<html>
<head>
<script src="../../resources/js-test.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
description("Tests XMLHttpRequest 'arraybuffer' loading with the .responseType and .response attributes.");
var xhr = 0;
var lastState = 0;
function stateChange() {
// Protect against race-condition where .onreadystatechange sometimes will be called multiple times for the same state.
if (xhr.readyState == lastState)
return;
lastState = xhr.readyState;
if (xhr.readyState == XMLHttpRequest.DONE) {
// Check that .response exists when .readyState is DONE
if (xhr.response)
testPassed("'arraybuffer' .response exists when .readyState is " + xhr.readyState + ".");
else
testFailed("'arraybuffer' .response should exist when .readyState is " + xhr.readyState + ".");
} else {
// Otherwise, for 'arraybuffer' the .response should not yet exist.
if (!xhr.response)
testPassed("'arraybuffer' .response does not exist when .readyState is " + xhr.readyState + ".");
else
testFailed("'arraybuffer' .response should not exist when .readyState is " + xhr.readyState + ".");
}
}
function logBytesAtOffset(buffer8, offset) {
var s = "bytes at offset " + offset + " : ";
for (var i = 0; i < 8; ++i)
s += buffer8[i + offset].toString(16) + ' ';
debug(s);
}
function load() {
testPassed('DONE LOADING');
testPassed('received response object : ' + xhr.response + ".");
// Make sure exception is thrown if responseType is set too late in the loading process.
try {
xhr.responseType = "text";
} catch(e) {
testPassed("exception correctly thrown when xhr.responseType is set to valid value too late in the loading process : " + e + ".");
}
var buffer = xhr.response;
// Interpret the ArrayBuffer as Uint8Array.
var buffer8 = new Uint8Array(buffer);
buffer8.set(buffer);
var totalLength = buffer8.length;
debug('response length : ' + totalLength + ".");
// Log the bytes at the start, in the middle, and near the end:
logBytesAtOffset(buffer8, 0);
logBytesAtOffset(buffer8, 0x5720A);
logBytesAtOffset(buffer8, 0xA39D6);
// Calculate checksum.
var sum = 0;
for (var i = 0; i < totalLength; ++i) {
sum += buffer8[i];
}
debug('checksum : ' + sum);
// Check that xhr.responseText throws an exception:
try {
var x = xhr.responseText;
} catch(e) {
testPassed("exception correctly thrown when xhr.responseText is accessed but responseType is 'arraybuffer' : " + e + ".");
}
// Check that xhr.responseXML throws an exception:
try {
var x = xhr.responseXML;
} catch(e) {
testPassed("exception correctly thrown when xhr.responseXML is accessed but responseType is 'arraybuffer' : " + e + ".");
}
// Test .response garbage collection.
xhr.response.foo = "bar";
gc();
shouldBe("xhr.response.foo", "'bar'");
xhr = null;
finishJSTest();
}
function runTest() {
if (window.testRunner) {
testRunner.dumpAsText();
testRunner.waitUntilDone();
}
xhr = new XMLHttpRequest();
xhr.onreadystatechange = stateChange;
xhr.onload = load;
xhr.open("GET", "../../http/tests/resources/balls-of-the-orient.aif", true);
try {
if ("responseType" in xhr)
testPassed("responseType property exists.");
if ("response" in xhr)
testPassed("response property exists.");
if (xhr.responseType == "")
testPassed("xhr.responseType is initially set to default value of empty string.");
// Make sure we can set responseType to valid values before send() is called.
try {
xhr.responseType = "";
if (xhr.responseType == "")
testPassed("xhr.responseType has been correctly set to ''.");
xhr.responseType = "text";
if (xhr.responseType == "text")
testPassed("xhr.responseType has been correctly set to 'text'.");
xhr.responseType = "document";
if (xhr.responseType == "document")
testPassed("xhr.responseType has been correctly set to 'document'.");
xhr.responseType = "arraybuffer";
if (xhr.responseType == "arraybuffer")
testPassed("xhr.responseType has been correctly set to 'arraybuffer'.");
} catch(e) {
testFailed("unable to set xhr.responseType to a valid value " + e + ".");
}
} catch(e) {
testFailed("Caught exception " + e + ".");
}
xhr.send(null);
window.jsTestIsAsync = true;
}
runTest();
</script>
</body>
</html>