public void ProcessAsync_ExceptionWhileProcessingItem_ThrowException()
        {
            var queue          = new SingleItemQueue(new StringItem("An item"));
            var handler        = new ThrowExceptionPayloadHandler(new Exception("An exception"));
            var queueProcessor = new DefaultQueueProcessor <string>(queue, handler);

            Assert.ThrowsAsync <Exception>(() => queueProcessor.ProcessAsync());
        }
        public async Task ProcessAsync_AnItemInQueue_ReturnsTrue()
        {
            var queue          = new SingleItemQueue(new StringItem("An item"));
            var handler        = new FakePayloadHandler();
            var queueProcessor = new DefaultQueueProcessor <string>(queue, handler);

            var processed = await queueProcessor.ProcessAsync();

            Assert.IsTrue(processed);
        }