Testing: Create separate tests for enrollUser and finishUserEnrollment

[pauljohanneskraft]

Problem

Currently, we are assuming the triggers all work correctly and only check the result once enrollUser and finishUserEnrollment have both been called.

Solution

Test the two functions separately expecting a certain result. Possibly even checking the runtime duration of enrollUser to stay below a certain threshold (e.g. 3-5 seconds).

Additional context

No response

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