": "qux"}'
+    request = Request('POST', 'http://google.com', body, {})
+    request.headers['Content-Type'] = 'application/json'
+    remove_post_data_parameters(request, ['id'])
+    request_body_json = json.loads(request.body.decode('utf-8'))
+    expected_json = json.loads(b'{"foo": "bar", "baz": "qux"}'.decode('utf-8'))
+    assert request_body_json == expected_json
+
+
+def test_remove_all_json_post_data_parameters():
+    body = b'{"id": "secret", "foo": "bar"}'
+    request = Request('POST', 'http://google.com', body, {})
+    request.headers['Content-Type'] = 'application/json'
+    remove_post_data_parameters(request, ['id', 'foo'])
+    assert request.body == b'{}'
+
+
+def test_remove_nonexistent_json_post_data_parameters():
+    body = b'{}'
+    request = Request('POST', 'http://google.com', body, {})
+    request.headers['Content-Type'] = 'application/json'
+    remove_post_data_parameters(request, ['id'])
+    assert request.body == b'{}'

tests/unit/test_matchers.py

@@ -1,5 +1,7 @@
 import itertools
 
+import pytest
+
 from vcr import matchers
 from vcr import request
 
@@ -35,6 +37,107 @@ def test_uri_matcher():
             assert matched
 
 
+req1_body = (b"<?xml version='1.0'?><methodCall><methodName>test</methodName>"
+             b"<params><param><value><array><data><value><struct>"
+             b"<member><name>a</name><value><string>1</string></value></member>"
+             b"<member><name>b</name><value><string>2</string></value></member>"
+             b"</struct></value></data></array></value></param></params></methodCall>")
+req2_body = (b"<?xml version='1.0'?><methodCall><methodName>test</methodName>"
+             b"<params><param><value><array><data><value><struct>"
+             b"<member><name>b</name><value><string>2</string></value></member>"
+             b"<member><name>a</name><value><string>1</string></value></member>"
+             b"</struct></value></data></array></value></param></params></methodCall>")
+
+
+@pytest.mark.parametrize("r1, r2", [
+    (
+        request.Request('POST', 'http://host.com/', '123', {}),
+        request.Request('POST', 'http://another-host.com/',
+                        '123', {'Some-Header': 'value'})
+    ),
+    (
+        request.Request('POST', 'http://host.com/', 'a=1&b=2',
+                        {'Content-Type': 'application/x-www-form-urlencoded'}),
+        request.Request('POST', 'http://host.com/', 'b=2&a=1',
+                        {'Content-Type': 'application/x-www-form-urlencoded'})
+    ),
+    (
+        request.Request('POST', 'http://host.com/', '123', {}),
+        request.Request('POST', 'http://another-host.com/', '123', {'Some-Header': 'value'})
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/', 'a=1&b=2',
+            {'Content-Type': 'application/x-www-form-urlencoded'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/', 'b=2&a=1',
+            {'Content-Type': 'application/x-www-form-urlencoded'}
+        )
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/', '{"a": 1, "b": 2}',
+            {'Content-Type': 'application/json'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/', '{"b": 2, "a": 1}',
+            {'content-type': 'application/json'}
+        )
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/', req1_body,
+            {'User-Agent': 'xmlrpclib', 'Content-Type': 'text/xml'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/', req2_body,
+            {'user-agent': 'somexmlrpc', 'content-type': 'text/xml'}
+        )
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/',
+            '{"a": 1, "b": 2}', {'Content-Type': 'application/json'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/',
+            '{"b": 2, "a": 1}', {'content-type': 'application/json'}
+        )
+    )
+])
+def test_body_matcher_does_match(r1, r2):
+    assert matchers.body(r1, r2)
+
+
+@pytest.mark.parametrize("r1, r2", [
+    (
+        request.Request('POST', 'http://host.com/', '{"a": 1, "b": 2}', {}),
+        request.Request('POST', 'http://host.com/', '{"b": 2, "a": 1}', {}),
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/',
+            '{"a": 1, "b": 3}', {'Content-Type': 'application/json'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/',
+            '{"b": 2, "a": 1}', {'content-type': 'application/json'}
+        )
+    ),
+    (
+        request.Request(
+            'POST', 'http://host.com/', req1_body, {'Content-Type': 'text/xml'}
+        ),
+        request.Request(
+            'POST', 'http://host.com/', req2_body, {'content-type': 'text/xml'}
+        )
+    )
+])
+def test_body_match_does_not_match(r1, r2):
+    assert not matchers.body(r1, r2)
+
+
 def test_query_matcher():
     req1 = request.Request('GET', 'http://host.com/?a=b&c=d', '', {})
     req2 = request.Request('GET', 'http://host.com/?c=d&a=b', '', {})

tests/unit/test_request.py

@@ -1,6 +1,6 @@
 import pytest
 
-from vcr.request import Request
+from vcr.request import Request, HeadersDict
 
 
 def test_str():
@@ -12,17 +12,22 @@ def test_headers():
     headers = {'X-Header1': ['h1'], 'X-Header2': 'h2'}
     req = Request('GET', 'http://go.com/', '', headers)
     assert req.headers == {'X-Header1': 'h1', 'X-Header2': 'h2'}
-
-    req.add_header('X-Header1', 'h11')
+    req.headers['X-Header1'] = 'h11'
     assert req.headers == {'X-Header1': 'h11', 'X-Header2': 'h2'}
 
 
+def test_add_header_deprecated():
+    req = Request('GET', 'http://go.com/', '', {})
+    pytest.deprecated_call(req.add_header, 'foo', 'bar')
+    assert req.headers == {'foo': 'bar'}
+
+
 @pytest.mark.parametrize("uri, expected_port", [
     ('http://go.com/', 80),
     ('http://go.com:80/', 80),
     ('http://go.com:3000/', 3000),
-    ('https://go.com/', 433),
-    ('https://go.com:433/', 433),
+    ('https://go.com/', 443),
+    ('https://go.com:443/', 443),
     ('https://go.com:3000/', 3000),
     ])
 def test_port(uri, expected_port):
@@ -36,3 +41,30 @@ def test_uri():
 
     req = Request('GET', 'http://go.com:80/', '', {})
     assert req.uri == 'http://go.com:80/'
+
+
+def test_HeadersDict():
+
+    # Simple test of CaseInsensitiveDict
+    h = HeadersDict()
+    assert h == {}
+    h['Content-Type'] = 'application/json'
+    assert h == {'Content-Type': 'application/json'}
+    assert h['content-type'] == 'application/json'
+    assert h['CONTENT-TYPE'] == 'application/json'
+
+    # Test feature of HeadersDict: devolve list to first element
+    h = HeadersDict()
+    assert h == {}
+    h['x'] = ['foo', 'bar']
+    assert h == {'x': 'foo'}
+
+    # Test feature of HeadersDict: preserve original key case
+    h = HeadersDict()
+    assert h == {}
+    h['Content-Type'] = 'application/json'
+    assert h == {'Content-Type': 'application/json'}
+    h['content-type'] = 'text/plain'
+    assert h == {'Content-Type': 'text/plain'}
+    h['CONtent-tyPE'] = 'whoa'
+    assert h == {'Content-Type': 'whoa'}

tests/unit/test_response.py

@@ -0,0 +1,68 @@
+# coding: UTF-8
+from vcr.stubs import VCRHTTPResponse
+
+
+def test_response_should_have_headers_field():
+    recorded_response = {
+        "status": {
+            "message": "OK",
+            "code": 200
+        },
+        "headers": {
+            "content-length": ["0"],
+            "server": ["gunicorn/18.0"],
+            "connection": ["Close"],
+            "access-control-allow-credentials": ["true"],
+            "date": ["Fri, 24 Oct 2014 18:35:37 GMT"],
+            "access-control-allow-origin": ["*"],
+            "content-type": ["text/html; charset=utf-8"],
+        },
+        "body": {
+            "string": b""
+        }
+    }
+    response = VCRHTTPResponse(recorded_response)
+
+    assert response.headers is not None
+
+
+def test_response_headers_should_be_equal_to_msg():
+    recorded_response = {
+        "status": {
+            "message": b"OK",
+            "code": 200
+        },
+        "headers": {
+            "content-length": ["0"],
+            "server": ["gunicorn/18.0"],
+            "connection": ["Close"],
+            "content-type": ["text/html; charset=utf-8"],
+        },
+        "body": {
+            "string": b""
+        }
+    }
+    response = VCRHTTPResponse(recorded_response)
+
+    assert response.headers == response.msg
+
+
+def test_response_headers_should_have_correct_values():
+    recorded_response = {
+        "status": {
+            "message": "OK",
+            "code": 200
+        },
+        "headers": {
+            "content-length": ["10806"],
+            "date": ["Fri, 24 Oct 2014 18:35:37 GMT"],
+            "content-type": ["text/html; charset=utf-8"],
+        },
+        "body": {
+            "string": b""
+        }
+    }
+    response = VCRHTTPResponse(recorded_response)
+
+    assert response.headers.get('content-length') == "10806"
+    assert response.headers.get('date') == "Fri, 24 Oct 2014 18:35:37 GMT"

tests/unit/test_serialize.py

@@ -1,21 +1,85 @@
+# -*- encoding: utf-8 -*-
 import pytest
+
+from vcr.compat import mock
 from vcr.serialize import deserialize
 from vcr.serializers import yamlserializer, jsonserializer
 
+
 def test_deserialize_old_yaml_cassette():
     with open('tests/fixtures/migration/old_cassette.yaml', 'r') as f:
         with pytest.raises(ValueError):
             deserialize(f.read(), yamlserializer)
 
+
 def test_deserialize_old_json_cassette():
     with open('tests/fixtures/migration/old_cassette.json', 'r') as f:
         with pytest.raises(ValueError):
             deserialize(f.read(), jsonserializer)
 
+
 def test_deserialize_new_yaml_cassette():
     with open('tests/fixtures/migration/new_cassette.yaml', 'r') as f:
         deserialize(f.read(), yamlserializer)
 
+
 def test_deserialize_new_json_cassette():
     with open('tests/fixtures/migration/new_cassette.json', 'r') as f:
         deserialize(f.read(), jsonserializer)
+
+
+REQBODY_TEMPLATE = u'''\
+interactions:
+- request:
+    body: {req_body}
+    headers:
+      Content-Type: [application/x-www-form-urlencoded]
+      Host: [httpbin.org]
+    method: POST
+    uri: http://httpbin.org/post
+  response:
+    body: {{string: ""}}
+    headers:
+      content-length: ['0']
+      content-type: [application/json]
+    status: {{code: 200, message: OK}}
+'''
+
+
+# A cassette generated under Python 2 stores the request body as a string,
+# but the same cassette generated under Python 3 stores it as "!!binary".
+# Make sure we accept both forms, regardless of whether we're running under
+# Python 2 or 3.
+@pytest.mark.parametrize("req_body, expect", [
+    # Cassette written under Python 2 (pure ASCII body)
+    ('x=5&y=2', b'x=5&y=2'),
+    # Cassette written under Python 3 (pure ASCII body)
+    ('!!binary |\n      eD01Jnk9Mg==', b'x=5&y=2'),
+
+    # Request body has non-ASCII chars (x=föo&y=2), encoded in UTF-8.
+    ('!!python/str "x=f\\xF6o&y=2"', b'x=f\xc3\xb6o&y=2'),
+    ('!!binary |\n      eD1mw7ZvJnk9Mg==', b'x=f\xc3\xb6o&y=2'),
+
+    # Same request body, this time encoded in UTF-16. In this case, we
+    # write the same YAML file under both Python 2 and 3, so there's only
+    # one test case here.
+    ('!!binary |\n      //54AD0AZgD2AG8AJgB5AD0AMgA=',
+     b'\xff\xfex\x00=\x00f\x00\xf6\x00o\x00&\x00y\x00=\x002\x00'),
+
+    # Same again, this time encoded in ISO-8859-1.
+    ('!!binary |\n      eD1m9m8meT0y', b'x=f\xf6o&y=2'),
+])
+def test_deserialize_py2py3_yaml_cassette(tmpdir, req_body, expect):
+    cfile = tmpdir.join('test_cassette.yaml')
+    cfile.write(REQBODY_TEMPLATE.format(req_body=req_body))
+    with open(str(cfile)) as f:
+        (requests, responses) = deserialize(f.read(), yamlserializer)
+    assert requests[0].body == expect
+
+
+@mock.patch.object(jsonserializer.json, 'dumps',
+                   side_effect=UnicodeDecodeError('utf-8', b'unicode error in serialization',
+                                                  0, 10, 'blew up'))
+def test_serialize_constructs_UnicodeDecodeError(mock_dumps):
+    with pytest.raises(UnicodeDecodeError):
+        jsonserializer.serialize({})

tests/unit/test_stubs.py

@@ -0,0 +1,7 @@
+from vcr.stubs import VCRHTTPSConnection
+
+class TestVCRConnection(object):
+    def test_setting_of_attributes_get_propogated_to_real_connection(self):
+        vcr_connection = VCRHTTPSConnection('www.examplehost.com')
+        vcr_connection.ssl_version = 'example_ssl_version'
+        assert vcr_connection.real_connection.ssl_version == 'example_ssl_version'

tests/unit/test_vcr.py

@@ -1,28 +1,353 @@
-import mock
+import os
 
-from vcr import VCR
+import pytest
+from six.moves import http_client as httplib
+
+from vcr import VCR, use_cassette
+from vcr.compat import mock
+from vcr.request import Request
+from vcr.stubs import VCRHTTPSConnection
+from vcr.patch import _HTTPConnection, force_reset
 
 
 def test_vcr_use_cassette():
-    filter_headers = mock.Mock()
-    test_vcr = VCR(filter_headers=filter_headers)
-    with mock.patch('vcr.cassette.Cassette.load') as mock_cassette_load:
+    record_mode = mock.Mock()
+    test_vcr = VCR(record_mode=record_mode)
+    with mock.patch(
+        'vcr.cassette.Cassette.load',
+        return_value=mock.MagicMock(inject=False)
+    ) as mock_cassette_load:
+
         @test_vcr.use_cassette('test')
         def function():
             pass
+
         assert mock_cassette_load.call_count == 0
         function()
-        assert mock_cassette_load.call_args[1]['filter_headers'] is filter_headers
+        assert mock_cassette_load.call_args[1]['record_mode'] is record_mode
 
