PowerMockito：如何模拟最终的静态变量初始化

Question

I'm writing test cases for Legacy code. I have a scenario like this.

class A
{
  static final X = getUI().getResourceX();

  A(){}

  ....some methods to test....

}

I have to create spy object from class A . But while creating object it calls getUI method which returns null and it caused a NullpointerException. So, how I eliminate getting null from getUI method?

Answer 1

First I would advise to have a look here: How to mock a static final variable using JUnit, EasyMock or PowerMock

In general, to fix your issue you can go with this:

     Mockito.when(getUI().getResourceX()).thenReturn(whatYouNeed);