* fix typo in pytest.mark.xskip
Change xskip by skipif marker as xskip is an unknown pytest marker.
* fix FileModeWarning
This fix the following warning:
FileModeWarning: Requests has determined the content-length for this request using the binary size of the file: however, the file has been opened in text mode (i.e. without the 'b' flag in the mode). This may lead to an incorrect content-length. In Requests 3.0, support will be removed for files in text mode.
* fix waring "calling yaml.load() without Loader=... is deprecated"
This fix the following warning:
YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
* fix collections.abc deprecation warning in python 3.7.
* update Flask dependency in order to get rid of the Request.is_xhr warning
This fix the following warning:
DeprecationWarning: 'Request.is_xhr' is deprecated as of version 0.13 and will be removed in version 1.0. The 'X-Requested-With' header is not standard and is unreliable. You may be able to use 'accept_mimetypes' instead.
The 'CannotOverwriteExistingCassetteException' exception now takes two kwargs, cassette and failed requests, in order to get the request(s) in the cassettes with the less differences and put those details in the exception message.
In order to use the new assert mechanism that returns explicit assertion failure message, all the default matchers does not return a boolean, but only do an assert statement with a basic assertion message (value_1 != value_2).
The requests_match function has been refactored to use the 'get_matchers_results' function in order to have explicit failures that are logged if any.
Many unit tests have been changed as the matchers does not return a boolean value anymore.
Note: Only the matchers "body" and "raw_body" does not have an assertion message, the body values might be big and not useful to be display to spot the differences.
The function returns two list:
- the first one is the list of matchers names that have succeeded.
- the second is a list of tuples with the failed matchers names and the related assertion message like this ("matcher_name", "assertion_message").
If the second list is empty, it means that all the matchers have passed.
A matcher can now return other results than a boolean :
- An AssertionError exception meaning that the matcher failed, with the exception we get the assertion failure message.
- None, in case we do an assert in the matcher, meaning that the assertion has passed, the matcher is considered as a success then.
- Boolean that indicates if a matcher failed or not. If there is no match, a boolean does not give any clue what it is the differences compared to the assertion.
When I ran the test suite on macOSX, I had some issues regarding SSL configuration, I have documented the error I encounter and the solution to deal with it.
The error we have : SSLError: hostname '127.0.0.1' doesn't match either of 'localhost', '127.0.0.1'
This is fixed by adding the `ipaddress` dependency in the tox ini.
In versions of Python from 3.8 and forward, importing Mapping and
MutableMapping from the collections module will no longer work. This
change will try to import from the collections.abc module, which was
added in Python 3.3, and fall back to the collections module on older
versions of Python.
