如何使用EasyMock从父类模拟方法

Question

public abstract class A{
    public int methodInA(String a){
         return 0;
    }
}

public class B extends A{
    String a = "ANYTHING";
    public void main(){
        int b = super.methodInA(a);
    }
}

This code is just an example. I am trying to test B and want to mock the method methodINA with arguments from B . Can I do this with EasyMock and if so how?

Answer 1

This is not what mocking is for, you should be mocking the method main but that makes the test pointless as you won't test the actual code just EasyMock.

EasyMock (and mocking in general) is used when you want to control the behaviour of an object used by an object under test.

In your case the only option you have is to subclass B in your test, like this for example:

@Test
public void testSomething()
{
  final int expected = 5;

  B b = new B()
  {
    public int methodInA(String a)
    {
      return expected;
    }
  };

  b.main();

  //Add assertions here.
}