This adds `pytest.version_tuple`, which makes it simpler for users to do something depending on the pytest version, such as declaring hooks which are introduced in later versions. This feature was added originally in https://github.com/pypa/setuptools_scm/pull/475. Followup to https://github.com/pytest-dev/pytest/pull/7605.
2016 lines
57 KiB
ReStructuredText
2016 lines
57 KiB
ReStructuredText
.. _`api-reference`:
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API Reference
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=============
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This page contains the full reference to pytest's API.
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.. contents::
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:depth: 3
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:local:
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Functions
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---------
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pytest.approx
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~~~~~~~~~~~~~
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.. autofunction:: pytest.approx
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pytest.fail
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~~~~~~~~~~~
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**Tutorial**: :ref:`skipping`
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.. autofunction:: pytest.fail
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pytest.skip
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~~~~~~~~~~~
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.. autofunction:: pytest.skip(msg, [allow_module_level=False])
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.. _`pytest.importorskip ref`:
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pytest.importorskip
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~~~~~~~~~~~~~~~~~~~
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.. autofunction:: pytest.importorskip
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pytest.xfail
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~~~~~~~~~~~~
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.. autofunction:: pytest.xfail
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pytest.exit
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~~~~~~~~~~~
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.. autofunction:: pytest.exit
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pytest.main
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~~~~~~~~~~~
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.. autofunction:: pytest.main
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pytest.param
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~~~~~~~~~~~~
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.. autofunction:: pytest.param(*values, [id], [marks])
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pytest.raises
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~~~~~~~~~~~~~
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**Tutorial**: :ref:`assertraises`.
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.. autofunction:: pytest.raises(expected_exception: Exception [, *, match])
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:with: excinfo
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pytest.deprecated_call
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~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`ensuring_function_triggers`.
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.. autofunction:: pytest.deprecated_call()
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:with:
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pytest.register_assert_rewrite
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`assertion-rewriting`.
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.. autofunction:: pytest.register_assert_rewrite
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pytest.warns
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~~~~~~~~~~~~
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**Tutorial**: :ref:`assertwarnings`
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.. autofunction:: pytest.warns(expected_warning: Exception, [match])
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:with:
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pytest.freeze_includes
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`freezing-pytest`.
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.. autofunction:: pytest.freeze_includes
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.. _`marks ref`:
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Marks
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-----
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Marks can be used apply meta data to *test functions* (but not fixtures), which can then be accessed by
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fixtures or plugins.
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.. _`pytest.mark.filterwarnings ref`:
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pytest.mark.filterwarnings
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`filterwarnings`.
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Add warning filters to marked test items.
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.. py:function:: pytest.mark.filterwarnings(filter)
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:keyword str filter:
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A *warning specification string*, which is composed of contents of the tuple ``(action, message, category, module, lineno)``
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as specified in `The Warnings filter <https://docs.python.org/3/library/warnings.html#warning-filter>`_ section of
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the Python documentation, separated by ``":"``. Optional fields can be omitted.
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Module names passed for filtering are not regex-escaped.
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For example:
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.. code-block:: python
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@pytest.mark.filterwarnings("ignore:.*usage will be deprecated.*:DeprecationWarning")
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def test_foo():
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...
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.. _`pytest.mark.parametrize ref`:
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pytest.mark.parametrize
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~~~~~~~~~~~~~~~~~~~~~~~
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:ref:`parametrize`.
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This mark has the same signature as :py:meth:`pytest.Metafunc.parametrize`; see there.
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.. _`pytest.mark.skip ref`:
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pytest.mark.skip
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~~~~~~~~~~~~~~~~
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:ref:`skip`.
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Unconditionally skip a test function.
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.. py:function:: pytest.mark.skip(reason=None)
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:keyword str reason: Reason why the test function is being skipped.
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.. _`pytest.mark.skipif ref`:
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pytest.mark.skipif
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~~~~~~~~~~~~~~~~~~
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:ref:`skipif`.
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Skip a test function if a condition is ``True``.
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.. py:function:: pytest.mark.skipif(condition, *, reason=None)
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:type condition: bool or str
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:param condition: ``True/False`` if the condition should be skipped or a :ref:`condition string <string conditions>`.
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:keyword str reason: Reason why the test function is being skipped.
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.. _`pytest.mark.usefixtures ref`:
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pytest.mark.usefixtures
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~~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`usefixtures`.
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Mark a test function as using the given fixture names.
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.. py:function:: pytest.mark.usefixtures(*names)
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:param args: The names of the fixture to use, as strings.
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.. note::
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When using `usefixtures` in hooks, it can only load fixtures when applied to a test function before test setup
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(for example in the `pytest_collection_modifyitems` hook).
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Also note that this mark has no effect when applied to **fixtures**.
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.. _`pytest.mark.xfail ref`:
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pytest.mark.xfail
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~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`xfail`.
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Marks a test function as *expected to fail*.
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.. py:function:: pytest.mark.xfail(condition=None, *, reason=None, raises=None, run=True, strict=False)
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:type condition: bool or str
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:param condition:
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Condition for marking the test function as xfail (``True/False`` or a
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:ref:`condition string <string conditions>`). If a bool, you also have
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to specify ``reason`` (see :ref:`condition string <string conditions>`).
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:keyword str reason:
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Reason why the test function is marked as xfail.
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:keyword Type[Exception] raises:
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Exception subclass expected to be raised by the test function; other exceptions will fail the test.
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:keyword bool run:
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If the test function should actually be executed. If ``False``, the function will always xfail and will
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not be executed (useful if a function is segfaulting).
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:keyword bool strict:
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* If ``False`` (the default) the function will be shown in the terminal output as ``xfailed`` if it fails
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and as ``xpass`` if it passes. In both cases this will not cause the test suite to fail as a whole. This
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is particularly useful to mark *flaky* tests (tests that fail at random) to be tackled later.
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* If ``True``, the function will be shown in the terminal output as ``xfailed`` if it fails, but if it
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unexpectedly passes then it will **fail** the test suite. This is particularly useful to mark functions
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that are always failing and there should be a clear indication if they unexpectedly start to pass (for example
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a new release of a library fixes a known bug).
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pytest.__version__
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~~~~~~~~~~~~~~~~~~
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The current pytest version, as a string::
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>>> import pytest
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>>> pytest.__version__
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'7.0.0'
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.. _`version-tuple`:
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pytest.version_tuple
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~~~~~~~~~~~~~~~~~~~~
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.. versionadded:: 7.0
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The current pytest version, as a tuple::
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>>> import pytest
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>>> pytest.version_tuple
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(7, 0, 0)
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For pre-releases, the last component will be a string with the prerelease version::
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>>> import pytest
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>>> pytest.version_tuple
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(7, 0, '0rc1')
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Custom marks
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~~~~~~~~~~~~
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Marks are created dynamically using the factory object ``pytest.mark`` and applied as a decorator.
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For example:
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.. code-block:: python
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@pytest.mark.timeout(10, "slow", method="thread")
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def test_function():
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...
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Will create and attach a :class:`Mark <pytest.Mark>` object to the collected
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:class:`Item <pytest.Item>`, which can then be accessed by fixtures or hooks with
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:meth:`Node.iter_markers <_pytest.nodes.Node.iter_markers>`. The ``mark`` object will have the following attributes:
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.. code-block:: python
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mark.args == (10, "slow")
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mark.kwargs == {"method": "thread"}
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Example for using multiple custom markers:
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.. code-block:: python
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@pytest.mark.timeout(10, "slow", method="thread")
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@pytest.mark.slow
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def test_function():
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...
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When :meth:`Node.iter_markers <_pytest.nodes.Node.iter_markers>` or :meth:`Node.iter_markers <_pytest.nodes.Node.iter_markers_with_node>` is used with multiple markers, the marker closest to the function will be iterated over first. The above example will result in ``@pytest.mark.slow`` followed by ``@pytest.mark.timeout(...)``.
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.. _`fixtures-api`:
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Fixtures
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--------
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**Tutorial**: :ref:`fixture`.
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Fixtures are requested by test functions or other fixtures by declaring them as argument names.
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Example of a test requiring a fixture:
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.. code-block:: python
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def test_output(capsys):
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print("hello")
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out, err = capsys.readouterr()
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assert out == "hello\n"
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Example of a fixture requiring another fixture:
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.. code-block:: python
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@pytest.fixture
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def db_session(tmp_path):
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fn = tmp_path / "db.file"
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return connect(fn)
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For more details, consult the full :ref:`fixtures docs <fixture>`.
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.. _`pytest.fixture-api`:
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@pytest.fixture
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~~~~~~~~~~~~~~~
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.. autofunction:: pytest.fixture
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:decorator:
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.. fixture:: cache
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config.cache
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~~~~~~~~~~~~
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**Tutorial**: :ref:`cache`.
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The ``config.cache`` object allows other plugins and fixtures
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to store and retrieve values across test runs. To access it from fixtures
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request ``pytestconfig`` into your fixture and get it with ``pytestconfig.cache``.
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Under the hood, the cache plugin uses the simple
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``dumps``/``loads`` API of the :py:mod:`json` stdlib module.
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``config.cache`` is an instance of :class:`pytest.Cache`:
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.. autoclass:: pytest.Cache()
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:members:
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.. fixture:: capsys
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capsys
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~~~~~~
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:ref:`captures`.
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.. autofunction:: _pytest.capture.capsys()
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:no-auto-options:
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Returns an instance of :class:`CaptureFixture[str] <pytest.CaptureFixture>`.
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Example:
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.. code-block:: python
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def test_output(capsys):
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print("hello")
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captured = capsys.readouterr()
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assert captured.out == "hello\n"
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.. autoclass:: pytest.CaptureFixture()
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:members:
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.. fixture:: capsysbinary
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capsysbinary
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~~~~~~~~~~~~
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:ref:`captures`.
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.. autofunction:: _pytest.capture.capsysbinary()
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:no-auto-options:
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Returns an instance of :class:`CaptureFixture[bytes] <pytest.CaptureFixture>`.
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Example:
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.. code-block:: python
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def test_output(capsysbinary):
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print("hello")
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captured = capsysbinary.readouterr()
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assert captured.out == b"hello\n"
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.. fixture:: capfd
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capfd
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~~~~~~
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:ref:`captures`.
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.. autofunction:: _pytest.capture.capfd()
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:no-auto-options:
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Returns an instance of :class:`CaptureFixture[str] <pytest.CaptureFixture>`.
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Example:
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.. code-block:: python
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def test_system_echo(capfd):
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os.system('echo "hello"')
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captured = capfd.readouterr()
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assert captured.out == "hello\n"
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.. fixture:: capfdbinary
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capfdbinary
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~~~~~~~~~~~~
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:ref:`captures`.
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.. autofunction:: _pytest.capture.capfdbinary()
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:no-auto-options:
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Returns an instance of :class:`CaptureFixture[bytes] <pytest.CaptureFixture>`.
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Example:
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.. code-block:: python
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def test_system_echo(capfdbinary):
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os.system('echo "hello"')
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captured = capfdbinary.readouterr()
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assert captured.out == b"hello\n"
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.. fixture:: doctest_namespace
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doctest_namespace
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~~~~~~~~~~~~~~~~~
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:ref:`doctest`.
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.. autofunction:: _pytest.doctest.doctest_namespace()
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Usually this fixture is used in conjunction with another ``autouse`` fixture:
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.. code-block:: python
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@pytest.fixture(autouse=True)
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def add_np(doctest_namespace):
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doctest_namespace["np"] = numpy
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For more details: :ref:`doctest_namespace`.
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.. fixture:: request
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request
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~~~~~~~
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:ref:`request example`.
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The ``request`` fixture is a special fixture providing information of the requesting test function.
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.. autoclass:: pytest.FixtureRequest()
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:members:
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.. fixture:: pytestconfig
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pytestconfig
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~~~~~~~~~~~~
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.. autofunction:: _pytest.fixtures.pytestconfig()
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.. fixture:: record_property
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record_property
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~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`record_property example`.
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.. autofunction:: _pytest.junitxml.record_property()
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.. fixture:: record_testsuite_property
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record_testsuite_property
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~~~~~~~~~~~~~~~~~~~~~~~~~
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**Tutorial**: :ref:`record_testsuite_property example`.
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.. autofunction:: _pytest.junitxml.record_testsuite_property()
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.. fixture:: caplog
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caplog
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~~~~~~
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:ref:`logging`.
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.. autofunction:: _pytest.logging.caplog()
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:no-auto-options:
|
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|
||
Returns a :class:`pytest.LogCaptureFixture` instance.
|
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.. autoclass:: pytest.LogCaptureFixture()
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||
:members:
|
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|
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|
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.. fixture:: monkeypatch
|
||
|
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monkeypatch
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~~~~~~~~~~~
|
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:ref:`monkeypatching`.
|
||
|
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.. autofunction:: _pytest.monkeypatch.monkeypatch()
|
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:no-auto-options:
|
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|
||
Returns a :class:`~pytest.MonkeyPatch` instance.
|
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|
||
.. autoclass:: pytest.MonkeyPatch
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||
:members:
|
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|
||
|
||
.. fixture:: pytester
|
||
|
||
pytester
|
||
~~~~~~~~
|
||
|
||
.. versionadded:: 6.2
|
||
|
||
Provides a :class:`~pytest.Pytester` instance that can be used to run and test pytest itself.
|
||
|
||
It provides an empty directory where pytest can be executed in isolation, and contains facilities
|
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to write tests, configuration files, and match against expected output.
|
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|
||
To use it, include in your topmost ``conftest.py`` file:
|
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|
||
.. code-block:: python
|
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|
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pytest_plugins = "pytester"
|
||
|
||
|
||
|
||
.. autoclass:: pytest.Pytester()
|
||
:members:
|
||
|
||
.. autoclass:: _pytest.pytester.RunResult()
|
||
:members:
|
||
|
||
.. autoclass:: _pytest.pytester.LineMatcher()
|
||
:members:
|
||
:special-members: __str__
|
||
|
||
.. autoclass:: _pytest.pytester.HookRecorder()
|
||
:members:
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|
||
.. fixture:: testdir
|
||
|
||
testdir
|
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~~~~~~~
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|
||
Identical to :fixture:`pytester`, but provides an instance whose methods return
|
||
legacy ``py.path.local`` objects instead when applicable.
|
||
|
||
New code should avoid using :fixture:`testdir` in favor of :fixture:`pytester`.
|
||
|
||
.. autoclass:: pytest.Testdir()
|
||
:members:
|
||
|
||
|
||
.. fixture:: recwarn
|
||
|
||
recwarn
|
||
~~~~~~~
|
||
|
||
**Tutorial**: :ref:`assertwarnings`
|
||
|
||
.. autofunction:: _pytest.recwarn.recwarn()
|
||
:no-auto-options:
|
||
|
||
.. autoclass:: pytest.WarningsRecorder()
|
||
:members:
|
||
|
||
Each recorded warning is an instance of :class:`warnings.WarningMessage`.
|
||
|
||
.. note::
|
||
``DeprecationWarning`` and ``PendingDeprecationWarning`` are treated
|
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differently; see :ref:`ensuring_function_triggers`.
|
||
|
||
|
||
.. fixture:: tmp_path
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||
|
||
tmp_path
|
||
~~~~~~~~
|
||
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:ref:`tmpdir`
|
||
|
||
.. autofunction:: _pytest.tmpdir.tmp_path()
|
||
:no-auto-options:
|
||
|
||
|
||
.. fixture:: tmp_path_factory
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||
|
||
tmp_path_factory
|
||
~~~~~~~~~~~~~~~~
|
||
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||
:ref:`tmp_path_factory example`
|
||
|
||
.. _`tmp_path_factory factory api`:
|
||
|
||
``tmp_path_factory`` is an instance of :class:`~pytest.TempPathFactory`:
|
||
|
||
.. autoclass:: pytest.TempPathFactory()
|
||
:members:
|
||
|
||
|
||
.. fixture:: tmpdir
|
||
|
||
tmpdir
|
||
~~~~~~
|
||
|
||
:ref:`tmpdir and tmpdir_factory`
|
||
|
||
.. autofunction:: _pytest.tmpdir.tmpdir()
|
||
:no-auto-options:
|
||
|
||
|
||
.. fixture:: tmpdir_factory
|
||
|
||
tmpdir_factory
|
||
~~~~~~~~~~~~~~
|
||
|
||
:ref:`tmpdir and tmpdir_factory`
|
||
|
||
``tmpdir_factory`` is an instance of :class:`~pytest.TempdirFactory`:
|
||
|
||
.. autoclass:: pytest.TempdirFactory()
|
||
:members:
|
||
|
||
|
||
.. _`hook-reference`:
|
||
|
||
Hooks
|
||
-----
|
||
|
||
:ref:`writing-plugins`.
|
||
|
||
.. currentmodule:: _pytest.hookspec
|
||
|
||
Reference to all hooks which can be implemented by :ref:`conftest.py files <localplugin>` and :ref:`plugins <plugins>`.
|
||
|
||
Bootstrapping hooks
|
||
~~~~~~~~~~~~~~~~~~~
|
||
|
||
Bootstrapping hooks called for plugins registered early enough (internal and setuptools plugins).
|
||
|
||
.. autofunction:: pytest_load_initial_conftests
|
||
.. autofunction:: pytest_cmdline_preparse
|
||
.. autofunction:: pytest_cmdline_parse
|
||
.. autofunction:: pytest_cmdline_main
|
||
|
||
.. _`initialization-hooks`:
|
||
|
||
Initialization hooks
|
||
~~~~~~~~~~~~~~~~~~~~
|
||
|
||
Initialization hooks called for plugins and ``conftest.py`` files.
|
||
|
||
.. autofunction:: pytest_addoption
|
||
.. autofunction:: pytest_addhooks
|
||
.. autofunction:: pytest_configure
|
||
.. autofunction:: pytest_unconfigure
|
||
.. autofunction:: pytest_sessionstart
|
||
.. autofunction:: pytest_sessionfinish
|
||
|
||
.. autofunction:: pytest_plugin_registered
|
||
|
||
Collection hooks
|
||
~~~~~~~~~~~~~~~~
|
||
|
||
``pytest`` calls the following hooks for collecting files and directories:
|
||
|
||
.. autofunction:: pytest_collection
|
||
.. autofunction:: pytest_ignore_collect
|
||
.. autofunction:: pytest_collect_file
|
||
.. autofunction:: pytest_pycollect_makemodule
|
||
|
||
For influencing the collection of objects in Python modules
|
||
you can use the following hook:
|
||
|
||
.. autofunction:: pytest_pycollect_makeitem
|
||
.. autofunction:: pytest_generate_tests
|
||
.. autofunction:: pytest_make_parametrize_id
|
||
|
||
After collection is complete, you can modify the order of
|
||
items, delete or otherwise amend the test items:
|
||
|
||
.. autofunction:: pytest_collection_modifyitems
|
||
|
||
.. note::
|
||
If this hook is implemented in ``conftest.py`` files, it always receives all collected items, not only those
|
||
under the ``conftest.py`` where it is implemented.
|
||
|
||
.. autofunction:: pytest_collection_finish
|
||
|
||
Test running (runtest) hooks
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
All runtest related hooks receive a :py:class:`pytest.Item <pytest.Item>` object.
|
||
|
||
.. autofunction:: pytest_runtestloop
|
||
.. autofunction:: pytest_runtest_protocol
|
||
.. autofunction:: pytest_runtest_logstart
|
||
.. autofunction:: pytest_runtest_logfinish
|
||
.. autofunction:: pytest_runtest_setup
|
||
.. autofunction:: pytest_runtest_call
|
||
.. autofunction:: pytest_runtest_teardown
|
||
.. autofunction:: pytest_runtest_makereport
|
||
|
||
For deeper understanding you may look at the default implementation of
|
||
these hooks in ``_pytest.runner`` and maybe also
|
||
in ``_pytest.pdb`` which interacts with ``_pytest.capture``
|
||
and its input/output capturing in order to immediately drop
|
||
into interactive debugging when a test failure occurs.
|
||
|
||
.. autofunction:: pytest_pyfunc_call
|
||
|
||
Reporting hooks
|
||
~~~~~~~~~~~~~~~
|
||
|
||
Session related reporting hooks:
|
||
|
||
.. autofunction:: pytest_collectstart
|
||
.. autofunction:: pytest_make_collect_report
|
||
.. autofunction:: pytest_itemcollected
|
||
.. autofunction:: pytest_collectreport
|
||
.. autofunction:: pytest_deselected
|
||
.. autofunction:: pytest_report_header
|
||
.. autofunction:: pytest_report_collectionfinish
|
||
.. autofunction:: pytest_report_teststatus
|
||
.. autofunction:: pytest_terminal_summary
|
||
.. autofunction:: pytest_fixture_setup
|
||
.. autofunction:: pytest_fixture_post_finalizer
|
||
.. autofunction:: pytest_warning_captured
|
||
.. autofunction:: pytest_warning_recorded
|
||
|
||
Central hook for reporting about test execution:
|
||
|
||
.. autofunction:: pytest_runtest_logreport
|
||
|
||
Assertion related hooks:
|
||
|
||
.. autofunction:: pytest_assertrepr_compare
|
||
.. autofunction:: pytest_assertion_pass
|
||
|
||
|
||
Debugging/Interaction hooks
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
There are few hooks which can be used for special
|
||
reporting or interaction with exceptions:
|
||
|
||
.. autofunction:: pytest_internalerror
|
||
.. autofunction:: pytest_keyboard_interrupt
|
||
.. autofunction:: pytest_exception_interact
|
||
.. autofunction:: pytest_enter_pdb
|
||
|
||
|
||
Objects
|
||
-------
|
||
|
||
Full reference to objects accessible from :ref:`fixtures <fixture>` or :ref:`hooks <hook-reference>`.
|
||
|
||
|
||
CallInfo
|
||
~~~~~~~~
|
||
|
||
.. autoclass:: pytest.CallInfo()
|
||
:members:
|
||
|
||
|
||
Class
|
||
~~~~~
|
||
|
||
.. autoclass:: pytest.Class()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
Collector
|
||
~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.Collector()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
CollectReport
|
||
~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: _pytest.reports.CollectReport()
|
||
:members:
|
||
:show-inheritance:
|
||
:inherited-members:
|
||
|
||
Config
|
||
~~~~~~
|
||
|
||
.. autoclass:: pytest.Config()
|
||
:members:
|
||
|
||
ExceptionInfo
|
||
~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.ExceptionInfo()
|
||
:members:
|
||
|
||
|
||
ExitCode
|
||
~~~~~~~~
|
||
|
||
.. autoclass:: pytest.ExitCode
|
||
:members:
|
||
|
||
File
|
||
~~~~
|
||
|
||
.. autoclass:: pytest.File()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
|
||
FixtureDef
|
||
~~~~~~~~~~
|
||
|
||
.. autoclass:: _pytest.fixtures.FixtureDef()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
FSCollector
|
||
~~~~~~~~~~~
|
||
|
||
.. autoclass:: _pytest.nodes.FSCollector()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
Function
|
||
~~~~~~~~
|
||
|
||
.. autoclass:: pytest.Function()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
FunctionDefinition
|
||
~~~~~~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: _pytest.python.FunctionDefinition()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
Item
|
||
~~~~
|
||
|
||
.. autoclass:: pytest.Item()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
MarkDecorator
|
||
~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.MarkDecorator()
|
||
:members:
|
||
|
||
|
||
MarkGenerator
|
||
~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.MarkGenerator()
|
||
:members:
|
||
|
||
|
||
Mark
|
||
~~~~
|
||
|
||
.. autoclass:: pytest.Mark()
|
||
:members:
|
||
|
||
|
||
Metafunc
|
||
~~~~~~~~
|
||
|
||
.. autoclass:: pytest.Metafunc()
|
||
:members:
|
||
|
||
Module
|
||
~~~~~~
|
||
|
||
.. autoclass:: pytest.Module()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
Node
|
||
~~~~
|
||
|
||
.. autoclass:: _pytest.nodes.Node()
|
||
:members:
|
||
|
||
Parser
|
||
~~~~~~
|
||
|
||
.. autoclass:: pytest.Parser()
|
||
:members:
|
||
|
||
OptionGroup
|
||
~~~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.OptionGroup()
|
||
:members:
|
||
|
||
PytestPluginManager
|
||
~~~~~~~~~~~~~~~~~~~
|
||
|
||
.. autoclass:: pytest.PytestPluginManager()
|
||
:members:
|
||
:undoc-members:
|
||
:inherited-members:
|
||
:show-inheritance:
|
||
|
||
Session
|
||
~~~~~~~
|
||
|
||
.. autoclass:: pytest.Session()
|
||
:members:
|
||
:show-inheritance:
|
||
|
||
TestReport
|
||
~~~~~~~~~~
|
||
|
||
.. autoclass:: _pytest.reports.TestReport()
|
||
:members:
|
||
:show-inheritance:
|
||
:inherited-members:
|
||
|
||
_Result
|
||
~~~~~~~
|
||
|
||
Result used within :ref:`hook wrappers <hookwrapper>`.
|
||
|
||
.. autoclass:: pluggy.callers._Result
|
||
.. automethod:: pluggy.callers._Result.get_result
|
||
.. automethod:: pluggy.callers._Result.force_result
|
||
|
||
Global Variables
|
||
----------------
|
||
|
||
pytest treats some global variables in a special manner when defined in a test module or
|
||
``conftest.py`` files.
|
||
|
||
|
||
.. globalvar:: collect_ignore
|
||
|
||
**Tutorial**: :ref:`customizing-test-collection`
|
||
|
||
Can be declared in *conftest.py files* to exclude test directories or modules.
|
||
Needs to be a list of paths (``str``, :class:`pathlib.Path` or any :class:`os.PathLike`).
|
||
|
||
.. code-block:: python
|
||
|
||
collect_ignore = ["setup.py"]
|
||
|
||
|
||
.. globalvar:: collect_ignore_glob
|
||
|
||
**Tutorial**: :ref:`customizing-test-collection`
|
||
|
||
Can be declared in *conftest.py files* to exclude test directories or modules
|
||
with Unix shell-style wildcards. Needs to be ``list[str]`` where ``str`` can
|
||
contain glob patterns.
|
||
|
||
.. code-block:: python
|
||
|
||
collect_ignore_glob = ["*_ignore.py"]
|
||
|
||
|
||
.. globalvar:: pytest_plugins
|
||
|
||
**Tutorial**: :ref:`available installable plugins`
|
||
|
||
Can be declared at the **global** level in *test modules* and *conftest.py files* to register additional plugins.
|
||
Can be either a ``str`` or ``Sequence[str]``.
|
||
|
||
.. code-block:: python
|
||
|
||
pytest_plugins = "myapp.testsupport.myplugin"
|
||
|
||
.. code-block:: python
|
||
|
||
pytest_plugins = ("myapp.testsupport.tools", "myapp.testsupport.regression")
|
||
|
||
|
||
.. globalvar:: pytestmark
|
||
|
||
**Tutorial**: :ref:`scoped-marking`
|
||
|
||
Can be declared at the **global** level in *test modules* to apply one or more :ref:`marks <marks ref>` to all
|
||
test functions and methods. Can be either a single mark or a list of marks (applied in left-to-right order).
|
||
|
||
.. code-block:: python
|
||
|
||
import pytest
|
||
|
||
pytestmark = pytest.mark.webtest
|
||
|
||
|
||
.. code-block:: python
|
||
|
||
import pytest
|
||
|
||
pytestmark = [pytest.mark.integration, pytest.mark.slow]
|
||
|
||
|
||
Environment Variables
|
||
---------------------
|
||
|
||
Environment variables that can be used to change pytest's behavior.
|
||
|
||
.. envvar:: PYTEST_ADDOPTS
|
||
|
||
This contains a command-line (parsed by the py:mod:`shlex` module) that will be **prepended** to the command line given
|
||
by the user, see :ref:`adding default options` for more information.
|
||
|
||
.. envvar:: PYTEST_CURRENT_TEST
|
||
|
||
This is not meant to be set by users, but is set by pytest internally with the name of the current test so other
|
||
processes can inspect it, see :ref:`pytest current test env` for more information.
|
||
|
||
.. envvar:: PYTEST_DEBUG
|
||
|
||
When set, pytest will print tracing and debug information.
|
||
|
||
.. envvar:: PYTEST_DISABLE_PLUGIN_AUTOLOAD
|
||
|
||
When set, disables plugin auto-loading through setuptools entrypoints. Only explicitly specified plugins will be
|
||
loaded.
|
||
|
||
.. envvar:: PYTEST_PLUGINS
|
||
|
||
Contains comma-separated list of modules that should be loaded as plugins:
|
||
|
||
.. code-block:: bash
|
||
|
||
export PYTEST_PLUGINS=mymodule.plugin,xdist
|
||
|
||
.. envvar:: PY_COLORS
|
||
|
||
When set to ``1``, pytest will use color in terminal output.
|
||
When set to ``0``, pytest will not use color.
|
||
``PY_COLORS`` takes precedence over ``NO_COLOR`` and ``FORCE_COLOR``.
|
||
|
||
.. envvar:: NO_COLOR
|
||
|
||
When set (regardless of value), pytest will not use color in terminal output.
|
||
``PY_COLORS`` takes precedence over ``NO_COLOR``, which takes precedence over ``FORCE_COLOR``.
|
||
See `no-color.org <https://no-color.org/>`__ for other libraries supporting this community standard.
|
||
|
||
.. envvar:: FORCE_COLOR
|
||
|
||
When set (regardless of value), pytest will use color in terminal output.
|
||
``PY_COLORS`` and ``NO_COLOR`` take precedence over ``FORCE_COLOR``.
|
||
|
||
Exceptions
|
||
----------
|
||
|
||
.. autoclass:: pytest.UsageError()
|
||
:show-inheritance:
|
||
|
||
.. _`warnings ref`:
|
||
|
||
Warnings
|
||
--------
|
||
|
||
Custom warnings generated in some situations such as improper usage or deprecated features.
|
||
|
||
.. autoclass:: pytest.PytestWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestAssertRewriteWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestCacheWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestCollectionWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestConfigWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestDeprecationWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestExperimentalApiWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestUnhandledCoroutineWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestUnknownMarkWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestUnraisableExceptionWarning
|
||
:show-inheritance:
|
||
|
||
.. autoclass:: pytest.PytestUnhandledThreadExceptionWarning
|
||
:show-inheritance:
|
||
|
||
|
||
Consult the :ref:`internal-warnings` section in the documentation for more information.
