third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/15.4.4.13.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2
   3 /*
   4  * Any copyright is dedicated to the Public Domain.
   5  * http://creativecommons.org/licenses/publicdomain/
   6  */
   7
   8 function arr() {
   9   return Object.defineProperty([1, 2, 3], 0, {writable: false});
  10 }
  11
  12 function obj() {
  13   var o = {0: 1, 1: 2, 2: 3, length: 3};
  14   Object.defineProperty(o, 0, {writable: false});
  15   return o;
  16 }
  17
  18 assertEq(testLenientAndStrict('var a = arr(); [a.unshift(40, 50), a]',
  19                               raisesException(TypeError),
  20                               raisesException(TypeError)),
  21          true);
  22
  23 assertEq(testLenientAndStrict('var o = obj(); [Array.prototype.unshift.call(o, 40, 50), o]',
  24                               raisesException(TypeError),
  25                               raisesException(TypeError)),
  26          true);
  27
  28 function agap() {
  29   var a = [1, 2, , 4];
  30   Object.defineProperty(a, 3, {configurable: false});
  31   return a;
  32 }
  33
  34 function ogap() {
  35   var o = {0: 1, 1: 2, /* no 2 */ 3: 4, length: 4};
  36   Object.defineProperty(o, 3, {configurable: false});
  37   return o;
  38 }
  39
  40 assertEq(testLenientAndStrict('var a = agap(); [a.unshift(9), a]',
  41                               raisesException(TypeError),
  42                               raisesException(TypeError)),
  43          true);
  44
  45 assertEq(testLenientAndStrict('var o = ogap(); [Array.prototype.unshift.call(o, 9), o]',
  46                               raisesException(TypeError),
  47                               raisesException(TypeError)),
  48          true);
  49
  50 reportCompare(true, true);
  51
  52 var successfullyParsed = true;