for (int i = 256; i < 1024; i++) {
      input.append((char) i);
      expected.append("[" + i + "]");
    }
    assertEquals(expected.toString(), SIMPLE_ESCAPER.escape(input.toString()));
  }

  public void testSurrogatePairs() {
    UnicodeEscaper e = SIMPLE_ESCAPER;

    // Build up a range of surrogate pair characters to test
    final int min = Character.MIN_SUPPLEMENTARY_CODE_POINT;
    final int max = Character.MAX_CODE_POINT;

    for (int i = 256; i < 1024; i++) {
      input.append((char) i);
      expected.append("[" + i + "]");
    }
    assertEquals(expected.toString(), SIMPLE_ESCAPER.escape(input.toString()));
  }

  public void testSurrogatePairs() {
    UnicodeEscaper e = SIMPLE_ESCAPER;

    // Build up a range of surrogate pair characters to test
    final int min = Character.MIN_SUPPLEMENTARY_CODE_POINT;
    final int max = Character.MAX_CODE_POINT;