Update dependency pytest to v7
This MR contains the following updates:
Package | Change | Age | Adoption | Passing | Confidence |
---|---|---|---|---|---|
pytest (source, changelog) |
==6.1.1 -> ==7.2.1
|
Release Notes
pytest-dev/pytest
v7.2.1
pytest 7.2.1 (2023-01-13)
Bug Fixes
- #10452: Fix 'importlib.abc.TraversableResources' deprecation warning in Python 3.12.
- #10457: If a test is skipped from inside a fixture, the test summary now shows the test location instead of the fixture location.
-
#10506: Fix bug where sometimes pytest would use the file system root directory as
rootdir <rootdir>
{.interpreted-text role="ref"} on Windows. - #10607: Fix a race condition when creating junitxml reports, which could occur when multiple instances of pytest execute in parallel.
- #10641: Fix a race condition when creating or updating the stepwise plugin's cache, which could occur when multiple xdist worker nodes try to simultaneously update the stepwise plugin's cache.
v7.2.0
pytest 7.2.0 (2022-10-23)
Deprecations
-
#10012: Update
pytest.PytestUnhandledCoroutineWarning
{.interpreted-text role="class"} to a deprecation; it will raise an error in pytest 8. -
#10396: pytest no longer depends on the
py
library.pytest
provides a vendored copy ofpy.error
andpy.path
modules but will use thepy
library if it is installed. If you need otherpy.*
modules, continue to install the deprecatedpy
library separately, otherwise it can usually be removed as a dependency. -
#4562: Deprecate configuring hook specs/impls using attributes/marks.
Instead use :py
pytest.hookimpl
{.interpreted-text role="func"} and :pypytest.hookspec
{.interpreted-text role="func"}. For more details, see thedocs <legacy-path-hooks-deprecated>
{.interpreted-text role="ref"}. -
#9886: The functionality for running tests written for
nose
has been officially deprecated.This includes:
- Plain
setup
andteardown
functions and methods: this might catch users by surprise, assetup()
andteardown()
are not pytest idioms, but part of thenose
support. - Setup/teardown using the @with_setup decorator.
For more details, consult the
deprecation docs <nose-deprecation>
{.interpreted-text role="ref"}. - Plain
Features
-
#9897: Added shell-style wildcard support to
testpaths
.
Improvements
-
#10218:
@pytest.mark.parametrize()
(and similar functions) now accepts anySequence[str]
for the argument names, instead of justlist[str]
andtuple[str, ...]
.(Note that
str
, which is itself aSequence[str]
, is still treated as a comma-delimited name list, as before). -
#10381: The
--no-showlocals
flag has been added. This can be passed directly to tests to override--showlocals
declared throughaddopts
. -
#3426: Assertion failures with strings in NFC and NFD forms that normalize to the same string now have a dedicated error message detailing the issue, and their utf-8 representation is expresed instead.
-
#7337: A warning is now emitted if a test function returns something other than [None]{.title-ref}. This prevents a common mistake among beginners that expect that returning a [bool]{.title-ref} (for example [return foo(a, b) == result]{.title-ref}) would cause a test to pass or fail, instead of using [assert]{.title-ref}.
-
#8508: Introduce multiline display for warning matching via :py
pytest.warns
{.interpreted-text role="func"} and enhance match comparison for :py_pytest._code.ExceptionInfo.match
{.interpreted-text role="func"} as returned by :pypytest.raises
{.interpreted-text role="func"}. -
#8646: Improve :py
pytest.raises
{.interpreted-text role="func"}. Previously passing an empty tuple would give a confusing error. We now raise immediately with a more helpful message. -
#9741: On Python 3.11, use the standard library's
tomllib
{.interpreted-text role="mod"} to parse TOML.tomli
{.interpreted-text role="mod"}` is no longer a dependency on Python 3.11. -
#9742: Display assertion message without escaped newline characters with
-vv
. -
#9823: Improved error message that is shown when no collector is found for a given file.
-
#9873: Some coloring has been added to the short test summary.
-
#9883: Normalize the help description of all command-line options.
-
#9920: Display full crash messages in
short test summary info
, when runng in a CI environment. -
#9987: Added support for hidden configuration file by allowing
.pytest.ini
as an alternative topytest.ini
.
Bug Fixes
-
#10150:
sys.stdin
{.interpreted-text role="data"} now contains all expected methods of a file-like object when capture is enabled. -
#10382: Do not break into pdb when
raise unittest.SkipTest()
appears top-level in a file. -
#7792: Marks are now inherited according to the full MRO in test classes. Previously, if a test class inherited from two or more classes, only marks from the first super-class would apply.
When inheriting marks from super-classes, marks from the sub-classes are now ordered before marks from the super-classes, in MRO order. Previously it was the reverse.
When inheriting marks from super-classes, the [pytestmark]{.title-ref} attribute of the sub-class now only contains the marks directly applied to it. Previously, it also contained marks from its super-classes. Please note that this attribute should not normally be accessed directly; use
pytest.Node.iter_markers
{.interpreted-text role="func"} instead. -
#9159: Showing inner exceptions by forcing native display in
ExceptionGroups
even when using display options other than--tb=native
. A temporary step before full implementation of pytest-native display for inner exceptions inExceptionGroups
. -
#9877: Ensure
caplog.get_records(when)
returns current/correct data after invokingcaplog.clear()
.
Improved Documentation
-
#10344: Update information on writing plugins to use
pyproject.toml
instead ofsetup.py
. - #9248: The documentation is now built using Sphinx 5.x (up from 3.x previously).
-
#9291: Update documentation on how
pytest.warns
{.interpreted-text role="func"} affectsDeprecationWarning
{.interpreted-text role="class"}.
Trivial/Internal Changes
-
#10196:
~pytest.PytestReturnNotNoneWarning
{.interpreted-text role="class"} is now a subclass of~pytest.PytestRemovedIn8Warning
{.interpreted-text role="class"}: the plan is to make returning non-None
from tests an error in the future. -
#10313: Made
_pytest.doctest.DoctestItem
exportpytest.DoctestItem
for type check and runtime purposes. Made [_pytest.doctest]{.title-ref} use internal APIs to avoid circular imports. -
#9906: Made
_pytest.compat
re-exportimportlib_metadata
in the eyes of type checkers. -
#9910: Fix default encoding warning (
EncodingWarning
) incacheprovider
- #9984: Improve the error message when we attempt to access a fixture that has been torn down. Add an additional sentence to the docstring explaining when it's not a good idea to call getfixturevalue.
v7.1.3
pytest 7.1.3 (2022-08-31)
Bug Fixes
-
#10060: When running with
--pdb
,TestCase.tearDown
is no longer called for tests when the class has been skipped viaunittest.skip
orpytest.mark.skip
. - #10190: Invalid XML characters in setup or teardown error messages are now properly escaped for JUnit XML reports.
-
#10230: Ignore
.py
files created bypyproject.toml
-based editable builds introduced in pip 21.3. -
#3396: Doctests now respect the
--import-mode
flag. -
#9514: Type-annotate
FixtureRequest.param
asAny
as a stop gap measure until8073
{.interpreted-text role="issue"} is fixed. -
#9791: Fixed a path handling code in
rewrite.py
that seems to work fine, but was incorrect and fails in some systems. -
#9917: Fixed string representation for
pytest.approx
{.interpreted-text role="func"} when used to compare tuples.
Improved Documentation
-
#9937: Explicit note that
tmpdir
{.interpreted-text role="fixture"} fixture is discouraged in favour oftmp_path
{.interpreted-text role="fixture"}.
Trivial/Internal Changes
- #10114: Replace atomicwrites dependency on windows with [os.replace]{.title-ref}.
v7.1.2
pytest 7.1.2 (2022-04-23)
Bug Fixes
-
#9726: An unnecessary
numpy
import insidepytest.approx
{.interpreted-text role="func"} was removed. -
#9820: Fix comparison of
dataclasses
withInitVar
. -
#9869: Increase
stacklevel
for theNODE_CTOR_FSPATH_ARG
deprecation to point to the user's code, not pytest. - #9871: Fix a bizarre (and fortunately rare) bug where the [temp_path]{.title-ref} fixture could raise an internal error while attempting to get the current user's username.
v7.1.1
pytest 7.1.1 (2022-03-17)
Bug Fixes
- #9767: Fixed a regression in pytest 7.1.0 where some conftest.py files outside of the source tree (e.g. in the [site-packages]{.title-ref} directory) were not picked up.
v7.1.0
pytest 7.1.0 (2022-03-13)
Breaking Changes
-
#8838: As per our policy, the following features have been deprecated in the 6.X series and are now removed:
-
pytest._fillfuncargs
function. -
pytest_warning_captured
hook - usepytest_warning_recorded
instead. -
-k -foobar
syntax - use-k 'not foobar'
instead. -
-k foobar:
syntax. -
pytest.collect
module - import frompytest
directly.
For more information consult Deprecations and Removals in the docs.
-
-
#9437: Dropped support for Python 3.6, which reached end-of-life at 2021-12-23.
Improvements
-
#5192: Fixed test output for some data types where
-v
would show less information.Also, when showing diffs for sequences,
-q
would produce full diffs instead of the expected diff. -
#9362: pytest now avoids specialized assert formatting when it is detected that the default
__eq__
is overridden inattrs
ordataclasses
. -
#9536: When
-vv
is given on command line, show skipping and xfail reasons in full instead of truncating them to fit the terminal width. -
#9644: More information about the location of resources that led Python to raise
ResourceWarning
{.interpreted-text role="class"} can now be obtained by enablingtracemalloc
{.interpreted-text role="mod"}.See
resource-warnings
{.interpreted-text role="ref"} for more information. -
#9678: More types are now accepted in the
ids
argument to@pytest.mark.parametrize
. Previously only [str]{.title-ref}, [float]{.title-ref}, [int]{.title-ref} and [bool]{.title-ref} were accepted; now [bytes]{.title-ref}, [complex]{.title-ref}, [re.Pattern]{.title-ref}, [Enum]{.title-ref} and anything with a [__name__]{.title-ref} are also accepted. -
#9692:
pytest.approx
{.interpreted-text role="func"} now raises aTypeError
{.interpreted-text role="class"} when given an unordered sequence (such asset
{.interpreted-text role="class"}).Note that this implies that custom classes which only implement
__iter__
and__len__
are no longer supported as they don't guarantee order.
Bug Fixes
-
#8242: The deprecation of raising
unittest.SkipTest
{.interpreted-text role="class"} to skip collection of tests during the pytest collection phase is reverted - this is now a supported feature again. -
#9493: Symbolic link components are no longer resolved in conftest paths. This means that if a conftest appears twice in collection tree, using symlinks, it will be executed twice. For example, given
tests/real/conftest.py tests/real/test_it.py tests/link -> tests/real
running
pytest tests
now imports the conftest twice, once astests/real/conftest.py
and once astests/link/conftest.py
. This is a fix to match a similar change made to test collection itself in pytest 6.0 (see6523
{.interpreted-text role="pull"} for details). -
#9626: Fixed count of selected tests on terminal collection summary when there were errors or skipped modules.
If there were errors or skipped modules on collection, pytest would mistakenly subtract those from the selected count.
