LibTest/core/RegExp/Pattern_semantics/firstMatch_CharacterEscape_A08_t01.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion 15.10.2.10: The production CharacterEscape ::
/// UnicodeEscapeSequence evaluates by evaluating the character value of the
/// UnicodeEscapeSequence (see 7.8.4) and returning its character result.<br/>
/// HexEscapeSequence :: u HexDigit HexDigit HexDigit HexDigit
/// @description Checks the assertion using some uncommon \u-encoded characters
/// in the test string.
/// @3rdparty sputnik-v1:S15.10.2.10_A4.1_T1.js
/// @author rodionov

import "../../../../Utils/expect.dart";
 
main() {
  Map<String, String> codes = const {
    "0000" : "\u0000", "0001" : "\u0001", "000A" : "\u000A", "000F" : "\u000F",
    "00FF" : "\u00FF", "0FFF" : "\u0FFF", "FFFF" : "\uFFFF", "F00F" : "\uF00F"
  };
  
  StringBuffer errStr = new StringBuffer();
  codes.forEach((String key, String value) {
    RegExp re = new RegExp("\\u$key");
    if(null == re.firstMatch(value)) {
      errStr.write("\"\\u${key}\" does not match \"${value}\"\n");
    } 
  });
  
  if(errStr.length > 0) {
    Expect.fail(errStr.toString());
  }
}