pytest-asyncio 1.2.0

1.2.0 - 2025-09-12

Added

• --asyncio-debug CLI option and asyncio_debug configuration option to enable asyncio debug mode for the default event loop. (#980)
• A pytest.UsageError for invalid configuration values of asyncio_default_fixture_loop_scope and asyncio_default_test_loop_scope. (#1189)
• Compatibility with the Pyright type checker (#731)

Fixed

• RuntimeError: There is no current event loop in thread 'MainThread' when any test unsets the event loop (such as when using asyncio.run and asyncio.Runner). (#1177)
• Deprecation warning when decorating an asynchronous fixture with @pytest.fixture in [strict]{.title-ref} mode. The warning message now refers to the correct package. (#1198)

Notes for Downstream Packagers

• Bump the minimum required version of tox to v4.28. This change is only relevant if you use the tox.ini file provided by pytest-asyncio to run tests.
• Extend dependency on typing-extensions>=4.12 from Python<3.10 to Python<3.13.

pytest-asyncio 1.1.1

v1.1.1 - 2025-09-12

Notes for Downstream Packagers

- Addresses a build problem with setuptoos-scm >= 9 caused by invalid setuptools-scm configuration in pytest-asyncio. (#1192)

pytest-asyncio 1.1.0

Added

• Propagation of ContextVars from async fixtures to other fixtures and tests on Python 3.10 and older (#127)
• Cancellation of tasks when the loop_scope ends (#200)
• Warning when the current event loop is closed by a test

Fixed

• Error about missing loop when calling functions requiring a loop in the finally clause of a task (#878)
• An error that could cause duplicate warnings to be issued

Notes for Downstream Packagers

• Added runtime dependency on backports.asyncio.runner for use with Python 3.10 and older

pytest-asyncio 1.1.0a1

1.1.0a1 - 2025-06-30

Added

• Propagation of ContextVars from async fixtures to other fixtures and tests on Python 3.10 and older (#127)
• Cancellation of tasks when the loop_scope ends (#200)
• Warning when the current event loop is closed by a test

Fixed

• Error about missing loop when calling functions requiring a loop in the finally clause of a task
  (#878)
• An error that could cause duplicate warnings to be issued

Notes for Downstream Packagers

• Added runtime dependency on backports.asyncio.runner for use with Python 3.10 and older

pytest-asyncio 1.0.0

1.0.0 - 2025-05-26

Removed

• The deprecated event_loop fixture.
  (#1106)

Added

• Prelimiary support for Python 3.14
  (#1025)

Changed

• Scoped event loops (e.g. module-scoped loops) are created once rather
  than per scope (e.g. per module). This reduces the number of fixtures
  and speeds up collection time, especially for large test suites.
  (#1107)
• The loop_scope argument to pytest.mark.asyncio no longer forces
  that a pytest Collector exists at the level of the specified scope.
  For example, a test function marked with
  pytest.mark.asyncio(loop_scope="class") no longer requires a class
  surrounding the test. This is consistent with the behavior of the
  scope argument to pytest_asyncio.fixture.
  (#1112)

Fixed

• An error caused when using pytest's [--setup-plan]{.title-ref}
  option.
  (#630)
• Unsuppressed import errors with pytest option
  --doctest-ignore-import-errors
  (#797)
• A "fixture not found" error in connection with package-scoped loops
  (#1052)

Notes for Downstream Packagers

• Removed a test that had an ordering dependency on other tests.
  (#1114)

pytest-asyncio 1.0.0a1

1.0.0a1 - 2025-05-09

Removed

• The deprecated event_loop fixture.
  (#1106)

Added

• Prelimiary support for Python 3.14
  (#1025)

Changed

• Scoped event loops (e.g. module-scoped loops) are created once rather
  than per scope (e.g. per module). This reduces the number of fixtures
  and speeds up collection time, especially for large test suites.
  (#1107)
• The loop_scope argument to pytest.mark.asyncio no longer forces
  that a pytest Collector exists at the level of the specified scope.
  For example, a test function marked with
  pytest.mark.asyncio(loop_scope="class") no longer requires a class
  surrounding the test. This is consistent with the behavior of the
  scope argument to pytest_asyncio.fixture.
  (#1112)

pytest-asyncio 0.26.0

• Adds configuration option that sets default event loop scope for all tests #793
• Improved type annotations for pytest_asyncio.fixture #1045
• Added typing-extensions as additional dependency for Python <3.10 #1045

pytest-asyncio 0.25.3

• Avoid errors in cleanup of async generators when event loop is already closed #1040

pytest-asyncio 0.25.2

• Call loop.shutdown_asyncgens() before closing the event loop to ensure async generators are closed in the same manner as asyncio.run does #1034

pytest-asyncio 0.25.1

• Fixes an issue that caused a broken event loop when a function-scoped test was executed in between two tests with wider loop scope #950
• Improves test collection speed in auto mode #1020
• Corrects the warning that is emitted upon redefining the event_loop fixture