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Merge commit 'ec62a3c9e47c3b5b07aa1656815145ffa2882a09' into merge-master

This commit is contained in:
Ronny Pfannschmidt 2016-05-13 17:40:14 +02:00
parent 6cc56b4a1b ec62a3c9e4
commit 4bde70d060
5 changed files with 97 additions and 46 deletions
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25
doc/en/example/pythoncollection.rst
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@ -177,16 +177,27 @@ and a setup.py dummy file like this::
# content of setup.py
0/0 # will raise exception if imported
then a pytest run on python2 will find the one test when run with a python2
interpreters and will leave out the setup.py file::
then a pytest run on Python2 will find the one test and will leave out the
setup.py file::
$ py.test --collect-only
======= test session starts ========
platform linux -- Python 3.4.0, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
====== test session starts ======
platform linux2 -- Python 2.7.10, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: $REGENDOC_TMPDIR, inifile: pytest.ini
collected 1 items
<Module 'pkg/module_py2.py'>
<Function 'test_only_on_python2'>
====== no tests ran in 0.04 seconds ======
If you run with a Python3 interpreter both the one test and the setup.py file
will be left out::
$ py.test --collect-only
====== test session starts ======
platform linux -- Python 3.4.3+, pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: $REGENDOC_TMPDIR, inifile: pytest.ini
collected 0 items
======= no tests ran in 0.12 seconds ========
If you run with a Python3 interpreter the moduled added through the conftest.py file will not be considered for test collection.
====== no tests ran in 0.03 seconds ======

110
doc/en/fixture.rst
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@ -36,9 +36,9 @@ style <unittest.TestCase>` or :ref:`nose based <nosestyle>` projects.
.. note::
pytest-2.4 introduced an additional experimental
:ref:`yield fixture mechanism <yieldfixture>` for easier context manager
integration and more linear writing of teardown code.
pytest-2.4 introduced an additional :ref:`yield fixture mechanism
<yieldfixture>` for easier context manager integration and more linear
writing of teardown code.
.. _`funcargs`:
.. _`funcarg mechanism`:
@ -283,6 +283,14 @@ module itself does not need to change or know about these details
of fixture setup.
Finalization/teardown with yield fixtures
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Another alternative to the *request.addfinalizer()* method is to use *yield
fixtures*. All the code after the *yield* statement serves as the teardown
code. See the :ref:`yield fixture documentation <yieldfixture>`.
.. _`request-context`:
Fixtures can introspect the requesting test context
@ -577,55 +585,85 @@ to show the setup/teardown flow::
@pytest.fixture(scope="module", params=["mod1", "mod2"])
def modarg(request):
param = request.param
print ("create", param)
print (" SETUP modarg %s" % param)
def fin():
print ("fin %s" % param)
print (" TEARDOWN modarg %s" % param)
request.addfinalizer(fin)
return param
@pytest.fixture(scope="function", params=[1,2])
def otherarg(request):
return request.param
param = request.param
print (" SETUP otherarg %s" % param)
def fin():
print (" TEARDOWN otherarg %s" % param)
request.addfinalizer(fin)
return param
def test_0(otherarg):
print (" test0", otherarg)
print (" RUN test0 with otherarg %s" % otherarg)
def test_1(modarg):
print (" test1", modarg)
print (" RUN test1 with modarg %s" % modarg)
def test_2(otherarg, modarg):
print (" test2", otherarg, modarg)
print (" RUN test2 with otherarg %s and modarg %s" % (otherarg, modarg))
Let's run the tests in verbose mode and with looking at the print-output::
$ py.test -v -s test_module.py
======= test session starts ========
platform linux -- Python 3.4.0, pytest-2.9.1, py-1.4.31, pluggy-0.3.1 -- $PYTHON_PREFIX/bin/python3.4
====== test session starts ======
platform linux -- Python 3.4.3+, pytest-2.9.1, py-1.4.31, pluggy-0.3.1 -- $PYTHON_PREFIX/bin/python3
cachedir: .cache
rootdir: $REGENDOC_TMPDIR, inifile:
collecting ... collected 8 items
test_module.py::test_0[1] test0 1
PASSED
test_module.py::test_0[2] test0 2
PASSED
test_module.py::test_1[mod1] create mod1
test1 mod1
PASSED
test_module.py::test_2[1-mod1] test2 1 mod1
PASSED
test_module.py::test_2[2-mod1] test2 2 mod1
PASSED
test_module.py::test_1[mod2] create mod2
test1 mod2
PASSED
test_module.py::test_2[1-mod2] test2 1 mod2
PASSED
test_module.py::test_2[2-mod2] test2 2 mod2
PASSED
======= 8 passed in 0.12 seconds ========
collected 8 items
You can see that the parametrized module-scoped ``modarg`` resource caused
an ordering of test execution that lead to the fewest possible "active" resources. The finalizer for the ``mod1`` parametrized resource was executed
before the ``mod2`` resource was setup.
test_module.py::test_0[1] SETUP otherarg 1
RUN test0 with otherarg 1
PASSED TEARDOWN otherarg 1
test_module.py::test_0[2] SETUP otherarg 2
RUN test0 with otherarg 2
PASSED TEARDOWN otherarg 2
test_module.py::test_1[mod1] SETUP modarg mod1
RUN test1 with modarg mod1
PASSED
test_module.py::test_2[1-mod1] SETUP otherarg 1
RUN test2 with otherarg 1 and modarg mod1
PASSED TEARDOWN otherarg 1
test_module.py::test_2[2-mod1] SETUP otherarg 2
RUN test2 with otherarg 2 and modarg mod1
PASSED TEARDOWN otherarg 2
test_module.py::test_1[mod2] TEARDOWN modarg mod1
SETUP modarg mod2
RUN test1 with modarg mod2
PASSED
test_module.py::test_2[1-mod2] SETUP otherarg 1
RUN test2 with otherarg 1 and modarg mod2
PASSED TEARDOWN otherarg 1
test_module.py::test_2[2-mod2] SETUP otherarg 2
RUN test2 with otherarg 2 and modarg mod2
PASSED TEARDOWN otherarg 2
TEARDOWN modarg mod2
====== 8 passed in 0.01 seconds ======
You can see that the parametrized module-scoped ``modarg`` resource caused an
ordering of test execution that lead to the fewest possible "active" resources.
The finalizer for the ``mod1`` parametrized resource was executed before the
``mod2`` resource was setup.
In particular notice that test_0 is completely independent and finishes first.
Then test_1 is executed with ``mod1``, then test_2 with ``mod1``, then test_1
with ``mod2`` and finally test_2 with ``mod2``.
The ``otherarg`` parametrized resource (having function scope) was set up before
and teared down after every test that used it.
.. _`usefixtures`:

4
doc/en/goodpractices.rst
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@ -153,7 +153,9 @@ against your source code checkout, helping to detect packaging
glitches.
Continuous integration services such as Jenkins_ can make use of the
``--junitxml=PATH`` option to create a JUnitXML file and generate reports.
``--junitxml=PATH`` option to create a JUnitXML file and generate reports (e.g.
by publishing the results in a nice format with the `Jenkins xUnit Plugin
<https://wiki.jenkins-ci.org/display/JENKINS/xUnit+Plugin>`_).
Integrating with setuptools / ``python setup.py test`` / ``pytest-runner``

2
doc/en/usage.rst
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@ -56,7 +56,7 @@ Several test run options::
Import 'pkg' and use its filesystem location to find and run tests::
py.test --pyargs pkg # run all tests found below directory of pypkg
py.test --pyargs pkg # run all tests found below directory of pkg
Modifying Python traceback printing
----------------------------------------------

2
doc/en/writing_plugins.rst
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@ -23,7 +23,7 @@ reporting by calling `well specified hooks`_ of the following plugins:
In principle, each hook call is a ``1:N`` Python function call where ``N`` is the
number of registered implementation functions for a given specification.
All specifications and implementations following the ``pytest_`` prefix
All specifications and implementations follow the ``pytest_`` prefix
naming convention, making them easy to distinguish and find.
.. _`pluginorder`: