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Diffstat (limited to 'dom/workers/test/test_fileReaderSync.xhtml')
| -rw-r--r-- | dom/workers/test/test_fileReaderSync.xhtml | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/dom/workers/test/test_fileReaderSync.xhtml b/dom/workers/test/test_fileReaderSync.xhtml new file mode 100644 index 0000000000..7cdcaed791 --- /dev/null +++ b/dom/workers/test/test_fileReaderSync.xhtml @@ -0,0 +1,198 @@ +<?xml version="1.0"?> +<?xml-stylesheet type="text/css" href="chrome://global/skin"?> +<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=664783 +--> +<window title="Mozilla Bug 664783" + xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> + <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/> + <script type="application/javascript" src="dom_worker_helper.js"/> + + <!-- test results are displayed in the html:body --> + <body xmlns="http://www.w3.org/1999/xhtml"> + <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=664783" + target="_blank">Mozilla Bug 664783</a> + + <div id="content" style="display: none"> + <input id="fileList" type="file"></input> + </div> + + </body> + + <!-- test code goes here --> + <script type="application/javascript"> + <![CDATA[ + + /** Test for Bug 664783 **/ + + var fileNum = 0; + + /** + * Create a file which contains the given data and optionally adds the specified file extension. + */ + function createFileWithData(fileData, /** optional */ extension) { + var testFile = Cc["@mozilla.org/file/directory_service;1"] + .getService(Ci.nsIProperties) + .get("ProfD", Ci.nsIFile); + var fileExtension = (extension == undefined) ? "" : "." + extension; + testFile.append("workerFileReaderSync" + fileNum++ + fileExtension); + + var outStream = Cc["@mozilla.org/network/file-output-stream;1"] + .createInstance(Ci.nsIFileOutputStream); + outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate + 0o666, 0); + outStream.write(fileData, fileData.length); + outStream.close(); + + var fileList = document.getElementById('fileList'); + fileList.value = testFile.path; + + return fileList.files[0]; + } + + function convertToUTF16(s) { + res = ""; + for (var i = 0; i < s.length; ++i) { + c = s.charCodeAt(i); + res += String.fromCharCode(c & 255, c >>> 8); + } + return res; + } + + /** + * Converts the given string to a data URL of the specified mime type. + */ + function convertToDataURL(mime, s) { + return "data:" + mime + ";base64," + btoa(s); + } + + /** + * Create a worker to read a file containing fileData using FileReaderSync and + * checks the return type against the expected type. Optionally set an encoding + * for reading the file as text. + */ + function readFileData(fileData, expectedText, /** optional */ encoding) { + var worker = new Worker("fileReaderSync_worker.js"); + + worker.onmessage = function(event) { + is(event.data.text, expectedText, "readAsText in worker returned incorrect result."); + is(event.data.bin, fileData, "readAsBinaryString in worker returned incorrect result."); + is(event.data.url, convertToDataURL("application/octet-stream", fileData), "readAsDataURL in worker returned incorrect result."); + is(event.data.arrayBuffer.byteLength, fileData.length, "readAsArrayBuffer returned buffer of incorrect length."); + finish(); + }; + + worker.onerror = function(event) { + ok(false, "Worker had an error: " + event.message); + finish(); + }; + + var params = {file: createFileWithData(fileData), encoding: encoding}; + + worker.postMessage(params); + + waitForWorkerFinish(); + } + + /** + * Create a worker which reuses a FileReaderSync to read multiple files as DataURLs. + */ + function reuseReaderForURL(files, expected) { + var worker = new Worker("fileReaderSync_worker.js"); + + worker.onerror = function(event) { + ok(false, "Worker had an error: " + event.message); + finish(); + }; + + var k = 0; + worker.onmessage = function(event) { + is(event.data.url, expected[k], "readAsDataURL in worker returned incorrect result when reusing FileReaderSync."); + k++; + finish(); + }; + + for (var i = 0; i < files.length; ++i) { + var params = {file: files[i], encoding: undefined}; + worker.postMessage(params); + waitForWorkerFinish(); + } + } + + /** + * Create a worker which reuses a FileReaderSync to read multiple files as text. + */ + function reuseReaderForText(fileData, expected) { + var worker = new Worker("fileReaderSync_worker.js"); + + worker.onerror = function(event) { + ok(false, "Worker had an error: " + event.message); + finish(); + }; + + var k = 0; + worker.onmessage = function(event) { + is(event.data.text, expected[k++], "readAsText in worker returned incorrect result when reusing FileReaderSync."); + finish(); + }; + + for (var i = 0; i < fileData.length; ++i) { + var params = {file: createFileWithData(fileData[i]), encoding: undefined}; + worker.postMessage(params); + waitForWorkerFinish(); + } + } + + + /** + * Creates a a worker which reads a file containing fileData as an ArrayBuffer. + * Verifies that the ArrayBuffer when interpreted as a string matches the original data. + */ + function readArrayBuffer(fileData) { + var worker = new Worker("fileReaderSync_worker.js"); + + worker.onmessage = function(event) { + var view = new Uint8Array(event.data.arrayBuffer); + is(event.data.arrayBuffer.byteLength, fileData.length, "readAsArrayBuffer returned buffer of incorrect length."); + is(String.fromCharCode.apply(String, view), fileData, "readAsArrayBuffer returned buffer containing incorrect data."); + finish(); + }; + + worker.onerror = function(event) { + ok(false, "Worker had an error: " + event.message); + finish(); + }; + + var params = {file: createFileWithData(fileData), encoding: undefined}; + + worker.postMessage(params); + + waitForWorkerFinish(); + } + + // Empty file. + readFileData("", ""); + + // Typical use case. + readFileData("text", "text"); + + // Test reading UTF-16 characters. + readFileData(convertToUTF16("text"), "text", "UTF-16"); + + // First read a file of type "text/plain", then read a file of type "application/octet-stream". + reuseReaderForURL([createFileWithData("text", "txt"), createFileWithData("text")], + [convertToDataURL("text/plain", "text"), + convertToDataURL("application/octet-stream", "text")]); + + // First read UTF-16 characters marked using BOM, then read UTF-8 characters. + reuseReaderForText([convertToUTF16("\ufefftext"), "text"], + ["text", "text"]); + + // Reading data as ArrayBuffer. + readArrayBuffer(""); + readArrayBuffer("text"); + + ]]> + </script> +</window> |