'Negative test to incorrect tags are not allowed'

@ddt.data([','], ['/'], [('a' * (tag.MAX_TAG_LENGTH + 1))], (['a'] * (instance_obj.MAX_TAG_COUNT + 1)), [''], [1, 2, 3], {'tag': 'tag'})
def test_create_server_with_tags_incorrect_tags(self, tags):

    self.req.api_version_request = api_version_request.APIVersionRequest('2.52')
    self.assertRaises(exception.ValidationError, self._create_server, tags)
