SwingItemViewerCompound implements ItemViewerCompound<T, Container> { @Override public TopItemScroller<T> getScroller() { return scroller; } SwingItemViewerCompound( Timeline<T> timeline, ItemUiFactory<T, Container> itemUiFactory ); @Override TopItemUpdater<T, Container> getTopItemUpdater(); @Override TopItemScroller<T> getScroller(); @Override ItemUiList<T, Container> getItemUiList();  }
@Test public void getScroller() { assertThat( compound.getScroller() ).isNotNull(); }