third_party/WebKit/LayoutTests/fast/js/script-tests/string-replace-2.js

   1 description(
   2 "String.replace(&hellip;) test"
   3 );
   4
   5 var testString = "It's the end of the world as we know it, and I feel fine.";
   6 shouldBe("testString",
   7          "\"It's the end of the world as we know it, and I feel fine.\"");
   8 shouldBe("testString.replace('end','BEGINNING')",
   9          "\"It's the BEGINNING of the world as we know it, and I feel fine.\"");
  10 shouldBe("testString.replace(/[aeiou]/gi,'-')",
  11          "\"-t's th- -nd -f th- w-rld -s w- kn-w -t, -nd - f--l f-n-.\"");
  12 shouldBe("testString.replace(/[aeiou]/gi, function Capitalize(s){ return s.toUpperCase(); })",
  13          "\"It's thE End Of thE wOrld As wE knOw It, And I fEEl fInE.\"");
  14 shouldBe("testString.replace(/([aeiou])([a-z])/g, function Capitalize(){ return RegExp.$1.toUpperCase()+RegExp.$2; })",
  15          "\"It's the End Of the wOrld As we knOw It, And I fEel fIne.\"");
  16 shouldBe("testString.replace(/([aeiou])([a-z])/g, function Capitalize(orig,re1,re2) { return re1.toUpperCase()+re2; })",
  17         "\"It's the End Of the wOrld As we knOw It, And I fEel fIne.\"");
  18 shouldBe("testString.replace(/(.*)/g, function replaceWithDollars(matchGroup) { return '$1'; })", "\"$1$1\"");
  19 shouldBe("testString.replace(/(.)(.*)/g, function replaceWithMultipleDollars(matchGroup) { return '$1$2'; })", "\"$1$2\"");
  20 shouldBe("testString.replace(/(.)(.*)/, function checkReplacementArguments() { return arguments.length; })", "\"5\"");
  21
  22 // replace with a global regexp should set lastIndex to zero; if read-only this should throw.
  23 // If the regexp is not global, lastIndex is not modified.
  24 var re;
  25 var replacer;
  26 function testReplace(_re, readonly)
  27 {
  28     re = _re;
  29     re.lastIndex = 3;
  30     if (readonly)
  31         re = Object.defineProperty(re, 'lastIndex', {writable:false});
  32     return '0x1x2'.replace(re, replacer);
  33 }
  34
  35 replacer = 'y';
  36 shouldBe("testReplace(/x/g, false)", '"0y1y2"');
  37 shouldThrow("testReplace(/x/g, true)");
  38 shouldBe("testReplace(/x/, false)", '"0y1x2"');
  39 shouldBe("testReplace(/x/, true)", '"0y1x2"');
  40 shouldBe("testReplace(/x/g, false); re.lastIndex", '0');
  41 shouldThrow("testReplace(/x/g, true); re.lastIndex");
  42 shouldBe("testReplace(/x/, false); re.lastIndex", '3');
  43 shouldBe("testReplace(/x/, true); re.lastIndex", '3');
  44
  45 replacer = function() { return 'y'; };
  46 shouldBe("testReplace(/x/g, false)", '"0y1y2"');
  47 shouldThrow("testReplace(/x/g, true)");
  48 shouldBe("testReplace(/x/, false)", '"0y1x2"');
  49 shouldBe("testReplace(/x/, true)", '"0y1x2"');
  50 shouldBe("testReplace(/x/g, false); re.lastIndex", '0');
  51 shouldThrow("testReplace(/x/g, true); re.lastIndex");
  52 shouldBe("testReplace(/x/, false); re.lastIndex", '3');
  53 shouldBe("testReplace(/x/, true); re.lastIndex", '3');
  54
  55 replacer = function() { "use strict"; return ++re.lastIndex; };
  56 shouldBe("testReplace(/x/g, false)", '"01122"');
  57 shouldThrow("testReplace(/x/g, true)");
  58 shouldBe("testReplace(/x/, false)", '"041x2"');
  59 shouldThrow("testReplace(/x/, true)");
  60 shouldBe("testReplace(/x/g, false); re.lastIndex", '2');
  61 shouldThrow("testReplace(/x/g, true); re.lastIndex");
  62 shouldBe("testReplace(/x/, false); re.lastIndex", '4');
  63 shouldThrow("testReplace(/x/, true); re.lastIndex");
  64
  65 var replacerCalled = false;
  66 replacer = function() { replacerCalled = true; };
  67 shouldBeTrue("try { testReplace(/x/g, false); throw 0; } catch (e) { }; replacerCalled;");
  68 var replacerCalled = false;
  69 replacer = function() { replacerCalled = true; };
  70 shouldBeFalse("try { testReplace(/x/g, true); throw 0; } catch (e) { }; replacerCalled;");