title: 'pytest-asyncio: pytest support for asyncio'
pytest-asyncio is an Apache2 licensed library, written in Python, for
testing asyncio code with pytest.
asyncio code is usually written in the form of coroutines, which makes
it slightly more difficult to test using normal testing tools.
pytest-asyncio provides useful fixtures and markers to make testing
easier.
@pytest.mark.asyncio
async def test_some_asyncio_code():
res = await library.do_something()
assert b"expected result" == res
pytest-asyncio has been strongly influenced by
pytest-tornado.
Features
fixtures for creating and injecting versions of the asyncio event
loop
fixtures for injecting unused tcp/udp ports
pytest markers for treating tests as asyncio coroutines
easy testing with non-default event loops
support for [async def]{.title-ref} fixtures and async generator
fixtures
support auto mode to handle all async fixtures and tests
automatically by asyncio; provide strict mode if a test suite
should work with different async frameworks simultaneously, e.g.
asyncio and trio.
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>_
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Bumps pytest-asyncio from 0.19.0 to 0.20.2.
Release notes
Sourced from pytest-asyncio's releases.
... (truncated)
Changelog
Sourced from pytest-asyncio's changelog.
Commits
07a1416
Prepare release of v0.20.2.dc3ad21
Build(deps): Bump pytest-trio in /dependencies/default (#441)d9faba8
Build(deps): Bump mypy from 0.982 to 0.990 in /dependencies/default (#440)fe63e34
Handle bound fixture methods correctly (#439)38fc032
Bump to pytest 7.2.0 (#438)28ba705
Build(deps): Bump hypothesis in /dependencies/default (#437)91e723a
Build(deps): Bump zipp from 3.9.0 to 3.10.0 in /dependencies/default (#434)0ca201b
Fix setuptools deprecation warning for license_file (#432)c8d0174
fix: Do not warn about outdated pytest version when pytest>=7 is installed. (...6450ddb
Prepare release of v0.20.0. (#428)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
.Dependabot commands and options
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