@SuppressWarnings("unchecked")
@Test
public void testGroupSortNoEffect() {
List<Tuple2<Integer, Integer>> pairs =
Lists.newArrayList(tuple2(1, 2), tuple2(2, 3), tuple2(1, 3), tuple2(3, 1), tuple2(2, 1));
JavaPairRDD<Integer, Integer> p = jsc().parallelizePairs(pairs);
GroupSorted<Integer, Integer> gs =
new GroupSorted(p, new HashPartitioner(2), Ordering.natural());
GroupSorted<Integer, Integer> gs1 =
new GroupSorted(gs, new HashPartitioner(2), Ordering.natural());
Assert.assertTrue(JavaPairRDD.toRDD(gs) == JavaPairRDD.toRDD(gs1));
}
