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"""Run testsuites written for nose."""
from _pytest.config import hookimpl
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
if not call_optional(func.obj, "setup"):
# Call module level setup if there is no object level one.
assert func.parent is not None
call_optional(func.parent.obj, "setup") # type: ignore[attr-defined]
def teardown_nose() -> None:
if not call_optional(func.obj, "teardown"):
assert func.parent is not None
call_optional(func.parent.obj, "teardown") # type: ignore[attr-defined]
# XXX This implies we only call teardown when setup worked.
func.addfinalizer(teardown_nose)
def call_optional(obj: object, name: 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
# If there are any problems allow the exception to raise rather than
# silently ignoring it.
method()
return True
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