E2E Testing - Rework Registration / Invitation

[Phil91]

Current Behavior

After the rework of the invitation process the mail is only send after the process worker run the invitation and send mail process which takes at least two process worker runs. The end to end tests for the invitation and registration check the successful receiving of the invitation email, the check is done synchronous, therefor it fails since the mail is only send after the process worker run.

Expected Behavior

All End to end tests should run successful

Steps To Reproduce

Setup the end to end test configuration, execute the end to end test project

Detected in version 2.0.0 (with change to asynchronous mailing process)