pytest 8.2.2 breaks pytest-rerunfailures for tests that inherit unittest.TestCase
The code: (placed in new_file.py)
from unittest import TestCase
class MyTestClass(TestCase):
def test_base(self):
self.fail()Run command:
pytest new_file.py --reruns=1
Expected output: (Using pytest==8.2.1 / previous version)
self = <examples.new_file.MyTestClass testMethod=test_base>
def test_base(self):
> self.fail()
E AssertionError: None
new_file.py:5: AssertionError
Regression output: (Using pytest==8.2.2 / latest version)
self = <TestCaseFunction test_base>
def runtest(self) -> None:
from _pytest.debugging import maybe_wrap_pytest_function_for_tracing
testcase = self.instance
> assert testcase is not None
E AssertionError
The error occurs during the rerun of the test.
The failure line should be self.fail(). Instead, it's assert testcase is not None.
This causes the rerun to never happen. (The test only ran the first time)
Tested on a Mac. Here's the pip list:
Package Version
-------------------- -------
iniconfig 2.0.0
packaging 24.0
pip 24.0
pluggy 1.5.0
pytest 8.2.2
pytest-rerunfailures 14.0
pytest 8.2.2 breaks pytest-rerunfailures for tests that inherit unittest.TestCase
The code: (placed in
new_file.py)Run command:
Expected output: (Using
pytest==8.2.1/ previous version)Regression output: (Using
pytest==8.2.2/ latest version)The error occurs during the
rerunof the test.The failure line should be
self.fail(). Instead, it'sassert testcase is not None.This causes the
rerunto never happen. (The test only ran the first time)Tested on a Mac. Here's the
pip list: