Mockito.mockConstruction 不返回测试类中的模拟对象

Question

我正在尝试为使用 google 的 AdMob 库的 Java 编写的电容器 android 插件编写缺少的测试。

我试图测试的函数有一个new AdView()调用，即使构造函数被Mockito 的对象构造模拟模拟，它也返回null ，我不太确定为什么。

我尝试在测试威胁中创建一个新的AdView并且它有效。

这是当前的测试（它还没有任何断言，因为我只是想通过视图创建：

    @Test
    public void npa_requests_for_banner_when_specified_inside_options() {
        sut = new AdMob();
        try (MockedStatic<AdOptions> adOptionsStaticMocked = Mockito.mockStatic(AdOptions.class)) {
            adOptionsStaticMocked.when(AdOptions::getFactory).thenReturn(adOptionsFactoryMock);
            
            try (MockedConstruction<AdView> adViewMocked = Mockito.mockConstruction(AdView.class)) {
                Context mockedContext = mock(Context.class);
                AdView adView = new AdView(mockedContext);


                sut.showBanner(pluginCallMock);
            }
        }
    }

和showBanner相关代码：

  @PluginMethod
  public void showBanner(PluginCall call) {

    if (mAdView != null) {
      return;
    }

    final AdOptions adOptions = AdOptions
      .getFactory()
      .createBannerOptions(call);

    setTestDevicesIfNeeded(adOptions.isTesting);

    try {
      mAdView = new AdView(getContext()); // THIS BREAKS! NO MOCK IS RETURNED
      mAdView.setAdSize(adOptions.adSize.size);
        
      mAdViewLayout = new RelativeLayout(getContext());
      mAdViewLayout.setHorizontalGravity(Gravity.CENTER_HORIZONTAL);
      mAdViewLayout.setVerticalGravity(Gravity.BOTTOM);

      // More Code here...
    } catch (Exception ex) {
      call.error(ex.getLocalizedMessage(), ex);
    }
  }

mAdView = new AdView(getContext())部分是代码中断的地方。

有谁可以告诉我我做错了什么？

Answer 1

也许这有助于像我这样的 Java Capacitor 插件新手。

问题是getContext()返回 null ......我所做的是：

    @Test
    public void npa_requests_for_banner_when_specified_inside_options() {
        sut = new AdMob() {
            @Override
            public Context getContext() {
                return mockedContext;
            }
        };
        try (MockedStatic<AdOptions> adOptionsStaticMocked = Mockito.mockStatic(AdOptions.class)) {
            adOptionsStaticMocked.when(AdOptions::getFactory).thenReturn(adOptionsFactoryMock);
            
            try (MockedConstruction<AdView> adViewMocked = Mockito.mockConstruction(AdView.class)) {
                Context mockedContext = mock(Context.class);
                AdView adView = new AdView(mockedContext);


                sut.showBanner(pluginCallMock);
            }
        }
    }