@Test
public void addFragment_shouldPassTheSavedInstanceStateToOnCreate() throws Exception {
Bundle bundle = new Bundle();
shadowOf(fragment).setSavedInstanceState(bundle);
manager.addFragment(0, null, fragment, false);
assertSame(bundle, fragment.onCreateSavedInstanceState);
}
@Test
public void addFragment_shouldCallLifecycleMethods() throws Exception {
manager.addFragment(View.NO_ID, null, fragment, false);
fragment.transcript.assertEventsSoFar("onAttach", "onCreate");
assertSame(activity, fragment.onAttachActivity);
assertSame(activity, fragment.getActivity());
}
@Test
public void startFragment_shouldPassSavedInstanceStateToOnCreateMethodOfFragment()
throws Exception {
shadowOf(fragment).setSavedInstanceState(new Bundle());
manager.addFragment(CONTAINER_VIEW_ID, null, fragment, true);
manager.startFragment(fragment);
assertTrue(fragment.onActivityCreated_savedInstanceState != null);
}
@Test
public void addFragmentWithReplace_shouldEmptyTheContainer() throws Exception {
containerView.addView(new Button(activity));
assertEquals(1, containerView.getChildCount());
manager.addFragment(CONTAINER_VIEW_ID, null, fragment, true);
assertEquals(1, containerView.getChildCount());
}
@Test
public void getFragment_whenBundleSavedByShadowFragmentActivity_shouldGetFragmentByTagFromBundle()
throws Exception {
manager.addFragment(CONTAINER_VIEW_ID, "fragment tag", fragment, true);
Bundle outState = new Bundle();
shadowOf(activity).onSaveInstanceState(outState);
Fragment retrievedFragment = manager.getFragment(outState, "fragment tag");
assertEquals(TestFragment.class, retrievedFragment.getClass());
}
@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());
}
@Test
public void addFragment_shouldSetTheFragmentsTag() throws Exception {
manager.addFragment(View.NO_ID, "expected tag", fragment, false);
assertThat(fragment.getTag(), equalTo("expected tag"));
}
@Test
public void addFragment_shouldSetTheFragmentsView() throws Exception {
manager.addFragment(View.NO_ID, null, fragment, false);
assertThat(fragment.getView(), sameInstance(fragment.onCreateViewReturnValue));
}
@Test
public void shouldFindFragmentByTag() throws Exception {
manager.addFragment(CONTAINER_VIEW_ID, "tag1", fragment, false);
assertThat(manager.findFragmentByTag("tag1"), sameInstance((Fragment) fragment));
}
@Test
public void addFragment_shouldSetFragmentsActivity() throws Exception {
manager.addFragment(0, null, fragment, false);
assertSame(activity, fragment.getActivity());
}
@Test
public void addFragmentWithReplace_withNoContainer_shouldNotThrow() throws Exception {
manager.addFragment(0, null, fragment, true);
// pass
}