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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
- call_optional(func.obj, "setup")
- func.addfinalizer(lambda: call_optional(func.obj, "teardown"))
- # 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) -> 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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