The Tor Browser: content/media/test/test_load_same_resource.html@97036ab72558 (annotated)

content/media/test/test_load_same_resource.html@97036ab72558 (annotated)

content/media/test/test_load_same_resource.html

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 <!DOCTYPE HTML>
 <html>
 <head>
   <title>Test loading of the same resource in multiple elements</title>
   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
   <script type="text/javascript" src="manifest.js"></script>
 </head>
 <body>
 <pre id="test">
 <script class="testbody" type="text/javascript">
 var manager = new MediaTestManager;
 function cloneLoaded(event) {
   ok(true, "Clone loaded OK");
   var e = event.target;
   if (e._expectedDuration) {
     ok(Math.abs(e.duration - e._expectedDuration) < 0.1,
        "Clone " + e.currentSrc + " duration: " + e.duration + " expected: " + e._expectedDuration);
   }
   e.removeEventListener("loadeddata", cloneLoaded, false);
   removeNodeAndSource(e);
   manager.finished(e.token);
 }
 function tryClone(event) {
   var e = event.target;
   var clone = e.cloneNode(false);
   clone.token = e.token;
   if (e._expectedDuration) {
     ok(Math.abs(e.duration - e._expectedDuration) < 0.1,
        e.currentSrc + " duration: " + e.duration + " expected: " + e._expectedDuration);
     clone._expectedDuration = e._expectedDuration;
   }
   clone.addEventListener("loadeddata", cloneLoaded, false);
   clone.onloadstart = function(evt) {
     info("cloned " + evt.target.token + " start loading.");
     evt.target.onloadstart = null;
     // Since there is only one H264 decoder instance, we have to delete the
     // decoder of the original element for the cloned element to load. However,
     // we can't delete the decoder too early otherwise cloning decoder will
     // fail to kick in. We wait for 'loadstart' event of the cloned element to
     // know when the decoder is already cloned and we can delete the decoder of
     // the original element.
     removeNodeAndSource(e);
   }
   e.removeEventListener("loadeddata", tryClone, false);
 }
 // This test checks that loading the same URI twice in different elements at the same time
 // uses the same resource without doing another network fetch. One of the gCloneTests
 // uses dynamic_resource.sjs to return one resource on the first fetch and a different resource
 // on the second fetch. These resources have different lengths, so if the cloned element
 // does a network fetch it will get a resource with the wrong length and we get a test
 // failure.
 function initTest(test, token) {
   var elemType = /^audio/.test(test.type) ? "audio" : "video";
   var e = document.createElement(elemType);
   e.preload = "auto";
   if (e.canPlayType(test.type)) {
     e.src = test.name;
     if (test.duration) {
       e._expectedDuration = test.duration;
     }
     ok(true, "Trying to load " + test.name);
     e.addEventListener("loadeddata", tryClone, false);
     e.load();
     e.token = token;
     manager.started(token);
   }
 }
 manager.runTests(gCloneTests, initTest);
 </script>
 </pre>
 </body>
 </html>

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content/media/test/test_load_same_resource.html@97036ab72558 (annotated)

content/media/test/test_load_same_resource.html