public void testConstrainedTypePreservingSortedSet() {
Comparator<Integer> comparator = Collections.reverseOrder();
SortedSetMultimap<String, Integer> delegate =
TreeMultimap.create(Ordering.<String>natural(), comparator);
SortedSetMultimap<String, Integer> multimap =
MapConstraints.constrainedSortedSetMultimap(delegate, TEST_CONSTRAINT);
multimap.put("foo", 1);
Map.Entry<String, Collection<Integer>> entry = multimap.asMap().entrySet().iterator().next();
assertTrue(entry.getValue() instanceof SortedSet);
assertSame(comparator, multimap.valueComparator());
assertSame(comparator, multimap.get("foo").comparator());
}