-
#9645: Fixed regression where
--import-mode=importlib
used together withPYTHONPATH
{.interpreted-text role="envvar"} orpythonpath
{.interpreted-text role="confval"} would cause import errors in test suites. -
#9708:
pytester
{.interpreted-text role="fixture"} now requests amonkeypatch
{.interpreted-text role="fixture"} fixture instead of creating one internally. This solves some issues with tests that involve pytest environment variables. -
#9730: Malformed
pyproject.toml
files now produce a clearer error message.
v7.0.1
pytest 7.0.1 (2022-02-11)
Bug Fixes
-
#9608: Fix invalid importing of
importlib.readers
in Python 3.9. - #9610: Restore [UnitTestFunction.obj]{.title-ref} to return unbound rather than bound method. Fixes a crash during a failed teardown in unittest TestCases with non-default [__init__]{.title-ref}. Regressed in pytest 7.0.0.
-
#9636: The
pythonpath
plugin was renamed topython_path
. This avoids a conflict with thepytest-pythonpath
plugin. -
#9642: Fix running tests by id with
::
in the parametrize portion. -
#9643: Delay issuing a
~pytest.PytestWarning
{.interpreted-text role="class"} about diamond inheritance involving~pytest.Item
{.interpreted-text role="class"} and~pytest.Collector
{.interpreted-text role="class"} so it can be filtered usingstandard warning filters <warnings>
{.interpreted-text role="ref"}.
v7.0.0
pytest 7.0.0 (2022-02-03)
(Please see the full set of changes for this release also in the 7.0.0rc1 notes below)
Deprecations
-
#9488: If custom subclasses of nodes like
pytest.Item
{.interpreted-text role="class"} override the__init__
method, they should take**kwargs
. Seeuncooperative-constructors-deprecated
{.interpreted-text role="ref"} for details.Note that a deprection warning is only emitted when there is a conflict in the arguments pytest expected to pass. This deprecation was already part of pytest 7.0.0rc1 but wasn't documented.
Bug Fixes
- #9355: Fixed error message prints function decorators when using assert in Python 3.8 and above.
-
#9396: Ensure
pytest.Config.inifile
{.interpreted-text role="attr"} is available during thepytest_cmdline_main <_pytest.hookspec.pytest_cmdline_main>
{.interpreted-text role="func"} hook (regression during7.0.0rc1
).
Improved Documentation
- #9404: Added extra documentation on alternatives to common misuses of [pytest.warns(None)]{.title-ref} ahead of its deprecation.
- #9505: Clarify where the configuration files are located. To avoid confusions documentation mentions that configuration file is located in the root of the repository.
Trivial/Internal Changes
- #9521: Add test coverage to assertion rewrite path.
pytest 7.0.0rc1 (2021-12-06)
Breaking Changes
-
#7259: The
Node.reportinfo() <non-python tests>
{.interpreted-text role="ref"} function first return value type has been expanded from [py.path.local | str]{.title-ref} to [os.PathLike[str] | str]{.title-ref}.Most plugins which refer to [reportinfo()]{.title-ref} only define it as part of a custom
pytest.Item
{.interpreted-text role="class"} implementation. Since [py.path.local]{.title-ref} is a [os.PathLike[str]]{.title-ref}, these plugins are unaffacted.Plugins and users which call [reportinfo()]{.title-ref}, use the first return value and interact with it as a [py.path.local]{.title-ref}, would need to adjust by calling [py.path.local(fspath)]{.title-ref}. Although preferably, avoid the legacy [py.path.local]{.title-ref} and use [pathlib.Path]{.title-ref}, or use [item.location]{.title-ref} or [item.path]{.title-ref}, instead.
Note: pytest was not able to provide a deprecation period for this change.
-
#8246:
--version
now writes version information tostdout
rather thanstderr
. -
#8733: Drop a workaround for pyreadline that made it work with
--pdb
.The workaround was introduced in #1281 in 2015, however since then pyreadline seems to have gone unmaintained, is generating warnings, and will stop working on Python 3.10.
-
#9061: Using
pytest.approx
{.interpreted-text role="func"} in a boolean context now raises an error hinting at the proper usage.It is apparently common for users to mistakenly use
pytest.approx
like this:assert pytest.approx(actual, expected)
While the correct usage is:
assert actual == pytest.approx(expected)
The new error message helps catch those mistakes.
-
#9277: The
pytest.Instance
collector type has been removed. Importingpytest.Instance
or_pytest.python.Instance
returns a dummy type and emits a deprecation warning. Seeinstance-collector-deprecation
{.interpreted-text role="ref"} for details. -
#9308: PytestRemovedIn7Warning deprecation warnings are now errors by default.
Following our plan to remove deprecated features with as little disruption as possible, all warnings of type
PytestRemovedIn7Warning
now generate errors instead of warning messages by default.The affected features will be effectively removed in pytest 7.1, so please consult the
deprecations
{.interpreted-text role="ref"} section in the docs for directions on how to update existing code.In the pytest
7.0.X
series, it is possible to change the errors back into warnings as a stopgap measure by adding this to yourpytest.ini
file:[pytest] filterwarnings = ignore::pytest.PytestRemovedIn7Warning
But this will stop working when pytest
7.1
is released.If you have concerns about the removal of a specific feature, please add a comment to
9308
{.interpreted-text role="issue"}.
Deprecations
-
#7259:
py.path.local
arguments for hooks have been deprecated. Seethe deprecation note <legacy-path-hooks-deprecated>
{.interpreted-text role="ref"} for full details.py.path.local
arguments to Node constructors have been deprecated. Seethe deprecation note <node-ctor-fspath-deprecation>
{.interpreted-text role="ref"} for full details.::: {.note} ::: {.admonition-title} Note :::
The name of the
~_pytest.nodes.Node
{.interpreted-text role="class"} arguments and attributes (the new attribute beingpath
) is the opposite of the situation for hooks (the old argument beingpath
).This is an unfortunate artifact due to historical reasons, which should be resolved in future versions as we slowly get rid of the
py
{.interpreted-text role="pypi"} dependency (see9283
{.interpreted-text role="issue"} for a longer discussion). ::: -
#7469: Directly constructing the following classes is now deprecated:
_pytest.mark.structures.Mark
_pytest.mark.structures.MarkDecorator
_pytest.mark.structures.MarkGenerator
_pytest.python.Metafunc
_pytest.runner.CallInfo
_pytest._code.ExceptionInfo
_pytest.config.argparsing.Parser
_pytest.config.argparsing.OptionGroup
_pytest.pytester.HookRecorder
These constructors have always been considered private, but now issue a deprecation warning, which may become a hard error in pytest 8.
