gecko-dev/dom/workers/test/test_fileReader.html

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<!DOCTYPE HTML>
<html>
<head>
<title>Test for FileReader in workers</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script type="text/javascript">
const minFileSize = 20000;
SimpleTest.waitForExplicitFinish();
// Create strings containing data we'll test with. We'll want long
// strings to ensure they span multiple buffers while loading
var testTextData = "asd b\tlah\u1234w\u00a0r";
while (testTextData.length < minFileSize) {
testTextData = testTextData + testTextData;
}
var testASCIIData = "abcdef 123456\n";
while (testASCIIData.length < minFileSize) {
testASCIIData = testASCIIData + testASCIIData;
}
var testBinaryData = "";
for (var i = 0; i < 256; i++) {
testBinaryData += String.fromCharCode(i);
}
while (testBinaryData.length < minFileSize) {
testBinaryData = testBinaryData + testBinaryData;
}
var dataurldata0 = testBinaryData.substr(0, testBinaryData.length -
testBinaryData.length % 3);
var dataurldata1 = testBinaryData.substr(0, testBinaryData.length - 2 -
testBinaryData.length % 3);
var dataurldata2 = testBinaryData.substr(0, testBinaryData.length - 1 -
testBinaryData.length % 3);
//Set up files for testing
var openerURL = SimpleTest.getTestFileURL("fileapi_chromeScript.js");
var opener = SpecialPowers.loadChromeScript(openerURL);
opener.addMessageListener("files.opened", onFilesOpened);
opener.sendAsyncMessage("files.open", [
testASCIIData,
testBinaryData,
null,
convertToUTF8(testTextData),
convertToUTF16(testTextData),
"",
dataurldata0,
dataurldata1,
dataurldata2,
]);
function onFilesOpened(message) {
var worker = new Worker('worker_fileReader.js');
worker.postMessage({ blobs: message,
testTextData: testTextData,
testASCIIData: testASCIIData,
testBinaryData: testBinaryData,
dataurldata0: dataurldata0,
dataurldata1: dataurldata1,
dataurldata2: dataurldata2 });
worker.onmessage = function(e) {
var msg = e.data;
if (msg.type == 'finish') {
SimpleTest.finish();
return;
}
if (msg.type == 'check') {
ok(msg.status, msg.msg);
return;
}
ok(false, "Unknown message.");
}
}
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;
}
function convertToUTF8(s) {
return unescape(encodeURIComponent(s));
}
</script>
</body>
</html>