}

  // Non-creation tests

  public void testNullGet() {
    ImmutableMap<String, Integer> map = ImmutableMap.of("one", 1);
    assertThat(map.get(null)).isNull();
  }

  public void testAsMultimap() {
    ImmutableMap<String, Integer> map =
        ImmutableMap.of("one", 1, "won", 1, "two", 2, "too", 2, "three", 3);
    ImmutableSetMultimap<String, Integer> expected =