/**
  * Tests the methods {@link org.apache.calcite.util.ImmutableBitSet#toList} and {@link
  * org.apache.calcite.util.ImmutableBitSet#asList}.
  */
 @Test
 public void testAsList() {
   final List<ImmutableBitSet> list = getSortedList();
   for (ImmutableBitSet bitSet : list) {
     final IntList list1 = bitSet.toList();
     final List<Integer> listView = bitSet.asList();
     assertThat(list1.size(), equalTo(bitSet.cardinality()));
     assertThat(list1.toString(), equalTo(listView.toString()));
     assertTrue(list1.equals(listView));
     assertThat(list1.hashCode(), equalTo(listView.hashCode()));
   }
 }