Question

I have a App with several Fragments which are managed by one Activity. My Problem is that I want to test the Application and test the UI of each Fragment. I can test the first Fragment and get all Views of this, but when I click on a Button or something else (to replace the Fragment with another Fragment) I can’t get any View of the new Fragment, but my MainActivity says that the current Fragment is the new Fragment.

@UiThreadTest
public void testNewFragmentScrollView() {
    assertTrue(mActivity.getFragmentType().equals(FragmentTypes.FRAGMENT_STARTSCREEN));
    ivNewFragment.performClick(); // replace fragment
    sleep();
    assertTrue(mActivity.getFragmentType().equals(FragmentTypes.FRAGMENT_NEW));
    //get something from new fragment, ID is copied from xml file and not false
    ScrollView scrollView = (ScrollView) mActivity.findViewById(R.id.sv_fragment_new_scrollable);    
    assertTrue(scrollView != null); //#false???
    mActivity.finish();
}

Do I have to update something in my Testclass or why i’m getting no Views from the new Fragment?

Answer 1

Ok I solved my problem by splitting the code. When I change the Fragment in setUp and wait some ms, I can get all views from the new Fragment in each testmethod

@Override
protected void setUp() throws Exception {
    super.setUp();
    setActivityInitialTouchMode(false);
    mActivity = getActivity();
    buNewFragment =(Button) mActivity.findViewById(R.id.bu_actionbar_newfragment);
    mActivity.runOnUiThread(new Runnable() {
        public void run() {
            buNewFragment .performClick();
        }
    });
    sleep(500);//simple Thread.sleep() method
}

@UiThreadTest
public void testNewFragmentScrollView() {
    assertTrue(mActivity.getFragmentType().equals(FragmentTypes.FRAGMENT_NEW));
    ScrollView scrollView = (ScrollView) mActivity.findViewById(R.id.sv_fragment_new_scrollable);
    assertTrue(scrollView != null); //#t
}