1 files changed, 44 insertions, 0 deletions
diff --git a/dom/tests/mochitest/bugs/worker_bug743615.js b/dom/tests/mochitest/bugs/worker_bug743615.js
new file mode 100644
index 0000000000..16c5617bd2
--- /dev/null
+++ b/dom/tests/mochitest/bugs/worker_bug743615.js
@@ -0,0 +1,44 @@
+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,
+    imageData,
+    pattern,
+  });
+};