-
#8242: Raising
unittest.SkipTest
{.interpreted-text role="class"} to skip collection of tests during the pytest collection phase is deprecated. Usepytest.skip
{.interpreted-text role="func"} instead.Note: This deprecation only relates to using
unittest.SkipTest
{.interpreted-text role="class"} during test collection. You are probably not doing that. Ordinary usage ofunittest.SkipTest
{.interpreted-text role="class"} /unittest.TestCase.skipTest
{.interpreted-text role="meth"} /unittest.skip
{.interpreted-text role="func"} in unittest test cases is fully supported. -
#8315: Several behaviors of
Parser.addoption <pytest.Parser.addoption>
{.interpreted-text role="meth"} are now scheduled for removal in pytest 8 (deprecated since pytest 2.4.0):-
parser.addoption(..., help=".. %default ..")
- use%(default)s
instead. -
parser.addoption(..., type="int/string/float/complex")
- usetype=int
etc. instead.
-
-
#8447: Defining a custom pytest node type which is both an
pytest.Item <Item>
{.interpreted-text role="class"} and apytest.Collector <Collector>
{.interpreted-text role="class"} (e.g.pytest.File <File>
{.interpreted-text role="class"}) now issues a warning. It was never sanely supported and triggers hard to debug errors.See
the deprecation note <diamond-inheritance-deprecated>
{.interpreted-text role="ref"} for full details. -
#8592:
pytest_cmdline_preparse
{.interpreted-text role="hook"} has been officially deprecated. It will be removed in a future release. Usepytest_load_initial_conftests
{.interpreted-text role="hook"} instead.See
the deprecation note <cmdline-preparse-deprecated>
{.interpreted-text role="ref"} for full details. -
#8645:
pytest.warns(None) <pytest.warns>
{.interpreted-text role="func"} is now deprecated because many people used it to mean "this code does not emit warnings", but it actually had the effect of checking that the code emits at least one warning of any type - likepytest.warns()
orpytest.warns(Warning)
. -
#8948:
pytest.skip(msg=...) <pytest.skip>
{.interpreted-text role="func"},pytest.fail(msg=...) <pytest.fail>
{.interpreted-text role="func"} andpytest.exit(msg=...) <pytest.exit>
{.interpreted-text role="func"} signatures now accept areason
argument instead ofmsg
. Usingmsg
still works, but is deprecated and will be removed in a future release.This was changed for consistency with
pytest.mark.skip <pytest.mark.skip>
{.interpreted-text role="func"} andpytest.mark.xfail <pytest.mark.xfail>
{.interpreted-text role="func"} which both acceptreason
as an argument. -
#8174: The following changes have been made to types reachable through
pytest.ExceptionInfo.traceback
{.interpreted-text role="attr"}:- The
path
property of_pytest.code.Code
returnsPath
instead ofpy.path.local
. - The
path
property of_pytest.code.TracebackEntry
returnsPath
instead ofpy.path.local
.
There was no deprecation period for this change (sorry!).
- The
Features
-
#5196: Tests are now ordered by definition order in more cases.
In a class hierarchy, tests from base classes are now consistently ordered before tests defined on their subclasses (reverse MRO order).
-
#7132: Added two environment variables
PYTEST_THEME
{.interpreted-text role="envvar"} andPYTEST_THEME_MODE
{.interpreted-text role="envvar"} to let the users customize the pygments theme used. -
#7259: Added
cache.mkdir() <pytest.Cache.mkdir>
{.interpreted-text role="meth"}, which is similar to the existingcache.makedir() <pytest.Cache.makedir>
{.interpreted-text role="meth"}, but returns apathlib.Path
{.interpreted-text role="class"} instead of a legacypy.path.local
.Added a
paths
type toparser.addini() <pytest.Parser.addini>
{.interpreted-text role="meth"}, as inparser.addini("mypaths", "my paths", type="paths")
, which is similar to the existingpathlist
, but returns a list ofpathlib.Path
{.interpreted-text role="class"} instead of legacypy.path.local
. -
#7469: The types of objects used in pytest's API are now exported so they may be used in type annotations.
The newly-exported types are:
-
pytest.Config
forConfig <pytest.Config>
{.interpreted-text role="class"}. -
pytest.Mark
formarks <pytest.Mark>
{.interpreted-text role="class"}. -
pytest.MarkDecorator
formark decorators <pytest.MarkDecorator>
{.interpreted-text role="class"}. -
pytest.MarkGenerator
for thepytest.mark <pytest.MarkGenerator>
{.interpreted-text role="class"} singleton. -
pytest.Metafunc
for themetafunc <pytest.MarkGenerator>
{.interpreted-text role="class"} argument to thepytest_generate_tests
{.interpreted-text role="hook"} hook. -
pytest.CallInfo
for theCallInfo <pytest.CallInfo>
{.interpreted-text role="class"} type passed to various hooks. -
pytest.PytestPluginManager
forPytestPluginManager <pytest.PytestPluginManager>
{.interpreted-text role="class"}. -
pytest.ExceptionInfo
for theExceptionInfo <pytest.ExceptionInfo>
{.interpreted-text role="class"} type returned frompytest.raises
{.interpreted-text role="func"} and passed to various hooks. -
pytest.Parser
for theParser <pytest.Parser>
{.interpreted-text role="class"} type passed to thepytest_addoption
{.interpreted-text role="hook"} hook. -
pytest.OptionGroup
for theOptionGroup <pytest.OptionGroup>
{.interpreted-text role="class"} type returned from theparser.addgroup <pytest.Parser.getgroup>
{.interpreted-text role="func"} method. -
pytest.HookRecorder
for theHookRecorder <pytest.HookRecorder>
{.interpreted-text role="class"} type returned from~pytest.Pytester
{.interpreted-text role="class"}. -
pytest.RecordedHookCall
for theRecordedHookCall <pytest.HookRecorder>
{.interpreted-text role="class"} type returned from~pytest.HookRecorder
{.interpreted-text role="class"}. -
pytest.RunResult
for theRunResult <pytest.RunResult>
{.interpreted-text role="class"} type returned from~pytest.Pytester
{.interpreted-text role="class"}. -
pytest.LineMatcher
for theLineMatcher <pytest.RunResult>
{.interpreted-text role="class"} type used in~pytest.RunResult
{.interpreted-text role="class"} and others. -
pytest.TestReport
for theTestReport <pytest.TestReport>
{.interpreted-text role="class"} type used in various hooks. -
pytest.CollectReport
for theCollectReport <pytest.CollectReport>
{.interpreted-text role="class"} type used in various hooks.
