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<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="/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 type="application/javascript"
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[
if (navigator.platform.startsWith("Win")) {
SimpleTest.expectAssertions(0, 1);
}
/** Test for Bug 664783 **/
var fileNum = 0;
/**
* Create a file which contains the given data.
*/
function createFileWithData(fileData) {
var testFile = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties)
.get("ProfD", Components.interfaces.nsIFile);
testFile.append("workerReadSlice" + fileNum++);
var outStream = Components.classes["@mozilla.org/network/file-output-stream;1"]
.createInstance(Components.interfaces.nsIFileOutputStream);
outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
0666, 0);
outStream.write(fileData, fileData.length);
outStream.close();
var fileList = document.getElementById('fileList');
fileList.value = testFile.path;
return fileList.files[0];
}
/**
* Creates a worker which slices a blob to the given start and end offset and
* reads the content as text.
*/
function readSlice(blob, start, end, expectedText) {
var worker = new Worker("fileReadSlice_worker.js");
worker.onerror = function(event) {
ok(false, "Worker had an error: " + event.message);
finish();
};
worker.onmessage = function(event) {
is(event.data, expectedText, "Text from sliced blob in worker is incorrect.");
finish();
};
var params = {blob: blob, start: start, end: end};
worker.postMessage(params);
waitForWorkerFinish();
}
// Empty file.
readSlice(createFileWithData(""), 0, 0, "");
// Typical use case.
readSlice(createFileWithData("HelloBye"), 5, 8, "Bye");
// End offset too large.
readSlice(createFileWithData("HelloBye"), 5, 9, "Bye");
// Start of file.
readSlice(createFileWithData("HelloBye"), 0, 5, "Hello");
]]>
</script>
</window>
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