         # Make sure that calls to function now use cassettes with the
         # new filter_header_settings
-        test_vcr.filter_headers = ('a',)
+        test_vcr.record_mode = mock.Mock()
         function()
-        assert mock_cassette_load.call_args[1]['filter_headers'] == test_vcr.filter_headers
+        assert mock_cassette_load.call_args[1]['record_mode'] == test_vcr.record_mode
 
         # Ensure that explicitly provided arguments still supercede
         # those on the vcr.
-        new_filter_headers = mock.Mock()
+        new_record_mode = mock.Mock()
 
-    with test_vcr.use_cassette('test', filter_headers=new_filter_headers) as cassette:
-        assert cassette._filter_headers == new_filter_headers
+    with test_vcr.use_cassette('test', record_mode=new_record_mode) as cassette:
+        assert cassette.record_mode == new_record_mode
+
+
+def test_vcr_before_record_request_params():
+    base_path = 'http://httpbin.org/'
+
+    def before_record_cb(request):
+        if request.path != '/get':
+            return request
+
+    test_vcr = VCR(filter_headers=('cookie',), before_record_request=before_record_cb,
+                   ignore_hosts=('www.test.com',), ignore_localhost=True,
+                   filter_query_parameters=('foo',))
+
+    with test_vcr.use_cassette('test') as cassette:
+        assert cassette.filter_request(Request('GET', base_path + 'get', '', {})) is None
+        assert cassette.filter_request(Request('GET', base_path + 'get2', '', {})) is not None
+
+        assert cassette.filter_request(Request('GET', base_path + '?foo=bar', '', {})).query == []
+        assert cassette.filter_request(
+            Request('GET', base_path + '?foo=bar', '',
+                    {'cookie': 'test', 'other': 'fun'})).headers == {'other': 'fun'}
+        assert cassette.filter_request(
+            Request(
+                'GET', base_path + '?foo=bar', '',
+                {'cookie': 'test', 'other': 'fun'}
+            )
+        ).headers == {'other': 'fun'}
+
+        assert cassette.filter_request(Request('GET', 'http://www.test.com' + '?foo=bar', '',
+                                               {'cookie': 'test', 'other': 'fun'})) is None
+
+    with test_vcr.use_cassette('test', before_record_request=None) as cassette:
+        # Test that before_record can be overwritten with
+        assert cassette.filter_request(Request('GET', base_path + 'get', '', {})) is not None
+
+
+def test_vcr_before_record_response_iterable():
+    # Regression test for #191
+
+    request = Request('GET', '/', '', {})
+    response = object()  # just can't be None
+
+    # Prevent actually saving the cassette
+    with mock.patch('vcr.cassette.save_cassette'):
+
+        # Baseline: non-iterable before_record_response should work
+        mock_filter = mock.Mock()
+        vcr = VCR(before_record_response=mock_filter)
+        with vcr.use_cassette('test') as cassette:
+            assert mock_filter.call_count == 0
+            cassette.append(request, response)
+            assert mock_filter.call_count == 1
+
+        # Regression test: iterable before_record_response should work too
+        mock_filter = mock.Mock()
+        vcr = VCR(before_record_response=(mock_filter,))
+        with vcr.use_cassette('test') as cassette:
+            assert mock_filter.call_count == 0
+            cassette.append(request, response)
+            assert mock_filter.call_count == 1
+
+
+def test_before_record_response_as_filter():
+    request = Request('GET', '/', '', {})
+    response = object()  # just can't be None
+
+    # Prevent actually saving the cassette
+    with mock.patch('vcr.cassette.save_cassette'):
+
+        filter_all = mock.Mock(return_value=None)
+        vcr = VCR(before_record_response=filter_all)
+        with vcr.use_cassette('test') as cassette:
+            cassette.append(request, response)
+            assert cassette.data == []e
+            assert not cassette.dirty
+
+
+def test_vcr_path_transformer():
+    # Regression test for #199
+
+    # Prevent actually saving the cassette
+    with mock.patch('vcr.cassette.save_cassette'):
+
+        # Baseline: path should be unchanged
+        vcr = VCR()
+        with vcr.use_cassette('test') as cassette:
+            assert cassette._path == 'test'
+
+        # Regression test: path_transformer=None should do the same.
+        vcr = VCR(path_transformer=None)
+        with vcr.use_cassette('test') as cassette:
+            assert cassette._path == 'test'
+
+        # and it should still work with cassette_library_dir
+        vcr = VCR(cassette_library_dir='/foo')
+        with vcr.use_cassette('test') as cassette:
+            assert cassette._path == '/foo/test'
+
+
+@pytest.fixture
+def random_fixture():
+    return 1
+
+
+@use_cassette('test')
+def test_fixtures_with_use_cassette(random_fixture):
+    # Applying a decorator to a test function that requests features can cause
+    # problems if the decorator does not preserve the signature of the original
+    # test function.
+
+    # This test ensures that use_cassette preserves the signature of
+    # the original test function, and thus that use_cassette is
+    # compatible with py.test fixtures. It is admittedly a bit strange
+    # because the test would never even run if the relevant feature
+    # were broken.
+    pass
+
+
+def test_custom_patchers():
+    class Test(object):
+        attribute = None
+        attribute2 = None
+    test_vcr = VCR(custom_patches=((Test, 'attribute', VCRHTTPSConnection),))
+    with test_vcr.use_cassette('custom_patches'):
+        assert issubclass(Test.attribute, VCRHTTPSConnection)
+        assert VCRHTTPSConnection is not Test.attribute
+
+    with test_vcr.use_cassette(
+        'custom_patches',
+        custom_patches=((Test, 'attribute2', VCRHTTPSConnection),)
+    ):
+        assert issubclass(Test.attribute, VCRHTTPSConnection)
+        assert VCRHTTPSConnection is not Test.attribute
+        assert Test.attribute is Test.attribute2
+
+
+def test_inject_cassette():
+    vcr = VCR(inject_cassette=True)
+
+    @vcr.use_cassette('test', record_mode='once')
+    def with_cassette_injected(cassette):
+        assert cassette.record_mode == 'once'
+
+    @vcr.use_cassette('test', record_mode='once', inject_cassette=False)
+    def without_cassette_injected():
+        pass
+
+    with_cassette_injected()
+    without_cassette_injected()
+
+
+def test_with_current_defaults():
+    vcr = VCR(inject_cassette=True, record_mode='once')
+
+    @vcr.use_cassette('test', with_current_defaults=False)
+    def changing_defaults(cassette, checks):
+        checks(cassette)
+
+    @vcr.use_cassette('test', with_current_defaults=True)
+    def current_defaults(cassette, checks):
+        checks(cassette)
+
+    def assert_record_mode_once(cassette):
+        assert cassette.record_mode == 'once'
+
+    def assert_record_mode_all(cassette):
+        assert cassette.record_mode == 'all'
+
+    changing_defaults(assert_record_mode_once)
+    current_defaults(assert_record_mode_once)
+
+    vcr.record_mode = 'all'
+    changing_defaults(assert_record_mode_all)
+    current_defaults(assert_record_mode_once)
+
+
+def test_cassette_library_dir_with_decoration_and_no_explicit_path():
+    library_dir = '/libary_dir'
+    vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
+    @vcr.use_cassette()
+    def function_name(cassette):
+        assert cassette._path == os.path.join(library_dir, 'function_name')
+
+    function_name()
+
+
+def test_cassette_library_dir_with_decoration_and_explicit_path():
+    library_dir = '/libary_dir'
+    vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
+    @vcr.use_cassette(path='custom_name')
+    def function_name(cassette):
+        assert cassette._path == os.path.join(library_dir, 'custom_name')
+
+    function_name()
+
+
+def test_cassette_library_dir_with_decoration_and_super_explicit_path():
+    library_dir = '/libary_dir'
+    vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir)
+
+    @vcr.use_cassette(path=os.path.join(library_dir, 'custom_name'))
+    def function_name(cassette):
+        assert cassette._path == os.path.join(library_dir, 'custom_name')
+
+    function_name()
+
+
+def test_cassette_library_dir_with_path_transformer():
+    library_dir = '/libary_dir'
+    vcr = VCR(inject_cassette=True, cassette_library_dir=library_dir,
+              path_transformer=lambda path: path + '.json')
+
+    @vcr.use_cassette()
+    def function_name(cassette):
+        assert cassette._path == os.path.join(library_dir, 'function_name.json')
+
+    function_name()
+
+
+def test_use_cassette_with_no_extra_invocation():
+    vcr = VCR(inject_cassette=True, cassette_library_dir='/')
+
+    @vcr.use_cassette
+    def function_name(cassette):
+        assert cassette._path == os.path.join('/', 'function_name')
+
+    function_name()
+
+
+def test_path_transformer():
+    vcr = VCR(inject_cassette=True, cassette_library_dir='/',
+              path_transformer=lambda x: x + '_test')
+
+    @vcr.use_cassette
+    def function_name(cassette):
+        assert cassette._path == os.path.join('/', 'function_name_test')
+
+    function_name()
+
+
+def test_cassette_name_generator_defaults_to_using_module_function_defined_in():
+    vcr = VCR(inject_cassette=True)
+
+    @vcr.use_cassette
+    def function_name(cassette):
+        assert cassette._path == os.path.join(os.path.dirname(__file__),
+                                              'function_name')
+    function_name()
+
+
+def test_ensure_suffix():
+    vcr = VCR(inject_cassette=True, path_transformer=VCR.ensure_suffix('.yaml'))
+
+    @vcr.use_cassette
+    def function_name(cassette):
+        assert cassette._path == os.path.join(os.path.dirname(__file__),
+                                              'function_name.yaml')
+
+    function_name()
+
+
+def test_additional_matchers():
+    vcr = VCR(match_on=('uri',), inject_cassette=True)
+
+    @vcr.use_cassette
+    def function_defaults(cassette):
+        assert set(cassette._match_on) == set([vcr.matchers['uri']])
+
+    @vcr.use_cassette(additional_matchers=('body',))
+    def function_additional(cassette):
+        assert set(cassette._match_on) == set([vcr.matchers['uri'], vcr.matchers['body']])
+
+    function_defaults()
+    function_additional()
+
+
+def test_decoration_should_respect_function_return_value():
+    vcr = VCR()
+    ret = 'a-return-value'
+
+    @vcr.use_cassette
+    def function_with_return():
+        return ret
+
+    assert ret == function_with_return()
+
+
+class TestVCRClass(VCR().test_case()):
+
+    def no_decoration(self):
+        assert httplib.HTTPConnection == _HTTPConnection
+        self.test_dynamically_added()
+        assert httplib.HTTPConnection == _HTTPConnection
+
+    def test_one(self):
+        with force_reset():
+            self.no_decoration()
+        with force_reset():
+            self.test_two()
+        assert httplib.HTTPConnection != _HTTPConnection
+
+    def test_two(self):
+        assert httplib.HTTPConnection != _HTTPConnection
+
+
+def test_dynamically_added(self):
+    assert httplib.HTTPConnection != _HTTPConnection
+
+
+TestVCRClass.test_dynamically_added = test_dynamically_added
+del test_dynamically_added

tox.ini

@@ -1,189 +1,32 @@
-# Tox (http://tox.testrun.org/) is a tool for running tests
-# in multiple virtualenvs. This configuration file will run the
-# test suite on all supported python versions. To use it, "pip install tox"
-# and then run "tox" from this directory.
-
 [tox]
-envlist = 
-    py26,
-    py27,
-    py33,
-    py34,
-    pypy,
-    py26requests24,
-    py27requests24,
-    py34requests24,
-    pypyrequests24,
-    py26requests23,
-    py27requests23,
-    py34requests23,
-    pypyrequests23,
-    py26requests22,
-    py27requests22,
-    py34requests22,
-    pypyrequests22,
-    py26requests1,
-    py27requests1,
-    py33requests1,
-    pypyrequests1,
-    py26httplib2,
-    py27httplib2,
-    py33httplib2,
-    py34httplib2,
-    pypyhttplib2,
+envlist = {py26,py27,py33,py34,pypy}-{requests27,requests26,requests25,requests24,requests23,requests22,requests1,httplib2,urllib317,urllib319,urllib3110,tornado,boto}
 
