| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ |
| */ |
| |
| var BUGNUMBER = 501739; |
| var summary = |
| "String.prototype.replace should throw when called with a global RegExp " + |
| "whose .lastIndex is non-writable"; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| var s = '0x2x4x6x8'; |
| |
| // First time with .lastIndex === 0, replacing to '' |
| |
| var p1 = /x/g; |
| Object.defineProperty(p1, "lastIndex", { writable: false }); |
| |
| try |
| { |
| s.replace(p1, ''); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p1.lastIndex, 0); |
| } |
| |
| // Second time with .lastIndex !== 0, replacing to '' |
| |
| var p2 = /x/g; |
| Object.defineProperty(p2, "lastIndex", { writable: false, value: 3 }); |
| |
| try |
| { |
| s.replace(p2, ''); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p2.lastIndex, 3); |
| } |
| |
| // Third time with .lastIndex === 0, replacing to 'y' |
| |
| var p3 = /x/g; |
| Object.defineProperty(p3, "lastIndex", { writable: false }); |
| |
| try |
| { |
| s.replace(p3, 'y'); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p3.lastIndex, 0); |
| } |
| |
| // Fourth time with .lastIndex !== 0, replacing to 'y' |
| |
| var p4 = /x/g; |
| Object.defineProperty(p4, "lastIndex", { writable: false, value: 3 }); |
| |
| try |
| { |
| s.replace(p4, ''); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p4.lastIndex, 3); |
| } |
| |
| // Fifth time with .lastIndex === 0, replacing to 'y', but no match |
| |
| var p5 = /q/g; |
| Object.defineProperty(p5, "lastIndex", { writable: false }); |
| |
| try |
| { |
| s.replace(p5, 'y'); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p5.lastIndex, 0); |
| } |
| |
| // Sixth time with .lastIndex !== 0, replacing to 'y', but no match |
| |
| var p6 = /q/g; |
| Object.defineProperty(p6, "lastIndex", { writable: false, value: 3 }); |
| |
| try |
| { |
| s.replace(p6, ''); |
| throw "didn't throw"; |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, |
| "should have thrown a TypeError, instead got: " + e); |
| assertEq(p6.lastIndex, 3); |
| } |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("Tests complete"); |