public void testObservingAdapters() {
MockAdapter adapterOld = new MockAdapter(1);
mRecyclerView.setAdapter(adapterOld);
assertTrue("attached adapter should have observables", adapterOld.hasObservers());
MockAdapter adapterNew = new MockAdapter(2);
mRecyclerView.setAdapter(adapterNew);
assertFalse("detached adapter should lose observable", adapterOld.hasObservers());
assertTrue("new adapter should have observers", adapterNew.hasObservers());
mRecyclerView.setAdapter(null);
assertNull("adapter should be removed successfully", mRecyclerView.getAdapter());
assertFalse(
"when adapter is removed, observables should be removed too", adapterNew.hasObservers());
}
@Override
public <AdapterType> AdapterType adaptTo(Class<AdapterType> type) {
return mockAdaptable.adaptTo(this, type);
}