def METHOD_NAME(self, bash):
    """a -n|
    This test makes sure `_comp_get_words' doesn't use `echo' to
    return its value, because -n might be interpreted by `echo'
    and thus would not be returned.
    """
    output = self._test(bash, "(a -n)", 1, "a -n", 4)
    assert output == "-n,a"