}
    }

    // Testing multibyte escape sequences
    assertEscaping(e, "%00", '\u0000'); // nul
    assertEscaping(e, "%7F", '\u007f'); // del
    assertEscaping(e, "%C2%80", '\u0080'); // xx-00010,x-000000
    assertEscaping(e, "%DF%BF", '\u07ff'); // xx-11111,x-111111
    assertEscaping(e, "%E0%A0%80", '\u0800'); // xxx-0000,x-100000,x-00,0000

  private static final String LARGEST_SURROGATE =
      "" + Character.MAX_HIGH_SURROGATE + Character.MAX_LOW_SURROGATE;

  private static final String TEST_STRING =
      "\0abyz\u0080\u0100\u0800\u1000ABYZ\uffff" + SMALLEST_SURROGATE + "0189" + LARGEST_SURROGATE;

  // Escapes nothing
  private static final UnicodeEscaper NOP_ESCAPER =
      new UnicodeEscaper() {
        @Override

      }
    }

    // Testing multibyte escape sequences
    assertEscaping(e, "%00", '\u0000'); // nul
    assertEscaping(e, "%7F", '\u007f'); // del
    assertEscaping(e, "%C2%80", '\u0080'); // xx-00010,x-000000
    assertEscaping(e, "%DF%BF", '\u07ff'); // xx-11111,x-111111
    assertEscaping(e, "%E0%A0%80", '\u0800'); // xxx-0000,x-100000,x-00,0000

            2728, 30010, 20799, 33829, 49464, 3375, 24378, 44397, 4323, 4322, 22788, 1749, 2337,
            3359, 36023, 9834, 299, 1496, 24590, 31859, 25522, 38144, 7891, 26354, 12462, 36798,
            20080, 47924, 26045, 275, 7903, 337, 1391, 22253, 12498, 1490, 32844, 44060, 38656,
            21464, 22905, 35843, 7921, 7913, 8251, 2309, 8218, 35758, 20540, 51004, 35753, 50724,

  private static final String LARGEST_SURROGATE =
      "" + Character.MAX_HIGH_SURROGATE + Character.MAX_LOW_SURROGATE;

  private static final String TEST_STRING =
      "\0abyz\u0080\u0100\u0800\u1000ABYZ\uffff" + SMALLEST_SURROGATE + "0189" + LARGEST_SURROGATE;

  // Escapes nothing
  private static final UnicodeEscaper NOP_ESCAPER =
      new UnicodeEscaper() {
        @Override

            2728, 30010, 20799, 33829, 49464, 3375, 24378, 44397, 4323, 4322, 22788, 1749, 2337,
            3359, 36023, 9834, 299, 1496, 24590, 31859, 25522, 38144, 7891, 26354, 12462, 36798,
            20080, 47924, 26045, 275, 7903, 337, 1391, 22253, 12498, 1490, 32844, 44060, 38656,
            21464, 22905, 35843, 7921, 7913, 8251, 2309, 8218, 35758, 20540, 51004, 35753, 50724,