Original: Have a module CS3223 with key event 1
Test: Add a key event to the same module by running the add module command with a new key event code
Error message: Module already exists
User experience affected if I can only add one key event to a module, since module definitely will have multiple key event e.g. exams and assignment and project etc
Original: Have a module CS3223 with key event 1 Test: Add a key event to the same module by running the add module command with a new key event code Error message: Module already exists User experience affected if I can only add one key event to a module, since module definitely will have multiple key event e.g. exams and assignment and project etc