Mockito How to mock only the call of a method of the superclass

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If you really don’t have a choice for refactoring you can mock/stub everything in the super method call e.g.

    class BaseService {

        public void validate(){
            fail(" I must not be called");
        }

        public void save(){
            //Save method of super will still be called.
            validate();
        }
    }

    class ChildService extends BaseService{

        public void load(){}

        public void save(){
            super.save();
            load();
        }
    }

    @Test
    public void testSave() {
        ChildService classToTest = Mockito.spy(new ChildService());

        // Prevent/stub logic in super.save()
        Mockito.doNothing().when((BaseService)classToTest).validate();

        // When
        classToTest.save();

        // Then
        verify(classToTest).load();
    }

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