How to change time for JUnit 5 test?

Question

Java

I'm testing a service using JUnit 5. In the service, before performing the action, LocalTime.now() is called and it is checked that the time is now less than 11:00. For tests, I somehow need to make LocalTime.now() in the service return the time before 11:00, regardless of the real time. How can this be checked?

Answer 1

Maybe something will help from here: https://www.baeldung.com/java-override-system-time

Answer 2

Mockito can mock static methods:
https://asolntsev.github.io/en/2020/07/11/mockito-...