@Before
public void setUp() throws Exception {
activity = new TestFragmentActivity();
activity.onCreate(null);
manager = (TestFragmentManager) activity.getSupportFragmentManager();
fragment = new TestFragment();
containerView = (ViewGroup) activity.findViewById(CONTAINER_VIEW_ID);
}
private F startFragment(F fragment) {
FragmentTransaction transaction = mActivity.getFragmentManager().beginTransaction();
transaction.add(R.id.activity_test_fragment_linearlayout, fragment, "tag");
transaction.commit();
getInstrumentation().waitForIdleSync();
F frag = (F) mActivity.getFragmentManager().findFragmentByTag("tag");
return frag;
}
@Test
public void startFragment_shouldInsertTheFragmentViewIntoTheContainerView() throws Exception {
manager.addFragment(CONTAINER_VIEW_ID, null, fragment, false);
manager.startFragment(fragment);
View fragmentViewParent =
(View) activity.findViewById(TestFragment.FRAGMENT_VIEW_ID).getParent();
assertThat(
activity.findViewById(TestFragment.FRAGMENT_VIEW_ID),
sameInstance(fragment.onCreateViewReturnValue));
assertThat(fragmentViewParent, sameInstance((View) containerView));
}
@Test
public void startFragment_shouldCallLifecycleMethods() throws Exception {
manager.addFragment(View.NO_ID, null, fragment, false);
fragment.transcript.clear();
manager.startFragment(fragment);
fragment.transcript.assertEventsSoFar(
"onCreateView", "onViewCreated", "onActivityCreated", "onStart");
assertEquals(fragment.onCreateViewInflater, activity.getLayoutInflater());
assertNotNull(fragment.getView());
}
