public void testSortListener() { table.setSortMode(UIScrollableDataTable.SORT_MULTI); assertSame(MultiColumnSortListener.INSTANCE, table.getSortListener()); table.setSortMode(UIScrollableDataTable.SORT_SINGLE); assertSame(SingleColumnSortListener.INSTANCE, table.getSortListener()); SortListener1 sortListener1 = new SortListener1(); table.setSortListener(sortListener1); assertSame(sortListener1, table.getSortListener()); }