Constructing most of them directly is not supported; they are only meant for use in type annotations. Doing so will emit a deprecation warning, and may become a hard-error in pytest 8.0.
Subclassing them is also not supported. This is not currently enforced at runtime, but is detected by type-checkers such as mypy.
-
-
#7856:
--import-mode=importlib <import-modes>
{.interpreted-text role="ref"} now works with features that depend on modules being on :pysys.modules
{.interpreted-text role="data"}, such aspickle
{.interpreted-text role="mod"} anddataclasses
{.interpreted-text role="mod"}. -
#8144: The following hooks now receive an additional
pathlib.Path
argument, equivalent to an existingpy.path.local
argument:-
pytest_ignore_collect
{.interpreted-text role="hook"} - Thecollection_path
parameter (equivalent to existingpath
parameter). -
pytest_collect_file
{.interpreted-text role="hook"} - Thefile_path
parameter (equivalent to existingpath
parameter). -
pytest_pycollect_makemodule
{.interpreted-text role="hook"} - Themodule_path
parameter (equivalent to existingpath
parameter). -
pytest_report_header
{.interpreted-text role="hook"} - Thestart_path
parameter (equivalent to existingstartdir
parameter). -
pytest_report_collectionfinish
{.interpreted-text role="hook"} - Thestart_path
parameter (equivalent to existingstartdir
parameter).
::: {.note} ::: {.admonition-title} Note :::
The name of the
~_pytest.nodes.Node
{.interpreted-text role="class"} arguments and attributes (the new attribute beingpath
) is the opposite of the situation for hooks (the old argument beingpath
).This is an unfortunate artifact due to historical reasons, which should be resolved in future versions as we slowly get rid of the
py
{.interpreted-text role="pypi"} dependency (see9283
{.interpreted-text role="issue"} for a longer discussion). ::: -
-
#8251: Implement
Node.path
as apathlib.Path
. Both the oldfspath
and this new attribute gets set no matter whetherpath
orfspath
(deprecated) is passed to the constructor. It is a replacement for thefspath
attribute (which represents the same path aspy.path.local
). Whilefspath
is not deprecated yet due to the ongoing migration of methods like~_pytest.Item.reportinfo
{.interpreted-text role="meth"}, we expect to deprecate it in a future release.::: {.note} ::: {.admonition-title} Note :::
The name of the
~_pytest.nodes.Node
{.interpreted-text role="class"} arguments and attributes (the new attribute beingpath
) is the opposite of the situation for hooks (the old argument beingpath
).This is an unfortunate artifact due to historical reasons, which should be resolved in future versions as we slowly get rid of the
py
{.interpreted-text role="pypi"} dependency (see9283
{.interpreted-text role="issue"} for a longer discussion). ::: -
#8421:
pytest.approx
{.interpreted-text role="func"} now works on~decimal.Decimal
{.interpreted-text role="class"} within mappings/dicts and sequences/lists. -
#8606: pytest invocations with
--fixtures-per-test
and--fixtures
have been enriched with:- Fixture location path printed with the fixture name.
- First section of the fixture's docstring printed under the fixture name.
- Whole of fixture's docstring printed under the fixture name using
--verbose
option.
-
#8761: New
version-tuple
{.interpreted-text role="ref"} attribute, which makes it simpler for users to do something depending on the pytest version (such as declaring hooks which are introduced in later versions). -
#8789: Switch TOML parser from
toml
totomli
for TOML v1.0.0 support inpyproject.toml
. -
#8920: Added
pytest.Stash
{.interpreted-text role="class"}, a facility for plugins to store their data on~pytest.Config
{.interpreted-text role="class"} and~_pytest.nodes.Node
{.interpreted-text role="class"}s in a type-safe and conflict-free manner. Seeplugin-stash
{.interpreted-text role="ref"} for details. -
#8953:
RunResult <_pytest.pytester.RunResult>
{.interpreted-text role="class"} methodassert_outcomes <_pytest.pytester.RunResult.assert_outcomes>
{.interpreted-text role="meth"} now accepts awarnings
argument to assert the total number of warnings captured. -
#8954:
--debug
flag now accepts astr
{.interpreted-text role="class"} file to route debug logs into, remains defaulted to [pytestdebug.log]{.title-ref}. -
#9023: Full diffs are now always shown for equality assertions of iterables when [CI]{.title-ref} or
BUILD_NUMBER
is found in the environment, even when-v
isn't used. -
#9113:
RunResult <_pytest.pytester.RunResult>
{.interpreted-text role="class"} methodassert_outcomes <_pytest.pytester.RunResult.assert_outcomes>
{.interpreted-text role="meth"} now accepts adeselected
argument to assert the total number of deselected tests. -
#9114: Added
pythonpath
{.interpreted-text role="confval"} setting that adds listed paths tosys.path
{.interpreted-text role="data"} for the duration of the test session. If you currently use the pytest-pythonpath or pytest-srcpaths plugins, you should be able to replace them with built-in [pythonpath]{.title-ref} setting.
