test_fileSlice.xhtml (3445B)
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("workerSlice" + 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 * Starts a worker which slices the blob to the given start offset and optional end offset and 56 * content type. It then verifies that the size and type of the sliced blob is correct. 57 */ 58 function createSlice(blob, start, expectedLength, /** optional */ end, /** optional */ contentType) { 59 var worker = new Worker("fileSlice_worker.js"); 60 61 worker.onerror = function(event) { 62 ok(false, "Worker had an error: " + event.message); 63 finish(); 64 }; 65 66 worker.onmessage = function(event) { 67 is(event.data.size, expectedLength, "size property of slice is incorrect."); 68 is(event.data.type, contentType ? contentType : blob.type, "type property of slice is incorrect."); 69 finish(); 70 }; 71 72 var params = {blob, start, end, contentType}; 73 worker.postMessage(params); 74 waitForWorkerFinish(); 75 } 76 77 // Empty file. 78 createSlice(createFileWithData(""), 0, 0, 0); 79 80 // Typical use case. 81 createSlice(createFileWithData("Hello"), 1, 1, 2); 82 83 // Longish file. 84 var text = ""; 85 for (var i = 0; i < 10000; ++i) { 86 text += "long"; 87 } 88 createSlice(createFileWithData(text), 2000, 2000, 4000); 89 90 // Slice to different type. 91 createSlice(createFileWithData("text", "txt"), 0, 2, 2, "image/png"); 92 93 // Length longer than blob. 94 createSlice(createFileWithData("text"), 0, 4, 20); 95 96 // Start longer than blob. 97 createSlice(createFileWithData("text"), 20, 0, 4); 98 99 // No optional arguments 100 createSlice(createFileWithData("text"), 0, 4); 101 createSlice(createFileWithData("text"), 2, 2); 102 103 ]]> 104 </script> 105 </window>