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"""Run testsuites written for nose."""
from _pytest import python
from _pytest import unittest
from _pytest.config import hookimpl
from _pytest.fixtures import getfixturemarker
from _pytest.nodes import Item
@hookimpl(trylast=True)
def pytest_runtest_setup(item) -> None:
if is_potential_nosetest(item):
if not call_optional(item.obj, "setup"):
# Call module level setup if there is no object level one.
call_optional(item.parent.obj, "setup")
# XXX This implies we only call teardown when setup worked.
item.addfinalizer(lambda: teardown_nose(item))
def teardown_nose(item) -> None:
if is_potential_nosetest(item):
if not call_optional(item.obj, "teardown"):
call_optional(item.parent.obj, "teardown")
def is_potential_nosetest(item: Item) -> bool:
# Extra check needed since we do not do nose style setup/teardown
# on direct unittest style classes.
return isinstance(item, python.Function) and not isinstance(
item, unittest.TestCaseFunction
)
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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