Improvements
-
#7480: A deprecation scheduled to be removed in a major version X (e.g. pytest 7, 8, 9, ...) now uses warning category [PytestRemovedInXWarning]{.title-ref}, a subclass of
~pytest.PytestDeprecationWarning
{.interpreted-text role="class"}, instead ofPytestDeprecationWarning
{.interpreted-text role="class"} directly.See
backwards-compatibility
{.interpreted-text role="ref"} for more details. -
#7864: Improved error messages when parsing warning filters.
Previously pytest would show an internal traceback, which besides being ugly sometimes would hide the cause of the problem (for example an
ImportError
while importing a specific warning type). -
#8335: Improved
pytest.approx
{.interpreted-text role="func"} assertion messages for sequences of numbers.The assertion messages now dumps a table with the index and the error of each diff. Example:
> assert [1, 2, 3, 4] == pytest.approx([1, 3, 3, 5]) E assert comparison failed for 2 values: E Index | Obtained | Expected E 1 | 2 | 3 +- 3.0e-06 E 3 | 4 | 5 +- 5.0e-06
-
#8403: By default, pytest will truncate long strings in assert errors so they don't clutter the output too much, currently at
240
characters by default.However, in some cases the longer output helps, or is even crucial, to diagnose a failure. Using
-v
will now increase the truncation threshold to2400
characters, and-vv
or higher will disable truncation entirely. -
#8509: Fixed issue where
unittest.TestCase.setUpClass
{.interpreted-text role="meth"} is not called when a test has [/]{.title-ref} in its name since pytest 6.2.0.This refers to the path part in pytest node IDs, e.g.
TestClass::test_it
in the node IDtests/test_file.py::TestClass::test_it
.Now, instead of assuming that the test name does not contain
/
, it is assumed that test path does not contain::
. We plan to hopefully make both of these work in the future. -
#8803: It is now possible to add colors to custom log levels on cli log.
By using
add_color_level <_pytest.logging.add_color_level>
{.interpreted-text role="func"} from apytest_configure
hook, colors can be added:logging_plugin = config.pluginmanager.get_plugin('logging-plugin') logging_plugin.log_cli_handler.formatter.add_color_level(logging.INFO, 'cyan') logging_plugin.log_cli_handler.formatter.add_color_level(logging.SPAM, 'blue')
See
log_colors
{.interpreted-text role="ref"} for more information. -
#8822: When showing fixture paths in [--fixtures]{.title-ref} or [--fixtures-by-test]{.title-ref}, fixtures coming from pytest itself now display an elided path, rather than the full path to the file in the [site-packages]{.title-ref} directory.
-
#8898: Complex numbers are now treated like floats and integers when generating parameterization IDs.
-
#9062:
--stepwise-skip
now implicitly enables--stepwise
and can be used on its own. -
#9205:
pytest.Cache.set
{.interpreted-text role="meth"} now preserves key order when saving dicts.
Bug Fixes
-
#7124: Fixed an issue where
__main__.py
would raise anImportError
when--doctest-modules
was provided. -
#8061: Fixed failing
staticmethod
test cases if they are inherited from a parent test class. -
#8192:
testdir.makefile
now silently accepts values which don't start with.
to maintain backward compatibility with older pytest versions.pytester.makefile
now issues a clearer error if the.
is missing in theext
argument. -
#8258: Fixed issue where pytest's
faulthandler
support would not dump traceback on crashes if thefaulthandler
{.interpreted-text role="mod"} module was already enabled during pytest startup (usingpython -X dev -m pytest
for example). -
#8317: Fixed an issue where illegal directory characters derived from
getpass.getuser()
raised anOSError
. -
#8367: Fix
Class.from_parent
so it forwards extra keyword arguments to the constructor. -
#8377: The test selection options
pytest -k
andpytest -m
now support matching names containing forward slash (/
) characters. -
#8384: The
@pytest.mark.skip
decorator now correctly handles its arguments. When thereason
argument is accidentally given both positional and as a keyword (e.g. because it was confused withskipif
), aTypeError
now occurs. Before, such tests were silently skipped, and the positional argument ignored. Additionally,reason
is now documented correctly as positional or keyword (rather than keyword-only). -
#8394: Use private names for internal fixtures that handle classic setup/teardown so that they don't show up with the default
--fixtures
invocation (but they still show up with--fixtures -v
). -
#8456: The
required_plugins
{.interpreted-text role="confval"} config option now works correctly when pre-releases of plugins are installed, rather than falsely claiming that those plugins aren't installed at all. -
#8464:
-c <config file>
now also properly definesrootdir
as the directory that contains<config file>
. -
#8503:
pytest.MonkeyPatch.syspath_prepend
{.interpreted-text role="meth"} no longer fails whensetuptools
is not installed. It now only callspkg_resources.fixup_namespace_packages
{.interpreted-text role="func"} ifpkg_resources
was previously imported, because it is not needed otherwise. -
#8548: Introduce fix to handle precision width in
log-cli-format
in turn to fix output coloring for certain formats. -
#8796: Fixed internal error when skipping doctests.
-
#8983: The test selection options
pytest -k
andpytest -m
now support matching names containing backslash ([\]{.title-ref}) characters. Backslashes are treated literally, not as escape characters (the values being matched against are already escaped). -
#8990: Fix [pytest -vv]{.title-ref} crashing with an internal exception [AttributeError: 'str' object has no attribute 'relative_to']{.title-ref} in some cases.