 [testenv]
 commands =
     py.test {posargs}
+basepython =
+    py26: python2.6
+    py27: python2.7
+    py33: python3.3
+    py34: python3.4
+    pypy: pypy
 deps =
     mock
     pytest
     pytest-localserver
     PyYAML
-    ipdb
-
-[testenv:py26requests1]
-basepython = python2.6
-deps =
-    {[testenv]deps}
-    requests==1.2.3
-
-[testenv:py27requests1]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    requests==1.2.3
-
-[testenv:py33requests1]
-basepython = python3.3
-deps =
-    {[testenv]deps}
-    requests==1.2.3
-
-[testenv:pypyrequests1]
-basepython = pypy
-deps =
-    {[testenv]deps}
-    requests==1.2.3
-
-[testenv:py26requests24]
-basepython = python2.6
-deps =
-    {[testenv]deps}
-    requests==2.4.0
-
-[testenv:py27requests24]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    requests==2.4.0
-
-[testenv:py33requests24]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.4.0
-
-[testenv:py34requests24]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.4.0
-
-[testenv:pypyrequests24]
-basepython = pypy
-deps =
-    {[testenv]deps}
-    requests==2.4.0
-
-
-[testenv:py26requests23]
-basepython = python2.6
-deps =
-    {[testenv]deps}
-    requests==2.3.0
-
-[testenv:py27requests23]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    requests==2.3.0
-
-[testenv:py33requests23]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.3.0
-
-[testenv:py34requests23]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.3.0
-
-[testenv:pypyrequests23]
-basepython = pypy
-deps =
-    {[testenv]deps}
-    requests==2.3.0
-
-[testenv:py26requests22]
-basepython = python2.6
-deps =
-    {[testenv]deps}
-    requests==2.2.1
-
-[testenv:py27requests22]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    requests==2.2.1
-
-[testenv:py33requests22]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.2.1
-
-[testenv:py34requests22]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    requests==2.2.1
-    
-
-[testenv:pypyrequests22]
-basepython = pypy
-deps =
-    {[testenv]deps}
-    requests==2.2.1
-
-[testenv:py26httplib2]
-basepython = python2.6
-deps =
-    {[testenv]deps}
-    httplib2
-
-[testenv:py27httplib2]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    httplib2
-
-[testenv:py33httplib2]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    httplib2
-
-[testenv:py34httplib2]
-basepython = python3.4
-deps =
-    {[testenv]deps}
-    httplib2
-
-[testenv:pypyhttplib2]
-basepython = pypy
-deps =
-    {[testenv]deps}
-    httplib2
+    requests1: requests==1.2.3
+    requests27: requests==2.7.0
+    requests26: requests==2.6.0
+    requests25: requests==2.5.0
+    requests24: requests==2.4.0
+    requests23: requests==2.3.0
+    requests22: requests==2.2.1
+    httplib2: httplib2
+    urllib317: urllib3==1.7.1
+    urllib319: urllib3==1.9.1
+    urllib3110: urllib3==1.10.2
+    {py26,py27,py33,py34,pypy}-tornado: tornado
+    {py26,py27,py33,py34,pypy}-tornado: pytest-tornado
+    {py26,py27,py33,py34}-tornado: pycurl
+    boto: boto

vcr/cassette.py

@@ -1,37 +1,45 @@
-'''The container for recorded requests and responses'''
+import inspect
 import logging
+import operator
+import sys
 
-import contextlib2
-try:
-    from collections import Counter
-except ImportError:
-    from .compat.counter import Counter
+import wrapt
 
-# Internal imports
+from .compat import contextlib, collections
+from .errors import UnhandledHTTPRequestError
+from .matchers import requests_match, uri, method
 from .patch import CassettePatcherBuilder
 from .persist import load_cassette, save_cassette
-from .filters import filter_request
 from .serializers import yamlserializer
-from .matchers import requests_match, uri, method
-from .errors import UnhandledHTTPRequestError
+from .util import partition_dict
 
 
 log = logging.getLogger(__name__)
 
 
-class CassetteContextDecorator(contextlib2.ContextDecorator):
+class CassetteContextDecorator(object):
     """Context manager/decorator that handles installing the cassette and
     removing cassettes.
 
-    This class defers the creation of a new cassette instance until the point at
-    which it is installed by context manager or decorator. The fact that a new
-    cassette is used with each application prevents the state of any cassette
-    from interfering with another.
+    This class defers the creation of a new cassette instance until
+    the point at which it is installed by context manager or
+    decorator. The fact that a new cassette is used with each
+    application prevents the state of any cassette from interfering
+    with another.
+
+    Instances of this class are NOT reentrant as context managers.
+    However, functions that are decorated by
+    ``CassetteContextDecorator`` instances ARE reentrant. See the
+    implementation of ``__call__`` on this class for more details.
+    There is also a guard against attempts to reenter instances of
+    this class as a context manager in ``__exit__``.
     """
 
+    _non_cassette_arguments = ('path_transformer', 'func_path_generator')
+
     @classmethod
-    def from_args(cls, cassette_class, path, **kwargs):
-        return cls(cassette_class, lambda: (path, kwargs))
+    def from_args(cls, cassette_class, **kwargs):
+        return cls(cassette_class, lambda: dict(kwargs))
 
     def __init__(self, cls, args_getter):
         self.cls = cls
@@ -39,33 +47,136 @@ class CassetteContextDecorator(contextlib2.ContextDecorator):
         self.__finish = None
 
     def _patch_generator(self, cassette):
-        with contextlib2.ExitStack() as exit_stack:
+        with contextlib.ExitStack() as exit_stack:
             for patcher in CassettePatcherBuilder(cassette).build():
                 exit_stack.enter_context(patcher)
-            log.debug('Entered context for cassette at {0}.'.format(cassette._path))
+            log_format = '{action} context for cassette at {path}.'
+            log.debug(log_format.format(
+                action="Entering", path=cassette._path
+            ))
             yield cassette
-            log.debug('Exiting context for cassette at {0}.'.format(cassette._path))
-             # TODO(@IvanMalison): Hmmm. it kind of feels like this should be somewhere else.
+            log.debug(log_format.format(
+                action="Exiting", path=cassette._path
+            ))
+            # TODO(@IvanMalison): Hmmm. it kind of feels like this should be
+            # somewhere else.
             cassette._save()
 
     def __enter__(self):
-        assert self.__finish is None
-        path, kwargs = self._args_getter()
-        self.__finish = self._patch_generator(self.cls.load(path, **kwargs))
+        # This assertion is here to prevent the dangerous behavior
+        # that would result from forgetting about a __finish before
+        # completing it.
+        # How might this condition be met? Here is an example:
+        # context_decorator = Cassette.use('whatever')
+        # with context_decorator:
+        #     with context_decorator:
+        #         pass
+        assert self.__finish is None, "Cassette already open."
+        other_kwargs, cassette_kwargs = partition_dict(
+            lambda key, _: key in self._non_cassette_arguments,
+            self._args_getter()
+        )
+        if other_kwargs.get('path_transformer'):
+            transformer = other_kwargs['path_transformer']
+            cassette_kwargs['path'] = transformer(cassette_kwargs['path'])
+        self.__finish = self._patch_generator(self.cls.load(**cassette_kwargs))
         return next(self.__finish)
 
     def __exit__(self, *args):
         next(self.__finish, None)
         self.__finish = None
 
+    @wrapt.decorator
+    def __call__(self, function, instance, args, kwargs):
+        # This awkward cloning thing is done to ensure that decorated
+        # functions are reentrant. This is required for thread
+        # safety and the correct operation of recursive functions.
+        args_getter = self._build_args_getter_for_decorator(function)
+        return type(self)(self.cls, args_getter)._execute_function(
+            function, args, kwargs
+        )
+
+    def _execute_function(self, function, args, kwargs):
+        if inspect.isgeneratorfunction(function):
+            handler = self._handle_coroutine
+        else:
+            handler = self._handle_function
+        return handler(function, args, kwargs)
+
+    def _handle_coroutine(self, function, args, kwargs):
+        """Wraps a coroutine so that we're inside the cassette context for the
+        duration of the coroutine.
+        """
+        with self as cassette:
+            coroutine = self.__handle_function(cassette, function, args, kwargs)
+            # We don't need to catch StopIteration. The caller (Tornado's
+            # gen.coroutine, for example) will handle that.
+            to_yield = next(coroutine)
+            while True:
+                try:
+                    to_send = yield to_yield
+                except Exception:
+                    to_yield = coroutine.throw(*sys.exc_info())
+                else:
+                    to_yield = coroutine.send(to_send)
+
+    def __handle_function(self, cassette, function, args, kwargs):
+        if cassette.inject:
+            return function(cassette, *args, **kwargs)
+        else:
+            return function(*args, **kwargs)
+
+    def _handle_function(self, function, args, kwargs):
+        with self as cassette:
+            return self.__handle_function(cassette, function, args, kwargs)
+
+    @staticmethod
+    def get_function_name(function):
+        return function.__name__
+
+    def _build_args_getter_for_decorator(self, function):
+        def new_args_getter():
+            kwargs = self._args_getter()
+            if 'path' not in kwargs:
+                name_generator = (kwargs.get('func_path_generator') or
+                                  self.get_function_name)
+                path = name_generator(function)
+                kwargs['path'] = path
+            return kwargs
+        return new_args_getter
+
+
+class SimilarityScorer(object):
+
+    def __init__(self, matchers, request, ascending=False):
+        self._matchers = matchers
+        self._request = request
+        self._ascending = False
+
+    def score(self, candidate, play_count):
+        value = 1
+        total = 0
+        if play_count < 1:
+            total += value
+        if self._ascending:
+            value *= 2
+        for matcher in self._matchers[::-1]:
+            if matcher(self._request, candidate):
+                total += value
+            if self._ascending:
+                value *= 2
+        return total
+
 
 class Cassette(object):
-    '''A container for recorded requests and responses'''
+    """A container for recorded requests and responses"""
+
+    max_playcount = 1
 
     @classmethod
-    def load(cls, path, **kwargs):
-        '''Load in the cassette stored at the provided path'''
-        new_cassette = cls(path, **kwargs)
+    def load(cls, **kwargs):
+        """Instantiate and load the cassette stored at the specified path."""
+        new_cassette = cls(**kwargs)
         new_cassette._load()
         return new_cassette
 
@@ -74,32 +185,29 @@ class Cassette(object):
         return CassetteContextDecorator(cls, arg_getter)
 
     @classmethod
-    def use(cls, *args, **kwargs):
-        return CassetteContextDecorator.from_args(cls, *args, **kwargs)
+    def use(cls, **kwargs):
+        return CassetteContextDecorator.from_args(cls, **kwargs)
 
     def __init__(self, path, serializer=yamlserializer, record_mode='once',
-                 match_on=(uri, method), filter_headers=(),
-                 filter_query_parameters=(), before_record=None, before_record_response=None,
-                 ignore_hosts=(), ignore_localhost=()):
+                 match_on=(uri, method), before_record_request=None,
+                 before_record_response=None, custom_patches=(), inject=False,
+                 similarity_scorer_factory=None):
+
         self._path = path
         self._serializer = serializer
         self._match_on = match_on
-        self._filter_headers = filter_headers
-        self._filter_query_parameters = filter_query_parameters
-        self._before_record = before_record
-        self._before_record_response = before_record_response
-        self._ignore_hosts = ignore_hosts
-        if ignore_localhost:
-            self._ignore_hosts = list(set(
-                list(self._ignore_hosts) + ['localhost', '0.0.0.0', '127.0.0.1']
-            ))
+        self._before_record_request = before_record_request or (lambda x: x)
+        self._before_record_response = before_record_response or (lambda x: x)
+        self._similarity_scorer_factory = similarity_scorer_factory or SimilarityScorer
+        self.inject = inject
+        self.record_mode = record_mode
+        self.custom_patches = custom_patches
 
         # self.data is the list of (req, resp) tuples
         self.data = []
-        self.play_counts = Counter()
+        self.play_counts = collections.Counter()
         self.dirty = False
         self.rewound = False
-        self.record_mode = record_mode
 
     @property
     def play_count(self):
@@ -107,9 +215,7 @@ class Cassette(object):
 
     @property
     def all_played(self):
-        """
-        Returns True if all responses have been played, False otherwise.
-        """
+        """Returns True if all responses have been played, False otherwise."""
         return self.play_count == len(self)
 
