svoid test_SmallArrayBasedMap() {
  Map map = SmallArrayBasedMap(litorderedmap("hello" := "world", "a" := "b"));
  printStruct(map);
  assertEqualsVerbose("b", map.get("a"));
  assertEqualsVerbose("world", map.get("hello"));
  assertEqualsVerbose(2, map.entrySet().size());
  assertEqualsVerbose(llPairs("hello", "world", "a" := "b"), mapToPairs(map));
}