Removed exception handling (test smell)

[eas5]

Problem: The exception handling test smell occurs when a test method explicitly a passing or failing of a test method is dependent on the production method throwing an exception.

Correction: I used JUnit's exception handling to automatically pass/fail the test instead of writing custom exception handling code or throwing an exception. The original method generated two new ones: with and without the correct parameter, which must raise an exception.

[FDelporte]

Thanks @eas5 for your first contribution! Having clear and consistent tests is indeed critical in a software project, so any support and improvement is very welcome!