     @property
@@ -125,50 +231,57 @@ class Cassette(object):
         return self.rewound and self.record_mode == 'once' or \
             self.record_mode == 'none'
 
-    def _filter_request(self, request):
-        return filter_request(
-            request=request,
-            filter_headers=self._filter_headers,
-            filter_query_parameters=self._filter_query_parameters,
-            before_record=self._before_record,
-            ignore_hosts=self._ignore_hosts
-        )
-
     def append(self, request, response):
-        '''Add a request, response pair to this cassette'''
-        request = self._filter_request(request)
+        """Add a request, response pair to this cassette"""
+        request = self._before_record_request(request)
         if not request:
             return
-        if self._before_record_response:
-            response = self._before_record_response(response)
+        response = self._before_record_response(response)
+        if response is None:
+            return
         self.data.append((request, response))
         self.dirty = True
 
+    def filter_request(self, request):
+        return self._before_record_request(request)
+
     def _responses(self, request):
         """
         internal API, returns an iterator with all responses matching
         the request.
         """
-        request = self._filter_request(request)
-        if not request:
-            return
+        request = self._before_record_request(request)
         for index, (stored_request, response) in enumerate(self.data):
             if requests_match(request, stored_request, self._match_on):
                 yield index, response
 
+    def failing_matchers(self, a, b):
+        return [matcher for matcher in self._match_on if not matcher(a, b)]
+
+    def similar_requests(self, request):
+        scorer = self._similarity_scorer_factory(self._match_on, request).score
+        scored_requests = [
+            (
+                stored_request,
+                scorer(stored_request, self.play_counts[index])
+            )
+            for index, (stored_request, response) in enumerate(self.data)
+        ]
+        return sorted(scored_requests, key=operator.itemgetter(1), reverse=True)
+
     def can_play_response_for(self, request):
-        request = self._filter_request(request)
+        request = self._before_record_request(request)
         return request and request in self and \
             self.record_mode != 'all' and \
             self.rewound
 
     def play_response(self, request):
-        '''
+        """
         Get the response corresponding to a request, but only if it
         hasn't been played back before, and mark it as played
-        '''
+        """
         for index, response in self._responses(request):
-            if self.play_counts[index] == 0:
+            if self.play_counts[index] < self.max_playcount:
                 self.play_counts[index] += 1
                 return response
         # The cassette doesn't contain the request asked for.
@@ -178,11 +291,11 @@ class Cassette(object):
         )
 
     def responses_of(self, request):
-        '''
+        """
         Find the responses corresponding to a request.
         This function isn't actually used by VCR internally, but is
         provided as an external API.
-        '''
+        """
         responses = [response for index, response in self._responses(request)]
 
         if responses:
@@ -224,11 +337,12 @@ class Cassette(object):
         )
 
     def __len__(self):
-        '''Return the number of request,response pairs stored in here'''
+        """Return the number of request,response pairs stored in here"""
         return len(self.data)
 
     def __contains__(self, request):
-        '''Return whether or not a request has been stored'''
-        for response in self._responses(request):
-            return True
+        """Return whether or not a request has been stored"""
+        for index, response in self._responses(request):
+            if self.play_counts[index] == 0:
+                return True
         return False

vcr/compat.py

@@ -0,0 +1,18 @@
+try:
+    from unittest import mock
+except ImportError:
+    import mock
+
+try:
+    import contextlib
+except ImportError:
+    import contextlib2 as contextlib
+else:
+    if not hasattr(contextlib, 'ExitStack'):
+        import contextlib2 as contextlib
+
+import collections
+if not hasattr(collections, 'Counter'):
+    import backport_collections as collections
+
+__all__ = ['mock', 'contextlib', 'collections']

vcr/compat/counter.py

@@ -1,194 +0,0 @@
-from __future__ import print_function
-from operator import itemgetter
-from heapq import nlargest
-from itertools import repeat, ifilter
-
-# From http://code.activestate.com/recipes/576611-counter-class/
-# Backported for python 2.6 support
-
-class Counter(dict):
-    '''Dict subclass for counting hashable objects.  Sometimes called a bag
-    or multiset.  Elements are stored as dictionary keys and their counts
-    are stored as dictionary values.
-
-    >>> Counter('zyzygy')
-    Counter({'y': 3, 'z': 2, 'g': 1})
-
-    '''
-
-    def __init__(self, iterable=None, **kwds):
-        '''Create a new, empty Counter object.  And if given, count elements
-        from an input iterable.  Or, initialize the count from another mapping
-        of elements to their counts.
-
-        >>> c = Counter()                           # a new, empty counter
-        >>> c = Counter('gallahad')                 # a new counter from an iterable
-        >>> c = Counter({'a': 4, 'b': 2})           # a new counter from a mapping
-        >>> c = Counter(a=4, b=2)                   # a new counter from keyword args
-
-        '''
-        self.update(iterable, **kwds)
-
-    def __missing__(self, key):
-        return 0
-
-    def most_common(self, n=None):
-        '''List the n most common elements and their counts from the most
-        common to the least.  If n is None, then list all element counts.
-
-        >>> Counter('abracadabra').most_common(3)
-        [('a', 5), ('r', 2), ('b', 2)]
-
-        '''
-        if n is None:
-            return sorted(self.iteritems(), key=itemgetter(1), reverse=True)
-        return nlargest(n, self.iteritems(), key=itemgetter(1))
-
-    def elements(self):
-        '''Iterator over elements repeating each as many times as its count.
-
-        >>> c = Counter('ABCABC')
-        >>> sorted(c.elements())
-        ['A', 'A', 'B', 'B', 'C', 'C']
-
-        If an element's count has been set to zero or is a negative number,
-        elements() will ignore it.
-
-        '''
-        for elem, count in self.iteritems():
-            for _ in repeat(None, count):
-                yield elem
-
-    # Override dict methods where the meaning changes for Counter objects.
-
-    @classmethod
-    def fromkeys(cls, iterable, v=None):
-        raise NotImplementedError(
-            'Counter.fromkeys() is undefined.  Use Counter(iterable) instead.')
-
-    def update(self, iterable=None, **kwds):
-        '''Like dict.update() but add counts instead of replacing them.
-
-        Source can be an iterable, a dictionary, or another Counter instance.
-
-        >>> c = Counter('which')
-        >>> c.update('witch')           # add elements from another iterable
-        >>> d = Counter('watch')
-        >>> c.update(d)                 # add elements from another counter
-        >>> c['h']                      # four 'h' in which, witch, and watch
-        4
-
-        '''
-        if iterable is not None:
-            if hasattr(iterable, 'iteritems'):
-                if self:
-                    self_get = self.get
-                    for elem, count in iterable.iteritems():
-                        self[elem] = self_get(elem, 0) + count
-                else:
-                    dict.update(self, iterable) # fast path when counter is empty
-            else:
-                self_get = self.get
-                for elem in iterable:
-                    self[elem] = self_get(elem, 0) + 1
-        if kwds:
-            self.update(kwds)
-
-    def copy(self):
-        'Like dict.copy() but returns a Counter instance instead of a dict.'
-        return Counter(self)
-
-    def __delitem__(self, elem):
-        'Like dict.__delitem__() but does not raise KeyError for missing values.'
-        if elem in self:
-            dict.__delitem__(self, elem)
-
-    def __repr__(self):
-        if not self:
-            return '%s()' % self.__class__.__name__
-        items = ', '.join(map('%r: %r'.__mod__, self.most_common()))
-        return '%s({%s})' % (self.__class__.__name__, items)
-
-    # Multiset-style mathematical operations discussed in:
-    #       Knuth TAOCP Volume II section 4.6.3 exercise 19
-    #       and at http://en.wikipedia.org/wiki/Multiset
-    #
-    # Outputs guaranteed to only include positive counts.
-    #
-    # To strip negative and zero counts, add-in an empty counter:
-    #       c += Counter()
-
-    def __add__(self, other):
-        '''Add counts from two counters.
-
-        >>> Counter('abbb') + Counter('bcc')
-        Counter({'b': 4, 'c': 2, 'a': 1})
-
-
-        '''
-        if not isinstance(other, Counter):
-            return NotImplemented
-        result = Counter()
-        for elem in set(self) | set(other):
-            newcount = self[elem] + other[elem]
-            if newcount > 0:
-                result[elem] = newcount
-        return result
-
-    def __sub__(self, other):
-        ''' Subtract count, but keep only results with positive counts.
-
-        >>> Counter('abbbc') - Counter('bccd')
-        Counter({'b': 2, 'a': 1})
-
-        '''
-        if not isinstance(other, Counter):
-            return NotImplemented
-        result = Counter()
-        for elem in set(self) | set(other):
-            newcount = self[elem] - other[elem]
-            if newcount > 0:
-                result[elem] = newcount
-        return result
-
-    def __or__(self, other):
-        '''Union is the maximum of value in either of the input counters.
-
-        >>> Counter('abbb') | Counter('bcc')
-        Counter({'b': 3, 'c': 2, 'a': 1})
-
-        '''
-        if not isinstance(other, Counter):
-            return NotImplemented
-        _max = max
-        result = Counter()
-        for elem in set(self) | set(other):
-            newcount = _max(self[elem], other[elem])
-            if newcount > 0:
-                result[elem] = newcount
-        return result
-
-    def __and__(self, other):
-        ''' Intersection is the minimum of corresponding counts.
-
-        >>> Counter('abbb') & Counter('bcc')
-        Counter({'b': 1})
-
-        '''
-        if not isinstance(other, Counter):
-            return NotImplemented
-        _min = min
-        result = Counter()
-        if len(self) < len(other):
-            self, other = other, self
-        for elem in ifilter(self.__contains__, other):
-            newcount = _min(self[elem], other[elem])
-            if newcount > 0:
-                result[elem] = newcount
-        return result
-
-
-if __name__ == '__main__':
-    import doctest
-    print(doctest.testmod())
-

vcr/compat/ordereddict.py

@@ -1,258 +0,0 @@
-# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
-# Passes Python2.7's test suite and incorporates all the latest updates.
-
-try:
-    from thread import get_ident as _get_ident
-except ImportError:
-    from dummy_thread import get_ident as _get_ident
-
-try:
-    from _abcoll import KeysView, ValuesView, ItemsView
-except ImportError:
-    pass
-
-
-class OrderedDict(dict):
-    'Dictionary that remembers insertion order'
-    # An inherited dict maps keys to values.
-    # The inherited dict provides __getitem__, __len__, __contains__, and get.
-    # The remaining methods are order-aware.
-    # Big-O running times for all methods are the same as for regular dictionaries.
-
-    # The internal self.__map dictionary maps keys to links in a doubly linked list.
-    # The circular doubly linked list starts and ends with a sentinel element.
-    # The sentinel element never gets deleted (this simplifies the algorithm).
-    # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
-
-    def __init__(self, *args, **kwds):
-        '''Initialize an ordered dictionary.  Signature is the same as for
-        regular dictionaries, but keyword arguments are not recommended
-        because their insertion order is arbitrary.
-
-        '''
-        if len(args) > 1:
-            raise TypeError('expected at most 1 arguments, got %d' % len(args))
-        try:
-            self.__root
-        except AttributeError:
-            self.__root = root = []                     # sentinel node
-            root[:] = [root, root, None]
-            self.__map = {}
-        self.__update(*args, **kwds)
-
-    def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
-        'od.__setitem__(i, y) <==> od[i]=y'
-        # Setting a new item creates a new link which goes at the end of the linked
-        # list, and the inherited dictionary is updated with the new key/value pair.
-        if key not in self:
-            root = self.__root
-            last = root[0]
-            last[1] = root[0] = self.__map[key] = [last, root, key]
-        dict_setitem(self, key, value)
-
-    def __delitem__(self, key, dict_delitem=dict.__delitem__):
-        'od.__delitem__(y) <==> del od[y]'
-        # Deleting an existing item uses self.__map to find the link which is
-        # then removed by updating the links in the predecessor and successor nodes.
-        dict_delitem(self, key)
-        link_prev, link_next, key = self.__map.pop(key)
-        link_prev[1] = link_next
-        link_next[0] = link_prev
-
-    def __iter__(self):
-        'od.__iter__() <==> iter(od)'
-        root = self.__root
-        curr = root[1]
-        while curr is not root:
-            yield curr[2]
-            curr = curr[1]
-
-    def __reversed__(self):
-        'od.__reversed__() <==> reversed(od)'
-        root = self.__root
-        curr = root[0]
-        while curr is not root:
-            yield curr[2]
-            curr = curr[0]
-
-    def clear(self):
-        'od.clear() -> None.  Remove all items from od.'
-        try:
-            for node in self.__map.itervalues():
-                del node[:]
-            root = self.__root
-            root[:] = [root, root, None]
-            self.__map.clear()
-        except AttributeError:
-            pass
-        dict.clear(self)
-
-    def popitem(self, last=True):
-        '''od.popitem() -> (k, v), return and remove a (key, value) pair.
-        Pairs are returned in LIFO order if last is true or FIFO order if false.
-
-        '''
-        if not self:
-            raise KeyError('dictionary is empty')
-        root = self.__root
-        if last:
-            link = root[0]
-            link_prev = link[0]
-            link_prev[1] = root
-            root[0] = link_prev
-        else:
-            link = root[1]
-            link_next = link[1]
-            root[1] = link_next
-            link_next[0] = root
-        key = link[2]
-        del self.__map[key]
-        value = dict.pop(self, key)
-        return key, value
-
-    # -- the following methods do not depend on the internal structure --
-
-    def keys(self):
-        'od.keys() -> list of keys in od'
-        return list(self)
-
-    def values(self):
-        'od.values() -> list of values in od'
-        return [self[key] for key in self]
-
-    def items(self):
-        'od.items() -> list of (key, value) pairs in od'
-        return [(key, self[key]) for key in self]
-
-    def iterkeys(self):
-        'od.iterkeys() -> an iterator over the keys in od'
-        return iter(self)
-
-    def itervalues(self):
-        'od.itervalues -> an iterator over the values in od'
-        for k in self:
-            yield self[k]
-
-    def iteritems(self):
-        'od.iteritems -> an iterator over the (key, value) items in od'
-        for k in self:
-            yield (k, self[k])
-
-    def update(*args, **kwds):
-        '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
-
-        If E is a dict instance, does:           for k in E: od[k] = E[k]
-        If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
-        Or if E is an iterable of items, does:   for k, v in E: od[k] = v
-        In either case, this is followed by:     for k, v in F.items(): od[k] = v
-
-        '''
-        if len(args) > 2:
-            raise TypeError('update() takes at most 2 positional '
-                            'arguments (%d given)' % (len(args),))
-        elif not args:
-            raise TypeError('update() takes at least 1 argument (0 given)')
-        self = args[0]
-        # Make progressively weaker assumptions about "other"
-        other = ()
-        if len(args) == 2:
-            other = args[1]
-        if isinstance(other, dict):
-            for key in other:
-                self[key] = other[key]
-        elif hasattr(other, 'keys'):
-            for key in other.keys():
-                self[key] = other[key]
-        else:
-            for key, value in other:
-                self[key] = value
-        for key, value in kwds.items():
-            self[key] = value
-
-    __update = update  # let subclasses override update without breaking __init__
-
-    __marker = object()
-
-    def pop(self, key, default=__marker):
-        '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
-        If key is not found, d is returned if given, otherwise KeyError is raised.
-
-        '''
-        if key in self:
-            result = self[key]
-            del self[key]
-            return result
-        if default is self.__marker:
-            raise KeyError(key)
-        return default
-
-    def setdefault(self, key, default=None):
-        'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
-        if key in self:
-            return self[key]
-        self[key] = default
-        return default
-
-    def __repr__(self, _repr_running={}):
-        'od.__repr__() <==> repr(od)'
-        call_key = id(self), _get_ident()
-        if call_key in _repr_running:
-            return '...'
-        _repr_running[call_key] = 1
-        try:
-            if not self:
-                return '%s()' % (self.__class__.__name__,)
-            return '%s(%r)' % (self.__class__.__name__, self.items())
-        finally:
-            del _repr_running[call_key]
-
-    def __reduce__(self):
-        'Return state information for pickling'
-        items = [[k, self[k]] for k in self]
-        inst_dict = vars(self).copy()
-        for k in vars(OrderedDict()):
-            inst_dict.pop(k, None)
-        if inst_dict:
-            return (self.__class__, (items,), inst_dict)
-        return self.__class__, (items,)
-
-    def copy(self):
-        'od.copy() -> a shallow copy of od'
-        return self.__class__(self)
-
-    @classmethod
-    def fromkeys(cls, iterable, value=None):
-        '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
-        and values equal to v (which defaults to None).
-
-        '''
-        d = cls()
-        for key in iterable:
-            d[key] = value
-        return d
-
-    def __eq__(self, other):
-        '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
-        while comparison to a regular mapping is order-insensitive.
-
-        '''
-        if isinstance(other, OrderedDict):
-            return len(self)==len(other) and self.items() == other.items()
-        return dict.__eq__(self, other)
-
-    def __ne__(self, other):
-        return not self == other
-
-    # -- the following methods are only used in Python 2.7 --
-
-    def viewkeys(self):
-        "od.viewkeys() -> a set-like object providing a view on od's keys"
-        return KeysView(self)
-
-    def viewvalues(self):
-        "od.viewvalues() -> an object providing a view on od's values"
-        return ValuesView(self)
-
-    def viewitems(self):
-        "od.viewitems() -> a set-like object providing a view on od's items"
-        return ItemsView(self)

vcr/config.py

@@ -1,30 +1,41 @@
+import copy
 import functools
+import inspect
 import os
+import types
+
+import six
+
+from .compat import collections
 from .cassette import Cassette
 from .serializers import yamlserializer, jsonserializer
+from .util import compose, auto_decorate
 from . import matchers
+from . import filters
 
 
 class VCR(object):
-    def __init__(self,
-                 serializer='yaml',
-                 cassette_library_dir=None,
-                 record_mode="once",
-                 filter_headers=(),
-                 filter_query_parameters=(),
-                 before_record=None,
-                 before_record_response=None,
-                 match_on=(
-                     'method',
-                     'scheme',
-                     'host',
-                     'port',
-                     'path',
-                     'query',
-                 ),
-                 ignore_hosts=(),
-                 ignore_localhost=False,
-                 ):
+
+    @staticmethod
+    def is_test_method(method_name, function):
+        return method_name.startswith('test') and \
+            isinstance(function, types.FunctionType)
+
+    @staticmethod
+    def ensure_suffix(suffix):
+        def ensure(path):
+            if not path.endswith(suffix):
+                return path + suffix
+            return path
+        return ensure
+
+    def __init__(self, path_transformer=None, before_record_request=None,
+                 custom_patches=(), filter_query_parameters=(), ignore_hosts=(),
+                 record_mode="once", ignore_localhost=False, filter_headers=(),
+                 before_record_response=None, filter_post_data_parameters=(),
+                 match_on=('method', 'scheme', 'host', 'port', 'path', 'query'),
+                 before_record=None, inject_cassette=False, serializer='yaml',
+                 cassette_library_dir=None, func_path_generator=None):
         self.serializer = serializer
         self.match_on = match_on
         self.cassette_library_dir = cassette_library_dir
@@ -42,24 +53,31 @@ class VCR(object):
             'path': matchers.path,
             'query': matchers.query,
             'headers': matchers.headers,
+            'raw_body': matchers.raw_body,
             'body': matchers.body,
         }
         self.record_mode = record_mode
         self.filter_headers = filter_headers
         self.filter_query_parameters = filter_query_parameters
-        self.before_record = before_record
+        self.filter_post_data_parameters = filter_post_data_parameters
+        self.before_record_request = before_record_request or before_record
         self.before_record_response = before_record_response
         self.ignore_hosts = ignore_hosts
         self.ignore_localhost = ignore_localhost
+        self.inject_cassette = inject_cassette
+        self.path_transformer = path_transformer
+        self.func_path_generator = func_path_generator
+        self._custom_patches = tuple(custom_patches)
 
     def _get_serializer(self, serializer_name):
         try:
             serializer = self.serializers[serializer_name]
         except KeyError:
-            print("Serializer {0} doesn't exist or isn't registered".format(
-                serializer_name
-            ))
-            raise KeyError
+            raise KeyError(
+                "Serializer {0} doesn't exist or isn't registered".format(
+                    serializer_name
+                )
+            )
         return serializer
 
     def _get_matchers(self, matcher_names):
@@ -69,52 +87,176 @@ class VCR(object):
                 matchers.append(self.matchers[m])
         except KeyError:
             raise KeyError(
-                "Matcher {0} doesn't exist or isn't registered".format(
-                    m)
+                "Matcher {0} doesn't exist or isn't registered".format(m)
             )
         return matchers
 
-    def use_cassette(self, path, **kwargs):
-        args_getter = functools.partial(self.get_path_and_merged_config, path, **kwargs)
+    def use_cassette(self, path=None, **kwargs):
+        if path is not None and not isinstance(path, six.string_types):
+            function = path
+            # Assume this is an attempt to decorate a function
+            return self._use_cassette(**kwargs)(function)
+        return self._use_cassette(path=path, **kwargs)
+
+    def _use_cassette(self, with_current_defaults=False, **kwargs):
+        if with_current_defaults:
+            config = self.get_merged_config(**kwargs)
+            return Cassette.use(**config)
+        # This is made a function that evaluates every time a cassette
+        # is made so that changes that are made to this VCR instance
+        # that occur AFTER the `use_cassette` decorator is applied
+        # still affect subsequent calls to the decorated function.
+        args_getter = functools.partial(self.get_merged_config, **kwargs)
         return Cassette.use_arg_getter(args_getter)
 
-    def get_path_and_merged_config(self, path, **kwargs):
+    def get_merged_config(self, **kwargs):
         serializer_name = kwargs.get('serializer', self.serializer)
         matcher_names = kwargs.get('match_on', self.match_on)
+        path_transformer = kwargs.get(
+            'path_transformer',
+            self.path_transformer
+        )
+        func_path_generator = kwargs.get(
+            'func_path_generator',
+            self.func_path_generator
+        )
         cassette_library_dir = kwargs.get(
             'cassette_library_dir',
             self.cassette_library_dir
         )
+        additional_matchers = kwargs.get('additional_matchers', ())
+
         if cassette_library_dir:
-            path = os.path.join(cassette_library_dir, path)
+            def add_cassette_library_dir(path):
+                if not path.startswith(cassette_library_dir):
+                    return os.path.join(cassette_library_dir, path)
+                return path
+            path_transformer = compose(
+                add_cassette_library_dir, path_transformer
+            )
+        elif not func_path_generator:
+            # If we don't have a library dir, use the functions
+            # location to build a full path for cassettes.
+            func_path_generator = self._build_path_from_func_using_module
 
         merged_config = {
-            "serializer": self._get_serializer(serializer_name),
-            "match_on": self._get_matchers(matcher_names),
-            "record_mode": kwargs.get('record_mode', self.record_mode),
-            "filter_headers": kwargs.get(
-                'filter_headers', self.filter_headers
+            'serializer': self._get_serializer(serializer_name),
+            'match_on': self._get_matchers(
+                tuple(matcher_names) + tuple(additional_matchers)
             ),
-            "filter_query_parameters": kwargs.get(
-                'filter_query_parameters', self.filter_query_parameters
-            ),
-            "before_record": kwargs.get(
-                "before_record", self.before_record
-            ),
-            "before_record_response": kwargs.get(
-                "before_record_response", self.before_record_response
-            ),
-            "ignore_hosts": kwargs.get(
-                'ignore_hosts', self.ignore_hosts
-            ),
-            "ignore_localhost": kwargs.get(
-                'ignore_localhost', self.ignore_localhost
+            'record_mode': kwargs.get('record_mode', self.record_mode),
+            'before_record_request': self._build_before_record_request(kwargs),
+            'before_record_response': self._build_before_record_response(kwargs),
+            'custom_patches': self._custom_patches + kwargs.get(
+                'custom_patches', ()
             ),
+            'inject': kwargs.get('inject_cassette', self.inject_cassette),
+            'path_transformer': path_transformer,
+            'func_path_generator': func_path_generator
         }
-        return path, merged_config
+        path = kwargs.get('path')
+        if path:
+            merged_config['path'] = path
+        return merged_config
+
+    def _build_before_record_response(self, options):
+        before_record_response = options.get(
+            'before_record_response', self.before_record_response
+        )
+        filter_functions = []
+        if before_record_response:
+            if not isinstance(before_record_response, collections.Iterable):
+                before_record_response = (before_record_response,)
+            filter_functions.extend(before_record_response)
+
+        def before_record_response(response):
+            for function in filter_functions:
+                if response is None:
+                    break
+                response = function(response)
+            return response
+        return before_record_response
+
+    def _build_before_record_request(self, options):
+        filter_functions = []
+        filter_headers = options.get(
+            'filter_headers', self.filter_headers
+        )
+        filter_query_parameters = options.get(
+            'filter_query_parameters', self.filter_query_parameters
+        )
+        filter_post_data_parameters = options.get(
+            'filter_post_data_parameters', self.filter_post_data_parameters
+        )
+        before_record_request = options.get(
+            "before_record_request",
+            options.get("before_record", self.before_record_request)
+        )
+        ignore_hosts = options.get(
+            'ignore_hosts', self.ignore_hosts
+        )
+        ignore_localhost = options.get(
+            'ignore_localhost', self.ignore_localhost
+        )
+        if filter_headers:
+            filter_functions.append(
+                functools.partial(
+                    filters.remove_headers,
+                    headers_to_remove=filter_headers
+                )
+            )
+        if filter_query_parameters:
+            filter_functions.append(functools.partial(
+                filters.remove_query_parameters,
+               query_parameters_to_remove=filter_query_parameters
+            ))
+        if filter_post_data_parameters:
+            filter_functions.append(
+                functools.partial(
+                    filters.remove_post_data_parameters,
+                    post_data_parameters_to_remove=filter_post_data_parameters
+                )
+            )
+
+        hosts_to_ignore = set(ignore_hosts)
+        if ignore_localhost:
+            hosts_to_ignore.update(('localhost', '0.0.0.0', '127.0.0.1'))
+        if hosts_to_ignore:
+            filter_functions.append(self._build_ignore_hosts(hosts_to_ignore))
+
+        if before_record_request:
+            if not isinstance(before_record_request, collections.Iterable):
+                before_record_request = (before_record_request,)
+            filter_functions.extend(before_record_request)
+
+        def before_record_request(request):
+            request = copy.copy(request)
+            for function in filter_functions:
+                if request is None:
+                    break
+                request = function(request)
+            return request
+        return before_record_request
+
+    @staticmethod
+    def _build_ignore_hosts(hosts_to_ignore):
+        def filter_ignored_hosts(request):
+            if hasattr(request, 'host') and request.host in hosts_to_ignore:
+                return
+            return request
+        return filter_ignored_hosts
+
+    @staticmethod
+    def _build_path_from_func_using_module(function):
+        return os.path.join(os.path.dirname(inspect.getfile(function)),
+                            function.__name__)
 
