Update test scenarios for Calendar

[itswillta]

Users and events need to be provisioned first before running the performance tests. If you want to do some user provisioning but not having a tool yet, you can do it with the help of https://github.com/huy-ta/openpaas-provisioning.

To-dos

• [x] Refactor event search test(s)
• [x] Add Calendar CRUD tests
• [x] Add Event CRUD tests (with no attendees)
• [x] Add test cases for event CRUD with (lots of) attendees
• [x] Add Calendar Mix Scenario
• [x] Use Gatling simulations to provision events & calendars
• [x] Stress the People API => Add this to the Create & Update Event scenarios
• [x] Need to load static assets before doing anything
• [ ] Add test cases for recurrent events
• [x] The endpoints need to be changed once the web frontend makes direct requests to Sabre
• [ ] Integration with OIDC
• [x] Instructions to run the performance tests (a.k.a. update README.md)

PRs:

• https://github.com/OpenPaaS-Suite/openpaas-gatling/pull/16

Definition of Done

For each of the problem above, make sure:

• The PR(s) are reviewed & merged to the main branch.
• The documentation is updated accordingly (README.md).
• The tests run without any problem in the main branch on the load testing platform with 1 user. Fix any problems that arise.
• The real tests are launched.

[itswillta]

The endpoints need to be changed once the web frontend makes direct requests to Sabre

@renaudboyer @MichaelBailly Do we have a plan to ditch the DAV proxy before UPN's deployment?

[renaudboyer]

It's in progress, the '/dav/api' prefix should be configurable although we may use the same path routed to Sabre