Reference
=========
This page contains the full reference to pytest's API.
.. contents::
:depth: 3
:local:
Functions
---------
pytest.approx
~~~~~~~~~~~~~
.. autofunction:: _pytest.python_api.approx
pytest.fail
~~~~~~~~~~~
**Tutorial**: :ref:`skipping`
.. autofunction:: _pytest.outcomes.fail
pytest.skip
~~~~~~~~~~~
.. autofunction:: _pytest.outcomes.skip(msg, [allow_module_level=False])
pytest.importorskip
~~~~~~~~~~~~~~~~~~~
.. autofunction:: _pytest.outcomes.importorskip
pytest.xfail
~~~~~~~~~~~~
.. autofunction:: _pytest.outcomes.xfail
pytest.exit
~~~~~~~~~~~
.. autofunction:: _pytest.outcomes.exit
pytest.main
~~~~~~~~~~~
.. autofunction:: _pytest.config.main
pytest.param
~~~~~~~~~~~~~
.. autofunction:: pytest.param(*values, [id], [marks])
pytest.raises
~~~~~~~~~~~~~
**Tutorial**: :ref:`assertraises`.
.. autofunction:: pytest.raises(expected_exception: Exception, [match], [message])
:with: excinfo
pytest.deprecated_call
~~~~~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`ensuring_function_triggers`.
.. autofunction:: pytest.deprecated_call()
:with:
pytest.register_assert_rewrite
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`assertion-rewriting`.
.. autofunction:: pytest.register_assert_rewrite
pytest.warns
~~~~~~~~~~~~
**Tutorial**: :ref:`assertwarnings`
.. autofunction:: pytest.warns(expected_warning: Exception, [match])
:with:
Marks
-----
Marks can be used apply meta data to *test functions* (but not fixtures), which can then be accessed by
fixtures or plugins.
pytest.mark.filterwarnings
~~~~~~~~~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`filterwarnings`.
Add warning filters to marked test items.
.. py:function:: pytest.mark.filterwarnings(filter)
:keyword str filter:
A *warning specification string*, which is composed of contents of the tuple ``(action, message, category, module, lineno)``
as specified in `The Warnings filter <https://docs.python.org/3/library/warnings.html#warning-filter>`_ section of
the Python documentation, separated by ``":"``. Optional fields can be omitted.
For example:
.. code-block:: python
@pytest.mark.warnings("ignore:.*usage will be deprecated.*:DeprecationWarning")
def test_foo():
...
pytest.mark.parametrize
~~~~~~~~~~~~~~~~~~~~~~~
**Tutorial**: :doc:`parametrize`.
.. automethod:: _pytest.python.Metafunc.parametrize
pytest.mark.skip
~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`skip`.
Unconditionally skip a test function.
.. py:function:: pytest.mark.skip(*, reason=None)
:keyword str reason: Reason why the test function is being skipped.
pytest.mark.skipif
~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`skipif`.
Skip a test function if a condition is ``True``.
.. py:function:: pytest.mark.skipif(condition, *, reason=None)
:type condition: bool or str
:param condition: ``True/False`` if the condition should be skipped or a :ref:`condition string <string conditions>`.
:keyword str reason: Reason why the test function is being skipped.
pytest.mark.xfail
~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`xfail`.
Marks a test function as *expected to fail*.
.. py:function:: pytest.mark.xfail(condition=None, *, reason=None, raises=None, run=True, strict=False)
:type condition: bool or str
:param condition: ``True/False`` if the condition should be marked as xfail or a :ref:`condition string <string conditions>`.
:keyword str reason: Reason why the test function is marked as xfail.
:keyword Exception raises: Exception subclass expected to be raised by the test function; other exceptions will fail the test.
:keyword bool run:
If the test function should actually be executed. If ``False``, the function will always xfail and will
not be executed (useful a function is segfaulting).
:keyword bool strict:
* If ``False`` (the default) the function will be shown in the terminal output as ``xfailed`` if it fails
and as ``xpass`` if it passes. In both cases this will not cause the test suite to fail as a whole. This
is particularly useful to mark *flaky* tests (tests that random at fail) to be tackled later.
* If ``True``, the function will be shown in the terminal output as ``xfailed`` if it fails, but if it
unexpectedly passes then it will **fail** the test suite. This is particularly useful to mark functions
that are always failing and there should be a clear indication if they unexpectedly start to pass (for example
a new release of a library fixes a known bug).
custom marks
~~~~~~~~~~~~
Marks are created dynamically using the factory object ``pytest.mark`` and applied as a decorator.
For example:
.. code-block:: python
@pytest.mark.timeout(10, "slow", method="thread")
def test_function():
Will create and attach a :class:`Mark <_pytest.mark.structures.Mark>` object to the collected
:class:`Item <_pytest.nodes.Item>`, which can then be accessed by fixtures or hooks with
:meth:`Node.iter_markers <_pytest.nodes.Node.iter_markers>`. The ``mark`` object will have the following attributes:
.. code-block:: python
mark.args == (10, "slow")
mark.kwargs == {"method": "thread"}
Fixtures
--------
**Tutorial**: :ref:`fixture`.
Fixtures are requested by test functions or other fixtures by declaring them as argument names.
Example of a test requiring a fixture:
.. code-block:: python
def test_output(capsys):
print("hello")
out, err = capsys.readouterr()
assert out == "hello\n"
Example of a fixture requiring another fixture:
.. code-block:: python
@pytest.fixture
def db_session(tmpdir):
fn = tmpdir / "db.file"
return connect(str(fn))
For more details, consult the full :ref:`fixtures docs <fixture>`.
@pytest.fixture
~~~~~~~~~~~~~~~
.. autofunction:: pytest.fixture
:decorator:
config.cache
~~~~~~~~~~~~
**Tutorial**: :ref:`cache`.
The ``config.cache`` object allows other plugins and fixtures
to store and retrieve values across test runs. To access it from fixtures
request ``pytestconfig`` into your fixture and get it with ``pytestconfig.cache``.
Under the hood, the cache plugin uses the simple
``dumps``/``loads`` API of the :py:mod:`json` stdlib module.
.. currentmodule:: _pytest.cacheprovider
.. automethod:: Cache.get
.. automethod:: Cache.set
.. automethod:: Cache.makedir
capsys
~~~~~~
**Tutorial**: :doc:`capture`.
.. currentmodule:: _pytest.capture
.. autofunction:: capsys()
:no-auto-options:
Returns an instance of :py:class:`CaptureFixture`.
Example:
.. code-block:: python
def test_output(capsys):
print("hello")
captured = capsys.readouterr()
assert captured.out == "hello\n"
.. autoclass:: CaptureFixture()
:members:
capsysbinary
~~~~~~~~~~~~
**Tutorial**: :doc:`capture`.
.. autofunction:: capsysbinary()
:no-auto-options:
Returns an instance of :py:class:`CaptureFixture`.
Example:
.. code-block:: python
def test_output(capsysbinary):
print("hello")
captured = capsysbinary.readouterr()
assert captured.out == b"hello\n"
capfd
~~~~~~
**Tutorial**: :doc:`capture`.
.. autofunction:: capfd()
:no-auto-options:
Returns an instance of :py:class:`CaptureFixture`.
Example:
.. code-block:: python
def test_system_echo(capfd):
os.system('echo "hello"')
captured = capsys.readouterr()
assert captured.out == "hello\n"
capfdbinary
~~~~~~~~~~~~
**Tutorial**: :doc:`capture`.
.. autofunction:: capfdbinary()
:no-auto-options:
Returns an instance of :py:class:`CaptureFixture`.
Example:
.. code-block:: python
def test_system_echo(capfdbinary):
os.system('echo "hello"')
captured = capfdbinary.readouterr()
assert captured.out == b"hello\n"
doctest_namespace
~~~~~~~~~~~~~~~~~
**Tutorial**: :doc:`doctest`.
.. autofunction:: _pytest.doctest.doctest_namespace()
Usually this fixture is used in conjunction with another ``autouse`` fixture:
.. code-block:: python
@pytest.fixture(autouse=True)
def add_np(doctest_namespace):
doctest_namespace["np"] = numpy
For more details: :ref:`doctest_namespace`.
request
~~~~~~~
**Tutorial**: :ref:`request example`.
The ``request`` fixture is a special fixture providing information of the requesting test function.
.. autoclass:: _pytest.fixtures.FixtureRequest()
:members:
pytestconfig
~~~~~~~~~~~~
.. autofunction:: _pytest.fixtures.pytestconfig()
record_property
~~~~~~~~~~~~~~~~~~~
**Tutorial**: :ref:`record_property example`.
.. autofunction:: _pytest.junitxml.record_property()
caplog
~~~~~~
**Tutorial**: :doc:`logging`.
.. autofunction:: _pytest.logging.caplog()
:no-auto-options:
This returns a :class:`_pytest.logging.LogCaptureFixture` instance.
