Generate Unit Tests

Write unit tests for this [language] code using [test framework]:

CODE TO TEST:
[Paste the function/class/module]

Test cases needed:
- [ ] Happy path (normal operation)
- [ ] Edge cases
- [ ] Error conditions
- [ ] Boundary values

Mocking requirements:
- [Dependencies that need mocking]

Test style preferences:
- [Describe your testing conventions]
- Arrange-Act-Assert / Given-When-Then / other

Aim for [X]% coverage on [lines/branches/functions].