CollectorTester.of(collector)
        .expectCollects(ImmutableTable.of())
        .expectCollects(
            ImmutableTable.of("one", "uno", 3),
            Tables.immutableCell("one", "uno", 1),
            Tables.immutableCell("one", "uno", 2));
  }

  public void testBuilder() {
    ImmutableTable.Builder<Character, Integer, String> builder = new ImmutableTable.Builder<>();

  public void testToImmutableTable_java7_combine() {
    ImmutableTable.Builder<String, String, Integer> zis =
        ImmutableTable.<String, String, Integer>builder().put("one", "uno", 1).put("two", "dos", 2);
    ImmutableTable.Builder<String, String, Integer> zat =
        ImmutableTable.<String, String, Integer>builder()
            .put("one", "eins", 1)
            .put("two", "twei", 2);