public void testHashcode() {
int[] ints = {1138, 42, 86, 99, 101};
TIntSet set = new TIntHashSet();
set.addAll(ints);
TIntSet other = new TIntHashSet();
other.addAll(ints);
assertTrue("hashcodes incorrectly not equal: " + set + ", " + other,
set.hashCode() == other.hashCode());
int[] mismatched = {72, 49, 53, 1024, 999};