js/xpconnect/tests/chrome/test_discardSystemSource.xhtml

   1 <?xml version="1.0"?>
   2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?>
   3 <?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
   4 <!--
   5 https://bugzilla.mozilla.org/show_bug.cgi?id=990353
   6 -->
   7 <window title="Mozilla Bug 990353"
   8         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   9   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
  10
  11   <!-- test results are displayed in the html:body -->
  12   <body xmlns="http://www.w3.org/1999/xhtml">
  13   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=990353"
  14      target="_blank">Mozilla Bug 990353</a>
  15   </body>
  16
  17   <!-- test code goes here -->
  18   <script type="application/javascript">
  19   <![CDATA[
  20   /** Test for Bug 990353 **/
  21   SimpleTest.waitForExplicitFinish();
  22
  23   function canary() {
  24     // eslint-disable-next-line no-unused-vars
  25     var someBitOfSource = 42;
  26   }
  27
  28   var gLoadCount = 0;
  29   function frameLoaded() {
  30     switch (++gLoadCount) {
  31       case 1:
  32         ok(/native code/.test(window[0].canary.toString()), "System function should be sourceless: " + window[0].canary.toString());
  33         ok(/native code/.test(window[0].onload.toString()), "System event handler should be sourceless: " + window[0].onload.toString());
  34         var sb = new Cu.Sandbox("https://www.example.com", { discardSource: true });
  35         Cu.evalInSandbox('function canary() { var someBitOfSource = 42; }', sb);
  36         ok(/native code/.test(sb.canary.toString()), "Function from sandbox with explicit discarding should be sourceless");
  37         try {
  38           window[0].throwSomething();
  39           ok(false, "should have thrown");
  40         } catch (e) {
  41           ok(/some error/.test(e), "Threw exception as expected: " + e);
  42           ok(/throwSomething/.test(e.stack), "Exception stack trace works: " + e.stack);
  43         }
  44         window[0].location = "https://example.org/tests/js/xpconnect/tests/chrome/file_discardSystemSource.html";
  45         break;
  46       case 2:
  47         ok(/someBitOfSource/.test(Cu.waiveXrays(window[0]).canary.toString()), "Content function should have source");
  48         ok(/someBitOfSource/.test(Cu.waiveXrays(window[0]).onload.toString()), "Content event handler should have source");
  49         testWorker();
  50         break;
  51     }
  52   }
  53
  54   function testWorker() {
  55     var worker = new window[0].wrappedJSObject.Worker('worker_discardSystemSource.js');
  56     worker.onmessage = function(evt) {
  57       ok(/someBitOfSource/.test(evt.data), "Non-chrome worker should have source: " + evt.data);
  58       var chromeWorker = new Worker('worker_discardSystemSource.js');
  59       chromeWorker.onmessage = function(evt) {
  60         ok(/native code/.test(evt.data), "Chrome worker should not have source: " + evt.data);
  61         SimpleTest.finish();
  62       }
  63     }
  64   }
  65
  66   function go() {
  67     // We should have our own source, because the pref wasn't enabled when we
  68     // were loaded.
  69     ok(/someBitOfSource/.test(canary.toString()), "Should have own source");
  70
  71     window[0].frameElement.onload = frameLoaded;
  72     window[0].location = "file_discardSystemSource.html";
  73   }
  74   addLoadEvent(function() {
  75     SpecialPowers.pushPrefEnv({set: [['javascript.options.discardSystemSource', true]]}, go);
  76   });
  77
  78   ]]>
  79   </script>
  80   <iframe></iframe>
  81 </window>