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Maybe related: #985
I'm doing mass rebuilds of packages in NixOS, with -D_GLIBCXX_DEBUG
passed to compilations that link to libstdc++. The latter fact may or may not be relevant.
I am seeing intermittent failures of TestLoadScope::test_workqueue_ordered_by_input
in pytest-xdist. It sometimes succeeds, sometimes not, probably depending on things like CPU load.
When it fails, it shows this failure:
________________ TestLoadScope.test_workqueue_ordered_by_input _________________
[gw23] linux -- Python 3.13.7 /nix/store/aj70vbwps8vslhww4p2glmi8jlbr3hp8-python3-3.13.7/bin/python3.13
self = <acceptance_test.TestLoadScope object at 0x7ffff54f0770>
pytester = <Pytester PosixPath('/build/pytest-of-nixbld/pytest-0/popen-gw23/test_workqueue_ordered_by_input0')>
def test_workqueue_ordered_by_input(self, pytester: pytest.Pytester) -> None:
test_file = """
import pytest
@pytest.mark.parametrize('i', range({}))
def test(i):
pass
"""
pytester.makepyfile(test_a=test_file.format(10), test_b=test_file.format(20))
result = pytester.runpytest(
"-n2", "--dist=loadscope", "--no-loadscope-reorder", "-v"
)
> assert get_workers_and_test_count_by_prefix(
"test_a.py::test", result.outlines
) == {"gw0": 10}
E AssertionError: assert {'gw1': 10} == {'gw0': 10}
E
E Left contains 1 more item:
E {'gw1': 10}
E Right contains 1 more item:
E {'gw0': 10}
E Use -v to get more diff
/build/pytest_xdist-3.8.0/testing/acceptance_test.py:1268: AssertionError
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