============================= test session starts ==============================
platform linux -- Python 3.14.0, pytest-8.4.2, pluggy-1.6.0
rootdir: /tmp/pytest-of-runner/pytest-0/test_fail_with_class0
collected 1 item

f.py F                                                                   [100%]

=================================== FAILURES ===================================
_____________________________ TestThing.test_fail ______________________________

self = <f.TestThing object at 0x7f5dc0b33890>

>   def test_fail(self): assert False
                         ^^^^^^^^^^^^
E   assert False

f.py:2: AssertionError
=========================== short test summary info ============================
FAILED f.py::TestThing::test_fail - assert False
============================== 1 failed in 0.01s ===============================