public async Task GetMessages_QueueCheckThrowsTransientError_ReturnsBackoffResult()
{
CancellationToken cancellationToken = new CancellationToken();
var exception = new StorageException(
new RequestResult
{
HttpStatusCode = 503
},
string.Empty,
new Exception());
_mockQueue.Setup(p => p.GetMessagesAsync(It.IsAny <int>(), It.IsAny <TimeSpan>(), null, null, cancellationToken)).Throws(exception);
var result = await _listener.ExecuteAsync(cancellationToken);
Assert.NotNull(result);
await result.Wait;
}