Method assert_failure

testing/__init__.py:443–451

(
        self,
        expected_error_re=None,  # type: Optional[str]
        expected_output_re=None,  # type: Optional[str]
        re_flags=0,  # type: int
    )

        self.assert_output(expected_output_re, expected_error_re, re_flags)

    def assert_failure(
        self,
        expected_error_re=None,  # type: Optional[str]
        expected_output_re=None,  # type: Optional[str]
        re_flags=0,  # type: int
    ):
        # type: (...) -> None
        assert self.return_code != 0
        self.assert_output(expected_output_re, expected_error_re, re_flags)

    def assert_output(
        self,