Repository: pytest-dev/pytest
File: testing/test_unraisableexception.py (Python)

Code before:

        @pytest.fixture
        def broken_del():
            yield
            obj = BrokenDel()
            del obj

        def test_it(broken_del): pass
        def test_2(): pass
        """
    )
    result = pytester.runpytest()
    assert result.ret == 0
    result.assert_outcomes(passed=2, warnings=1)
    result.stdout.fnmatch_lines(
        [
            "*= warnings summary =*",
            "test_it.py::test_it",
            "  * PytestUnraisableExceptionWarning: Exception ignored in: <function BrokenDel.__del__ at *>",
            "  ",
            "  Traceback (most recent call last):",
            "  ValueError: del is broken",
            "  Enable tracemalloc to get traceback where the object was allocated.",
            "  See https* for more info.",
            "    warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))",
        ]
    )


@pytest.mark.filterwarnings("error::pytest.PytestUnraisableExceptionWarning")
def test_unraisable_warning_error(pytester: Pytester) -> None:
    pytester.makepyfile(
        test_it=f"""
        class BrokenDel:
            def __del__(self) -> None:
                raise ValueError("del is broken")

        def test_it() -> None:
            obj = BrokenDel()
            del obj
            {"import gc; gc.collect()" * PYPY}

        def test_2(): pass
        """
    )
    result = pytester.runpytest()
    assert result.ret == pytest.ExitCode.TESTS_FAILED
    result.assert_outcomes(passed=1, failed=1)


@pytest.mark.filterwarnings("error::pytest.PytestUnraisableExceptionWarning")

Review comment (suggestion):
```suggestion
            "  ",
            "  Enable tracemalloc to get traceback where the object was allocated.",
```

Code after:
            def __del__(self):
                raise ValueError("del is broken")

        @pytest.fixture
        def broken_del():
            yield
            obj = BrokenDel()
            del obj

        def test_it(broken_del): pass
        def test_2(): pass
        """
    )
    result = pytester.runpytest()
    assert result.ret == 0
    result.assert_outcomes(passed=2, warnings=1)
    result.stdout.fnmatch_lines(
        [
            "*= warnings summary =*",
            "test_it.py::test_it",
            "  * PytestUnraisableExceptionWarning: Exception ignored in: <function BrokenDel.__del__ at *>",
            "  ",
            "  Traceback (most recent call last):",
            "  ValueError: del is broken",
            "  ",
            "  Enable tracemalloc to get traceback where the object was allocated.",
            "  See https* for more info.",
            "    warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))",
        ]
    )


@pytest.mark.filterwarnings("error::pytest.PytestUnraisableExceptionWarning")
def test_unraisable_warning_error(pytester: Pytester) -> None:
    pytester.makepyfile(
        test_it=f"""
        class BrokenDel:
            def __del__(self) -> None:
                raise ValueError("del is broken")

        def test_it() -> None:
            obj = BrokenDel()
            del obj
            {"import gc; gc.collect()" * PYPY}

        def test_2(): pass
        """
    )
    result = pytester.runpytest()
    assert result.ret == pytest.ExitCode.TESTS_FAILED
    result.assert_outcomes(passed=1, failed=1)