protected override void Given()
 {
     Sqs.ListQueuesAsync(Arg.Any <ListQueuesRequest>()).Returns(new ListQueuesResponse {
         QueueUrls = new List <string> {
             Url
         }
     });
     Sqs.GetQueueAttributesAsync(Arg.Any <GetQueueAttributesRequest>()).Returns(new GetQueueAttributesResponse());
 }