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Add test for unserializable marker arguments #14133

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Add test for unserializable marker arguments #14133

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Add test for unserializable marker arguments
Vivansh27 Jan 19, 2026
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[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jan 19, 2026
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8 changes: 8 additions & 0 deletions testing/test_mark.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1344,3 +1344,11 @@ def test_fixture_disallowed_between_marks() -> None:
@pytest.mark.usefixtures("tmp_path")
def foo():
raise NotImplementedError()


def test_marker_rejects_unserializable_argument():
with pytest.raises(TypeError):
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@RonnyPfannschmidt RonnyPfannschmidt Jan 19, 2026

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We should match the error message to be specific enough


@pytest.mark.example(object())
def test_func():
pass
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