1 files changed, 35 insertions, 0 deletions
diff --git a/dom/canvas/test/imagebitmap_structuredclone.js b/dom/canvas/test/imagebitmap_structuredclone.js
new file mode 100644
index 000000000..56bbdf228
--- /dev/null
+++ b/dom/canvas/test/imagebitmap_structuredclone.js
@@ -0,0 +1,35 @@
+function ok(expect, msg) {
+  postMessage({"type": "status", status: !!expect, msg: msg});
+}
+
+onmessage = function(event) {
+  ok(!!event.data.bitmap1, "Get the 1st ImageBitmap from the main script.");
+  ok(!!event.data.bitmap2, "Get the 2nd ImageBitmap from the main script.");
+  ok(!!event.data.bitmap3, "Get the 3rd ImageBitmap from the main script.");
+
+  // send the first original ImageBitmap back to the main-thread
+  postMessage({"type":"bitmap1",
+               "bitmap":event.data.bitmap1});
+
+  // create a new ImageBitmap from the 2nd original ImageBitmap
+  // and then send the newly created ImageBitmap back to the main-thread
+  var promise = createImageBitmap(event.data.bitmap2);
+  promise.then(
+    function(bitmap) {
+      ok(true, "Successfully create a new ImageBitmap from the 2nd original bitmap in worker.");
+
+      // send the newly created ImageBitmap back to the main-thread
+      postMessage({"type":"bitmap2", "bitmap":bitmap});
+
+      // finish the test
+      postMessage({"type": "finish"});
+    },
+    function() {
+      ok(false, "Cannot create a new bitmap from the original bitmap in worker.");
+    }
+  );
+
+  // send the third original ImageBitmap back to the main-thread
+  postMessage({"type":"bitmap3",
+               "bitmap":event.data.bitmap3});
+}