new SimpleAttribute[] { new SimpleAttribute(2), att2 };
testSet = new HashAttributeSet( array );
harness.check(testSet.size(), 1, "size");
harness.check(testSet.hashCode(), 3, "hashcode");
harness.check(testSet.containsValue(att2), true, "containsValue");
AnotherSimpleAttribute att3 = new AnotherSimpleAttribute(4);
harness.check(testSet.add(att3), true, "add");
harness.check(testSet.size(), 2, "size");