suite.addTest(
        MapTestSuiteBuilder.using(new ImmutableMapGenerator())
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS,
                CollectionFeature.KNOWN_ORDER,
                MapFeature.REJECTS_DUPLICATES_AT_CREATION,
                CollectionFeature.ALLOWS_NULL_QUERIES)
            .named("ImmutableMap")

                  CollectionFeature.ALLOWS_NULL_QUERIES,
                  CollectionFeature.RESTRICTS_ELEMENTS,
                  CollectionFeature.KNOWN_ORDER,
                  CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS)
              .createTestSuite());
    }
    suite.addTestSuite(ImmutableLongArrayTest.class);
    return suite;
  }

  @J2ktIncompatible
  @GwtIncompatible // used only from suite