public async Task GetQueueArn_caches()
{
var settings = new SettingsHolder();
var configuration = new TransportConfiguration(settings);
var sqsClient = new MockSqsClient();
var cache = new QueueCache(sqsClient, configuration);
await cache.GetQueueArn("fakeQueueUrl");
var requestsSent = new List <string>(sqsClient.GetAttributeRequestsSent);
sqsClient.GetAttributeRequestsSent.Clear();
await cache.GetQueueArn("fakeQueueUrl");
Assert.IsEmpty(sqsClient.GetAttributeRequestsSent);
CollectionAssert.AreEqual(new List <string> {
"fakeQueueUrl"
}, requestsSent);
}