/image/test/mochitest/test_bug399925.html

http://github.com/zpao/v8monkey · HTML · 80 lines · 64 code · 13 blank · 3 comment · 0 complexity · cc388589a2523051e660d031871280bc MD5 · raw file 

    

  1. <!DOCTYPE HTML>
    2. 

  2. <html>
    3. 

  3. <!--
    4. 

  4. https://bugzilla.mozilla.org/show_bug.cgi?id=399925
    5. 

  5. -->
    6. 

  6. <head>
    7. 

  7.   <title>Test for Bug 399925</title>
    8. 

  8.   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    9. 

  9.   <script type="text/javascript" src="imgutils.js"></script>
    10. 

  10.   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
    11. 

  11. </head>
    12. 

  12. <body>
    13. 

  13. <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=399925">Mozilla Bug 399925</a>
    14. 

  14. <p id="display"></p>
    15. 

  15. <div id="content" style="display: none">
    16. 

  16. <img src="bug399925.gif" id="gif" />
    17. 

  17. <canvas id="canvas" width="100" height="100"> </canvas>  
    18. 

  18. </div>
    19. 

  19. <pre id="test">
    20. 

  20. <script class="testbody" type="text/javascript">
    21. 

  21. 

  22. /** Test for Bug 399925. **/
    23. 

  23. var pngResults = new Array();
    24. 

  24. var oldTimeoutPref;
    25. 

  25. var oldDiscardPref;
    26. 

  26. SimpleTest.waitForExplicitFinish();
    27. 

  27. window.onload = runTest;
    28. 

  28. 

  29. function runTest()
    30. 

  30. {
    31. 

  31.   // Get the old discard timeout
    32. 

  32.   oldTimeoutPref = getImagePref(DISCARD_TIMEOUT_PREF);
    33. 

  33. 

  34.   // We're testing discarding here, so we should make sure it's flipped on
    35. 

  35.   oldDiscardPref = getImagePref(DISCARD_ENABLED_PREF);
    36. 

  36. 

  37.   // Enable Discarding
    38. 

  38.   setImagePref(DISCARD_ENABLED_PREF, true);
    39. 

  39. 

  40.   // Sets the discard timer to 500ms so we don't have to wait so long. The
    41. 

  41.   // actual time is nondeterministic, but is bounded by 2 * timer = 1 second.
    42. 

  42.   setImagePref(DISCARD_TIMEOUT_PREF, 1000);
    43. 

  43. 

  44.   // Create the image _after_ setting the discard timer pref
    45. 

  45.   var image = new Image();
    46. 

  46.   image.setAttribute("id", "gif");
    47. 

  47.   image.src = "bug399925.gif";
    48. 

  48.   document.getElementById("content").appendChild(image);
    49. 

  49. 

  50.   // draw the canvas once
    51. 

  51.   drawCanvas();
    52. 

  52. 

  53.   // Set the timeout to draw it after discard
    54. 

  54.   setTimeout('drawCanvas(); allDone();', 3000);
    55. 

  55. }
    56. 

  56. 

  57. function drawCanvas()
    58. 

  58. {
    59. 

  59.     var canvas = document.getElementById('canvas');
    60. 

  60.     var context = canvas.getContext('2d');
    61. 

  61.     var gif = document.getElementById('gif');
    62. 

  62. 

  63.     context.drawImage(gif, 0, 0);
    64. 

  64.     ok(true, "we got through the drawImage call without an exception being thrown");
    65. 

  65.     pngResults.push(canvas.toDataURL);
    66. 

  66. }
    67. 

  67. 

  68. function allDone()
    69. 

  69. {
    70. 

  70.     is(pngResults[0], pngResults[1], "got different rendered results");
    71. 

  71.     setImagePref(DISCARD_TIMEOUT_PREF, oldTimeoutPref);
    72. 

  72.     setImagePref(DISCARD_ENABLED_PREF, oldDiscardPref);
    73. 

  73.     SimpleTest.finish();
    74. 

  74. }
    75. 

  75. 

  76. </script>
    77. 

  77. </pre>
    78. 

  78. </body>
    79. 

  79. </html>
    80.