1. Send five messages to the input queue.
2. Verify the invocation by retrieving the message from the queue:

aws sqs receive-message 
    --queue-url https://queue.amazonaws.com/855923912133/my-output-queue 
    --max-number-of-messages 5 
    --profile admin

If successful, you should get zero to five (maximum) messages in a single receive-message call. You may also check CloudWatch logs and verify the logs we printed.