58 lines
1.6 KiB
Plaintext
58 lines
1.6 KiB
Plaintext
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A sesssion-fixture which can look at all collected tests
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----------------------------------------------------------------
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A session-scoped fixture effectively has access to all
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collected test items. Here is an example of a fixture
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function which walks all collected tests and looks
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if their test class defines a ``callme`` method and
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calls it::
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# content of conftest.py
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import pytest
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@pytest.fixture(scope="session", autouse=True)
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def callattr_ahead_of_alltests(request):
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print "callattr_ahead_of_alltests called"
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seen = set([None])
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session = request.node
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for item in session.items:
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instance = item.getparent(pytest.Instance)
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if instance not in seen:
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if hasattr(instance.obj, "callme"):
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instance.obj.callme()
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seen.add(instance)
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test classes may now define a ``callme`` method which
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will be called ahead of running any tests::
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# content of test_module.py
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class TestHello:
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def callme(self):
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print "callme called!"
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def test_method1(self):
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print "test_method1 called"
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def test_method2(self):
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print "test_method1 called"
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class TestOther:
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def callme(self):
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print "callme other called"
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def test_other(self):
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print "test other"
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If you run this without output capturing::
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$ py.test -q -s test_module.py
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...
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callattr_ahead_of_alltests called
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callme called!
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callme other called
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test_method1 called
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test_method1 called
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test other
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