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03c22d79dd
This support will let you select one of four different behaviors for VCR's cassettes. Closes #23
87 lines
3.2 KiB
Python
87 lines
3.2 KiB
Python
import os
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import urllib2
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import pytest
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import vcr
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def test_once_record_mode(tmpdir):
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testfile = str(tmpdir.join('recordmode.yml'))
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with vcr.use_cassette(testfile, record_mode="once"):
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# cassette file doesn't exist, so create.
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response = urllib2.urlopen('http://httpbin.org/').read()
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with vcr.use_cassette(testfile, record_mode="once") as cass:
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# make the same request again
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response = urllib2.urlopen('http://httpbin.org/').read()
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# the first time, it's played from the cassette.
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# but, try to access something else from the same cassette, and an
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# exception is raised.
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with pytest.raises(Exception):
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response = urllib2.urlopen('http://httpbin.org/get').read()
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def test_new_episodes_record_mode(tmpdir):
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testfile = str(tmpdir.join('recordmode.yml'))
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with vcr.use_cassette(testfile, record_mode="new_episodes"):
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# cassette file doesn't exist, so create.
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response = urllib2.urlopen('http://httpbin.org/').read()
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with vcr.use_cassette(testfile, record_mode="new_episodes") as cass:
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# make the same request again
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response = urllib2.urlopen('http://httpbin.org/').read()
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# in the "new_episodes" record mode, we can add more requests to
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# a cassette without repurcussions.
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response = urllib2.urlopen('http://httpbin.org/get').read()
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# the first interaction was not re-recorded, but the second was added
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assert cass.play_count == 1
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def test_all_record_mode(tmpdir):
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testfile = str(tmpdir.join('recordmode.yml'))
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with vcr.use_cassette(testfile, record_mode="all"):
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# cassette file doesn't exist, so create.
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response = urllib2.urlopen('http://httpbin.org/').read()
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with vcr.use_cassette(testfile, record_mode="all") as cass:
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# make the same request again
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response = urllib2.urlopen('http://httpbin.org/').read()
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# in the "all" record mode, we can add more requests to
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# a cassette without repurcussions.
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response = urllib2.urlopen('http://httpbin.org/get').read()
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# The cassette was never actually played, even though it existed.
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# that's because, in "all" mode, the requests all go directly to
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# the source and bypass the cassette.
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assert cass.play_count == 0
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def test_none_record_mode(tmpdir):
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# Cassette file doesn't exist, yet we are trying to make a request.
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# raise hell.
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testfile = str(tmpdir.join('recordmode.yml'))
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with vcr.use_cassette(testfile, record_mode="none"):
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with pytest.raises(Exception):
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response = urllib2.urlopen('http://httpbin.org/').read()
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def test_none_record_mode_with_existing_cassette(tmpdir):
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# create a cassette file
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testfile = str(tmpdir.join('recordmode.yml'))
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with vcr.use_cassette(testfile, record_mode="all"):
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response = urllib2.urlopen('http://httpbin.org/').read()
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# play from cassette file
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with vcr.use_cassette(testfile, record_mode="none") as cass:
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response = urllib2.urlopen('http://httpbin.org/').read()
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assert cass.play_count == 1
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# but if I try to hit the net, raise an exception.
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with pytest.raises(Exception):
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response = urllib2.urlopen('http://httpbin.org/get').read()
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