capture parameters example

sample.java

//... lines of codes... templateService is mocked...
//here is regular expectation; we know the parameter that will be passed and we are verifying it
expect(nodeService.getProperties(fakeChildNodeRef2)).andReturn(new HashMap());
//create a capturer; which will capture a map item
        Capture<Map> capturer = new Capture<Map>();
//write your expectaion again; this time we want to have a reference to whatever passed to 
//our method processTemplate in mocked item templateService
        expect(templateService.processTemplate(isA(String.class), and(isA(Map.class), capture(capturer)))).andReturn("fake");
        //replay; let the action begin
        replay(nodeService, templateService);
        String fake = testMe.serializeNode(fakeNodeRef);
        //verify that our methods were called according to our expectations
        verify(nodeService, templateService);
        //now, let get the object from capturer to verify it..
        String outputGenerated = (String) (capturer.getValue()).get("json");
//..lines of codes.