Function pytest_pyfunc_call

src/_pytest/python.py:161–178

(pyfuncitem: Function)

@hookimpl(trylast=True)
def pytest_pyfunc_call(pyfuncitem: Function) -> object | None:
    testfunction = pyfuncitem.obj
    if is_async_function(testfunction):
        async_fail(pyfuncitem.nodeid)
    funcargs = pyfuncitem.funcargs
    testargs = {arg: funcargs[arg] for arg in pyfuncitem._fixtureinfo.argnames}
    result = testfunction(**testargs)
    if hasattr(result, "__await__") or hasattr(result, "__aiter__"):
        async_fail(pyfuncitem.nodeid)
    elif result is not None:
        warnings.warn(
            PytestReturnNotNoneWarning(
                f"Test functions should return None, but {pyfuncitem.nodeid} returned {type(result)!r}.\n"
                "Did you mean to use `assert` instead of `return`?\n"
                "See https://docs.pytest.org/en/stable/how-to/assert.html#return-not-none for more information."
            )
        )
    return True


def pytest_collect_directory(