package org.drage.tutorial.mocking; // imports ... @RunWith(MockitoJUnitRunner.class) public class CarSelectorTest { private CarSelector carSelector; @Mock private CarBuilderService service; @Before public void initTest(){ carSelector = new CarSelector(service); } @Test public void testBuyRedFerrari() { carSelector.buyRedFerrari(); ArgumentCaptor<BuyingCriteria> argumentCaptor = ArgumentCaptor.forClass(BuyingCriteria.class); Mockito.verify(service).buildCar(argumentCaptor.capture()); BuyingCriteria buyingCriteria = argumentCaptor.getValue(); assertEquals("RED", buyingCriteria.getColor()); assertEquals("FERRARI", buyingCriteria.getModel()); } }