Bug 953005 - part2 - test_mobile_connections_array_uninitialized

dom/network/tests/marionette/manifest.ini

@@ -20,3 +20,4 @@ disabled = Bug 808783
 [test_call_barring_change_password.js]
 [test_mobile_set_radio.js]
 [test_mobile_last_known_network.js]
+[test_mobile_connections_array_uninitialized.js]

dom/network/tests/marionette/test_mobile_connections_array_uninitialized.js

@@ -0,0 +1,32 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+MARIONETTE_TIMEOUT = 1000;
+
+SpecialPowers.addPermission("mobileconnection", true, document);
+
+// Permission changes can't change existing Navigator.prototype
+// objects, so grab our objects from a new Navigator
+let ifr = document.createElement("iframe");
+let connections;
+
+ifr.onload = function() {
+  connections = ifr.contentWindow.navigator.mozMobileConnections;
+
+  // mozMobileConnections hasn't been initialized yet.
+  ok(connections);
+  is(connections.length, 1);
+
+  ifr.parentNode.removeChild(ifr);
+  ifr = null;
+  connections = null;
+
+  SpecialPowers.gc();
+  cleanUp();
+};
+document.body.appendChild(ifr);
+
+function cleanUp() {
+  SpecialPowers.removePermission("mobileconnection", document);
+  finish();
+}