Can i mock static method whith juni5 and mockito or easymock?

Question

I need to mock a static method with junit5 (that's is very important) and mockito or easymock. I saw that powermock works only with junit 4. there exists any form to do it with junit5?

Answer 1

Mocking of static methods is not possible without PowerMock. And when you need PowerMock, it means that the code is not developed correctly, in the way it is testable. I am working on a project with Java 11, JUnit 5 and Mockito. PowerMock does not support this at all. And I doubt it will ever support it.

That being said: the only way to make it testable is to have the class-with-static-method injected into the class you need to test and then replace the implementation of the bean in the test-scope with a mock. When you inject it, you have a live object, so no need for a static method anymore.

It has benefits to change the code and use an injection framework (like Spring). I know there are situations you can't just do this. If you really can't change the implementation, just leave this for what it is and make a lot of unit tests to test the static method by itself with all kind of parameters. Just to make sure this class works as expected.