-
#9077: Fixed confusing error message when
request.fspath
/request.path
was accessed from a session-scoped fixture. -
#9163: The end line number and end column offset are now properly set for rewritten assert statements.
-
#9169: Support for the
files
API fromimportlib.resources
within rewritten files. -
#9272: The nose compatibility module-level fixtures [setup()]{.title-ref} and [teardown()]{.title-ref} are now only called once per module, instead of for each test function. They are now called even if object-level [setup]{.title-ref}/[teardown]{.title-ref} is defined.
Improved Documentation
- #4320: Improved docs for [pytester.copy_example]{.title-ref}.
-
#5105: Add automatically generated
plugin-list
{.interpreted-text role="ref"}. The list is updated on a periodic schedule. -
#8337: Recommend numpy.testing module on
pytest.approx
{.interpreted-text role="func"} documentation. -
#8655: Help text for
--pdbcls
more accurately reflects the option's behavior. -
#9210: Remove incorrect docs about
confcutdir
being a configuration option: it can only be set through the--confcutdir
command-line option. - #9242: Upgrade readthedocs configuration to use a newer Ubuntu version` with better unicode support for PDF docs.
-
#9341: Various methods commonly used for
non-python tests
{.interpreted-text role="ref"} are now correctly documented in the reference docs. They were undocumented previously.
Trivial/Internal Changes
-
#8133: Migrate to
setuptools_scm
6.x to useSETUPTOOLS_SCM_MRETEND_VERSION_FOR_PYTEST
for more robust release tooling. -
#8174: The following changes have been made to internal pytest types/functions:
- The
_pytest.code.getfslineno()
function returnsPath
instead ofpy.path.local
. - The
_pytest.python.path_matches_patterns()
function takesPath
instead ofpy.path.local
. - The
_pytest._code.Traceback.cut()
function accepts anyos.PathLike[str]
, not justpy.path.local
.
- The
-
#8248: Internal Restructure: let
python.PyObjMixin
inherit fromnodes.Node
to carry over typing information. -
#8432: Improve error message when
pytest.skip
{.interpreted-text role="func"} is used at module level without passing [allow_module_level=True]{.title-ref}. -
#8818: Ensure
regendoc
opts out ofTOX_ENV
cachedir selection to ensure independent example test runs. -
#8913: The private
CallSpec2._arg2scopenum
attribute has been removed after an internal refactoring. -
#8967:
pytest_assertion_pass
{.interpreted-text role="hook"} is no longer considered experimental and future changes to it will be considered more carefully. - #9202: Add github action to upload coverage report to codecov instead of bash uploader.
- #9225: Changed the command used to create sdist and wheel artifacts: using the build package instead of setup.py.
- #9351: Correct minor typos in doc/en/example/special.rst.
v6.2.5
pytest 6.2.5 (2021-08-29)
Trivial/Internal Changes
v6.2.4
pytest 6.2.4 (2021-05-04)
Bug Fixes
- #8539: Fixed assertion rewriting on Python 3.10.
v6.2.3
pytest 6.2.3 (2021-04-03)
Bug Fixes
-
#8414: pytest used to create directories under
/tmp
with world-readable permissions. This means that any user in the system was able to read information written by tests in temporary directories (such as those created by thetmp_path
/tmpdir
fixture). Now the directories are created with private permissions.pytest used silenty use a pre-existing
/tmp/pytest-of-<username>
directory, even if owned by another user. This means another user could pre-create such a directory and gain control of another user's temporary directory. Now such a condition results in an error.
v6.2.2
pytest 6.2.2 (2021-01-25)
Bug Fixes
- #8152: Fixed "(<Skipped instance>)" being shown as a skip reason in the verbose test summary line when the reason is empty.
-
#8249: Fix the
faulthandler
plugin for occasions when running withtwisted.logger
and usingpytest --capture=no
.
v6.2.1
pytest 6.2.1 (2020-12-15)
Bug Fixes
-
#7678: Fixed bug where
ImportPathMismatchError
would be raised for files compiled in the host and loaded later from an UNC mounted path (Windows). -
#8132: Fixed regression in
approx
: in 6.2.0approx
no longer raisesTypeError
when dealing with non-numeric types, falling back to normal comparison. Before 6.2.0, array types like tf.DeviceArray fell through to the scalar case, and happened to compare correctly to a scalar if they had only one element. After 6.2.0, these types began failing, because they inherited neither from standard Python number hierarchy nor fromnumpy.ndarray
.approx
now converts arguments tonumpy.ndarray
if they expose the array protocol and are not scalars. This treats array-like objects like numpy arrays, regardless of size.
v6.2.0
pytest 6.2.0 (2020-12-12)
Breaking Changes
- #7808: pytest now supports python3.6+ only.
Deprecations
-
#7469: Directly constructing/calling the following classes/functions is now deprecated:
_pytest.cacheprovider.Cache
_pytest.cacheprovider.Cache.for_config()
_pytest.cacheprovider.Cache.clear_cache()
_pytest.cacheprovider.Cache.cache_dir_from_config()
_pytest.capture.CaptureFixture
_pytest.fixtures.FixtureRequest
_pytest.fixtures.SubRequest
_pytest.logging.LogCaptureFixture
_pytest.pytester.Pytester
_pytest.pytester.Testdir
_pytest.recwarn.WarningsRecorder
_pytest.recwarn.WarningsChecker
_pytest.tmpdir.TempPathFactory
_pytest.tmpdir.TempdirFactory
These have always been considered private, but now issue a deprecation warning, which may become a hard error in pytest 7.0.0.
-
#7530: The
--strict
command-line option has been deprecated, use--strict-markers
instead.We have plans to maybe in the future to reintroduce
--strict
and make it an encompassing flag for all strictness related options (--strict-markers
and--strict-config
at the moment, more might be introduced in the future). -
#7988: The
@pytest.yield_fixture
decorator/function is now deprecated. Use pytest.fixture instead.yield_fixture
has been an alias forfixture
for a very long time, so can be search/replaced safely.
