def METHOD_NAME(self, mock_out):
    self._init_command_args()
    self.task.command_args['--print-yaml'] = True
    self.task.process()
    tmpfile, message = mock_out.display_file.call_args.args
    assert tmpfile.startswith('/var/tmp/kiwi_xslt-')
    assert message == 'Description(YAML):'