assertEquals(
        ImmutableListMultimap.of('f', "foo", 'o', "foo", 'o', "foo"),
        ImmutableListMultimap.of("foo", 'f', "foo", 'o', "foo", 'o').inverse());
  }

  public void testNotDistinctEntrySpliterator() {
    ImmutableListMultimap<String, String> multimap =
        ImmutableListMultimap.of("foo", "bar", "foo", "bar");
    assertThat(multimap.entries().spliterator().characteristics() & Spliterator.DISTINCT)