third_party/WebKit/LayoutTests/fast/dom/clone-node-style.html

   1 <p>This test checks for a crash that once happened due to cloned nodes copying style
   2 declaration pointers without retaining them.
   3 </p>
   4 <hr>
   5 <p>PASS: You didn't crash.</p>
   6
   7 <div style="width: 100px;">hello world</div>
   8 <div style="width: 100px;">hello world</div>
   9 <div style="width: 100px;">hello world</div>
  10 <div style="width: 100px;">hello world</div>
  11 <div style="width: 100px;">hello world</div>
  12 <div style="width: 100px;">hello world</div>
  13 <div style="width: 100px;">hello world</div>
  14 <div style="width: 100px;">hello world</div>
  15 <div style="width: 100px;">hello world</div>
  16 <div style="width: 100px;">hello world</div>
  17 <div style="width: 100px;">hello world</div>
  18 <div style="width: 100px;">hello world</div>
  19 <div style="width: 100px;">hello world</div>
  20 <div style="width: 100px;">hello world</div>
  21 <div style="width: 100px;">hello world</div>
  22 <div style="width: 100px;">hello world</div>
  23 <div style="width: 100px;">hello world</div>
  24 <div style="width: 100px;">hello world</div>
  25 <div style="width: 100px;">hello world</div>
  26 <div style="width: 100px;">hello world</div>
  27 <div style="width: 100px;">hello world</div>
  28 <div style="width: 100px;">hello world</div>
  29 <div style="width: 100px;">hello world</div>
  30 <div style="width: 100px;">hello world</div>
  31 <div style="width: 100px;">hello world</div>
  32 <div style="width: 100px;">hello world</div>
  33 <div style="width: 100px;">hello world</div>
  34 <div style="width: 100px;">hello world</div>
  35 <div style="width: 100px;">hello world</div>
  36 <div style="width: 100px;">hello world</div>
  37 <div style="width: 100px;">hello world</div>
  38 <div style="width: 100px;">hello world</div>
  39 <div style="width: 100px;">hello world</div>
  40 <div style="width: 100px;">hello world</div>
  41 <div style="width: 100px;">hello world</div>
  42 <div style="width: 100px;">hello world</div>
  43 <div style="width: 100px;">hello world</div>
  44 <div style="width: 100px;">hello world</div>
  45 <div style="width: 100px;">hello world</div>
  46 <div style="width: 100px;">hello world</div>
  47 <div style="width: 100px;">hello world</div>
  48 <div style="width: 100px;">hello world</div>
  49 <div style="width: 100px;">hello world</div>
  50 <div style="width: 100px;">hello world</div>
  51 <div style="width: 100px;">hello world</div>
  52 <div style="width: 100px;">hello world</div>
  53 <div style="width: 100px;">hello world</div>
  54 <div style="width: 100px;">hello world</div>
  55 <div style="width: 100px;">hello world</div>
  56 <div style="width: 100px;">hello world</div>
  57 <div style="width: 100px;">hello world</div>
  58 <div style="width: 100px;">hello world</div>
  59 <div style="width: 100px;">hello world</div>
  60 <div style="width: 100px;">hello world</div>
  61 <div style="width: 100px;">hello world</div>
  62 <div style="width: 100px;">hello world</div>
  63 <div style="width: 100px;">hello world</div>
  64 <div style="width: 100px;">hello world</div>
  65 <div style="width: 100px;">hello world</div>
  66 <div style="width: 100px;">hello world</div>
  67 <div style="width: 100px;">hello world</div>
  68 <div style="width: 100px;">hello world</div>
  69 <div style="width: 100px;">hello world</div>
  70 <div style="width: 100px;">hello world</div>
  71 <div style="width: 100px;">hello world</div>
  72 <div style="width: 100px;">hello world</div>
  73 <div style="width: 100px;">hello world</div>
  74 <div style="width: 100px;">hello world</div>
  75 <div style="width: 100px;">hello world</div>
  76 <div style="width: 100px;">hello world</div>
  77 <div style="width: 100px;">hello world</div>
  78 <div style="width: 100px;">hello world</div>
  79 <div style="width: 100px;">hello world</div>
  80 <div style="width: 100px;">hello world</div>
  81 <div style="width: 100px;">hello world</div>
  82 <div style="width: 100px;">hello world</div>
  83 <div style="width: 100px;">hello world</div>
  84 <div style="width: 100px;">hello world</div>
  85 <div style="width: 100px;">hello world</div>
  86 <div style="width: 100px;">hello world</div>
  87 <div style="width: 100px;">hello world</div>
  88 <div style="width: 100px;">hello world</div>
  89 <div style="width: 100px;">hello world</div>
  90 <div style="width: 100px;">hello world</div>
  91 <div style="width: 100px;">hello world</div>
  92 <div style="width: 100px;">hello world</div>
  93 <div style="width: 100px;">hello world</div>
  94 <div style="width: 100px;">hello world</div>
  95 <div style="width: 100px;">hello world</div>
  96 <div style="width: 100px;">hello world</div>
  97 <div style="width: 100px;">hello world</div>
  98 <div style="width: 100px;">hello world</div>
  99 <div style="width: 100px;">hello world</div>
 100 <div style="width: 100px;">hello world</div>
 101 <div style="width: 100px;">hello world</div>
 102 <div style="width: 100px;">hello world</div>
 103 <div style="width: 100px;">hello world</div>
 104 <div style="width: 100px;">hello world</div>
 105 <div style="width: 100px;">hello world</div>
 106 <div style="width: 100px;">hello world</div>
 107
 108 <script>
 109 function garbageCollect()
 110 {
 111     if (window.GCController) {
 112         GCController.collect();
 113         return;
 114     }
 115
 116     for (var i = 0; i < 10000; i++) {
 117         var o = new Object();
 118     }
 119 }
 120
 121 if (window.testRunner)
 122     testRunner.dumpAsText();
 123
 124 // Create an army of clones, removing the originals.
 125
 126 var divs = document.getElementsByTagName('div');
 127 var divClones = new Array();
 128
 129 var div;
 130 while (div = divs[0]) {
 131     divClones.push(div.cloneNode(false));
 132     div.parentNode.removeChild(div);
 133 }
 134
 135 // Garbage collect to force destruction of the originals.
 136
 137 garbageCollect();
 138
 139 // Now try setting properties on the clones' style declarations.
 140
 141 for (var i = 0; i < divClones.length; i++) {
 142     divClones[i].style.width = "100px";
 143 }
 144 </script>