comparing_expect_then_act_with_act_then_verify.groovy

public class CreateActionTest {
    def mockery = new JUnit4Mockery();

    def modelRepository = mockery.mock(ModelRepository.class); // corresponds to class methods on Model in Rails
    def model = new Model(); // treated as Entity (DDD sense)
    def controller = new Controller(modelRepository);

    @Before
    public void supposeModelRepositoryCreatesOurModelObject() {
        mockery.stub(modelRepository).create().will(returnValue(model));
    }
        
    @Test
    public void savesModelByExpectingThenActing() throws Exception {
        mockery.oneOf(modelRepository).save(with(same(model)));
        controller.create();
    }

    @Test
    public void savesModelByActingThenVerifying() throws Exception {
        controller.create();
        mockery.verify(modelRepository).save(with(same(model)));
    }
}