content/canvas/test/test_2d.imageData.object.nan.html

   1 <!DOCTYPE HTML>
   2 <title>Canvas test: 2d.imageData.object.nan</title>
   3 <!-- Testing: ImageData.data converts NaN to 0 -->
   4 <script src="/MochiKit/MochiKit.js"></script>
   5 <script src="/tests/SimpleTest/SimpleTest.js"></script>
   6 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
   7 <body>
   8 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
   9 <script>
  10
  11 SimpleTest.waitForExplicitFinish();
  12 MochiKit.DOM.addLoadEvent(function () {
  13
  14 var canvas = document.getElementById('c');
  15 var ctx = canvas.getContext('2d');
  16
  17 var imgdata = ctx.getImageData(0, 0, 10, 10);
  18 imgdata.data[0] = 100;
  19 imgdata.data[0] = NaN;
  20 todo(imgdata.data[0] === 0, "imgdata.data[\""+(0)+"\"] === 0");
  21 imgdata.data[0] = 100;
  22 imgdata.data[0] = "cheese";
  23 todo(imgdata.data[0] === 0, "imgdata.data[\""+(0)+"\"] === 0");
  24
  25 SimpleTest.finish();
  26
  27 });
  28 </script>
  29