mocking deep down with mockito

[Wendy Gibbons]

How do I write a test where the class I need to mock isn't static, and is deep down in the bowls of my application?

sorry I haven't got very far at all yet in my research.

[Jeanne Boyarsky]

Wendy,
This question is hard to answer without an example. On a high level, you abstract something or subclass or ...

Can you provide an example?

[Wendy Gibbons]

Ther problem is that all of our code is called by reflection, with intefaces decided years ago. So nothing can be passed in the constructors.
Yesterday I was trying to mock the ElementTemplateMasterService to return a new response. But with this mornings refactor I am only trying to maock the FlexifieldMaster, but it is still an object I have no control over the instantiation of.

This is the test I am trying to fix (currently in progress trying to sort out an answer):

public void testDelete() throws Exception
	{
		
		FlexiFieldMasterPK key = new FlexiFieldMasterPK(CODE);
		FlexiFieldMaster ffm = FlexiFieldMasterFinder.find(key);
		FlexiFieldMaster spy = Mockito.spy(ffm);
		Mockito.when(spy.inUseInElementTemplateMaster()).thenReturn(false);
		if (ffm != null)
		{
			spy.markRemoved();
		}
		
		commit();
	}

this is the method I am trying to stub out (on FlexiFieldMaster)

protected boolean inUseInElementTemplateMaster()
		throws ReasonException, XMLServiceException
	{
		ElementTemplateMasterService eService = new ElementTemplateMasterService(ThreadLocalData.get().getSession());
		GlobalKey requests = new GlobalKey();
		requests.setCode(getCode());
		DetectFlexiFieldMasterResponse response = eService.detectFlexiFieldMaster(requests);
		if(response.getInUse())
		{
			return true;
		}
		return false;
	}

[Wendy Gibbons]

well with help I got the previous version to work using doReturn, but then other code after the call caused problems, so I had to stub even higher up and endud up using doNothing.

So my question has become, Is there any good documentation that actually documents this without presuming you are a master of easyMock just converting?

FlexiFieldMaster spy = Mockito.spy(ffm);
Mockito.doNothing().when(spy).preMarkRemoved(); // the calling method of inUseInElementTemplateMaster, which is void

@Override
protected void preMarkRemoved()
		throws ReasonException
{ if(inUseInElementTemplateMaster){..} 
    // do database stuff 
}