assertEquals(
        "getOrDefault(null, def) should return the default value",
        v3(),
        getMap().getOrDefault(null, v3()));
  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
  public void testGetOrDefault_nullAbsentAndUnsupported() {
    try {
      assertEquals(
          "getOrDefault(null, def) should return default or throw",
          v3(),

    assertEquals(
        "\uD8AB\uDCABdef", Strings.commonSuffix("abc\uD8AB\uDCABdef", "xyz\uD8AB\uDCABdef"));
    // Differing valid surrogate pairs.
    assertEquals("def", Strings.commonSuffix("abc\uD8AB\uDCABdef", "abc\uD8AC\uDCABdef"));
    // One invalid pair.
    assertEquals("def", Strings.commonSuffix("abc\uD8AB\uDCABdef", "xyz\uDCAB\uDCABdef"));
    // Two identical invalid pairs.
    assertEquals(

  public void testCharactersOfIsView() {
    StringBuilder builder = new StringBuilder("abc");
    List<Character> chars = charactersOf(builder);
    assertEquals(asList('a', 'b', 'c'), chars);
    builder.append("def");
    assertEquals(asList('a', 'b', 'c', 'd', 'e', 'f'), chars);
    builder.deleteCharAt(5);
    assertEquals(asList('a', 'b', 'c', 'd', 'e'), chars);
  }

  public void testNewArrayListEmpty() {

  public void testCharactersOfIsView() {
    StringBuilder builder = new StringBuilder("abc");
    List<Character> chars = charactersOf(builder);
    assertEquals(asList('a', 'b', 'c'), chars);
    builder.append("def");
    assertEquals(asList('a', 'b', 'c', 'd', 'e', 'f'), chars);
    builder.deleteCharAt(5);
    assertEquals(asList('a', 'b', 'c', 'd', 'e'), chars);
  }

  public void testNewArrayListEmpty() {

            + "field1=This is string., field2=[abc, def, ghi], field3={abc=1, def=2, ghi=3}}";

    assertEquals(expected, toTest);
  }

  public void testToStringLenient_complexFields() {
    Map<String, Integer> map =
        ImmutableMap.<String, Integer>builder().put("abc", 1).put("def", 2).put("ghi", 3).build();
    String toTest =
        MoreObjects.toStringHelper(new TestClass())
            .add("field1", "This is string.")

    assertEquals(
        "\uD8AB\uDCABdef", Strings.commonSuffix("abc\uD8AB\uDCABdef", "xyz\uD8AB\uDCABdef"));
    // Differing valid surrogate pairs.
    assertEquals("def", Strings.commonSuffix("abc\uD8AB\uDCABdef", "abc\uD8AC\uDCABdef"));
    // One invalid pair.
    assertEquals("def", Strings.commonSuffix("abc\uD8AB\uDCABdef", "xyz\uDCAB\uDCABdef"));
    // Two identical invalid pairs.
    assertEquals(