public async Task GetConversationMessagesReturns503IfStorageUnavailable()
 {
     mockStore.Setup(store => store.GetConversationMessages(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>(), 50))
     .ThrowsAsync(new StorageUnavailableException("Storage is unavailable!"));
     TestUtils.AssertStatusCode(HttpStatusCode.ServiceUnavailable, await myController.Get("amansour_nbilal", "11", "11", 50));
 }