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

4a6146ad · Bobby Holley · 9aeabfb0 · 4a6146ad · 4a6146ad · 4a6146ad
Commit 4a6146ad authored 12 years ago by Bobby Holley
--- a/dom/tests/mochitest/bugs/Makefile.in
+++ b/dom/tests/mochitest/bugs/Makefile.in
@@ -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)

--- a/dom/tests/mochitest/bugs/test_bug743615.html
+++ b/dom/tests/mochitest/bugs/test_bug743615.html
+<!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>
--- a/dom/tests/mochitest/bugs/utils_bug743615.js
+++ b/dom/tests/mochitest/bugs/utils_bug743615.js
+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;
+}
--- a/dom/tests/mochitest/bugs/worker_bug743615.js
+++ b/dom/tests/mochitest/bugs/worker_bug743615.js
+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 });
+}