"""Run testsuites written for nose."""
import warnings
from _pytest.config import hookimpl
from _pytest.deprecated import NOSE_SUPPORT
from _pytest.fixtures import getfixturemarker
from _pytest.nodes import Item
from _pytest.python import Function
from _pytest.unittest import TestCaseFunction
@hookimpl(trylast=True)
def pytest_runtest_setup(item: Item) -> None:
if not isinstance(item, Function):
return
# Don't do nose style setup/teardown on direct unittest style classes.
if isinstance(item, TestCaseFunction):
return
# Capture the narrowed type of item for the teardown closure,
# see https://github.com/python/mypy/issues/2608
func = item
call_optional(func.obj, "setup", func.nodeid)
func.addfinalizer(lambda: call_optional(func.obj, "teardown", func.nodeid))
# NOTE: Module- and class-level fixtures are handled in python.py
# with `pluginmanager.has_plugin("nose")` checks.
# It would have been nicer to implement them outside of core, but
# it's not straightforward.
def call_optional(obj: object, name: str, nodeid: str) -> bool:
method = getattr(obj, name, None)
if method is None:
return False
is_fixture = getfixturemarker(method) is not None
if is_fixture:
return False
if not callable(method):
return False
# Warn about deprecation of this plugin.
method_name = getattr(method, "__name__", str(method))
warnings.warn(
NOSE_SUPPORT.format(nodeid=nodeid, method=method_name, stage=name), stacklevel=2
)
# If there are any problems allow the exception to raise rather than
# silently ignoring it.
method()
return True
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