third_party/WebKit/LayoutTests/fast/canvas/canvas-skia-excessive-size.html

   1 <head>
   2 <script>
   3 function print(message)
   4 {
   5     var paragraph = document.createElement("li");
   6     paragraph.appendChild(document.createTextNode(message));
   7     document.getElementById("console").appendChild(paragraph);
   8 }
   9 function test()
  10 {
  11     if (window.testRunner)
  12         testRunner.dumpAsText();
  13
  14     var canvas = document.getElementById("bigCanvas");
  15     var width = canvas.width;
  16     // We need to perform a context fetch to force allocation of
  17     // canvas resources.
  18     if (canvas.getContext)
  19     {
  20       var ctx = canvas.getContext("2d");
  21       if (ctx == null)
  22       {
  23         print("Canvas 2d context = null!");
  24       }
  25     }
  26
  27     print("Survived canvas creation attempt. Width = " + width);
  28 }
  29 </script>
  30 </head>
  31 <body onload="test();">
  32 <canvas id="bigCanvas" width="134217728" height="1"></canvas>
  33 <p>This test checks to see if the browser survives the attempted creation
  34 of an excessively large canvas.</p>
  35 <hr>
  36 <p><ol id=console></ol></p>
  37 </body>