     def register_serializer(self, name, serializer):
         self.serializers[name] = serializer
 
     def register_matcher(self, name, matcher):
         self.matchers[name] = matcher
+
+    def test_case(self, predicate=None):
+        predicate = predicate or self.is_test_method
+        return six.with_metaclass(auto_decorate(self.use_cassette, predicate))

vcr/errors.py

@@ -3,8 +3,5 @@ class CannotOverwriteExistingCassetteException(Exception):
 
 
 class UnhandledHTTPRequestError(KeyError):
-    '''
-    Raised when a cassette does not c
-    ontain the request we want
-    '''
+    """Raised when a cassette does not contain the request we want."""
     pass

vcr/filters.py

@@ -1,19 +1,20 @@
+from six import BytesIO, text_type
 from six.moves.urllib.parse import urlparse, urlencode, urlunparse
-import copy
+import json
+
+from .compat import collections
 
 
-def _remove_headers(request, headers_to_remove):
-    headers = copy.copy(request.headers)
-    headers_to_remove = [h.lower() for h in headers_to_remove]
-    keys = [k for k in headers if k.lower() in headers_to_remove]
-    if keys:
-        for k in keys:
-            headers.pop(k)
-        request.headers = headers
+def remove_headers(request, headers_to_remove):
+    new_headers = request.headers.copy()
+    for k in headers_to_remove:
+        if k in new_headers:
+            del new_headers[k]
+    request.headers = new_headers
     return request
 
 
-def _remove_query_parameters(request, query_parameters_to_remove):
+def remove_query_parameters(request, query_parameters_to_remove):
     query = request.query
     new_query = [(k, v) for (k, v) in query
                  if k not in query_parameters_to_remove]
@@ -24,20 +25,25 @@ def _remove_query_parameters(request, query_parameters_to_remove):
     return request
 
 
-def filter_request(
-        request,
-        filter_headers,
-        filter_query_parameters,
-        before_record,
-        ignore_hosts
-        ):
-    request = copy.copy(request)  # don't mutate request object
-    if hasattr(request, 'headers') and filter_headers:
-        request = _remove_headers(request, filter_headers)
-    if hasattr(request, 'host') and request.host in ignore_hosts:
-        return None
-    if filter_query_parameters:
-        request = _remove_query_parameters(request, filter_query_parameters)
-    if before_record:
-        request = before_record(request)
+def remove_post_data_parameters(request, post_data_parameters_to_remove):
+    if request.method == 'POST' and not isinstance(request.body, BytesIO):
+        if request.headers.get('Content-Type') == 'application/json':
+            json_data = json.loads(request.body.decode('utf-8'))
+            for k in list(json_data.keys()):
+                if k in post_data_parameters_to_remove:
+                    del json_data[k]
+            request.body = json.dumps(json_data).encode('utf-8')
+        else:
+            post_data = collections.OrderedDict()
+            if isinstance(request.body, text_type):
+                request.body = request.body.encode('utf-8')
+
+            for k, sep, v in (p.partition(b'=') for p in request.body.split(b'&')):
+                if k in post_data:
+                    post_data[k].append(v)
+                elif len(k) > 0 and k.decode('utf-8') not in post_data_parameters_to_remove:
+                    post_data[k] = [v]
+            request.body = b'&'.join(
+                b'='.join([k, v])
+                for k, vals in post_data.items() for v in vals)
     return request

vcr/matchers.py

@@ -1,4 +1,9 @@
+import json
+from six.moves import urllib, xmlrpc_client
+from .util import read_body
 import logging
+
+
 log = logging.getLogger(__name__)
 
 
@@ -30,24 +35,65 @@ def query(r1, r2):
     return r1.query == r2.query
 
 
+def raw_body(r1, r2):
+    return read_body(r1) == read_body(r2)
+
+
+def _header_checker(value, header='Content-Type'):
+    def checker(headers):
+        return value in headers.get(header, '').lower()
+    return checker
+
+
+def _transform_json(body):
+    # Request body is always a byte string, but json.loads() wants a text
+    # string. RFC 7159 says the default encoding is UTF-8 (although UTF-16
+    # and UTF-32 are also allowed: hmmmmm).
+    return json.loads(body.decode('utf-8'))
+
+
+_xml_header_checker = _header_checker('text/xml')
+_xmlrpc_header_checker = _header_checker('xmlrpc', header='User-Agent')
+_checker_transformer_pairs = (
+    (_header_checker('application/x-www-form-urlencoded'), urllib.parse.parse_qs),
+    (_header_checker('application/json'), _transform_json),
+    (lambda request: _xml_header_checker(request) and _xmlrpc_header_checker(request), xmlrpc_client.loads),
+)
+
+
+def _identity(x):
+    return x
+
+
+def _get_transformer(request):
+    for checker, transformer in _checker_transformer_pairs:
+        if checker(request.headers): return transformer
+    else:
+        return _identity
+
+
 def body(r1, r2):
-    return r1.body == r2.body
+    transformer = _get_transformer(r1)
+    r2_transformer = _get_transformer(r2)
+    if transformer != r2_transformer:
+        transformer = _identity
+    return transformer(read_body(r1)) == transformer(read_body(r2))
 
 
 def headers(r1, r2):
     return r1.headers == r2.headers
 
 
-def _log_matches(matches):
+def _log_matches(r1, r2, matches):
     differences = [m for m in matches if not m[0]]
     if differences:
         log.debug(
-            'Requests differ according to the following matchers: ' +
-            str(differences)
+            "Requests {0} and {1} differ according to "
+            "the following matchers: {2}".format(r1, r2, differences)
         )
 
 
 def requests_match(r1, r2, matchers):
     matches = [(m(r1, r2), m) for m in matchers]
-    _log_matches(matches)
+    _log_matches(r1, r2, matches)
     return all([m[0] for m in matches])

vcr/migration.py

@@ -58,7 +58,7 @@ PARTS = [
 def build_uri(**parts):
     port = parts['port']
     scheme = parts['protocol']
-    default_port = {'https': 433, 'http': 80}[scheme]
+    default_port = {'https': 443, 'http': 80}[scheme]
     parts['port'] = ':{0}'.format(port) if port != default_port else ''
     return "{protocol}://{host}{port}{path}".format(**parts)
 

vcr/patch.py

@@ -2,9 +2,7 @@
 import functools
 import itertools
 
-import contextlib2
-import mock
-
+from .compat import contextlib, mock
 from .stubs import VCRHTTPConnection, VCRHTTPSConnection
 from six.moves import http_client as httplib
 
@@ -54,12 +52,33 @@ else:
     _CertValidatingHTTPSConnection = boto.https_connection.CertValidatingHTTPSConnection
 
 
+# Try to save the original types for Tornado
+try:
+    import tornado.simple_httpclient
+except ImportError:  # pragma: no cover
+    pass
+else:
+    _SimpleAsyncHTTPClient_fetch_impl = \
+            tornado.simple_httpclient.SimpleAsyncHTTPClient.fetch_impl
+
+
+try:
+    import tornado.curl_httpclient
+except ImportError:  # pragma: no cover
+    pass
+else:
+    _CurlAsyncHTTPClient_fetch_impl = \
+            tornado.curl_httpclient.CurlAsyncHTTPClient.fetch_impl
+
+
 class CassettePatcherBuilder(object):
 
     def _build_patchers_from_mock_triples_decorator(function):
         @functools.wraps(function)
         def wrapped(self, *args, **kwargs):
-            return self._build_patchers_from_mock_triples(function(self, *args, **kwargs))
+            return self._build_patchers_from_mock_triples(
+                function(self, *args, **kwargs)
+            )
         return wrapped
 
     def __init__(self, cassette):
@@ -67,9 +86,13 @@ class CassettePatcherBuilder(object):
         self._class_to_cassette_subclass = {}
 
     def build(self):
-        return itertools.chain(self._httplib(), self._requests(),
-                               self._urllib3(), self._httplib2(),
-                               self._boto())
+        return itertools.chain(
+            self._httplib(), self._requests(), self._urllib3(),
+            self._httplib2(), self._boto(), self._tornado(),
+            self._build_patchers_from_mock_triples(
+                self._cassette.custom_patches
+            ),
+        )
 
     def _build_patchers_from_mock_triples(self, mock_triples):
         for args in mock_triples:
@@ -86,6 +109,23 @@ class CassettePatcherBuilder(object):
                                      replacement_class))
 
     def _recursively_apply_get_cassette_subclass(self, replacement_dict_or_obj):
+        """One of the subtleties of this class is that it does not directly
+        replace HTTPSConnection with `VCRRequestsHTTPSConnection`, but a
+        subclass of the aforementioned class that has the `cassette`
+        class attribute assigned to `self._cassette`. This behavior is
+        necessary to properly support nested cassette contexts.
+
+        This function exists to ensure that we use the same class
+        object (reference) to patch everything that replaces
+        VCRRequestHTTP[S]Connection, but that we can talk about
+        patching them with the raw references instead, and without
+        worrying about exactly where the subclass with the relevant
+        value for `cassette` is first created.
+
+        The function is recursive because it looks in to dictionaries
+        and replaces class values at any depth with the subclass
+        described in the previous paragraph.
+        """
         if isinstance(replacement_dict_or_obj, dict):
             for key, replacement_obj  in replacement_dict_or_obj.items():
                 replacement_obj = self._recursively_apply_get_cassette_subclass(
@@ -122,38 +162,8 @@ class CassettePatcherBuilder(object):
             import requests.packages.urllib3.connectionpool as cpool
         except ImportError:  # pragma: no cover
             return ()
-        from .stubs.requests_stubs import VCRRequestsHTTPConnection, VCRRequestsHTTPSConnection
-        http_connection_remover = ConnectionRemover(
-            self._get_cassette_subclass(VCRRequestsHTTPConnection)
-        )
-        https_connection_remover = ConnectionRemover(
-            self._get_cassette_subclass(VCRRequestsHTTPSConnection)
-        )
-        mock_triples = (
-            (cpool, 'VerifiedHTTPSConnection', VCRRequestsHTTPSConnection),
-            (cpool, 'VerifiedHTTPSConnection', VCRRequestsHTTPSConnection),
-            (cpool, 'HTTPConnection', VCRRequestsHTTPConnection),
-            (cpool, 'HTTPSConnection', VCRRequestsHTTPSConnection),
-            (cpool.HTTPConnectionPool, 'ConnectionCls', VCRRequestsHTTPConnection),
-            (cpool.HTTPSConnectionPool, 'ConnectionCls', VCRRequestsHTTPSConnection),
-        )
-        # These handle making sure that sessions only use the
-        # connections of the appropriate type.
-        mock_triples += ((cpool.HTTPConnectionPool, '_get_conn',
-                          self._patched_get_conn(cpool.HTTPConnectionPool,
-                                                 lambda : cpool.HTTPConnection)),
-                         (cpool.HTTPSConnectionPool, '_get_conn',
-                          self._patched_get_conn(cpool.HTTPSConnectionPool,
-                                                 lambda : cpool.HTTPSConnection)),
-                         (cpool.HTTPConnectionPool, '_new_conn',
-                          self._patched_new_conn(cpool.HTTPConnectionPool,
-                                                 http_connection_remover)),
-                         (cpool.HTTPSConnectionPool, '_new_conn',
-                          self._patched_new_conn(cpool.HTTPSConnectionPool,
-                                                 https_connection_remover)))
-
-        return itertools.chain(self._build_patchers_from_mock_triples(mock_triples),
-                               (http_connection_remover, https_connection_remover))
+        from .stubs import requests_stubs
+        return self._urllib3_patchers(cpool, requests_stubs)
 
     def _patched_get_conn(self, connection_pool_class, connection_class_getter):
         get_conn = connection_pool_class._get_conn
@@ -162,6 +172,12 @@ class CassettePatcherBuilder(object):
             connection = get_conn(pool, timeout)
             connection_class = pool.ConnectionCls if hasattr(pool, 'ConnectionCls') \
                                else connection_class_getter()
+            # We need to make sure that we are actually providing a
+            # patched version of the connection class. This might not
+            # always be the case because the pool keeps previously
+            # used connections (which might actually be of a different
+            # class) around. This while loop will terminate because
+            # eventually the pool will run out of connections.
             while not isinstance(connection, connection_class):
                 connection = get_conn(pool, timeout)
             return connection
@@ -176,17 +192,13 @@ class CassettePatcherBuilder(object):
             return new_connection
         return patched_new_conn
 
