JUnit
The JUnit Platform serves as a foundation for launching testing frameworks on the JVM.
Marco Codes - Hibernate & JPA Tutorial (tutorial)
Crash course in Hibernate and JPA
Marco Codes - JUnit 5 (tutorial)
JUnit 5 Nice n Easy
Migrating JUnit 4 to JUnit 5 (tutorial)
Migrating your JUnit 4 test suite to JUnit 5
Writing JUnit 5 Tests (tutorial)
Writing JUnit 5 Tests