Method test_unknown_flag

Lib/test/test_pickle.py:873–879

(self)

    @support.force_not_colorized
    def test_unknown_flag(self):
        stderr = io.StringIO()
        with self.assertRaises(SystemExit):
            # check that the parser help is shown
            with contextlib.redirect_stderr(stderr):
                _ = self.invoke_pickle('--unknown')
        self.assertStartsWith(stderr.getvalue(), 'usage: ')


def load_tests(loader, tests, pattern):