|
||
|
||
|
||
.. _`ini options ref`:
|
||
|
||
Configuration Options
|
||
---------------------
|
||
|
||
Here is a list of builtin configuration options that may be written in a ``pytest.ini``, ``pyproject.toml``, ``tox.ini`` or ``setup.cfg``
|
||
file, usually located at the root of your repository. To see each file format in details, see
|
||
:ref:`config file formats`.
|
||
|
||
.. warning::
|
||
Usage of ``setup.cfg`` is not recommended except for very simple use cases. ``.cfg``
|
||
files use a different parser than ``pytest.ini`` and ``tox.ini`` which might cause hard to track
|
||
down problems.
|
||
When possible, it is recommended to use the latter files, or ``pyproject.toml``, to hold your pytest configuration.
|
||
|
||
Configuration options may be overwritten in the command-line by using ``-o/--override-ini``, which can also be
|
||
passed multiple times. The expected format is ``name=value``. For example::
|
||
|
||
pytest -o console_output_style=classic -o cache_dir=/tmp/mycache
|
||
|
||
|
||
.. confval:: addopts
|
||
|
||
Add the specified ``OPTS`` to the set of command line arguments as if they
|
||
had been specified by the user. Example: if you have this ini file content:
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
addopts = --maxfail=2 -rf # exit after 2 failures, report fail info
|
||
|
||
issuing ``pytest test_hello.py`` actually means:
|
||
|
||
.. code-block:: bash
|
||
|
||
pytest --maxfail=2 -rf test_hello.py
|
||
|
||
Default is to add no options.
|
||
|
||
|
||
.. confval:: cache_dir
|
||
|
||
Sets a directory where stores content of cache plugin. Default directory is
|
||
``.pytest_cache`` which is created in :ref:`rootdir <rootdir>`. Directory may be
|
||
relative or absolute path. If setting relative path, then directory is created
|
||
relative to :ref:`rootdir <rootdir>`. Additionally path may contain environment
|
||
variables, that will be expanded. For more information about cache plugin
|
||
please refer to :ref:`cache_provider`.
|
||
|
||
|
||
.. confval:: confcutdir
|
||
|
||
Sets a directory where search upwards for ``conftest.py`` files stops.
|
||
By default, pytest will stop searching for ``conftest.py`` files upwards
|
||
from ``pytest.ini``/``tox.ini``/``setup.cfg`` of the project if any,
|
||
or up to the file-system root.
|
||
|
||
|
||
.. confval:: console_output_style
|
||
|
||
|
||
|
||
Sets the console output style while running tests:
|
||
|
||
* ``classic``: classic pytest output.
|
||
* ``progress``: like classic pytest output, but with a progress indicator.
|
||
* ``count``: like progress, but shows progress as the number of tests completed instead of a percent.
|
||
|
||
The default is ``progress``, but you can fallback to ``classic`` if you prefer or
|
||
the new mode is causing unexpected problems:
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
console_output_style = classic
|
||
|
||
|
||
.. confval:: doctest_encoding
|
||
|
||
|
||
|
||
Default encoding to use to decode text files with docstrings.
|
||
:ref:`See how pytest handles doctests <doctest>`.
|
||
|
||
|
||
.. confval:: doctest_optionflags
|
||
|
||
One or more doctest flag names from the standard ``doctest`` module.
|
||
:ref:`See how pytest handles doctests <doctest>`.
|
||
|
||
|
||
.. confval:: empty_parameter_set_mark
|
||
|
||
|
||
|
||
Allows to pick the action for empty parametersets in parameterization
|
||
|
||
* ``skip`` skips tests with an empty parameterset (default)
|
||
* ``xfail`` marks tests with an empty parameterset as xfail(run=False)
|
||
* ``fail_at_collect`` raises an exception if parametrize collects an empty parameter set
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
empty_parameter_set_mark = xfail
|
||
|
||
.. note::
|
||
|
||
The default value of this option is planned to change to ``xfail`` in future releases
|
||
as this is considered less error prone, see `#3155 <https://github.com/pytest-dev/pytest/issues/3155>`_
|
||
for more details.
|
||
|
||
|
||
.. confval:: faulthandler_timeout
|
||
|
||
Dumps the tracebacks of all threads if a test takes longer than ``X`` seconds to run (including
|
||
fixture setup and teardown). Implemented using the `faulthandler.dump_traceback_later`_ function,
|
||
so all caveats there apply.
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
faulthandler_timeout=5
|
||
|
||
For more information please refer to :ref:`faulthandler`.
|
||
|
||
.. _`faulthandler.dump_traceback_later`: https://docs.python.org/3/library/faulthandler.html#faulthandler.dump_traceback_later
|
||
|
||
|
||
.. confval:: filterwarnings
|
||
|
||
|
||
|
||
Sets a list of filters and actions that should be taken for matched
|
||
warnings. By default all warnings emitted during the test session
|
||
will be displayed in a summary at the end of the test session.
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
filterwarnings =
|
||
error
|
||
ignore::DeprecationWarning
|
||
|
||
This tells pytest to ignore deprecation warnings and turn all other warnings
|
||
into errors. For more information please refer to :ref:`warnings`.
|
||
|
||
|
||
.. confval:: junit_duration_report
|
||
|
||
.. versionadded:: 4.1
|
||
|
||
Configures how durations are recorded into the JUnit XML report:
|
||
|
||
* ``total`` (the default): duration times reported include setup, call, and teardown times.
|
||
* ``call``: duration times reported include only call times, excluding setup and teardown.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
junit_duration_report = call
|
||
|
||
|
||
.. confval:: junit_family
|
||
|
||
.. versionadded:: 4.2
|
||
.. versionchanged:: 6.1
|
||
Default changed to ``xunit2``.
|
||
|
||
Configures the format of the generated JUnit XML file. The possible options are:
|
||
|
||
* ``xunit1`` (or ``legacy``): produces old style output, compatible with the xunit 1.0 format.
|
||
* ``xunit2``: produces `xunit 2.0 style output <https://github.com/jenkinsci/xunit-plugin/blob/xunit-2.3.2/src/main/resources/org/jenkinsci/plugins/xunit/types/model/xsd/junit-10.xsd>`__, which should be more compatible with latest Jenkins versions. **This is the default**.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
junit_family = xunit2
|
||
|
||
|
||
.. confval:: junit_logging
|
||
|
||
.. versionadded:: 3.5
|
||
.. versionchanged:: 5.4
|
||
``log``, ``all``, ``out-err`` options added.
|
||
|
||
Configures if captured output should be written to the JUnit XML file. Valid values are:
|
||
|
||
* ``log``: write only ``logging`` captured output.
|
||
* ``system-out``: write captured ``stdout`` contents.
|
||
* ``system-err``: write captured ``stderr`` contents.
|
||
* ``out-err``: write both captured ``stdout`` and ``stderr`` contents.
|
||
* ``all``: write captured ``logging``, ``stdout`` and ``stderr`` contents.
|
||
* ``no`` (the default): no captured output is written.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
junit_logging = system-out
|
||
|
||
|
||
.. confval:: junit_log_passing_tests
|
||
|
||
.. versionadded:: 4.6
|
||
|
||
If ``junit_logging != "no"``, configures if the captured output should be written
|
||
to the JUnit XML file for **passing** tests. Default is ``True``.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
junit_log_passing_tests = False
|
||
|
||
|
||
.. confval:: junit_suite_name
|
||
|
||
To set the name of the root test suite xml item, you can configure the ``junit_suite_name`` option in your config file:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
junit_suite_name = my_suite
|
||
|
||
.. confval:: log_auto_indent
|
||
|
||
Allow selective auto-indentation of multiline log messages.
|
||
|
||
Supports command line option ``--log-auto-indent [value]``
|
||
and config option ``log_auto_indent = [value]`` to set the
|
||
auto-indentation behavior for all logging.
|
||
|
||
``[value]`` can be:
|
||
* True or "On" - Dynamically auto-indent multiline log messages
|
||
* False or "Off" or 0 - Do not auto-indent multiline log messages (the default behavior)
|
||
* [positive integer] - auto-indent multiline log messages by [value] spaces
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_auto_indent = False
|
||
|
||
Supports passing kwarg ``extra={"auto_indent": [value]}`` to
|
||
calls to ``logging.log()`` to specify auto-indentation behavior for
|
||
a specific entry in the log. ``extra`` kwarg overrides the value specified
|
||
on the command line or in the config.
|
||
|
||
.. confval:: log_cli
|
||
|
||
Enable log display during test run (also known as :ref:`"live logging" <live_logs>`).
|
||
The default is ``False``.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_cli = True
|
||
|
||
.. confval:: log_cli_date_format
|
||
|
||
|
||
|
||
Sets a :py:func:`time.strftime`-compatible string that will be used when formatting dates for live logging.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_cli_date_format = %Y-%m-%d %H:%M:%S
|
||
|
||
For more information, see :ref:`live_logs`.
|
||
|
||
.. confval:: log_cli_format
|
||
|
||
|
||
|
||
Sets a :py:mod:`logging`-compatible string used to format live logging messages.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_cli_format = %(asctime)s %(levelname)s %(message)s
|
||
|
||
For more information, see :ref:`live_logs`.
|
||
|
||
|
||
.. confval:: log_cli_level
|
||
|
||
|
||
|
||
Sets the minimum log message level that should be captured for live logging. The integer value or
|
||
the names of the levels can be used.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_cli_level = INFO
|
||
|
||
For more information, see :ref:`live_logs`.
|
||
|
||
|
||
.. confval:: log_date_format
|
||
|
||
|
||
|
||
Sets a :py:func:`time.strftime`-compatible string that will be used when formatting dates for logging capture.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_date_format = %Y-%m-%d %H:%M:%S
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
|
||
.. confval:: log_file
|
||
|
||
|
||
|
||
Sets a file name relative to the ``pytest.ini`` file where log messages should be written to, in addition
|
||
to the other logging facilities that are active.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_file = logs/pytest-logs.txt
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
|
||
.. confval:: log_file_date_format
|
||
|
||
|
||
|
||
Sets a :py:func:`time.strftime`-compatible string that will be used when formatting dates for the logging file.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_file_date_format = %Y-%m-%d %H:%M:%S
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
.. confval:: log_file_format
|
||
|
||
|
||
|
||
Sets a :py:mod:`logging`-compatible string used to format logging messages redirected to the logging file.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_file_format = %(asctime)s %(levelname)s %(message)s
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
.. confval:: log_file_level
|
||
|
||
|
||
|
||
Sets the minimum log message level that should be captured for the logging file. The integer value or
|
||
the names of the levels can be used.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_file_level = INFO
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
|
||
.. confval:: log_format
|
||
|
||
|
||
|
||
Sets a :py:mod:`logging`-compatible string used to format captured logging messages.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_format = %(asctime)s %(levelname)s %(message)s
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
|
||
.. confval:: log_level
|
||
|
||
|
||
|
||
Sets the minimum log message level that should be captured for logging capture. The integer value or
|
||
the names of the levels can be used.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
log_level = INFO
|
||
|
||
For more information, see :ref:`logging`.
|
||
|
||
|
||
.. confval:: markers
|
||
|
||
When the ``--strict-markers`` or ``--strict`` command-line arguments are used,
|
||
only known markers - defined in code by core pytest or some plugin - are allowed.
|
||
|
||
You can list additional markers in this setting to add them to the whitelist,
|
||
in which case you probably want to add ``--strict-markers`` to ``addopts``
|
||
to avoid future regressions:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
addopts = --strict-markers
|
||
markers =
|
||
slow
|
||
serial
|
||
|
||
.. note::
|
||
The use of ``--strict-markers`` is highly preferred. ``--strict`` was kept for
|
||
backward compatibility only and may be confusing for others as it only applies to
|
||
markers and not to other options.
|
||
|
||
.. confval:: minversion
|
||
|
||
Specifies a minimal pytest version required for running tests.
|
||
|
||
.. code-block:: ini
|
||
|
||
# content of pytest.ini
|
||
[pytest]
|
||
minversion = 3.0 # will fail if we run with pytest-2.8
|
||
|
||
|
||
.. confval:: norecursedirs
|
||
|
||
Set the directory basename patterns to avoid when recursing
|
||
for test discovery. The individual (fnmatch-style) patterns are
|
||
applied to the basename of a directory to decide if to recurse into it.
|
||
Pattern matching characters::
|
||
|
||
* matches everything
|
||
? matches any single character
|
||
[seq] matches any character in seq
|
||
[!seq] matches any char not in seq
|
||
|
||
Default patterns are ``'*.egg'``, ``'.*'``, ``'_darcs'``, ``'build'``,
|
||
``'CVS'``, ``'dist'``, ``'node_modules'``, ``'venv'``, ``'{arch}'``.
|
||
Setting a ``norecursedirs`` replaces the default. Here is an example of
|
||
how to avoid certain directories:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
norecursedirs = .svn _build tmp*
|
||
|
||
This would tell ``pytest`` to not look into typical subversion or
|
||
sphinx-build directories or into any ``tmp`` prefixed directory.
|
||
|
||
Additionally, ``pytest`` will attempt to intelligently identify and ignore a
|
||
virtualenv by the presence of an activation script. Any directory deemed to
|
||
be the root of a virtual environment will not be considered during test
|
||
collection unless ``‑‑collect‑in‑virtualenv`` is given. Note also that
|
||
``norecursedirs`` takes precedence over ``‑‑collect‑in‑virtualenv``; e.g. if
|
||
you intend to run tests in a virtualenv with a base directory that matches
|
||
``'.*'`` you *must* override ``norecursedirs`` in addition to using the
|
||
``‑‑collect‑in‑virtualenv`` flag.
|
||
|
||
|
||
.. confval:: python_classes
|
||
|
||
One or more name prefixes or glob-style patterns determining which classes
|
||
are considered for test collection. Search for multiple glob patterns by
|
||
adding a space between patterns. By default, pytest will consider any
|
||
class prefixed with ``Test`` as a test collection. Here is an example of how
|
||
to collect tests from classes that end in ``Suite``:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
python_classes = *Suite
|
||
|
||
Note that ``unittest.TestCase`` derived classes are always collected
|
||
regardless of this option, as ``unittest``'s own collection framework is used
|
||
to collect those tests.
|
||
|
||
|
||
.. confval:: python_files
|
||
|
||
One or more Glob-style file patterns determining which python files
|
||
are considered as test modules. Search for multiple glob patterns by
|
||
adding a space between patterns:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
python_files = test_*.py check_*.py example_*.py
|
||
|
||
Or one per line:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
python_files =
|
||
test_*.py
|
||
check_*.py
|
||
example_*.py
|
||
|
||
By default, files matching ``test_*.py`` and ``*_test.py`` will be considered
|
||
test modules.
|
||
|
||
|
||
.. confval:: python_functions
|
||
|
||
One or more name prefixes or glob-patterns determining which test functions
|
||
and methods are considered tests. Search for multiple glob patterns by
|
||
adding a space between patterns. By default, pytest will consider any
|
||
function prefixed with ``test`` as a test. Here is an example of how
|
||
to collect test functions and methods that end in ``_test``:
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
python_functions = *_test
|
||
|
||
Note that this has no effect on methods that live on a ``unittest
|
||
.TestCase`` derived class, as ``unittest``'s own collection framework is used
|
||
to collect those tests.
|
||
|
||
See :ref:`change naming conventions` for more detailed examples.
|
||
|
||
|
||
.. confval:: required_plugins
|
||
|
||
A space separated list of plugins that must be present for pytest to run.
|
||
Plugins can be listed with or without version specifiers directly following
|
||
their name. Whitespace between different version specifiers is not allowed.
|
||
If any one of the plugins is not found, emit an error.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
required_plugins = pytest-django>=3.0.0,<4.0.0 pytest-html pytest-xdist>=1.0.0
|
||
|
||
|
||
.. confval:: testpaths
|
||
|
||
|
||
|
||
Sets list of directories that should be searched for tests when
|
||
no specific directories, files or test ids are given in the command line when
|
||
executing pytest from the :ref:`rootdir <rootdir>` directory.
|
||
Useful when all project tests are in a known location to speed up
|
||
test collection and to avoid picking up undesired tests by accident.
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
testpaths = testing doc
|
||
|
||
This tells pytest to only look for tests in ``testing`` and ``doc``
|
||
directories when executing from the root directory.
|
||
|
||
|
||
.. confval:: usefixtures
|
||
|
||
List of fixtures that will be applied to all test functions; this is semantically the same to apply
|
||
the ``@pytest.mark.usefixtures`` marker to all test functions.
|
||
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
usefixtures =
|
||
clean_db
|
||
|
||
|
||
.. confval:: xfail_strict
|
||
|
||
If set to ``True``, tests marked with ``@pytest.mark.xfail`` that actually succeed will by default fail the
|
||
test suite.
|
||
For more information, see :ref:`xfail strict tutorial`.
|
||
|
||
|
||
.. code-block:: ini
|
||
|
||
[pytest]
|
||
xfail_strict = True
|
||
|
||
|
||
.. _`command-line-flags`:
|
||
|
||
Command-line Flags
|
||
------------------
|
||
|
||
All the command-line flags can be obtained by running ``pytest --help``::
|
||
|
||
$ pytest --help
|
||
usage: pytest [options] [file_or_dir] [file_or_dir] [...]
|
||
|
||
positional arguments:
|
||
file_or_dir
|
||
|
||
general:
|
||
-k EXPRESSION only run tests which match the given substring
|
||
expression. An expression is a python evaluatable
|
||
expression where all names are substring-matched
|
||
against test names and their parent classes.
|
||
Example: -k 'test_method or test_other' matches all
|
||
test functions and classes whose name contains
|
||
'test_method' or 'test_other', while -k 'not
|
||
test_method' matches those that don't contain
|
||
'test_method' in their names. -k 'not test_method
|
||
and not test_other' will eliminate the matches.
|
||
Additionally keywords are matched to classes and
|
||
functions containing extra names in their
|
||
'extra_keyword_matches' set, as well as functions
|
||
which have names assigned directly to them. The
|
||
matching is case-insensitive.
|
||
-m MARKEXPR only run tests matching given mark expression.
|
||
For example: -m 'mark1 and not mark2'.
|
||
--markers show markers (builtin, plugin and per-project ones).
|
||
-x, --exitfirst exit instantly on first error or failed test.
|
||
--fixtures, --funcargs
|
||
show available fixtures, sorted by plugin appearance
|
||
(fixtures with leading '_' are only shown with '-v')
|
||
--fixtures-per-test show fixtures per test
|
||
--pdb start the interactive Python debugger on errors or
|
||
KeyboardInterrupt.
|
||
--pdbcls=modulename:classname
|
||
start a custom interactive Python debugger on
|
||
errors. For example:
|
||
--pdbcls=IPython.terminal.debugger:TerminalPdb
|
||
--trace Immediately break when running each test.
|
||
--capture=method per-test capturing method: one of fd|sys|no|tee-sys.
|
||
-s shortcut for --capture=no.
|
||
--runxfail report the results of xfail tests as if they were
|
||
not marked
|
||
--lf, --last-failed rerun only the tests that failed at the last run (or
|
||
all if none failed)
|
||
--ff, --failed-first run all tests, but run the last failures first.
|
||
This may re-order tests and thus lead to repeated
|
||
fixture setup/teardown.
|
||
--nf, --new-first run tests from new files first, then the rest of the
|
||
tests sorted by file mtime
|
||
--cache-show=[CACHESHOW]
|
||
show cache contents, don't perform collection or
|
||
tests. Optional argument: glob (default: '*').
|
||
--cache-clear remove all cache contents at start of test run.
|
||
--lfnf={all,none}, --last-failed-no-failures={all,none}
|
||
which tests to run with no previously (known)
|
||
failures.
|
||
--sw, --stepwise exit on test failure and continue from last failing
|
||
test next time
|
||
--sw-skip, --stepwise-skip
|
||
ignore the first failing test but stop on the next
|
||
failing test
|
||
|
||
reporting:
|
||
--durations=N show N slowest setup/test durations (N=0 for all).
|
||
--durations-min=N Minimal duration in seconds for inclusion in slowest
|
||
list. Default 0.005
|
||
-v, --verbose increase verbosity.
|
||
--no-header disable header
|
||
--no-summary disable summary
|
||
-q, --quiet decrease verbosity.
|
||
--verbosity=VERBOSE set verbosity. Default is 0.
|
||
-r chars show extra test summary info as specified by chars:
|
||
(f)ailed, (E)rror, (s)kipped, (x)failed, (X)passed,
|
||
(p)assed, (P)assed with output, (a)ll except passed
|
||
(p/P), or (A)ll. (w)arnings are enabled by default
|
||
(see --disable-warnings), 'N' can be used to reset
|
||
the list. (default: 'fE').
|
||
--disable-warnings, --disable-pytest-warnings
|
||
disable warnings summary
|
||
-l, --showlocals show locals in tracebacks (disabled by default).
|
||
--tb=style traceback print mode
|
||
(auto/long/short/line/native/no).
|
||
--show-capture={no,stdout,stderr,log,all}
|
||
Controls how captured stdout/stderr/log is shown on
|
||
failed tests. Default is 'all'.
|
||
--full-trace don't cut any tracebacks (default is to cut).
|
||
--color=color color terminal output (yes/no/auto).
|
||
--code-highlight={yes,no}
|
||
Whether code should be highlighted (only if --color
|
||
is also enabled)
|
||
--pastebin=mode send failed|all info to bpaste.net pastebin service.
|
||
--junit-xml=path create junit-xml style report file at given path.
|
||
--junit-prefix=str prepend prefix to classnames in junit-xml output
|
||
|
||
pytest-warnings:
|
||
-W PYTHONWARNINGS, --pythonwarnings=PYTHONWARNINGS
|
||
set which warnings to report, see -W option of
|
||
python itself.
|
||
--maxfail=num exit after first num failures or errors.
|
||
--strict-config any warnings encountered while parsing the `pytest`
|
||
section of the configuration file raise errors.
|
||
--strict-markers markers not registered in the `markers` section of
|
||
the configuration file raise errors.
|
||
--strict (deprecated) alias to --strict-markers.
|
||
-c file load configuration from `file` instead of trying to
|
||
locate one of the implicit configuration files.
|
||
--continue-on-collection-errors
|
||
Force test execution even if collection errors
|
||
occur.
|
||
--rootdir=ROOTDIR Define root directory for tests. Can be relative
|
||
path: 'root_dir', './root_dir',
|
||
'root_dir/another_dir/'; absolute path:
|
||
'/home/user/root_dir'; path with variables:
|
||
'$HOME/root_dir'.
|
||
|
||
collection:
|
||
--collect-only, --co only collect tests, don't execute them.
|
||
--pyargs try to interpret all arguments as python packages.
|
||
--ignore=path ignore path during collection (multi-allowed).
|
||
--ignore-glob=path ignore path pattern during collection (multi-
|
||
allowed).
|
||
--deselect=nodeid_prefix
|
||
deselect item (via node id prefix) during collection
|
||
(multi-allowed).
|
||
--confcutdir=dir only load conftest.py's relative to specified dir.
|
||
--noconftest Don't load any conftest.py files.
|
||
--keep-duplicates Keep duplicate tests.
|
||
--collect-in-virtualenv
|
||
Don't ignore tests in a local virtualenv directory
|
||
--import-mode={prepend,append,importlib}
|
||
prepend/append to sys.path when importing test
|
||
modules and conftest files, default is to prepend.
|
||
--doctest-modules run doctests in all .py modules
|
||
--doctest-report={none,cdiff,ndiff,udiff,only_first_failure}
|
||
choose another output format for diffs on doctest
|
||
failure
|
||
--doctest-glob=pat doctests file matching pattern, default: test*.txt
|
||
--doctest-ignore-import-errors
|
||
ignore doctest ImportErrors
|
||
--doctest-continue-on-failure
|
||
for a given doctest, continue to run after the first
|
||
failure
|
||
|
||
test session debugging and configuration:
|
||
--basetemp=dir base temporary directory for this test run.(warning:
|
||
this directory is removed if it exists)
|
||
-V, --version display pytest version and information about
|
||
plugins.When given twice, also display information
|
||
about plugins.
|
||
-h, --help show help message and configuration info
|
||
-p name early-load given plugin module name or entry point
|
||
(multi-allowed).
|
||
To avoid loading of plugins, use the `no:` prefix,
|
||
e.g. `no:doctest`.
|
||
--trace-config trace considerations of conftest.py files.
|
||
--debug store internal tracing debug information in
|
||
'pytestdebug.log'.
|
||
-o OVERRIDE_INI, --override-ini=OVERRIDE_INI
|
||
override ini option with "option=value" style, e.g.
|
||
`-o xfail_strict=True -o cache_dir=cache`.
|
||
--assert=MODE Control assertion debugging tools.
|
||
'plain' performs no assertion debugging.
|
||
'rewrite' (the default) rewrites assert statements
|
||
in test modules on import to provide assert
|
||
expression information.
|
||
--setup-only only setup fixtures, do not execute tests.
|
||
--setup-show show setup of fixtures while executing tests.
|
||
--setup-plan show what fixtures and tests would be executed but
|
||
don't execute anything.
|
||
|
||
logging:
|
||
--log-level=LEVEL level of messages to catch/display.
|
||
Not set by default, so it depends on the root/parent
|
||
log handler's effective level, where it is "WARNING"
|
||
by default.
|
||
--log-format=LOG_FORMAT
|
||
log format as used by the logging module.
|
||
--log-date-format=LOG_DATE_FORMAT
|
||
log date format as used by the logging module.
|
||
--log-cli-level=LOG_CLI_LEVEL
|
||
cli logging level.
|
||
--log-cli-format=LOG_CLI_FORMAT
|
||
log format as used by the logging module.
|
||
--log-cli-date-format=LOG_CLI_DATE_FORMAT
|
||
log date format as used by the logging module.
|
||
--log-file=LOG_FILE path to a file when logging will be written to.
|
||
--log-file-level=LOG_FILE_LEVEL
|
||
log file logging level.
|
||
--log-file-format=LOG_FILE_FORMAT
|
||
log format as used by the logging module.
|
||
--log-file-date-format=LOG_FILE_DATE_FORMAT
|
||
log date format as used by the logging module.
|
||
--log-auto-indent=LOG_AUTO_INDENT
|
||
Auto-indent multiline messages passed to the logging
|
||
module. Accepts true|on, false|off or an integer.
|
||
|
||
[pytest] ini-options in the first pytest.ini|tox.ini|setup.cfg file found:
|
||
|
||
markers (linelist): markers for test functions
|
||
empty_parameter_set_mark (string):
|
||
default marker for empty parametersets
|
||
norecursedirs (args): directory patterns to avoid for recursion
|
||
testpaths (args): directories to search for tests when no files or
|
||
directories are given in the command line.
|
||
filterwarnings (linelist):
|
||
Each line specifies a pattern for
|
||
warnings.filterwarnings. Processed after
|
||
-W/--pythonwarnings.
|
||
usefixtures (args): list of default fixtures to be used with this
|
||
project
|
||
python_files (args): glob-style file patterns for Python test module
|
||
discovery
|
||
python_classes (args):
|
||
prefixes or glob names for Python test class
|
||
discovery
|
||
python_functions (args):
|
||
prefixes or glob names for Python test function and
|
||
method discovery
|
||
disable_test_id_escaping_and_forfeit_all_rights_to_community_support (bool):
|
||
disable string escape non-ascii characters, might
|
||
cause unwanted side effects(use at your own risk)
|
||
console_output_style (string):
|
||
console output: "classic", or with additional
|
||
progress information ("progress" (percentage) |
|
||
"count").
|
||
xfail_strict (bool): default for the strict parameter of xfail markers
|
||
when not given explicitly (default: False)
|
||
enable_assertion_pass_hook (bool):
|
||
Enables the pytest_assertion_pass hook.Make sure to
|
||
delete any previously generated pyc cache files.
|
||
junit_suite_name (string):
|
||
Test suite name for JUnit report
|
||
junit_logging (string):
|
||
Write captured log messages to JUnit report: one of
|
||
no|log|system-out|system-err|out-err|all
|
||
junit_log_passing_tests (bool):
|
||
Capture log information for passing tests to JUnit
|
||
report:
|
||
junit_duration_report (string):
|
||
Duration time to report: one of total|call
|
||
junit_family (string):
|
||
Emit XML for schema: one of legacy|xunit1|xunit2
|
||
doctest_optionflags (args):
|
||
option flags for doctests
|
||
doctest_encoding (string):
|
||
encoding used for doctest files
|
||
cache_dir (string): cache directory path.
|
||
log_level (string): default value for --log-level
|
||
log_format (string): default value for --log-format
|
||
log_date_format (string):
|
||
default value for --log-date-format
|
||
log_cli (bool): enable log display during test run (also known as
|
||
"live logging").
|
||
log_cli_level (string):
|
||
default value for --log-cli-level
|
||
log_cli_format (string):
|
||
default value for --log-cli-format
|
||
log_cli_date_format (string):
|
||
default value for --log-cli-date-format
|
||
log_file (string): default value for --log-file
|
||
log_file_level (string):
|
||
default value for --log-file-level
|
||
log_file_format (string):
|
||
default value for --log-file-format
|
||
log_file_date_format (string):
|
||
default value for --log-file-date-format
|
||
log_auto_indent (string):
|
||
default value for --log-auto-indent
|
||
faulthandler_timeout (string):
|
||
Dump the traceback of all threads if a test takes
|
||
more than TIMEOUT seconds to finish.
|
||
addopts (args): extra command line options
|
||
minversion (string): minimally required pytest version
|
||
required_plugins (args):
|
||
plugins that must be present for pytest to run
|
||
|
||
environment variables:
|
||
PYTEST_ADDOPTS extra command line options
|
||
PYTEST_PLUGINS comma-separated plugins to load during startup
|
||
PYTEST_DISABLE_PLUGIN_AUTOLOAD set to disable plugin auto-loading
|
||
PYTEST_DEBUG set to enable debug tracing of pytest's internals
|
||
|
||
|
||
to see available markers type: pytest --markers
|
||
to see available fixtures type: pytest --fixtures
|
||
(shown according to specified file_or_dir or current dir if not specified; fixtures with leading '_' are only shown with the '-v' option
|