content/base/test/test_bug421602.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=421602
   5 -->
   6 <head>
   7   <title>Test for Bug 421602</title>
   8   <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
   9   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  11 </head>
  12 <body>
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=421602">Mozilla Bug 421602</a>
  14 <p id="display"></p>
  15 <div id="content" style="display: none">
  16
  17 </div>
  18 <pre id="test">
  19 <script class="testbody" type="text/javascript">
  20
  21 /** Test for Bug 421602 **/
  22 SimpleTest.waitForExplicitFinish();
  23
  24 var img1loaded = false;
  25 var img2loaded = false;
  26 var img1errored = false;
  27 var img2errored = false;
  28
  29 function gc() {
  30   netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  31   window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
  32         .getInterface(Components.interfaces.nsIDOMWindowUtils)
  33         .garbageCollect();
  34 }
  35
  36 // Our test image
  37 function loadTestImage() {
  38   var img1 = new Image();
  39   img1.onload = function() { img1loaded = true; }
  40   img1.onerror = function() {
  41     is(img2errored, false, "Image 3 should not error before image 2");
  42     img1errored = true;
  43   }
  44   img1.src = window.location.href + "?image1=true";
  45 }
  46 loadTestImage();
  47
  48 // Probably overkill to gc() more than once, but let's be safe
  49 gc(); gc(); gc();
  50
  51 // And now our "wrap the test up" image.
  52 var img2 = new Image();
  53 img2.onload = function() { img2loaded = true; }
  54 img2.onerror = function() { img2errored = true; finishTest(); }
  55 img2.src = window.location.href + "?image2=true";
  56
  57 function finishTest() {
  58   is(img1errored, true, "Image 1 should error");
  59   is(img2errored, true, "Image 2 should error");
  60   is(img1loaded, false, "Image 1 should not load");
  61   is(img2loaded, false, "Image 2 should not load");
  62   SimpleTest.finish();
  63 }
  64 </script>
  65 </pre>
  66 </body>
  67 </html>
  68