As a software engineer, I often encounter situations where I need to run the same test logic with different input values. Repeating the same test with minor variations not only clutters your test classes but also violates the DRY (Don't Repeat Yourself) principle.

That’s where parameterized tests come into play. Since JUnit 5, writing these tests has become much easier and cleaner. In this post, I’ll walk you through how to use parameterized tests effectively with JUnit 5.