Sourced from pytest-asyncio's releases.

pytest-asyncio 0.20.3

---

title: 'pytest-asyncio'

pytest-asyncio is a pytest plugin. It facilitates testing of code that uses the asyncio library.

Specifically, pytest-asyncio provides support for coroutines as test functions. This allows users to await code inside their tests. For example, the following code is executed as a test item by pytest:

@pytest.mark.asyncio
async def test_some_asyncio_code():
    res = await library.do_something()
    assert b"expected result" == res

Note that test classes subclassing the standard unittest library are not supported. Users are advised to use unittest.IsolatedAsyncioTestCase or an async framework such as asynctest.

pytest-asyncio is available under the Apache License 2.0.

Installation

To install pytest-asyncio, simply:

$ pip install pytest-asyncio

... (truncated)

Sourced from pytest-asyncio's changelog.

0.20.3 (22-12-08)

• Prevent DeprecationWarning to bubble up on CPython 3.10.9 and 3.11.1. [#460](https://github.com/pytest-dev/pytest-asyncio/issues/460) <https://github.com/pytest-dev/pytest-asyncio/issues/460>_

0.20.2 (22-11-11)

• Fixes an issue with async fixtures that are defined as methods on a test class not being rebound to the actual test instance. [#197](https://github.com/pytest-dev/pytest-asyncio/issues/197) <https://github.com/pytest-dev/pytest-asyncio/issues/197>_
• Replaced usage of deprecated @pytest.mark.tryfirst with @pytest.hookimpl(tryfirst=True) [#438](https://github.com/pytest-dev/pytest-asyncio/issues/438) <https://github.com/pytest-dev/pytest-asyncio/pull/438>_

0.20.1 (22-10-21)

• Fixes an issue that warned about using an old version of pytest, even though the most recent version was installed. [#430](https://github.com/pytest-dev/pytest-asyncio/issues/430) <https://github.com/pytest-dev/pytest-asyncio/issues/430>_

0.20.0 (22-10-21)

• BREAKING: Removed legacy mode. If you're upgrading from v0.19 and you haven't configured asyncio_mode = legacy, you can upgrade without taking any additional action. If you're upgrading from an earlier version or you have explicitly enabled legacy mode, you need to switch to auto or strict mode before upgrading to this version.
• Deprecate use of pytest v6.
• Fixed an issue which prevented fixture setup from being cached. [#404](https://github.com/pytest-dev/pytest-asyncio/issues/404) <https://github.com/pytest-dev/pytest-asyncio/pull/404>_

0.19.0 (22-07-13)

• BREAKING: The default asyncio_mode is now strict. [#293](https://github.com/pytest-dev/pytest-asyncio/issues/293) <https://github.com/pytest-dev/pytest-asyncio/issues/293>_
• Removes setup.py since all relevant configuration is present setup.cfg. Users requiring an editable installation of pytest-asyncio need to use pip v21.1 or newer. [#283](https://github.com/pytest-dev/pytest-asyncio/issues/283) <https://github.com/pytest-dev/pytest-asyncio/issues/283>_
• Declare support for Python 3.11.

0.18.3 (22-03-25)

• Adds pytest-trio <https://pypi.org/project/pytest-trio/>_ to the test dependencies
• Fixes a bug that caused pytest-asyncio to try to set up async pytest_trio fixtures in strict mode. [#298](https://github.com/pytest-dev/pytest-asyncio/issues/298) <https://github.com/pytest-dev/pytest-asyncio/issues/298>_

0.18.2 (22-03-03)

• Fix asyncio auto mode not marking static methods. [#295](https://github.com/pytest-dev/pytest-asyncio/issues/295) <https://github.com/pytest-dev/pytest-asyncio/issues/295>_
• Fix a compatibility issue with Hypothesis 6.39.0. [#302](https://github.com/pytest-dev/pytest-asyncio/issues/302) <https://github.com/pytest-dev/pytest-asyncio/issues/302>_

0.18.1 (22-02-10)

• Fixes a regression that prevented async fixtures from working in synchronous tests. [#286](https://github.com/pytest-dev/pytest-asyncio/issues/286) <https://github.com/pytest-dev/pytest-asyncio/issues/286>_

0.18.0 (22-02-07)

• Raise a warning if @​pytest.mark.asyncio is applied to non-async function. [#275](https://github.com/pytest-dev/pytest-asyncio/issues/275) <https://github.com/pytest-dev/pytest-asyncio/issues/275>_
• Support parametrized event_loop fixture. [#278](https://github.com/pytest-dev/pytest-asyncio/issues/278) <https://github.com/pytest-dev/pytest-asyncio/issues/278>_

0.17.2 (22-01-17)

• Require typing-extensions on Python`_

... (truncated)

• 007e8ec [fix] Prevent DeprecationWarning about existing event loops to bubble up into...
• 44ca3da Build(deps): Bump zipp from 3.10.0 to 3.11.0 in /dependencies/default (#455)
• c3c601c Build(deps): Bump pypa/gh-action-pypi-publish from 1.5.1 to 1.5.2 (#456)
• a962e2b Build(deps): Bump importlib-metadata in /dependencies/default (#454)
• 56a393a Simplify README, move most content to a separate user documentation. (#448)
• 3c78732 Build(deps): Bump hypothesis in /dependencies/default (#453)
• d6a9a72 Build(deps): Bump exceptiongroup in /dependencies/default (#451)
• 42da7a0 Build(deps): Bump hypothesis in /dependencies/default (#450)
• 0b281b1 Build(deps): Bump mypy from 0.990 to 0.991 in /dependencies/default (#446)
• d39589c Update pre-commit hooks (#449)
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