Description
Add ### unit tests for user participation in club functionality using JUnit 5 and Mockito. Current implementation lacks test coverage, which may lead to issues like duplicate membership and invalid participation states.
Tasks
- Set up test configuration for JUnit 5
- Mock dependencies using Mockito
- Write unit tests for club participation API/controller
- Test user joining a club successfully
- Test prevention of duplicate membership
- Test invalid user or club scenarios
- Verify participation states (joined, pending, left)
- Test error handling and edge cases
- Ensure good test coverage
Description
Add ### unit tests for user participation in club functionality using JUnit 5 and Mockito. Current implementation lacks test coverage, which may lead to issues like duplicate membership and invalid participation states.
Tasks