Load Testing Script

After listening to the overview of Load Test Generator based on Locust, I think this is what we need for the load testing scenario we outlined in the Code With Us. As noted below, this a combination of generic features, some of which are for test management purposes only (e.g., request an invitation from a service by sending an HTTPS request), and others are "typical" Aries Agent controller "business logic" processing.

Basic Script

This is the script that we would like to see for our specific use case. The script has a number of general features (listed after) and those general features are assembled into the specific use case. The overall script could be altered for other use cases.

  • Start load agent by connecting to mediator
  • Request invitation from Issuer via HTTPS
  • Process invitation in Agent to contact Issuer
  • Auto-respond to Issuer
    • Accept connection
    • Receive Offer/Request/Receive Credential
  • Loop:
    • Loop (1-10 times)
      • Wait 10-60 seconds
        • Request invitation from Verifier via HTTPS
        • Process invitation in Agent for presentation/send presentation
      • End Loop
    • Wait 10-60 seconds
      • Request revocation from Issuer
      • Receive revocation notification from Issuer, delete revoked credential from wallet
      • Receive Offer/Request/Receive Credential
    • End Loop
  • End Loop

Note: We plan to soon use "Action Menu" after a revocation notification, so eventually we would want functionality to do that.

General Functions

  1. On startup, based on a configuration, connect to a mediator via its public DID.
    1. If not configured, skip the mediator.
  2. Request an out of band invitation via a configured HTTPS address.
    1. Send request, receive the invitation in the response.
  3. Automate the processing of a credential offer/request/issue.
  4. Process an invitation that is a connection request.
    1. Retain the connection ID such that it can be used later in the script (not used above).
  5. Request a revocation via a configured HTTPS address.
  6. Implement random delays of N-M seconds.
    1. No idea what best practices in load testing – good to get guidance on this. Do we try for "realistic" delays or do things as fast as we can, with as few load agents as possible.
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