@Test
public void testScrolledToBottom() {

    mDelegate.startListening();
    verify(mRequireScrollMixin).notifyScrollabilityChange(true);
    doReturn(20).when(mRecyclerView).computeVerticalScrollOffset();
    mListenerCaptor.getValue().onScrolled(mRecyclerView, 0, 20);
    verify(mRequireScrollMixin).notifyScrollabilityChange(false);
}