1 files changed, 24 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.any.js b/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.any.js
new file mode 100644
index 0000000000..0fd8c7e90a
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/Channel_postMessage_event_properties.any.js
@@ -0,0 +1,24 @@
+// META: title=postMessage(): MessageEvent properties
+
+    var TargetPort = null;
+    var description = "The postMessage() method - Create an event that uses the MessageEvent interface, "
+                    + "with the name message, which does not bubble and is not cancelable.";
+
+    var t = async_test("Test Description: " + description);
+
+    var channel = new MessageChannel();
+
+    TargetPort = channel.port2;
+    TargetPort.start();
+    TargetPort.addEventListener("message", t.step_func(TestMessageEvent), true);
+
+    channel.port1.postMessage("ping");
+
+    function TestMessageEvent(evt)
+    {
+        ExpectedResult = [true, "message", false, false];
+        ActualResult = [(evt instanceof MessageEvent), evt.type, evt.bubbles, evt.cancelable];
+
+        assert_array_equals(ActualResult, ExpectedResult);
+        t.done();
+    }