def on_cleanup_error(function, path, excinfo):
                click.secho("warning: failed to remove file or directory: {}\n"
                            "please delete it manually.".format(path),
                            fg="red")
def test_can_write_identifier_containing_back_ticks(self):
        escaped = cypher_escape("foo `bar`")
        assert escaped == "`foo ``bar```"