In the first part of this series, we looked at Google Truth from the ground up - why it exists, how the subject model works, and when assertions become readable instead of cryptic.

You write a test. The test fails. You stare at the error message - and only after ten seconds do you understand what actually went wrong.

Eight years after the release of JUnit 5, the time has finally come: JUnit 6 is here. Anyone expecting an incremental update will be surprised. JUnit 6 is not just a refactoring, but a significant leap that sheds old baggage and makes the framework fit for the next decade of Java development - …