tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_removal_onload.html (3751B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <!--
      4 https://bugzilla.mozilla.org/show_bug.cgi?id=841579
      5 -->
      6 <head>
      7  <title>Test for Bug 841579</title>
      8  <script src="/tests/SimpleTest/SimpleTest.js"></script>
      9  <script src="/tests/SimpleTest/WindowSnapshot.js"></script>
     10  <script type="application/javascript" src="imgutils.js"></script>
     11  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
     12 </head>
     13 <body>
     14 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=841579">Mozilla Bug 841579</a>
     15 <p id="display"></p>
     16 <div id="content">
     17 </div>
     18 <pre id="test">
     19 <script type="application/javascript">
     20 /** Test for Bug 841579*/
     21 
     22 SimpleTest.requestFlakyTimeout("Early failure timeout");
     23 SimpleTest.waitForExplicitFinish();
     24 
     25 const FAILURE_TIMEOUT = 120000; // Fail early after 120 seconds (2 minutes)
     26 
     27 const Cc = SpecialPowers.Cc;
     28 const Ci = SpecialPowers.Ci;
     29 const gContent = document.getElementById("content");
     30 
     31 var gImg;
     32 var gMyDecoderObserver;
     33 var gIsTestFinished = false;
     34 var gFiles;
     35 var gNotifications = 0;
     36 var gLoads = 0;
     37 var gRemovals = 0;
     38 var gExpected = 5;
     39 
     40 function* fileToLoad() {
     41  yield "red.png";
     42  yield "invalid.jpg";
     43  yield "lime100x100.svg";
     44  yield "bad.jpg";
     45  yield "rillybad.jpg";
     46 }
     47 
     48 function onSizeAvailable() {
     49  ok(true, "AfterLoad.onSizeAvailable called for " + gImg.src);
     50 }
     51 function onLoadComplete() {
     52  ok(gExpected > gLoads, "AfterLoad.onLoadComplete called for " + gImg.src);
     53  gLoads++;
     54  SimpleTest.executeSoon(function() {
     55    try {
     56      gContent.removeChild(gImg);
     57    } 
     58    catch (e) {}
     59    gRemovals++;
     60    maybeAdvance();
     61  });
     62 }
     63 function onDecodeComplete() {
     64  ok(true, "AfterLoad.onDecodeComplete called for " + gImg.src);
     65 }
     66 
     67 function failTest() {
     68  ok(false, "timing out after " + FAILURE_TIMEOUT + "ms.  " +
     69            "currently displaying " + gImg.src);
     70  cleanUpAndFinish();
     71 }
     72 
     73 function onNotification()
     74 {
     75  gNotifications++;
     76  maybeAdvance();
     77 }
     78 
     79 function maybeAdvance()
     80 {
     81  if (gRemovals != gNotifications) {
     82    return;
     83  }
     84 
     85  let {done, value} = gFiles.next();
     86  if (done) {
     87    cleanUpAndFinish();
     88    return;
     89  }
     90  gImg.src = value;
     91  gContent.appendChild(gImg);
     92 }
     93 
     94 function cleanUpAndFinish() {
     95  // On the off chance that failTest and myOnStopFrame are triggered
     96  // back-to-back, use a flag to prevent multiple calls to SimpleTest.finish.
     97  if (gIsTestFinished) {
     98    return;
     99  }
    100  let imgLoadingContent = SpecialPowers.wrap(gImg);
    101  imgLoadingContent.removeObserver(gMyDecoderObserver);
    102  // TODO: this isn't the case until post-bug 716140's refactorings
    103  // ok(gNotifications == gLoads, "Should be notified the same number of times as loads");
    104  SimpleTest.finish();
    105  gIsTestFinished = true;
    106 }
    107 
    108 function main() {
    109  gFiles = fileToLoad();
    110  gImg = new Image();
    111  gImg.onload = onNotification;
    112  gImg.onerror = onNotification;
    113 
    114  // Create, customize & attach decoder observer
    115  var observer = new ImageDecoderObserverStub();
    116  observer.sizeAvailable = onSizeAvailable;
    117  observer.loadComplete = onLoadComplete;
    118  observer.decodeComplete = onDecodeComplete;
    119  gMyDecoderObserver =
    120    Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools)
    121      .createScriptedObserver(SpecialPowers.wrapCallbackObject(observer));
    122  let imgLoadingContent = SpecialPowers.wrap(gImg);
    123  imgLoadingContent.addObserver(gMyDecoderObserver);
    124 
    125  // We want to test the cold loading behavior, so clear cache in case an
    126  // earlier test got our image in there already.
    127  clearAllImageCaches();
    128 
    129  // kick off image-loading! myOnStopFrame handles the rest.
    130  gImg.setAttribute("src", gFiles.next());
    131 
    132  // In case something goes wrong, fail earlier than mochitest timeout,
    133  // and with more information.
    134  setTimeout(failTest, FAILURE_TIMEOUT);
    135 }
    136 
    137 window.onload = main;
    138 
    139 </script>
    140 </pre>
    141 </body>
    142 </html>