multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("foo", 3);
    assertEquals(ImmutableSet.of(1, 3), multimap.get("foo"));
  }

  public void testCreateFromMultimap() {
    Multimap<String, Integer> multimap = LinkedHashMultimap.create();
    multimap.put("a", 1);
    multimap.put("b", 2);
    multimap.put("a", 3);
    multimap.put("c", 4);

    assertTrue(multimap.replaceValues("foo", Arrays.asList(2, 4)) instanceof RandomAccess);
    assertTrue(multimap.replaceValues("bar", Arrays.asList(2, 4)) instanceof RandomAccess);
  }

  public void testCreateFromMultimap() {
    Multimap<String, Integer> multimap = LinkedListMultimap.create();
    multimap.put("foo", 1);
    multimap.put("bar", 3);
    multimap.put("foo", 2);