Fix compatibility issues with pytest 8.1 (fixture registration)

.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
 
     - name: Install poetry
       run: |
-        python -m pip install poetry==1.6.1
+        python -m pip install poetry==1.8.2
 
     - name: Configure poetry
       run: |

CHANGES.rst

@@ -3,6 +3,7 @@ Changelog
 
 Unreleased
 ----------
+- Address another compatibility issue with pytest 8.1 (fixture registration). `#680 <https://github.com/pytest-dev/pytest-bdd/pull/680>`_
 
 7.1.1
 ----------

src/pytest_bdd/compat.py

@@ -2,20 +2,75 @@
 
 from collections.abc import Sequence
 from importlib.metadata import version
+from typing import Any
 
-from _pytest.fixtures import FixtureDef, FixtureManager
+from _pytest.fixtures import FixtureDef, FixtureManager, FixtureRequest
 from _pytest.nodes import Node
 from packaging.version import parse as parse_version
 
 pytest_version = parse_version(version("pytest"))
 
+__all__ = ["getfixturedefs", "inject_fixture"]
 
 if pytest_version.release >= (8, 1):
 
     def getfixturedefs(fixturemanager: FixtureManager, fixturename: str, node: Node) -> Sequence[FixtureDef] | None:
         return fixturemanager.getfixturedefs(fixturename, node)
 
+    def inject_fixture(request: FixtureRequest, arg: str, value: Any) -> None:
+        """Inject fixture into pytest fixture request.
+
+        :param request: pytest fixture request
+        :param arg: argument name
+        :param value: argument value
+        """
+
+        request._fixturemanager._register_fixture(
+            name=arg,
+            func=lambda: value,
+            nodeid=request.node.nodeid,
+        )
+
 else:
 
     def getfixturedefs(fixturemanager: FixtureManager, fixturename: str, node: Node) -> Sequence[FixtureDef] | None:
         return fixturemanager.getfixturedefs(fixturename, node.nodeid)
+
+    def inject_fixture(request: FixtureRequest, arg: str, value: Any) -> None:
+        """Inject fixture into pytest fixture request.
+
+        :param request: pytest fixture request
+        :param arg: argument name
+        :param value: argument value
+        """
+        fd = FixtureDef(
+            fixturemanager=request._fixturemanager,
+            baseid=None,
+            argname=arg,
+            func=lambda: value,
+            scope="function",
+            params=None,
+        )
+        fd.cached_result = (value, 0, None)
+
+        old_fd = request._fixture_defs.get(arg)
+        add_fixturename = arg not in request.fixturenames
+
+        def fin() -> None:
+            request._fixturemanager._arg2fixturedefs[arg].remove(fd)
+
+            if old_fd is not None:
+                request._fixture_defs[arg] = old_fd
+
+            if add_fixturename:
+                request._pyfuncitem._fixtureinfo.names_closure.remove(arg)
+
+        request.addfinalizer(fin)
+
+        # inject fixture definition
+        request._fixturemanager._arg2fixturedefs.setdefault(arg, []).append(fd)
+
+        # inject fixture value in request cache
+        request._fixture_defs[arg] = fd
+        if add_fixturename:
+            request._pyfuncitem._fixtureinfo.names_closure.append(arg)

src/pytest_bdd/scenario.py

@@ -23,9 +23,9 @@
 from typing_extensions import ParamSpec
 
 from . import exceptions
-from .compat import getfixturedefs
+from .compat import getfixturedefs, inject_fixture
 from .feature import get_feature, get_features
-from .steps import StepFunctionContext, get_step_fixture_name, inject_fixture
+from .steps import StepFunctionContext, get_step_fixture_name
 from .utils import CONFIG_STACK, get_args, get_caller_module_locals, get_caller_module_path
 
 if TYPE_CHECKING:

src/pytest_bdd/steps.py

@@ -42,9 +42,10 @@ def _(article):
 from typing import Any, Callable, Iterable, Literal, TypeVar
 
 import pytest
-from _pytest.fixtures import FixtureDef, FixtureRequest
+from _pytest.fixtures import FixtureRequest
 from typing_extensions import ParamSpec
 
+from . import compat
 from .parser import Step
 from .parsers import StepParser, get_parser
 from .types import GIVEN, THEN, WHEN
@@ -200,44 +201,3 @@ def find_unique_name(name: str, seen: Iterable[str]) -> str:
         new_name = f"{name}_{i}"
         if new_name not in seen:
             return new_name
-
-
-def inject_fixture(request: FixtureRequest, arg: str, value: Any) -> None:
-    """Inject fixture into pytest fixture request.
-
-    :param request: pytest fixture request
-    :param arg: argument name
-    :param value: argument value
-    """
-
-    fd = FixtureDef(
-        fixturemanager=request._fixturemanager,
-        baseid=None,
-        argname=arg,
-        func=lambda: value,
-        scope="function",
-        params=None,
-    )
-    fd.cached_result = (value, 0, None)
-
-    old_fd = request._fixture_defs.get(arg)
-    add_fixturename = arg not in request.fixturenames
-
-    def fin() -> None:
-        request._fixturemanager._arg2fixturedefs[arg].remove(fd)
-
-        if old_fd is not None:
-            request._fixture_defs[arg] = old_fd
-
-        if add_fixturename:
-            request._pyfuncitem._fixtureinfo.names_closure.remove(arg)
-
-    request.addfinalizer(fin)
-
-    # inject fixture definition
-    request._fixturemanager._arg2fixturedefs.setdefault(arg, []).append(fd)
-
-    # inject fixture value in request cache
-    request._fixture_defs[arg] = fd
-    if add_fixturename:
-        request._pyfuncitem._fixtureinfo.names_closure.append(arg)

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 distshare = {homedir}/.tox/distshare
-envlist = py{3.8,3.9,3.10,3.11}-pytest{6.2,7.0,7.1,7.2,7.3,7.4,latest}-coverage
-          py{3.12,3.13}-pytest{7.3,7.4,latest}-coverage
+envlist = py{3.8,3.9,3.10,3.11}-pytest{6.2,7.0,7.1,7.2,7.3,7.4,8.0,8.1,latest}-coverage
+          py{3.12,3.13}-pytest{7.3,7.4,8.0,8.1,latest}-coverage
           py3.12-pytestlatest-xdist-coverage
           mypy
 
@@ -12,6 +12,8 @@ setenv =
     xdist: _PYTEST_MORE_ARGS=-n3 -rfsxX
 deps =
     pytestlatest: pytest
+    pytest8.1: pytest~=8.1.0
+    pytest8.0: pytest~=8.0.0
     pytest7.4: pytest~=7.4.0
     pytest7.3: pytest~=7.3.0
     pytest7.2: pytest~=7.2.0