dom/workers/test/test_fileSlice.xul

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 <?xml version="1.0"?>
     2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?>
     3 <?xml-stylesheet type="text/css" href="/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 type="application/javascript"
    10           src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
    11   <script type="application/javascript" src="dom_worker_helper.js"/>
    13   <!-- test results are displayed in the html:body -->
    14   <body xmlns="http://www.w3.org/1999/xhtml">
    15   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=664783"
    16      target="_blank">Mozilla Bug 664783</a>
    18   <div id="content" style="display: none">
    19     <input id="fileList" type="file"></input>
    20   </div>
    22   </body>
    24   <!-- test code goes here -->
    25   <script type="application/javascript">
    26   <![CDATA[
    28   /** Test for Bug 664783 **/
    30   var fileNum = 0;
    32   /**
    33    * Create a file which contains the given data and optionally adds the specified file extension.
    34    */
    35   function createFileWithData(fileData, /** optional */ extension) {
    36     var testFile = Components.classes["@mozilla.org/file/directory_service;1"]
    37                        .getService(Components.interfaces.nsIProperties)
    38                        .get("ProfD", Components.interfaces.nsIFile);
    39     var fileExtension = (extension == undefined) ? "" : "." + extension;
    40     testFile.append("workerSlice" + fileNum++ + fileExtension);
    42     var outStream = Components.classes["@mozilla.org/network/file-output-stream;1"]
    43                         .createInstance(Components.interfaces.nsIFileOutputStream);
    44     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
    45                    0666, 0);
    46     outStream.write(fileData, fileData.length);
    47     outStream.close();
    49     var fileList = document.getElementById('fileList');
    50     fileList.value = testFile.path;
    52     return fileList.files[0];
    53   }
    55   /**
    56    * Starts a worker which slices the blob to the given start offset and optional end offset and
    57    * content type. It then verifies that the size and type of the sliced blob is correct.
    58    */
    59   function createSlice(blob, start, expectedLength, /** optional */ end, /** optional */ contentType) {
    60     var worker = new Worker("fileSlice_worker.js");
    62     worker.onerror = function(event) {
    63       ok(false, "Worker had an error: " + event.data);
    64       finish();
    65     };
    67     worker.onmessage = function(event) {
    68       is(event.data.size, expectedLength, "size property of slice is incorrect.");
    69       is(event.data.type, contentType ? contentType : blob.type, "type property of slice is incorrect.");
    70       finish();
    71     };
    73     var params = {blob: blob, start: start, end: end, contentType: contentType};
    74     worker.postMessage(params);
    75     waitForWorkerFinish();
    76   }
    78   // Empty file.
    79   createSlice(createFileWithData(""), 0, 0, 0);
    81   // Typical use case.
    82   createSlice(createFileWithData("Hello"), 1, 1, 2);
    84   // Longish file.
    85   var text = "";
    86   for (var i = 0; i < 10000; ++i) {
    87     text += "long";
    88   }
    89   createSlice(createFileWithData(text), 2000, 2000, 4000);
    91   // Slice to different type.
    92   createSlice(createFileWithData("text", "txt"), 0, 2, 2, "image/png");
    94   // Length longer than blob.
    95   createSlice(createFileWithData("text"), 0, 4, 20);
    97   // Start longer than blob.
    98   createSlice(createFileWithData("text"), 20, 0, 4);
   100   // No optional arguments
   101   createSlice(createFileWithData("text"), 0, 4);
   102   createSlice(createFileWithData("text"), 2, 2);
   104   ]]>
   105   </script>
   106 </window>

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