.. autoclass:: _pytest.logging.LogCaptureFixture
:members:
monkeypatch
~~~~~~~~~~~
.. currentmodule:: _pytest.monkeypatch
**Tutorial**: :doc:`monkeypatch`.
.. autofunction:: _pytest.monkeypatch.monkeypatch()
:no-auto-options:
This returns a :class:`MonkeyPatch` instance.
.. autoclass:: _pytest.monkeypatch.MonkeyPatch
:members:
testdir
~~~~~~~
.. currentmodule:: _pytest.pytester
This fixture provides a :class:`Testdir` instance useful for black-box testing of test files, making it ideal to
test plugins.
To use it, include in your top-most ``conftest.py`` file::
pytest_plugins = 'pytester'
.. autoclass:: Testdir()
:members: runpytest,runpytest_subprocess,runpytest_inprocess,makeconftest,makepyfile
.. autoclass:: RunResult()
:members:
.. autoclass:: LineMatcher()
:members:
recwarn
~~~~~~~
**Tutorial**: :ref:`assertwarnings`
.. currentmodule:: _pytest.recwarn
.. autofunction:: recwarn()
:no-auto-options:
.. autoclass:: _pytest.recwarn.WarningsRecorder()
:members:
Each recorded warning is an instance of :class:`warnings.WarningMessage`.
.. note::
:class:`RecordedWarning` was changed from a plain class to a namedtuple in pytest 3.1
.. note::
``DeprecationWarning`` and ``PendingDeprecationWarning`` are treated
differently; see :ref:`ensuring_function_triggers`.
tmpdir
~~~~~~
**Tutorial**: :doc:`tmpdir`
.. currentmodule:: _pytest.tmpdir
.. autofunction:: tmpdir()
:no-auto-options:
tmpdir_factory
~~~~~~~~~~~~~~
**Tutorial**: :ref:`tmpdir factory example`
``tmpdir_factory`` instances have the following methods:
.. currentmodule:: _pytest.tmpdir
.. automethod:: TempdirFactory.mktemp
.. automethod:: TempdirFactory.getbasetemp
Hooks
-----
**Tutorial**: :doc:`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 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
Test running hooks
~~~~~~~~~~~~~~~~~~
All runtest related hooks receive a :py:class:`pytest.Item <_pytest.main.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 :py:mod:`_pytest.runner` and maybe also
in :py:mod:`_pytest.pdb` which interacts with :py:mod:`_pytest.capture`
and its input/output capturing in order to immediately drop
into interactive debugging when a test failure occurs.
The :py:mod:`_pytest.terminal` reported specifically uses
the reporting hook to print information about a test run.
Collection hooks
~~~~~~~~~~~~~~~~
``pytest`` calls the following hooks for collecting files and directories:
.. autofunction:: pytest_collection
.. autofunction:: pytest_ignore_collect
.. autofunction:: pytest_collect_directory
.. autofunction:: pytest_collect_file
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
Reporting hooks
~~~~~~~~~~~~~~~
Session related reporting hooks:
.. autofunction:: pytest_collectstart
.. 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
And here is the central hook for reporting about
test execution:
.. autofunction:: pytest_runtest_logreport
You can also use this hook to customize assertion representation for some
types:
.. autofunction:: pytest_assertrepr_compare
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.runner.CallInfo()
:members:
Class
~~~~~
.. autoclass:: _pytest.python.Class()
:members:
:show-inheritance:
Collector
~~~~~~~~~
.. autoclass:: _pytest.nodes.Collector()
:members:
:show-inheritance:
Config
~~~~~~
.. autoclass:: _pytest.config.Config()
:members:
ExceptionInfo
~~~~~~~~~~~~~
.. autoclass:: _pytest._code.ExceptionInfo
:members:
FixtureDef
~~~~~~~~~~
.. autoclass:: _pytest.fixtures.FixtureDef()
:members:
:show-inheritance:
FSCollector
~~~~~~~~~~~
.. autoclass:: _pytest.nodes.FSCollector()
:members:
:show-inheritance:
Function
~~~~~~~~
.. autoclass:: _pytest.python.Function()
:members:
:show-inheritance:
Item
~~~~
.. autoclass:: _pytest.nodes.Item()
:members:
:show-inheritance:
MarkDecorator
~~~~~~~~~~~~~
.. autoclass:: _pytest.mark.MarkDecorator
:members:
MarkGenerator
~~~~~~~~~~~~~
.. autoclass:: _pytest.mark.MarkGenerator
:members:
MarkInfo
~~~~~~~~
.. autoclass:: _pytest.mark.MarkInfo
:members:
Mark
~~~~
.. autoclass:: _pytest.mark.structures.Mark
:members:
Metafunc
~~~~~~~~
.. autoclass:: _pytest.python.Metafunc
:members:
Module
~~~~~~
.. autoclass:: _pytest.python.Module()
:members:
:show-inheritance:
Node
~~~~
.. autoclass:: _pytest.nodes.Node()
:members:
Parser
~~~~~~
.. autoclass:: _pytest.config.argparsing.Parser()
:members:
PluginManager
~~~~~~~~~~~~~
