Issue
I have an abstract AccountRequiredActivity that looks like this (and works fine):
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);
}
}
The problem during tests is that there is no way for me to set the viewModelFactory
on the activity.
When an activity has a fragment, I can just do something like:
@Before
public void init() {
LoginFragment fragment = LoginFragment.newInstance();
viewModel = mock(AccountViewModel.class);
when(viewModel.getAuthenticatedUserResource()).thenReturn(authenticatedUser);
fragment.viewModelFactory = ViewModelUtil.createFor(viewModel);
activityRule.getActivity().setFragment(fragment);
}
The problem however in this case is that I use this in my tests (HomeActivity extends AccountRequiredActivity):
@Rule
public ActivityTestRule<HomeActivity> activityTestRule = new ActivityTestRule<>(HomeActivity.class, true, false);
So there is no way to dynamically set the viewModelFactory
, as onCreate
immediately gets called. There doesn't seem to be a way to get access to the Activity object before onCreate
gets called.
How to fix this problem?
Note: I use Dagger 2.11 with AndroidInjector.
Also see this question that I posted yesterday for follow-up info:
Inject ViewModelFactory.Provider in activity for espresso testing
Solution
I solved the problem by overriding AndroidInjector's inject()
method:
@Override
public AndroidInjector<Activity> activityInjector() {
return new AndroidInjector<Activity>() {
@Override
public void inject(Activity instance) {
AccountViewModel viewModel = mock( AccountViewModel.class );
if(instance instanceof TestHomeActivity) {
((TestHomeActivity) instance).viewModelFactory = ViewModelUtil.createFor( viewModel );
}
}
};
}
Answered By - html_programmer
0 comments:
Post a Comment
Note: Only a member of this blog may post a comment.