Move most of 'builtin' to 'reference'

This commit is contained in:
Bruno Oliveira 2018-02-26 20:27:15 -03:00
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4 changed files with 43 additions and 154 deletions

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.. _`pytest helpers`:
Pytest API and builtin fixtures
================================================
This is a list of ``pytest.*`` API functions and fixtures.
Most of the information of this page has been moved over to :ref:`reference`.
For information on plugin hooks and objects, see :ref:`plugins`.
For information on the ``pytest.mark`` mechanism, see :ref:`mark`.
For the below objects, you can also interactively ask for help, e.g. by
typing on the Python interactive prompt something like::
For information about fixtures, see :ref:`fixtures`. To see a complete list of available fixtures, type::
$ pytest -q --fixtures
You can also interactively ask for help, e.g. by typing on the Python interactive prompt something like::
import pytest
help(pytest)
.. currentmodule:: pytest
Invoking pytest interactively
---------------------------------------------------
.. autofunction:: main
More examples at :ref:`pytest.main-usage`
Helpers for assertions about Exceptions/Warnings
--------------------------------------------------------
.. autofunction:: raises
Examples at :ref:`assertraises`.
.. autofunction:: deprecated_call
Comparing floating point numbers
--------------------------------
.. autofunction:: approx
Raising a specific test outcome
--------------------------------------
You can use the following functions in your test, fixture or setup
functions to force a certain test outcome. Note that most often
you can rather use declarative marks, see :ref:`skipping`.
.. autofunction:: _pytest.outcomes.fail
.. autofunction:: _pytest.outcomes.skip
.. autofunction:: _pytest.outcomes.importorskip
.. autofunction:: _pytest.outcomes.xfail
.. autofunction:: _pytest.outcomes.exit
Fixtures and requests
-----------------------------------------------------
To mark a fixture function:
.. autofunction:: _pytest.fixtures.fixture
:noindex:
:decorator:
Tutorial at :ref:`fixtures`.
The ``request`` object that can be used from fixture functions.
.. autoclass:: _pytest.fixtures.FixtureRequest()
:members:
.. _builtinfixtures:
.. _builtinfuncargs:
Builtin fixtures/function arguments
-----------------------------------------
You can ask for available builtin or project-custom
:ref:`fixtures <fixtures>` by typing::
$ pytest -q --fixtures
cache
Return a cache object that can persist state between testing sessions.
cache.get(key, default)
cache.set(key, value)
Keys must be a ``/`` separated value, where the first part is usually the
name of your plugin or application to avoid clashes with other cache users.
Values can be any object handled by the json stdlib module.
capsys
Enable capturing of writes to sys.stdout/sys.stderr and make
captured output available via ``capsys.readouterr()`` method calls
which return a ``(out, err)`` tuple. ``out`` and ``err`` will be ``text``
objects.
capsysbinary
Enable capturing of writes to sys.stdout/sys.stderr and make
captured output available via ``capsys.readouterr()`` method calls
which return a ``(out, err)`` tuple. ``out`` and ``err`` will be ``bytes``
objects.
capfd
Enable capturing of writes to file descriptors 1 and 2 and make
captured output available via ``capfd.readouterr()`` method calls
which return a ``(out, err)`` tuple. ``out`` and ``err`` will be ``text``
objects.
capfdbinary
Enable capturing of write to file descriptors 1 and 2 and make
captured output available via ``capfdbinary.readouterr`` method calls
which return a ``(out, err)`` tuple. ``out`` and ``err`` will be
``bytes`` objects.
doctest_namespace
Inject names into the doctest namespace.
pytestconfig
the pytest config object with access to command line opts.
record_xml_property
Add extra xml properties to the tag for the calling test.
The fixture is callable with ``(name, value)``, with value being automatically
xml-encoded.
record_xml_attribute
Add extra xml attributes to the tag for the calling test.
The fixture is callable with ``(name, value)``, with value being automatically
xml-encoded
caplog
Access and control log capturing.
Captured logs are available through the following methods::
* caplog.text() -> string containing formatted log output
* caplog.records() -> list of logging.LogRecord instances
* caplog.record_tuples() -> list of (logger_name, level, message) tuples
monkeypatch
The returned ``monkeypatch`` fixture provides these
helper methods to modify objects, dictionaries or os.environ::
monkeypatch.setattr(obj, name, value, raising=True)
monkeypatch.delattr(obj, name, raising=True)
monkeypatch.setitem(mapping, name, value)
monkeypatch.delitem(obj, name, raising=True)
monkeypatch.setenv(name, value, prepend=False)
monkeypatch.delenv(name, value, raising=True)
monkeypatch.syspath_prepend(path)
monkeypatch.chdir(path)
All modifications will be undone after the requesting
test function or fixture has finished. The ``raising``
parameter determines if a KeyError or AttributeError
will be raised if the set/deletion operation has no target.
recwarn
Return a WarningsRecorder instance that provides these methods:
* ``pop(category=None)``: return last warning matching the category.
* ``clear()``: clear list of warnings
See http://docs.python.org/library/warnings.html for information
on warning categories.
tmpdir_factory
Return a TempdirFactory instance for the test session.
tmpdir
Return a temporary directory path object
which is unique to each test function invocation,
created as a sub directory of the base temporary
directory. The returned object is a `py.path.local`_
path object.
no tests ran in 0.12 seconds

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@ -14,7 +14,6 @@ Full pytest documentation
usage
existingtestsuite
assert
builtin
fixture
monkeypatch
tmpdir

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@ -172,9 +172,10 @@ Continue reading
Check out additional pytest resources to help you customize tests for your unique workflow:
* ":ref:`cmdline`" for command line invocation examples
* ":ref:`goodpractices`" for virtualenv and test layouts
* ":ref:`existingtestsuite`" for working with pre-existing tests
* ":ref:`mark`" for information on the ``pytest.mark`` mechanism
* ":ref:`fixtures`" for providing a functional baseline to your tests
* ":ref:`plugins`" for managing and writing plugins
* ":ref:`goodpractices`" for virtualenv and test layouts
.. include:: links.inc

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@ -6,7 +6,27 @@ This page contains the full reference to pytest's API.
.. contents::
:depth: 2
:local:
:local:
.. autofunction:: _pytest.python_api.approx
You can use the following functions in your test, fixture or setup
functions to force a certain test outcome. Note that most often
you can rather use declarative marks, see :ref:`skipping`.
.. autofunction:: _pytest.outcomes.fail
.. autofunction:: _pytest.outcomes.skip
.. autofunction:: _pytest.outcomes.importorskip
.. autofunction:: _pytest.outcomes.xfail
.. autofunction:: _pytest.outcomes.exit
.. autofunction:: _pytest.config.main
.. autofunction:: _pytest.python_api.raises
Examples at :ref:`assertraises`.
.. autofunction:: _pytest.recwarn.deprecated_call
.. _`hook-reference`:
@ -231,8 +251,8 @@ Example of a fixture requiring another fixture:
For more details, consult the full :ref:`fixtures docs <fixture>`.
fixture decorator signature
~~~~~~~~~~~~~~~~~~~~~~~~~~~
fixture decorator
~~~~~~~~~~~~~~~~~
.. currentmodule:: _pytest.fixtures
.. autofunction:: fixture
@ -346,3 +366,12 @@ doctest_namespace
doctest_namespace['np'] = numpy
For more details: :ref:`doctest_namespace`.
request
~~~~~~~
The ``request`` fixture is a special fixture providing information of the requesting test function.
.. autoclass:: _pytest.fixtures.FixtureRequest()
:members: