在测试中重写调试模块

Question

/src
    /androidTest
    /debug
    /main
    /release

MyApplication extends Application {
      ...
      public void buildObjectGraphAndInject() {
          Object[] modules = Modules.list(this);
          mApplicationGraph = ObjectGraph.create(modules);
          mApplicationGraph.inject(this);
      }
      ...
}

public final class Modules {
  public static Object[] list(MyApplication app) {
    return new Object[] {
        new AppModule(app),
        new DebugAppModule()
    };
  }

  private Modules() {
    // No instances.
  }
}

public final class Modules {
  public static Object[] list(MyApplication app) {
    return new Object[] {
            new AppModule(app)
    };
  }

  private Modules() {
    // No instances.
  }
}

@Module(
    complete = false,
    library = true,
    overrides = true
)
public final class DebugApiModule {

  @Provides @Singleton Endpoint provideEndpoint(@ApiEndpoint StringPreference apiEndpoint) {
    return Endpoints.newFixedEndpoint(apiEndpoint.get());
  }

  @Provides @Singleton MockRestAdapter provideMockRestAdapter(RestAdapter restAdapter, SharedPreferences preferences) {
    MockRestAdapter mockRestAdapter = MockRestAdapter.from(restAdapter);
    AndroidMockValuePersistence.install(mockRestAdapter, preferences);
    return mockRestAdapter;
  }

  @Provides @Singleton MyApi provideMyApi(RestAdapter restAdapter, MockRestAdapter mockRestAdapter,
                                          @IsMockMode boolean isMockMode, MockMyApi mockService) {
    if (isMockMode) {
      return mockRestAdapter.create(MyApi.class, mockService);
    }
    return restAdapter.create(MyApi.class);
  }

}

@Module(
    complete = false,
    library = true,
    overrides = true
)
public final class TestApiModule {

  @Provides @Singleton Endpoint provideEndpoint(@ApiEndpoint StringPreference apiEndpoint) {
    return Endpoints.newFixedEndpoint(apiEndpoint.get());
  }

  @Provides @Singleton MockRestAdapter provideMockRestAdapter(RestAdapter restAdapter, SharedPreferences preferences) {
    MockRestAdapter mockRestAdapter = MockRestAdapter.from(restAdapter);
    mockRestAdapter.setDelay(0);
    mockRestAdapter.setErrorPercentage(0);
    mockRestAdapter.setVariancePercentage(0);
    return mockRestAdapter;
  }

  @Provides @Singleton MyApi provideMyApi(MockRestAdapter mockRestAdapter, MockHnApi mockService) {
      return mockRestAdapter.create(MyApi.class, mockService);
  }

}

public final class Modules {
  public static Object[] list(MyApplication app) {
    return new Object[] {
        new AppModule(app),
        new TestAppModule()
    };
  }

  private Modules() {
    // No instances.
  }
}

我最终做的是在测试设置过程中替换应用程序级图（MockRestAdapter就是在其中创建的

protected void setUp() throws Exception {
  super.setUp();
  HnApp app = HnApp.getInstance();
  app.buildObjectGraphAndInject(TestModules.list(app));
  getActivity();
}

Answer 1

到目前为止，我所做的（我还不完全确定这会扩展）是在我的测试中创建一个静态测试模块类。

   @Module(
            injects = {
                    SharedPreferences.class
    })

      static  class TestModule {
            @Provides @Singleton SharedPreferences provideSharedPreferences(){
                return Mockito.mock(SharedPreferences.class);
            }
    }

并在setup（）方法中注入测试模块

  @Before
    public  void setUp(){
        ObjectGraph.create(new TestModule()).inject(this);
}

然后我@inject这个被嘲弄的类：

@Inject SharedPreferences sharedPreferences;