diff -r 000000000000 -r 6474c204b198 dom/mobilemessage/tests/marionette/test_between_emulators.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/mobilemessage/tests/marionette/test_between_emulators.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,43 @@
+from marionette_test import *
+
+
+class SMSTest(MarionetteTestCase):
+
+    @unittest.expectedFailure
+    def test_sms_between_emulators(self):
+        # Tests always have one emulator available as self.marionette; we'll
+        # use this for the receiving emulator.  We'll also launch a second
+        # emulator to use as the sender.
+        sender = self.get_new_emulator()
+        receiver = self.marionette
+
+        self.set_up_test_page(sender, "test.html", ["sms"])
+        self.set_up_test_page(receiver, "test.html", ["sms"])
+
+        # Setup the event listsener on the receiver, which should store
+        # a global variable when an SMS is received.
+        message = 'hello world!'
+        self.assertTrue(receiver.execute_script("return window.navigator.mozMobileMessage != null;"))
+        receiver.execute_script("""
+global.smsreceived = null;
+window.navigator.mozMobileMessage.addEventListener("received", function(e) {
+    global.smsreceived = e.message.body;
+});
+""", new_sandbox=False)
+
+        # Send the SMS from the sender.
+        sender.execute_script("""
+window.navigator.mozMobileMessage.send("%d", "%s");
+""" % (receiver.emulator.port, message))
+
+        # On the receiver, wait up to 10s for an SMS to be received, by 
+        # checking the value of the global var that the listener will change.
+        receiver.set_script_timeout(0) # TODO no timeout for now since the test fails
+        received = receiver.execute_async_script("""
+        waitFor(function () {
+            marionetteScriptFinished(global.smsreceived);
+        }, function () {
+            return global.smsreceived
+        });
+        """, new_sandbox=False)
+        self.assertEqual(received, message)