.. autoclass:: pluggy.PluginManager()
:members:
PytestPluginManager
~~~~~~~~~~~~~~~~~~~
.. autoclass:: _pytest.config.PytestPluginManager()
:members:
:undoc-members:
:show-inheritance:
Session
~~~~~~~
.. autoclass:: _pytest.main.Session()
:members:
:show-inheritance:
TestReport
~~~~~~~~~~
.. autoclass:: _pytest.runner.TestReport()
:members:
:inherited-members:
_Result
~~~~~~~
.. autoclass:: pluggy._Result
:members:
Special Variables
-----------------
pytest treats some global variables in a special manner when defined in a test module.
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")
pytest_mark
~~~~~~~~~~~
**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 sequence of marks.
.. code-block:: python
import pytest
pytestmark = pytest.mark.webtest
.. code-block:: python
import pytest
pytestmark = (pytest.mark.integration, pytest.mark.slow)
PYTEST_DONT_REWRITE (module docstring)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The text ``PYTEST_DONT_REWRITE`` can be add to any **module docstring** to disable
:ref:`assertion rewriting <assert introspection>` for that module.
Environment Variables
---------------------
Environment variables that can be used to change pytest's behavior.
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.
PYTEST_DEBUG
~~~~~~~~~~~~
When set, pytest will print tracing and debug information.
PYTEST_PLUGINS
~~~~~~~~~~~~~~
Contains comma-separated list of modules that should be loaded as plugins:
.. code-block:: bash
export PYTEST_PLUGINS=mymodule.plugin,xdist
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.
Configuration Options
---------------------
Here is a list of builtin configuration options that may be written in a ``pytest.ini``, ``tox.ini`` or ``setup.cfg``
file, usually located at the root of your repository. All options must be under a ``[pytest]`` section
(``[tool:pytest]`` for ``setup.cfg`` files).
Configuration file options may be overwritten in the command-line by using ``-o/--override``, 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::
pytest --maxfail=2 -rf test_hello.py
Default is to add no options.
.. confval:: cache_dir
.. versionadded:: 3.2
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
.. versionadded:: 3.3
Sets the console output style while running tests:
* ``classic``: classic pytest output.
* ``progress``: like classic pytest output, but with a progress indicator.
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
.. versionadded:: 3.1
Default encoding to use to decode text files with docstrings.
:doc:`See how pytest handles doctests <doctest>`.
.. confval:: doctest_optionflags
One or more doctest flag names from the standard ``doctest`` module.
:doc:`See how pytest handles doctests <doctest>`.
.. confval:: empty_parameter_set_mark
.. versionadded:: 3.4
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)
.. 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:: filterwarnings
.. versionadded:: 3.1
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_suite_name
.. versionadded:: 3.1
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_cli_date_format
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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
.. versionadded:: 3.3
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:: log_print
.. versionadded:: 3.3
If set to ``False``, will disable displaying captured logging messages for failed tests.
.. code-block:: ini
[pytest]
log_print = False
For more information, see :ref:`logging`.
.. confval:: markers
List of markers that are allowed in test functions, enforced when ``--strict`` command-line argument is used.
You can use a marker name per line, indented from the option name.
.. code-block:: ini
[pytest]
markers =
slow
serial
.. 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 ``'.*', 'build', 'dist', 'CVS', '_darcs', '{arch}', '*.egg', 'venv'``.
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. 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. By default, pytest will consider
any file matching with ``test_*.py`` and ``*_test.py`` globs as a test
module.
.. confval:: python_functions
One or more name prefixes or glob-patterns determining which test functions
and methods are considered tests. 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:: testpaths
.. versionadded:: 2.8
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