sugar/unit_tests/environments/sugar/regexp.js

A Javascript library for working with native objects.

test('RegExp', function () {

  var r, n;


  function flagsEqual(actual, expected, message) {
    var actualSorted   = actual.split('').sort().join('');
    var expectedSorted = actual.split('').sort().join('');
    equal(actualSorted, expectedSorted, message);
  }

  equal(RegExp.escape('test regexp'), 'test regexp', 'RegExp#escape');
  equal(RegExp.escape('test reg|exp'), 'test reg\\|exp', 'RegExp#escape');
  equal(RegExp.escape('hey there (budday)'), 'hey there \\(budday\\)', 'RegExp#escape');
  equal(RegExp.escape('what a day...'), 'what a day\\.\\.\\.', 'RegExp#escape');
  equal(RegExp.escape('.'), '\\.', 'RegExp#escape');
  equal(RegExp.escape('*.+[]{}()?|/\\'), '\\*\\.\\+\\[\\]\\{\\}\\(\\)\\?\\|\\/\\\\', 'RegExp#escape');
  equal(RegExp.escape('?'), '\\?', 'RegExp#escape | ?');
  equal(RegExp.escape('\?'), '\\?', 'RegExp#escape | one slash and ?');
  equal(RegExp.escape('\\?'), '\\\\\\?', 'RegExp#escape | two slashes and ?');
  equal(RegExp.escape('\\?'), '\\\\\\?', 'RegExp#escape | two slashes and ?');

  r = /foobar/;
  n = r.setFlags('gim');

  equal(n.global, true, 'RegExp#setFlags');
  equal(n.ignoreCase, true, 'RegExp#setFlags');
  equal(n.multiline, true, 'RegExp#setFlags');

  equal(r.global, false, 'RegExp#setFlags | initial regex is untouched');
  equal(r.ignoreCase, false, 'RegExp#setFlags | initial regex is untouched');
  equal(r.multiline, false, 'RegExp#setFlags | initial regex is untouched');

  n = r.addFlag('g');

  equal(n.global, true, 'RegExp#addFlag');
  equal(n.ignoreCase, false, 'RegExp#addFlag');
  equal(n.multiline, false, 'RegExp#addFlag');

  equal(r.global, false, 'RegExp#addFlag | initial regex is untouched');
  equal(r.ignoreCase, false, 'RegExp#addFlag | initial regex is untouched');
  equal(r.multiline, false, 'RegExp#addFlag | initial regex is untouched');


  r = /foobar/gim;
  n = r.removeFlag('g');

  equal(n.global, false, 'RegExp#removeFlag | global');
  equal(n.ignoreCase, true, 'RegExp#removeFlag | ignoreCase');
  equal(n.multiline, true, 'RegExp#removeFlag | multiline');

  equal(r.global, true, 'RegExp#removeFlag | initial regex is untouched | global');
  equal(r.ignoreCase, true, 'RegExp#removeFlag | initial regex is untouched | ignoreCase');
  equal(r.multiline, true, 'RegExp#removeFlag | initial regex is untouched | multiline');

  raisesError(function(){ /foobar/gim.addFlag('d'); }, 'RegExp#addFlags | d');

  // RegExp#getFlags

  flagsEqual(/foobar/gim.getFlags(), 'gim', 'RegExp#getFlags | gim');
  flagsEqual(/foobar/im.getFlags(), 'im', 'RegExp#getFlags | gi');
  flagsEqual(/foobar/i.getFlags(), 'i', 'RegExp#getFlags | i');
  flagsEqual(/foobar/.getFlags(), '', 'RegExp#getFlags | none');

});