Function test_match

testing/python/raises_group.py:359–405

()

def test_match() -> None:
    # supports match string
    with RaisesGroup(ValueError, match="bar"):
        raise ExceptionGroup("bar", (ValueError(),))

    # now also works with ^$
    with RaisesGroup(ValueError, match="^bar$"):
        raise ExceptionGroup("bar", (ValueError(),))

    # it also includes notes
    with RaisesGroup(ValueError, match="my note"):
        e = ExceptionGroup("bar", (ValueError(),))
        e.add_note("my note")
        raise e

    # and technically you can match it all with ^$
    # but you're probably better off using a RaisesExc at that point
    with RaisesGroup(ValueError, match="^bar\nmy note$"):
        e = ExceptionGroup("bar", (ValueError(),))
        e.add_note("my note")
        raise e

    with (
        fails_raises_group(
            "Regex pattern did not match the `ExceptionGroup()`.\n"
            "  Expected regex: 'foo'\n"
            "  Actual message: 'bar'"
        ),
        RaisesGroup(ValueError, match="foo"),
    ):
        raise ExceptionGroup("bar", (ValueError(),))

    # Suggest a fix for easy pitfall of adding match to the RaisesGroup instead of
    # using a RaisesExc.
    # This requires a single expected & raised exception, the expected is a type,
    # and `isinstance(raised, expected_type)`.
    with (
        fails_raises_group(
            "Regex pattern did not match the `ExceptionGroup()`.\n"
            "  Expected regex: 'foo'\n"
            "  Actual message: 'bar'\n"
            " but matched the expected `ValueError`.\n"
            " You might want `RaisesGroup(RaisesExc(ValueError, match='foo'))`"
        ),
        RaisesGroup(ValueError, match="foo"),
    ):
        raise ExceptionGroup("bar", [ValueError("foo")])


def test_check() -> None: