def METHOD_NAME(self, execute_task):
    task = execute_task('yaml_list_fields')
    assert len(task.accepted) == 2
    # Check old field
    assert 'data' in task.accepted[0]
    assert 'data' in task.accepted[1]
    task = execute_task('yaml_check_list1')
    assert len(task.accepted) == 2
    # Checks matched
    assert task.accepted[0]['title'] == 'My Entry 1 1080p HDTV'
    assert task.accepted[1]['title'] == 'My Entry 2 1080p HDTV'
    # Check no old field
    assert 'data' not in task.accepted[0]
    assert 'data' not in task.accepted[1]
    # Check ok field
    assert task.accepted[0]['newfield'] == 'new'
    assert task.accepted[1]['newfield'] == 'new'