使用 mockito 进行 GWT 测试

Question

简单问题:

验证(1)通过。验证(2)没有。为什么？如何解决？

测试

  @Test
    public void test() {
            System.out.println("test");
            EventBus eb = mock(EventBus.class);
            MyWidget.View v = mock(MyWidget.View.class);
            GreetingServiceAsync s = mock(GreetingServiceAsync.class);

            HasClickHandlers button = mock(HasClickHandlers.class);

            when(v.getButton()).thenReturn(button);

            new MyWidget(eb, v, s);

            button.fireEvent(mock(ClickEvent.class));   

            verify(button).addClickHandler(any(ClickHandler.class)); (1)
            verify(v).alert(anyString()); (2)


        }

小工具

@Inject
    public MyWidget(EventBus eventBus, View view, GreetingServiceAsync service){
        this.view = view;
        this.service = service;

        bindView();
        bindEventBus();

    }

    private void bindView(){

        view.getButton().addClickHandler(new ClickHandler() {

            @Override
            public void onClick(ClickEvent event) {
                view.alert("test");
            }
        });

    }

Answer 1

因为 button 是一个 mock，所以调用 fireEvent 并不会真正触发事件；并且永远不会在 View 上调用 onClick。