!7

static new CompactPairKeyHashMap<S, S> map1;
static new HashMap<Pair<S>, S> map2;

p {
  check();
  repeat 100 {
    repeat 10 {
      putInTwoMaps(map1, map2, pair(aGlobalID(), aGlobalID()), aGlobalID());
    }
    removeFromTwoMaps(map1, map2, random(keys(map2)));
    check();
  }
  print("OK!");
}

svoid check {
  assertEqualsVerbose(map2.size(), map1.size());
  assertEquals(sorted(keys(map2)), sorted(keys(map1)));
  assertEquals(sorted(values(map2)), sorted(values(map1)));
  for (Pair<S> key : keys(map1))
    assertEquals(map2.get(key), map1.get(key));
  assertNull(map1.get(pair("unknown", "unknown")));
}

Began life as a copy of #1013304