Hi Sterling, Looking at pytest’s code <https://github.com/pytest-dev/pytest/blob/master/_pytest/python.py#L382>, it seems it also needs a fixtureinfo object: yield Function(name, parent=self, fixtureinfo=fixtureinfo) This feels a little more complicate than it should to me, but I guess that’s how things stand currently. Sorry for not being able to help more, I’m in a rush today. Cheers, ​ On Fri, Jan 12, 2018 at 9:51 PM Sterling Paramore <gnilrets@gmail.com> wrote:

I'm trying to build a plugin that will do something "special" with test functions that are prefixed with "case_". However, I'm having trouble collecting those and using them with fixtures.

in conftest.py I have

def pytest_pycollect_makeitem(collector, name, obj): if inspect.isfunction(obj) and (name.startswith('case_'): Function = collector._getcustomclass("Function") return Function(name, parent=collector)

and in test_mything.py I have:

class TestSomething(): @pytest.fixture def scenario(self): pass

def case_1(self, scenario): pass

But when I run the test, I get an error "TypeError: case_1() missing 1 required positional argument: 'scenario'"

How can I create the item so that it runs with the specific fixtures?

Thanks, Sterling _______________________________________________ pytest-dev mailing list pytest-dev@python.org https://mail.python.org/mailman/listinfo/pytest-dev