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Bug 743615 - Tests. r=bent, a=blassey

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This commit is contained in:
Bobby Holley 2012-04-24 00:53:37 +02:00
parent 6dad3c142d
commit a78bcec20c
4 changed files with 150 additions and 0 deletions
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3
dom/tests/mochitest/bugs/Makefile.in
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@ -157,6 +157,9 @@ _TEST_FILES = \
test_bug735237.html \
test_bug739038.html \
test_bug740811.html \
test_bug743615.html \
utils_bug743615.js \
worker_bug743615.js \
$(NULL)
libs:: $(_TEST_FILES)

84
dom/tests/mochitest/bugs/test_bug743615.html Normal file
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@ -0,0 +1,84 @@
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=743615
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 743615</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="utils_bug743615.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=743615">Mozilla Bug 743615</a>
<p id="display"></p>
<div id="content" style="display: none">
<canvas id="c" width="200" height="200"><canvas>
</div>
<pre id="test">
<script type="application/javascript">
/** Test for structured cloning ImageData. **/
SimpleTest.waitForExplicitFinish();
window.addEventListener('message', windowMessage);
startTest();
function startTest() {
// Make an ImageData.
var ctx = document.getElementById('c').getContext('2d');
ctx.fillStyle = 'rgb(';
ctx.fillRect(30, 30, 50, 50);
// Make a blank ImageData.
var imageData = ctx.createImageData(200, 200);
is(imageData.data.length, imageData.width * imageData.height * 4,
'right size for data');
// Write some things into it.
var pattern = makePattern(imageData.data.length, 42, 7);
setPattern(imageData, pattern);
ok(checkPattern(imageData, pattern), 'Can read it back before sending');
// PostMessage it to ourselves.
window.postMessage({ imageData: imageData,
pattern: pattern,
dataRef: imageData.data }, '*');
}
function windowMessage(evt) {
// Check the pattern we received.
var imageData = evt.data.imageData;
var pattern = evt.data.pattern;
ok(checkPattern(imageData, pattern),
'postMessage from self worked correctly');
// We're not spec compliant on this yet.
todo_is(imageData.data, evt.data.dataRef,
'Should have backrefs for imagedata buffer');
// Make a new pattern, and send it to a worker.
pattern = makePattern(imageData.data.length, 4, 3);
setPattern(imageData, pattern);
var worker = new Worker('worker_bug743615.js');
worker.onmessage = workerMessage;
worker.postMessage( {imageData: imageData, pattern: pattern });
}
function workerMessage(evt) {
// Relay the results of the worker-side tests.
is(evt.data.statusMessage, 'PASS', evt.data.statusMessage);
// Test what the worker sent us.
ok(checkPattern(evt.data.imageData, evt.data.pattern),
'postMessage from worker worked correctly');
// All done.
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>

25
dom/tests/mochitest/bugs/utils_bug743615.js Normal file
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@ -0,0 +1,25 @@
function makePattern(len, start, inc) {
var pattern = [];
while(len) {
pattern.push(start);
start = (start + inc) % 256;
--len;
}
return pattern;
}
function setPattern(imageData, pattern) {
if (pattern.length != imageData.data.length)
throw Error('Invalid pattern');
for (var i = 0; i < pattern.length; ++i)
imageData.data[i] = pattern[i];
}
function checkPattern(imageData, pattern) {
if (pattern.length != imageData.data.length)
throw Error('Invalid pattern');
for (var i = 0; i < pattern.length; ++i)
if (imageData.data[i] != pattern[i])
return false;
return true;
}

38
dom/tests/mochitest/bugs/worker_bug743615.js Normal file
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@ -0,0 +1,38 @@
importScripts('utils_bug743615.js');
self.onmessage = function onMessage(evt) {
// Check the pattern that was sent.
var imageData = evt.data.imageData;
var pattern = evt.data.pattern;
var statusMessage = checkPattern(imageData, pattern)
? 'PASS' : 'Got corrupt typed array in worker';
// Check against the interface object.
if (!(imageData instanceof ImageData))
statusMessage += ", Bad interface object in worker";
// Check the getters.
if (imageData.width * imageData.height != imageData.data.length / 4) {
statusMessage += ", Bad ImageData getters in worker: "
statusMessage += [imageData.width, imageData.height].join(', ');
}
// Make sure that writing to .data is a no-op when not in strict mode.
var origData = imageData.data;
var threw = false;
try {
imageData.data = [];
imageData.width = 2;
imageData.height = 2;
} catch(e) { threw = true; }
if (threw || imageData.data !== origData)
statusMessage = statusMessage + ", Should silently ignore sets";
// Send back a new pattern.
pattern = makePattern(imageData.data.length, 99, 2);
setPattern(imageData, pattern);
self.postMessage({ statusMessage: statusMessage, imageData: imageData,
pattern: pattern });
}