相关疑难解决方法(0)

我有一个像这样的抽象AccountRequiredActivity(并且工作正常):

public abstract class AccountRequiredActivity extends LifecycleActivity {

    @Inject
    ViewModelProvider.Factory viewModelFactory;

    private AccountViewModel accountViewModel;

    public abstract void doOnCreate(Bundle savedInstanceState);
    public abstract void doOnResume();

    @Override
    protected final void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_loading_app);
        AndroidInjection.inject(this);
        accountViewModel = ViewModelProviders.of(this, viewModelFactory).get(AccountViewModel.class);

        if(!accountViewModel.isAuthenticated()) {
            redirectToLogin();
        } else {
            doOnCreate(savedInstanceState);
        };

    }

    @Override
    protected void onResume() {
        super.onResume();
        if(!accountViewModel.isAuthenticated()) {
            redirectToLogin();
        } else {
            doOnResume();
        };
    }

    private void redirectToLogin() {
        Intent intent = new Intent(this, LoginActivity.class);
        startActivity(intent);
    }

}

测试期间的问题是我没有办法设置viewModelFactory活动.

当一个活动有片段时,我可以做类似的事情:

@Before
public …

我想类似的设置UI测试GithubBrowserSample,它看起来像示例项目只有模仿ViewModel的Fragment,但不是一个例子Activity.

这是我的代码,我试图Activity通过嘲笑来测试ViewModel.但是在Activity ViewModel之前没有设置好onCreate().

@RunWith(AndroidJUnit4::class)
class MainActivityTest {

    val viewModel = mock(MainViewModel::class.java)

    @Rule
    @JvmField
    val activityRule = ActivityTestRule<MainActivity>(MainActivity::class.java, true, true)

    private val liveData = MutableLiveData<Resource<Object>>()

    @Before
    open fun setUp() {
        activityRule.activity.viewModelFactory = createViewModelFor(viewModel)
        `when`(viewModel.liveData).thenReturn(liveData)
        viewModel.liveData?.observeForever(mock(Observer::class.java) as Observer<Resource<Object>>)
        liveData.postValue(Resource.success(Object()))
    }

    fun <T : ViewModel> createViewModelFor(model: T): ViewModelProvider.Factory =
        object : ViewModelProvider.Factory {
            override fun <T : ViewModel> create(modelClass: Class<T>): T {
                if (modelClass.isAssignableFrom(model.javaClass)) {
                    return model as …

与此问题相关：Espresso, Dagger2 set ViemodelProvider.Factory on BaseActivity

在测试期间，我历经千辛万苦才在 Activity 上获取 ViewModelFactory.Provider，以便让 espresso 测试能够针对 Android 架构组件进行工作。我以为事情会很简单，但我想事实并非如此......

让它使用片段的示例很简单：
https://github.com/googlesamples/android-architecture-components/blob/master/GithubBrowserSample/app/src/androidTest/java/com/android/example/github/ui /用户/UserFragmentTest.java

@Before
public void init() {
    UserFragment fragment = UserFragment.create("foo");
    viewModel = mock(UserViewModel.class);
    when(viewModel.getUser()).thenReturn(userData);
    when(viewModel.getRepositories()).thenReturn(repoListData);
    navigationController = mock(NavigationController.class);
    fragmentBindingAdapters = mock(FragmentBindingAdapters.class);

    fragment.viewModelFactory = ViewModelUtil.createFor(viewModel);
    fragment.navigationController = navigationController;
    fragment.dataBindingComponent = () -> fragmentBindingAdapters;

    activityRule.getActivity().setFragment(fragment);
}

但是，这根本不适用于活动，因为我无法在使用ActivityTestRule.
我使用 Dagger2 遵循与上面示例中使用接口相同的新依赖项注入流程HasActivityInjector。

我将感谢您的帮助！