diff -r 000000000000 -r 6474c204b198 mobile/android/base/tests/testVideoDiscovery.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/base/tests/testVideoDiscovery.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,84 @@
+// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+
+function ok(passed, text) {
+  do_report_result(passed, text, Components.stack.caller, false);
+}
+
+// The chrome window
+let chromeWin;
+
+// Track the <browser> where the tests are happening
+let browser;
+
+function middle(element) {
+  let rect = element.getBoundingClientRect();
+  let x = (rect.right - rect.left) / 2 + rect.left;
+  let y = (rect.bottom - rect.top) / 2 + rect.top;
+  return [x, y];
+}
+
+add_test(function setup_browser() {
+  chromeWin = Services.wm.getMostRecentWindow("navigator:browser");
+  let BrowserApp = chromeWin.BrowserApp;
+
+  do_register_cleanup(function cleanup() {
+    BrowserApp.closeTab(BrowserApp.getTabForBrowser(browser));
+  });
+
+  let url = "http://mochi.test:8888/tests/robocop/video_discovery.html";
+  browser = BrowserApp.addTab(url, { selected: true, parentId: BrowserApp.selectedTab.id }).browser;
+  browser.addEventListener("load", function startTests(event) {
+    browser.removeEventListener("load", startTests, true);
+    Services.tm.mainThread.dispatch(run_next_test, Ci.nsIThread.DISPATCH_NORMAL);
+  }, true);
+});
+
+let videoDiscoveryTests = [
+  { id: "simple-mp4", source: "http://mochi.test:8888/simple.mp4", poster: "http://mochi.test:8888/simple.png", text: "simple video with mp4 src" },
+  { id: "simple-fail", pass: false, text: "simple video with no mp4 src" },
+  { id: "with-sources-mp4", source: "http://mochi.test:8888/simple.mp4", text: "video with mp4 extension source child" },
+  { id: "with-sources-fail", pass: false, text: "video with no mp4 extension source child" },
+  { id: "with-sources-mimetype", source: "http://mochi.test:8888/simple-video-mp4", text: "video with mp4 mimetype source child" },
+  { id: "video-overlay", source: "http://mochi.test:8888/simple.mp4", text: "div overlay covering a simple video with mp4 src" }
+];
+
+function execute_video_test(test) {
+  let element = browser.contentDocument.getElementById(test.id);
+  if (element) {
+    let [x, y] = middle(element);
+    let video = chromeWin.CastingApps.getVideo(element, x, y);
+    if (video) {
+      let matchPoster = (test.poster == video.poster);
+      let matchSource = (test.source == video.source);
+      ok(matchPoster && matchSource && test.pass, test.text);
+    } else {
+      ok(!test.pass, test.text);
+    }
+  } else {
+    ok(false, "test element not found: [" + test.id + "]");
+  }
+  run_next_test();
+}
+
+let videoTest;
+while ((videoTest = videoDiscoveryTests.shift())) {
+  if (!("poster" in videoTest)) {
+    videoTest.poster = "";
+  }
+  if (!("pass" in videoTest)) {
+    videoTest.pass = true;
+  }
+
+  add_test(execute_video_test.bind(this, videoTest));
+}
+
+run_next_test();