dom/workers/test/test_fileSubWorker.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=664783
   6 -->
   7 <window title="Mozilla Bug 664783"
   8         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   9   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
  10   <script type="application/javascript" src="dom_worker_helper.js"/>
  11
  12   <!-- test results are displayed in the html:body -->
  13   <body xmlns="http://www.w3.org/1999/xhtml">
  14   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=664783"
  15      target="_blank">Mozilla Bug 664783</a>
  16
  17   <div id="content" style="display: none">
  18     <input id="fileList" type="file"></input>
  19   </div>
  20
  21   </body>
  22
  23   <!-- test code goes here -->
  24   <script type="application/javascript">
  25   <![CDATA[
  26
  27   /** Test for Bug 664783 **/
  28
  29   var fileNum = 0;
  30
  31   /**
  32    * Create a file which contains the given data and optionally adds the specified file extension.
  33    */
  34   function createFileWithData(fileData, /** optional */ extension) {
  35     var testFile = Cc["@mozilla.org/file/directory_service;1"]
  36                        .getService(Ci.nsIProperties)
  37                        .get("ProfD", Ci.nsIFile);
  38     var fileExtension = (extension == undefined) ? "" : "." + extension;
  39     testFile.append("workerSubWorker" + fileNum++ + fileExtension);
  40
  41     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
  42                         .createInstance(Ci.nsIFileOutputStream);
  43     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
  44                    0o666, 0);
  45     outStream.write(fileData, fileData.length);
  46     outStream.close();
  47
  48     var fileList = document.getElementById('fileList');
  49     fileList.value = testFile.path;
  50
  51     return fileList.files[0];
  52   }
  53
  54   /**
  55    * Create a worker to access file properties.
  56    */
  57   function accessFileProperties(file, expectedSize, expectedType) {
  58     var worker = new Worker("fileSubWorker_worker.js");
  59
  60     worker.onerror = function(event) {
  61       ok(false, "Worker had an error: " + event.message);
  62       finish();
  63     };
  64
  65     worker.onmessage = function(event) {
  66       if (event.data == undefined) {
  67         ok(false, "Worker had an error.");
  68       } else {
  69         is(event.data.size, expectedSize, "size proproperty accessed from worker is not the same as on main thread.");
  70         is(event.data.type, expectedType, "type proproperty accessed from worker is incorrect.");
  71         is(event.data.name, file.name, "name proproperty accessed from worker is incorrect.");
  72       }
  73       finish();
  74     };
  75
  76     worker.postMessage(file);
  77     waitForWorkerFinish();
  78   }
  79
  80   // Empty file.
  81   accessFileProperties(createFileWithData(""), 0, "");
  82
  83   // Typical use case.
  84   accessFileProperties(createFileWithData("Hello"), 5, "");
  85
  86   // Longish file.
  87   var text = "";
  88   for (var i = 0; i < 10000; ++i) {
  89     text += "long";
  90   }
  91   accessFileProperties(createFileWithData(text), 40000, "");
  92
  93   // Type detection based on extension.
  94   accessFileProperties(createFileWithData("text", "txt"), 4, "text/plain");
  95
  96   ]]>
  97   </script>
  98 </window>