test_ok1/doc/en/plugins.txt

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.. _`external plugins`:
.. _`extplugins`:
.. _`using plugins`:
Installing and Using plugins
============================
This section talks about installing and using third party plugins.
For writing your own plugins, please refer to :ref:`writing-plugins`.
Installing a third party plugin can be easily done with ``pip``::
pip install pytest-NAME
pip uninstall pytest-NAME
If a plugin is installed, ``pytest`` automatically finds and integrates it,
there is no need to activate it. We have a :doc:`page listing
all 3rd party plugins and their status against the latest py.test version
<plugins_index/index>` and here is a little annotated list
for some popular plugins:
.. _`django`: https://www.djangoproject.com/
* `pytest-django <http://pypi.python.org/pypi/pytest-django>`_: write tests
for `django`_ apps, using pytest integration.
* `pytest-twisted <http://pypi.python.org/pypi/pytest-twisted>`_: write tests
for `twisted <http://twistedmatrix.com>`_ apps, starting a reactor and
processing deferreds from test functions.
* `pytest-capturelog <http://pypi.python.org/pypi/pytest-capturelog>`_:
to capture and assert about messages from the logging module
* `pytest-cov <http://pypi.python.org/pypi/pytest-cov>`_:
coverage reporting, compatible with distributed testing
* `pytest-xdist <http://pypi.python.org/pypi/pytest-xdist>`_:
to distribute tests to CPUs and remote hosts, to run in boxed
mode which allows to survive segmentation faults, to run in
looponfailing mode, automatically re-running failing tests
on file changes, see also :ref:`xdist`
* `pytest-instafail <http://pypi.python.org/pypi/pytest-instafail>`_:
to report failures while the test run is happening.
* `pytest-bdd <http://pypi.python.org/pypi/pytest-bdd>`_ and
`pytest-konira <http://pypi.python.org/pypi/pytest-konira>`_
to write tests using behaviour-driven testing.
* `pytest-timeout <http://pypi.python.org/pypi/pytest-timeout>`_:
to timeout tests based on function marks or global definitions.
* `pytest-cache <http://pypi.python.org/pypi/pytest-cache>`_:
to interactively re-run failing tests and help other plugins to
store test run information across invocations.
* `pytest-pep8 <http://pypi.python.org/pypi/pytest-pep8>`_:
a ``--pep8`` option to enable PEP8 compliance checking.
* `oejskit <http://pypi.python.org/pypi/oejskit>`_:
a plugin to run javascript unittests in life browsers
To see a complete list of all plugins with their latest testing
status against different py.test and Python versions, please visit
`plugincompat <http://plugincompat.herokuapp.com/>`_.
You may also discover more plugins through a `pytest- pypi.python.org search`_.
.. _`available installable plugins`:
.. _`pytest- pypi.python.org search`: http://pypi.python.org/pypi?%3Aaction=search&term=pytest-&submit=search
Requiring/Loading plugins in a test module or conftest file
-----------------------------------------------------------
You can require plugins in a test module or a conftest file like this::
pytest_plugins = "myapp.testsupport.myplugin",
When the test module or conftest plugin is loaded the specified plugins
will be loaded as well.
pytest_plugins = "myapp.testsupport.myplugin"
which will import the specified module as a ``pytest`` plugin.
.. _`findpluginname`:
Finding out which plugins are active
------------------------------------
If you want to find out which plugins are active in your
environment you can type::
py.test --traceconfig
and will get an extended test header which shows activated plugins
and their names. It will also print local plugins aka
:ref:`conftest.py <conftest>` files when they are loaded.
.. _`cmdunregister`:
Deactivating / unregistering a plugin by name
---------------------------------------------
You can prevent plugins from loading or unregister them::
py.test -p no:NAME
This means that any subsequent try to activate/load the named
plugin will it already existing. See :ref:`findpluginname` for
how to obtain the name of a plugin.
.. _`builtin plugins`:
pytest default plugin reference
===============================
You can find the source code for the following plugins
in the `pytest repository <https://github.com/pytest-dev/pytest>`_.
.. autosummary::
_pytest.assertion
_pytest.capture
_pytest.config
_pytest.doctest
_pytest.genscript
_pytest.helpconfig
_pytest.junitxml
_pytest.mark
_pytest.monkeypatch
_pytest.nose
_pytest.pastebin
_pytest.pdb
_pytest.pytester
_pytest.python
_pytest.recwarn
_pytest.resultlog
_pytest.runner
_pytest.main
_pytest.skipping
_pytest.terminal
_pytest.tmpdir
_pytest.unittest