empty_parameter_set_mark = xfail + --runxfail => crash #4497
Description
This started as a "hmm... that's weird" and ended at a crash. go figure.
This is super low priority and more of a result of "pytest has sooo many options!"
Today I learned that this generates a single test which is always skipped
import pytest @pytest.mark.parametrize( ('a', 'b'), # no cases defined yet ( ), ) def test(a, b): pass$ pytest t2.py ============================= test session starts ============================== platform linux -- Python 3.6.6, pytest-4.0.1, py-1.7.0, pluggy-0.8.0 rootdir: /tmp/t, inifile: collected 1 item t2.py s [100%] ========================== 1 skipped in 0.01 seconds ===========================But with a certain set of arguments:
$ pytest --runxfail -o empty_parameter_set_mark=xfail t2.py ============================= test session starts ============================== platform linux -- Python 3.6.6, pytest-4.0.1, py-1.7.0, pluggy-0.8.0 rootdir: /tmp/t, inifile: collected 1 item t2.py E [100%] ==================================== ERRORS ==================================== ________________________ ERROR at setup of test[a0-b0] _________________________ self = <CallInfo when='setup' exception: 'SubRequest' object has no attribute 'param'> func = <function call_runtest_hook.<locals>.<lambda> at 0x7fe789d24840> when = 'setup', treat_keyboard_interrupt_as_exception = False def __init__(self, func, when, treat_keyboard_interrupt_as_exception=False): #: context of invocation: one of "setup", "call", #: "teardown", "memocollect" self.when = when self.start = time() try: > self.result = func() venv/lib/python3.6/site-packages/_pytest/runner.py:211: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ venv/lib/python3.6/site-packages/_pytest/runner.py:193: in <lambda> lambda: ihook(item=item, **kwds), venv/lib/python3.6/site-packages/pluggy/hooks.py:284: in __call__ return self._hookexec(self, self.get_hookimpls(), kwargs) venv/lib/python3.6/site-packages/pluggy/manager.py:67: in _hookexec return self._inner_hookexec(hook, methods, kwargs) venv/lib/python3.6/site-packages/pluggy/manager.py:61: in <lambda> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False, venv/lib/python3.6/site-packages/_pytest/runner.py:114: in pytest_runtest_setup item.session._setupstate.prepare(item) venv/lib/python3.6/site-packages/_pytest/runner.py:381: in prepare col.setup() venv/lib/python3.6/site-packages/_pytest/python.py:1442: in setup fixtures.fillfixtures(self) venv/lib/python3.6/site-packages/_pytest/fixtures.py:297: in fillfixtures request._fillfixtures() venv/lib/python3.6/site-packages/_pytest/fixtures.py:470: in _fillfixtures item.funcargs[argname] = self.getfixturevalue(argname) venv/lib/python3.6/site-packages/_pytest/fixtures.py:517: in getfixturevalue return self._get_active_fixturedef(argname).cached_result[0] venv/lib/python3.6/site-packages/_pytest/fixtures.py:540: in _get_active_fixturedef self._compute_fixture_value(fixturedef) venv/lib/python3.6/site-packages/_pytest/fixtures.py:626: in _compute_fixture_value fixturedef.execute(request=subrequest) venv/lib/python3.6/site-packages/_pytest/fixtures.py:927: in execute return hook.pytest_fixture_setup(fixturedef=self, request=request) venv/lib/python3.6/site-packages/pluggy/hooks.py:284: in __call__ return self._hookexec(self, self.get_hookimpls(), kwargs) venv/lib/python3.6/site-packages/pluggy/manager.py:67: in _hookexec return self._inner_hookexec(hook, methods, kwargs) venv/lib/python3.6/site-packages/pluggy/manager.py:61: in <lambda> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False, venv/lib/python3.6/site-packages/_pytest/fixtures.py:969: in pytest_fixture_setup result = call_fixture_func(fixturefunc, request, kwargs) venv/lib/python3.6/site-packages/_pytest/fixtures.py:828: in call_fixture_func res = fixturefunc(**kwargs) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ request = <SubRequest 'a' for <Function 'test[a0-b0]'>> def get_direct_param_fixture_func(request): > return request.param E AttributeError: 'SubRequest' object has no attribute 'param' venv/lib/python3.6/site-packages/_pytest/fixtures.py:301: AttributeError =========================== 1 error in 0.26 seconds ============================