Features
-
#5299: pytest now warns about unraisable exceptions and unhandled thread exceptions that occur in tests on Python>=3.8. See unraisable for more information.
-
#7425: New pytester fixture, which is identical to testdir but its methods return pathlib.Path when appropriate instead of
py.path.local
.This is part of the movement to use pathlib.Path objects internally, in order to remove the dependency to
py
in the future.Internally, the old Testdir <_pytest.pytester.Testdir> is now a thin wrapper around Pytester <_pytest.pytester.Pytester>, preserving the old interface.
-
#7695: A new hook was added, pytest_markeval_namespace which should return a dictionary. This dictionary will be used to augment the "global" variables available to evaluate skipif/xfail/xpass markers.
Pseudo example
conftest.py
:def pytest_markeval_namespace(): return {"color": "red"}
test_func.py
:@​pytest.mark.skipif("color == 'blue'", reason="Color is not red") def test_func(): assert False
-
#8006: It is now possible to construct a ~pytest.MonkeyPatch object directly as
pytest.MonkeyPatch()
, in cases when the monkeypatch fixture cannot be used. Previously some users imported it from the private _pytest.monkeypatch.MonkeyPatch namespace.Additionally, MonkeyPatch.context <pytest.MonkeyPatch.context> is now a classmethod, and can be used as
with MonkeyPatch.context() as mp: ...
. This is the recommended way to useMonkeyPatch
directly, since unlike themonkeypatch
fixture, an instance created directly is notundo()
-ed automatically.
Improvements
-
#1265: Added an
__str__
implementation to the ~pytest.pytester.LineMatcher class which is returned frompytester.run_pytest().stdout
and similar. It returns the entire output, like the existingstr()
method. -
#2044: Verbose mode now shows the reason that a test was skipped in the test's terminal line after the "SKIPPED", "XFAIL" or "XPASS".
-
#7469 The types of builtin pytest fixtures are now exported so they may be used in type annotations of test functions. The newly-exported types are:
-
pytest.FixtureRequest
for the request fixture. -
pytest.Cache
for the cache fixture. -
pytest.CaptureFixture[str]
for the capfd and capsys fixtures. -
pytest.CaptureFixture[bytes]
for the capfdbinary and capsysbinary fixtures. -
pytest.LogCaptureFixture
for the caplog fixture. -
pytest.Pytester
for the pytester fixture. -
pytest.Testdir
for the testdir fixture. -
pytest.TempdirFactory
for the tmpdir_factory fixture. -
pytest.TempPathFactory
for the tmp_path_factory fixture. -
pytest.MonkeyPatch
for the monkeypatch fixture. -
pytest.WarningsRecorder
for the recwarn fixture.
Constructing them is not supported (except for MonkeyPatch); they are only meant for use in type annotations. Doing so will emit a deprecation warning, and may become a hard-error in pytest 7.0.
Subclassing them is also not supported. This is not currently enforced at runtime, but is detected by type-checkers such as mypy.
-
-
#7527: When a comparison between namedtuple <collections.namedtuple> instances of the same type fails, pytest now shows the differing field names (possibly nested) instead of their indexes.
-
#7615: Node.warn <_pytest.nodes.Node.warn> now permits any subclass of Warning, not just PytestWarning .
-
#7701: Improved reporting when using
--collected-only
. It will now show the number of collected tests in the summary stats. -
#7710: Use strict equality comparison for non-numeric types in pytest.approx instead of raising TypeError.
This was the undocumented behavior before 3.7, but is now officially a supported feature.
-
#7938: New
--sw-skip
argument which is a shorthand for--stepwise-skip
. -
#8023: Added
'node_modules'
to default value for norecursedirs. -
#8032: doClassCleanups <unittest.TestCase.doClassCleanups> (introduced in unittest in Python and 3.8) is now called appropriately.
Bug Fixes
- #4824: Fixed quadratic behavior and improved performance of collection of items using autouse fixtures and xunit fixtures.
-
#7758: Fixed an issue where some files in packages are getting lost from
--lf
even though they contain tests that failed. Regressed in pytest 5.4.0. - #7911: Directories created by by tmp_path and tmpdir are now considered stale after 3 days without modification (previous value was 3 hours) to avoid deleting directories still in use in long running test suites.
- #7913: Fixed a crash or hang in pytester.spawn <_pytest.pytester.Pytester.spawn> when the readline module is involved.
- #7951: Fixed handling of recursive symlinks when collecting tests.
- #7981: Fixed symlinked directories not being followed during collection. Regressed in pytest 6.1.0.
-
#8016: Fixed only one doctest being collected when using
pytest --doctest-modules path/to/an/__init__.py
.
Improved Documentation
- #7429: Add more information and use cases about skipping doctests.
-
#7780: Classes which should not be inherited from are now marked
final class
in the API reference. -
#7872:
_pytest.config.argparsing.Parser.addini()
accepts explicitNone
and"string"
. - #7878: In pull request section, ask to commit after editing changelog and authors file.
Trivial/Internal Changes
-
#7802: The
attrs
dependency requirement is now >=19.2.0 instead of >=17.4.0. - #8014: .pyc files created by pytest's assertion rewriting now conform to the newer PEP-552 format on Python>=3.7. (These files are internal and only interpreted by pytest itself.)
v6.1.2
pytest 6.1.2 (2020-10-28)
Bug Fixes
-
#7758: Fixed an issue where some files in packages are getting lost from
--lf
even though they contain tests that failed. Regressed in pytest 5.4.0. - #7911: Directories created by tmpdir are now considered stale after 3 days without modification (previous value was 3 hours) to avoid deleting directories still in use in long running test suites.
Improved Documentation
-
#7815: Improve deprecation warning message for
pytest._fillfuncargs()
.
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