-    @_build_patchers_from_mock_triples_decorator
     def _urllib3(self):
         try:
             import urllib3.connectionpool as cpool
         except ImportError:  # pragma: no cover
-            pass
-        else:
-            from .stubs.urllib3_stubs import VCRVerifiedHTTPSConnection
-
-            yield cpool, 'VerifiedHTTPSConnection', VCRVerifiedHTTPSConnection
-            yield cpool, 'HTTPConnection', VCRHTTPConnection
+            return ()
+        from .stubs import urllib3_stubs
+        return self._urllib3_patchers(cpool, urllib3_stubs)
 
     @_build_patchers_from_mock_triples_decorator
     def _httplib2(self):
@@ -213,6 +225,65 @@ class CassettePatcherBuilder(object):
             from .stubs.boto_stubs import VCRCertValidatingHTTPSConnection
             yield cpool, 'CertValidatingHTTPSConnection', VCRCertValidatingHTTPSConnection
 
+    @_build_patchers_from_mock_triples_decorator
+    def _tornado(self):
+        try:
+            import tornado.simple_httpclient as simple
+        except ImportError:  # pragma: no cover
+            pass
+        else:
+            from .stubs.tornado_stubs import vcr_fetch_impl
+
+            new_fetch_impl = vcr_fetch_impl(
+                self._cassette, _SimpleAsyncHTTPClient_fetch_impl
+            )
+            yield simple.SimpleAsyncHTTPClient, 'fetch_impl', new_fetch_impl
+        try:
+            import tornado.curl_httpclient as curl
+        except ImportError:  # pragma: no cover
+            pass
+        else:
+            from .stubs.tornado_stubs import vcr_fetch_impl
+
+            new_fetch_impl = vcr_fetch_impl(
+                self._cassette, _CurlAsyncHTTPClient_fetch_impl
+            )
+            yield curl.CurlAsyncHTTPClient, 'fetch_impl', new_fetch_impl
+
+    def _urllib3_patchers(self, cpool, stubs):
+        http_connection_remover = ConnectionRemover(
+            self._get_cassette_subclass(stubs.VCRRequestsHTTPConnection)
+        )
+        https_connection_remover = ConnectionRemover(
+            self._get_cassette_subclass(stubs.VCRRequestsHTTPSConnection)
+        )
+        mock_triples = (
+            (cpool, 'VerifiedHTTPSConnection', stubs.VCRRequestsHTTPSConnection),
+            (cpool, 'VerifiedHTTPSConnection', stubs.VCRRequestsHTTPSConnection),
+            (cpool, 'HTTPConnection', stubs.VCRRequestsHTTPConnection),
+            (cpool, 'HTTPSConnection', stubs.VCRRequestsHTTPSConnection),
+            (cpool, 'is_connection_dropped', mock.Mock(return_value=False)),  # Needed on Windows only
+            (cpool.HTTPConnectionPool, 'ConnectionCls', stubs.VCRRequestsHTTPConnection),
+            (cpool.HTTPSConnectionPool, 'ConnectionCls', stubs.VCRRequestsHTTPSConnection),
+        )
+        # These handle making sure that sessions only use the
+        # connections of the appropriate type.
+        mock_triples += ((cpool.HTTPConnectionPool, '_get_conn',
+                          self._patched_get_conn(cpool.HTTPConnectionPool,
+                                                 lambda : cpool.HTTPConnection)),
+                         (cpool.HTTPSConnectionPool, '_get_conn',
+                          self._patched_get_conn(cpool.HTTPSConnectionPool,
+                                                 lambda : cpool.HTTPSConnection)),
+                         (cpool.HTTPConnectionPool, '_new_conn',
+                          self._patched_new_conn(cpool.HTTPConnectionPool,
+                                                 http_connection_remover)),
+                         (cpool.HTTPSConnectionPool, '_new_conn',
+                          self._patched_new_conn(cpool.HTTPSConnectionPool,
+                                                 https_connection_remover)))
+
+        return itertools.chain(self._build_patchers_from_mock_triples(mock_triples),
+                               (http_connection_remover, https_connection_remover))
+
 
 class ConnectionRemover(object):
 
@@ -234,7 +305,7 @@ class ConnectionRemover(object):
     def __exit__(self, *args):
         for pool, connections in self._connection_pool_to_connections.items():
             readd_connections = []
-            while not pool.pool.empty() and connections:
+            while pool.pool and not pool.pool.empty() and connections:
                 connection = pool.pool.get()
                 if isinstance(connection, self._connection_class):
                     connections.remove(connection)
@@ -273,8 +344,9 @@ def reset_patchers():
         yield mock.patch.object(cpool, 'VerifiedHTTPSConnection', _VerifiedHTTPSConnection)
         yield mock.patch.object(cpool, 'HTTPConnection', _HTTPConnection)
         yield mock.patch.object(cpool, 'HTTPSConnection', _HTTPSConnection)
-        yield mock.patch.object(cpool.HTTPConnectionPool, 'ConnectionCls', _HTTPConnection)
-        yield mock.patch.object(cpool.HTTPSConnectionPool, 'ConnectionCls', _HTTPSConnection)
+        if hasattr(cpool.HTTPConnectionPool, 'ConnectionCls'):
+            yield mock.patch.object(cpool.HTTPConnectionPool, 'ConnectionCls', _HTTPConnection)
+            yield mock.patch.object(cpool.HTTPSConnectionPool, 'ConnectionCls', _HTTPSConnection)
 
     try:
         import httplib2 as cpool
@@ -293,10 +365,31 @@ def reset_patchers():
         yield mock.patch.object(cpool, 'CertValidatingHTTPSConnection',
                                 _CertValidatingHTTPSConnection)
 
+    try:
+        import tornado.simple_httpclient as simple
+    except ImportError:  # pragma: no cover
+        pass
+    else:
+        yield mock.patch.object(
+            simple.SimpleAsyncHTTPClient,
+            'fetch_impl',
+            _SimpleAsyncHTTPClient_fetch_impl,
+        )
+    try:
+        import tornado.curl_httpclient as curl
+    except ImportError:  # pragma: no cover
+        pass
+    else:
+        yield mock.patch.object(
+            curl.CurlAsyncHTTPClient,
+            'fetch_impl', 
+            _CurlAsyncHTTPClient_fetch_impl,
+        )
 
-@contextlib2.contextmanager
+
+@contextlib.contextmanager
 def force_reset():
-    with contextlib2.ExitStack() as exit_stack:
+    with contextlib.ExitStack() as exit_stack:
         for patcher in reset_patchers():
             exit_stack.enter_context(patcher)
         yield

vcr/request.py

@@ -1,42 +1,49 @@
+import warnings
+from six import BytesIO, text_type
 from six.moves.urllib.parse import urlparse, parse_qsl
+from .util import CaseInsensitiveDict
 
 
 class Request(object):
     """
-    VCR's  representation of a request.
-
-    There is a weird quirk in HTTP.  You can send the same header twice.  For
-    this reason, headers are represented by a dict, with lists as the values.
-    However, it appears that HTTPlib is completely incapable of sending the
-    same header twice.  This puts me in a weird position: I want to be able to
-    accurately represent HTTP headers in cassettes, but I don't want the extra
-    step of always having to do [0] in the general case, i.e.
-    request.headers['key'][0]
-
-    In addition, some servers sometimes send the same header more than once,
-    and httplib *can* deal with this situation.
-
-    Futhermore, I wanted to keep the request and response cassette format as
-    similar as possible.
-
-    For this reason, in cassettes I keep a dict with lists as keys, but once
-    deserialized into VCR, I keep them as plain, naked dicts.
+    VCR's representation of a request.
     """
 
     def __init__(self, method, uri, body, headers):
         self.method = method
         self.uri = uri
-        self.body = body
-        self.headers = {}
-        for key in headers:
-            self.add_header(key, headers[key])
+        self._was_file = hasattr(body, 'read')
+        if self._was_file:
+            self.body = body.read()
+        else:
+            self.body = body
+        self.headers = headers
+
+    @property
+    def headers(self):
+        return self._headers
+
+    @headers.setter
+    def headers(self, value):
+        if not isinstance(value, HeadersDict):
+            value = HeadersDict(value)
+        self._headers = value
+
+    @property
+    def body(self):
+        return BytesIO(self._body) if self._was_file else self._body
+
+    @body.setter
+    def body(self, value):
+        if isinstance(value, text_type):
+            value = value.encode('utf-8')
+        self._body = value
 
     def add_header(self, key, value):
-        # see class docstring for an explanation
-        if isinstance(value, (tuple, list)):
-            self.headers[key] = value[0]
-        else:
-            self.headers[key] = value
+        warnings.warn("Request.add_header is deprecated. "
+                      "Please assign to request.headers instead.",
+                      DeprecationWarning)
+        self.headers[key] = value
 
     @property
     def scheme(self):
@@ -51,7 +58,7 @@ class Request(object):
         parse_uri = urlparse(self.uri)
         port = parse_uri.port
         if port is None:
-            port = {'https': 433, 'http': 80}[parse_uri.scheme]
+            port = {'https': 443, 'http': 80}[parse_uri.scheme]
         return port
 
     @property
@@ -90,3 +97,35 @@ class Request(object):
     @classmethod
     def _from_dict(cls, dct):
         return Request(**dct)
+
+
+class HeadersDict(CaseInsensitiveDict):
+    """
+    There is a weird quirk in HTTP.  You can send the same header twice.  For
+    this reason, headers are represented by a dict, with lists as the values.
+    However, it appears that HTTPlib is completely incapable of sending the
+    same header twice.  This puts me in a weird position: I want to be able to
+    accurately represent HTTP headers in cassettes, but I don't want the extra
+    step of always having to do [0] in the general case, i.e.
+    request.headers['key'][0]
+
+    In addition, some servers sometimes send the same header more than once,
+    and httplib *can* deal with this situation.
+
+    Futhermore, I wanted to keep the request and response cassette format as
+    similar as possible.
+
+    For this reason, in cassettes I keep a dict with lists as keys, but once
+    deserialized into VCR, I keep them as plain, naked dicts.
+    """
+
+    def __setitem__(self, key, value):
+        if isinstance(value, (tuple, list)):
+            value = value[0]
+
+        # Preserve the case from the first time this key was set.
+        old = self._store.get(key.lower())
+        if old:
+            key = old[0]
+
+        super(HeadersDict, self).__setitem__(key, value)

vcr/serializers/jsonserializer.py

@@ -11,10 +11,14 @@ def deserialize(cassette_string):
 def serialize(cassette_dict):
     try:
         return json.dumps(cassette_dict, indent=4)
-    except UnicodeDecodeError:
+    except UnicodeDecodeError as original:
         raise UnicodeDecodeError(
-            "Error serializing cassette to JSON. ",
-            "Does this HTTP interaction contain binary data? ",
-            "If so, use a different serializer (like the yaml serializer) ",
-            "for this request"
+            original.encoding,
+            b"Error serializing cassette to JSON",
+            original.start,
+            original.end,
+            original.args[-1] +
+            ("Does this HTTP interaction contain binary data? "
+             "If so, use a different serializer (like the yaml serializer) "
+             "for this request?")
         )

vcr/stubs/__init__.py

@@ -9,7 +9,6 @@ import six
 from six.moves.http_client import (
     HTTPConnection,
     HTTPSConnection,
-    HTTPMessage,
     HTTPResponse,
 )
 from six import BytesIO
@@ -76,7 +75,15 @@ class VCRHTTPResponse(HTTPResponse):
         self._closed = False
 
         headers = self.recorded_response['headers']
-        self.msg = parse_headers(headers)
+        # Since we are loading a response that has already been serialized, our
+        # response is no longer chunked.  That means we don't want any
+        # libraries trying to process a chunked response.  By removing the
+        # transfer-encoding: chunked header, this should cause the downstream
+        # libraries to process this as a non-chunked response.
+        te_key = [h for h in headers.keys() if h.upper() == 'TRANSFER-ENCODING']
+        if te_key:
+            del headers[te_key[0]]
+        self.headers = self.msg = parse_headers(headers)
 
         self.length = compat.get_header(self.msg, 'content-length') or None
 
@@ -128,7 +135,7 @@ class VCRConnection(object):
         Returns empty string for the default port and ':port' otherwise
         """
         port = self.real_connection.port
-        default_port = {'https': 433, 'http': 80}[self._protocol]
+        default_port = {'https': 443, 'http': 80}[self._protocol]
         return ':{0}'.format(port) if port != default_port else ''
 
     def _uri(self, url):
@@ -180,8 +187,7 @@ class VCRConnection(object):
         log.debug('Got {0}'.format(self._vcr_request))
 
     def putheader(self, header, *values):
-        for value in values:
-            self._vcr_request.add_header(header, value)
+        self._vcr_request.headers[header] = values
 
     def send(self, data):
         '''
@@ -196,15 +202,16 @@ class VCRConnection(object):
         # no need to check that here.
         self.real_connection.close()
 
-    def endheaders(self, *args, **kwargs):
+    def endheaders(self, message_body=None):
         """
-        Normally, this would atually send the request to the server.
+        Normally, this would actually send the request to the server.
         We are not sending the request until getting the response,
-        so bypass this method for now.
+        so bypass this part and just append the message body, if any.
         """
-        pass
+        if message_body is not None:
+            self._vcr_request.body = message_body
 
-    def getresponse(self, _=False):
+    def getresponse(self, _=False, **kwargs):
         '''Retrieve the response'''
         # Check to see if the cassette has a response for this request. If so,
         # then return it
@@ -217,11 +224,29 @@ class VCRConnection(object):
             response = self.cassette.play_response(self._vcr_request)
             return VCRHTTPResponse(response)
         else:
-            if self.cassette.write_protected and self.cassette._filter_request(self._vcr_request):
+            if self.cassette.write_protected and self.cassette.filter_request(
+                self._vcr_request
+            ):
+                most_similar_request = None
+                failing_matchers = None
+                most_similar_request_info = None
+                try:
+                    most_similar_request_info = self.cassette.similar_requests(self._vcr_request)
+                    most_similar_request = most_similar_request_info[0][0]
+                    failing_matchers = self.cassette.failing_matchers(
+                        self._vcr_request, most_similar_request
+                    )
+                except Exception as err:
+                    print "XXXX {0}".format(err)
+                    import ipdb; ipdb.set_trace()
                 raise CannotOverwriteExistingCassetteException(
+                    "No match for the request (%r) was found. "
                     "Can't overwrite existing cassette (%r) in "
-                    "your current record mode (%r)."
-                    % (self.cassette._path, self.cassette.record_mode)
+                    "your current record mode (%r). Most similar request was (%r). "
+                    "It differed from the request according to (%r). \n\n\n(%r)"
+                    % (self._vcr_request, self.cassette._path,
+                       self.cassette.record_mode, most_similar_request,
+                       failing_matchers, most_similar_request_info)
                 )
 
             # Otherwise, we should send the request, then get the response
@@ -232,12 +257,16 @@ class VCRConnection(object):
                     self._vcr_request
                 )
             )
-            self.real_connection.request(
-                method=self._vcr_request.method,
-                url=self._url(self._vcr_request.uri),
-                body=self._vcr_request.body,
-                headers=self._vcr_request.headers,
-            )
+            # This is imported here to avoid circular import.
+            # TODO(@IvanMalison): Refactor to allow normal import.
+            from vcr.patch import force_reset
+            with force_reset():
+                self.real_connection.request(
+                    method=self._vcr_request.method,
+                    url=self._url(self._vcr_request.uri),
+                    body=self._vcr_request.body,
+                    headers=self._vcr_request.headers,
+                )
 
             # get the response
             response = self.real_connection.getresponse()
@@ -290,7 +319,7 @@ class VCRConnection(object):
 
     def __init__(self, *args, **kwargs):
         if six.PY3:
-            kwargs.pop('strict', None) # apparently this is gone in py3
+            kwargs.pop('strict', None)  # apparently this is gone in py3
 
         # need to temporarily reset here because the real connection
         # inherits from the thing that we are mocking out.  Take out
@@ -299,6 +328,27 @@ class VCRConnection(object):
         with force_reset():
             self.real_connection = self._baseclass(*args, **kwargs)
 
+    def __setattr__(self, name, value):
+        """
+        We need to define this because any attributes that are set on the
+        VCRConnection need to be propogated to the real connection.
+
+        For example, urllib3 will set certain attributes on the connection,
+        such as 'ssl_version'. These attributes need to get set on the real
+        connection to have the correct and expected behavior.
+
+        TODO: Separately setting the attribute on the two instances is not
+        ideal. We should switch to a proxying implementation.
+        """
+        try:
+            setattr(self.real_connection, name, value)
+        except AttributeError:
+             # raised if real_connection has not been set yet, such as when
+             # we're setting the real_connection itself for the first time
+            pass
+
+        super(VCRConnection, self).__setattr__(name, value)
+
 
 class VCRHTTPConnection(VCRConnection):
     '''A Mocked class for HTTP requests'''
@@ -310,3 +360,4 @@ class VCRHTTPSConnection(VCRConnection):
     '''A Mocked class for HTTPS requests'''
     _baseclass = HTTPSConnection
     _protocol = 'https'
+    is_verified = True

vcr/stubs/tornado_stubs.py

@@ -0,0 +1,107 @@
+'''Stubs for tornado HTTP clients'''
+from __future__ import absolute_import
+
+import functools
+from six import BytesIO
+
+from tornado import httputil
+from tornado.httpclient import HTTPResponse
+
+from vcr.errors import CannotOverwriteExistingCassetteException
+from vcr.request import Request
+
+
+def vcr_fetch_impl(cassette, real_fetch_impl):
+
+    @functools.wraps(real_fetch_impl)
+    def new_fetch_impl(self, request, callback):
+        headers = request.headers.copy()
+        if request.user_agent:
+            headers.setdefault('User-Agent', request.user_agent)
+
+        # TODO body_producer, header_callback, and streaming_callback are not
+        # yet supported.
+
+        unsupported_call = (
+            request.body_producer is not None or
+            request.header_callback is not None or
+            request.streaming_callback is not None
+        )
+        if unsupported_call:
+            response = HTTPResponse(
+                request,
+                599,
+                error=Exception(
+                    "The request (%s) uses AsyncHTTPClient functionality "
+                    "that is not yet supported by VCR.py. Please make the "
+                    "request outside a VCR.py context." % repr(request)
+                ),
+                request_time=self.io_loop.time() - request.start_time,
+            )
+            return callback(response)
+
+        vcr_request = Request(
+            request.method,
+            request.url,
+            request.body,
+            headers,
+        )
+
+        if cassette.can_play_response_for(vcr_request):
+            vcr_response = cassette.play_response(vcr_request)
+            headers = httputil.HTTPHeaders()
+
+            recorded_headers = vcr_response['headers']
+            if isinstance(recorded_headers, dict):
+                recorded_headers = recorded_headers.items()
+            for k, vs in recorded_headers:
+                for v in vs:
+                    headers.add(k, v)
+            response = HTTPResponse(
+                request,
+                code=vcr_response['status']['code'],
+                reason=vcr_response['status']['message'],
+                headers=headers,
+                buffer=BytesIO(vcr_response['body']['string']),
+                effective_url=vcr_response.get('url'),
+                request_time=self.io_loop.time() - request.start_time,
+            )
+            return callback(response)
+        else:
+            if cassette.write_protected and cassette.filter_request(
+                vcr_request
+            ):
+                response = HTTPResponse(
+                    request,
+                    599,
+                    error=CannotOverwriteExistingCassetteException(
+                        "No match for the request (%r) was found. "
+                        "Can't overwrite existing cassette (%r) in "
+                        "your current record mode (%r)."
+                        % (vcr_request, cassette._path, cassette.record_mode)
+                    ),
+                    request_time=self.io_loop.time() - request.start_time,
+                )
+                return callback(response)
+
+            def new_callback(response):
+                headers = [
+                    (k, response.headers.get_list(k))
+                    for k in response.headers.keys()
+                ]
+
+                vcr_response = {
+                    'status': {
+                        'code': response.code,
+                        'message': response.reason,
+                    },
+                    'headers': headers,
+                    'body': {'string': response.body},
+                    'url': response.effective_url,
+                }
+                cassette.append(vcr_request, vcr_response)
+                return callback(response)
+
+            real_fetch_impl(self, request, new_callback)
+
+    return new_fetch_impl

vcr/stubs/urllib3_stubs.py

@@ -1,8 +1,13 @@
 '''Stubs for urllib3'''
 
-from urllib3.connectionpool import VerifiedHTTPSConnection
-from ..stubs import VCRHTTPSConnection
+from urllib3.connectionpool import HTTPConnection, VerifiedHTTPSConnection
+from ..stubs import VCRHTTPConnection, VCRHTTPSConnection
 
+# urllib3 defines its own HTTPConnection classes. It includes some polyfills
+# for newer features missing in older pythons.
 
-class VCRVerifiedHTTPSConnection(VCRHTTPSConnection, VerifiedHTTPSConnection):
+class VCRRequestsHTTPConnection(VCRHTTPConnection, HTTPConnection):
+    _baseclass = HTTPConnection
+
+class VCRRequestsHTTPSConnection(VCRHTTPSConnection, VerifiedHTTPSConnection):
     _baseclass = VerifiedHTTPSConnection

vcr/util.py

@@ -0,0 +1,122 @@
+import collections
+import types
+
+
+# Shamelessly stolen from https://github.com/kennethreitz/requests/blob/master/requests/structures.py
+class CaseInsensitiveDict(collections.MutableMapping):
+    """
+    A case-insensitive ``dict``-like object.
+    Implements all methods and operations of
+    ``collections.MutableMapping`` as well as dict's ``copy``. Also
+    provides ``lower_items``.
+    All keys are expected to be strings. The structure remembers the
+    case of the last key to be set, and ``iter(instance)``,
+    ``keys()``, ``items()``, ``iterkeys()``, and ``iteritems()``
+    will contain case-sensitive keys. However, querying and contains
+    testing is case insensitive::
+        cid = CaseInsensitiveDict()
+        cid['Accept'] = 'application/json'
+        cid['aCCEPT'] == 'application/json'  # True
+        list(cid) == ['Accept']  # True
+    For example, ``headers['content-encoding']`` will return the
+    value of a ``'Content-Encoding'`` response header, regardless
+    of how the header name was originally stored.
+    If the constructor, ``.update``, or equality comparison
+    operations are given keys that have equal ``.lower()``s, the
+    behavior is undefined.
+    """
+    def __init__(self, data=None, **kwargs):
+        self._store = dict()
+        if data is None:
+            data = {}
+        self.update(data, **kwargs)
+
+    def __setitem__(self, key, value):
+        # Use the lowercased key for lookups, but store the actual
+        # key alongside the value.
+        self._store[key.lower()] = (key, value)
+
+    def __getitem__(self, key):
+        return self._store[key.lower()][1]
+
+    def __delitem__(self, key):
+        del self._store[key.lower()]
+
+    def __iter__(self):
+        return (casedkey for casedkey, mappedvalue in self._store.values())
+
+    def __len__(self):
+        return len(self._store)
+
+    def lower_items(self):
+        """Like iteritems(), but with all lowercase keys."""
+        return (
+            (lowerkey, keyval[1])
+            for (lowerkey, keyval)
+            in self._store.items()
+        )
+
+    def __eq__(self, other):
+        if isinstance(other, collections.Mapping):
+            other = CaseInsensitiveDict(other)
+        else:
+            return NotImplemented
+        # Compare insensitively
+        return dict(self.lower_items()) == dict(other.lower_items())
+
+    # Copy is required
+    def copy(self):
+        return CaseInsensitiveDict(self._store.values())
+
+    def __repr__(self):
+        return str(dict(self.items()))
+
+def partition_dict(predicate, dictionary):
+    true_dict = {}
+    false_dict = {}
+    for key, value in dictionary.items():
+        this_dict = true_dict if predicate(key, value) else false_dict
+        this_dict[key] = value
+    return true_dict, false_dict
+
+
+def compose(*functions):
+    def composed(incoming):
+        res = incoming
+        for function in reversed(functions):
+            if function:
+                res = function(res)
+        return res
+    return composed
+
+def read_body(request):
+    if hasattr(request.body, 'read'):
+        return request.body.read()
+    return request.body
+
+
+def auto_decorate(
+    decorator,
+    predicate=lambda name, value: isinstance(value, types.FunctionType)
+):
+    def maybe_decorate(attribute, value):
+        if predicate(attribute, value):
+            value = decorator(value)
+        return value
+
+    class DecorateAll(type):
+
+        def __setattr__(cls, attribute, value):
+            return super(DecorateAll, cls).__setattr__(
+                attribute, maybe_decorate(attribute, value)
+            )
+
+        def __new__(cls, name, bases, attributes_dict):
+            new_attributes_dict = dict(
+                (attribute, maybe_decorate(attribute, value))
+                for attribute, value in attributes_dict.items()
+            )
+            return super(DecorateAll, cls).__new__(
+                cls, name, bases, new_attributes_dict
+            )
+    return DecorateAll