CollectionFeature.SERIALIZABLE,
CollectionFeature.ALLOWS_NULL_QUERIES)
.createTestSuite());
suite.addTest(NavigableSetTestSuiteBuilder.using(
new ImmutableSortedSetUnhashableGenerator())
.suppressing(SetHashCodeTester.getHashCodeMethods())
.named(ImmutableSortedSetTest.class.getName() + ", unhashable")
.withFeatures(CollectionSize.ANY, CollectionFeature.KNOWN_ORDER,
CollectionFeature.ALLOWS_NULL_QUERIES)
.createTestSuite());