.addCopies("b", 3)
            .addCopies("c", 0)
            .build();
    assertEquals(HashMultiset.create(asList("a", "a", "b", "b", "b")), multiset);
  }

  public void testBuilderSetCount() {
    ImmutableMultiset<String> multiset =
        new ImmutableMultiset.Builder<String>().add("a").setCount("a", 2).setCount("b", 3).build();

            .addCopies("b", 3)
            .addCopies("c", 0)
            .build();
    assertEquals(HashMultiset.create(asList("a", "a", "b", "b", "b")), multiset);
  }

  public void testBuilderSetCount() {
    ImmutableMultiset<String> multiset =
        new ImmutableMultiset.Builder<String>().add("a").setCount("a", 2).setCount("b", 3).build();