pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/tests/browser/robocop/testVideoControls.js

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+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+/* 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";
+
+var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/SimpleServiceDiscovery.jsm");
+
+// The chrome window
+var chromeWin;
+
+// Track the <browser> where the tests are happening
+var browser;
+
+// The document of the video_controls web content
+var contentDocument;
+
+// The <video> we will be testing
+var video;
+
+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));
+  });
+
+  // Load our test web page with <video> elements
+  let url = "http://mochi.test:8888/tests/robocop/video_controls.html";
+  browser = BrowserApp.addTab(url, { selected: true, parentId: BrowserApp.selectedTab.id }).browser;
+  browser.addEventListener("load", function startTests(event) {
+    browser.removeEventListener("load", startTests, true);
+    contentDocument = browser.contentDocument;
+
+    video = contentDocument.getElementById("video");
+    ok(video, "Found the video element");
+
+    Services.tm.mainThread.dispatch(run_next_test, Ci.nsIThread.DISPATCH_NORMAL);
+  }, true);
+});
+
+add_test(function test_webm() {
+  // Load the test video
+  video.src = "http://mochi.test:8888/tests/robocop/video-pattern.webm";
+
+  Services.tm.mainThread.dispatch(testLoad, Ci.nsIThread.DISPATCH_NORMAL);
+});
+
+add_test(function test_ogg() {
+  // Load the test video
+  video.src = "http://mochi.test:8888/tests/robocop/video-pattern.ogg";
+
+  Services.tm.mainThread.dispatch(testLoad, Ci.nsIThread.DISPATCH_NORMAL);
+});
+
+function getButtonByAttribute(aName, aValue) {
+  let domUtil = Cc["@mozilla.org/inspector/dom-utils;1"].getService(Ci.inIDOMUtils);
+  let kids = domUtil.getChildrenForNode(video, true);
+  let videocontrols = kids[1];
+  return contentDocument.getAnonymousElementByAttribute(videocontrols, aName, aValue);
+}
+
+function getPixelColor(aCanvas, aX, aY) {
+  let cx = aCanvas.getContext("2d");
+  let pixel = cx.getImageData(aX, aY, 1, 1);
+  return {
+    r: pixel.data[0],
+    g: pixel.data[1],
+    b: pixel.data[2],
+    a: pixel.data[3]
+  };
+}
+
+function testLoad() {
+  // The video is not auto-play, so it starts paused
+  let playButton = getButtonByAttribute("class", "playButton");
+  ok(playButton.getAttribute("paused") == "true", "Play button is paused");
+
+  // Let's start playing it
+  video.play();
+  video.addEventListener("play", testPlay, false);
+}
+
+function testPlay(aEvent) {
+  video.removeEventListener("play", testPlay, false);
+  let playButton = getButtonByAttribute("class", "playButton");
+  ok(playButton.hasAttribute("paused") == false, "Play button is not paused");
+
+  // Let the video play for 2 seconds, then pause it
+  chromeWin.setTimeout(function() {
+    video.pause();
+    video.addEventListener("pause", testPause, false);
+  }, 2000);
+}
+
+function testPause(aEvent) {
+  video.removeEventListener("pause", testPause, false);
+
+  // If we got here, the play button should be paused
+  let playButton = getButtonByAttribute("class", "playButton");
+  ok(playButton.getAttribute("paused") == "true", "Play button is paused again");
+
+  // Let's grab an image of the frame and test it
+  let width = 640;
+  let height = 480;
+  let canvas = contentDocument.getElementById("canvas");
+  canvas.width = width;
+  canvas.height = height;
+  canvas.getContext("2d").drawImage(video, 0, 0, width, height);
+
+  // Let's grab some pixel colors to verify we actually displayed a video.
+  // For some reason the canvas copy of the frame does not recreate the colors
+  // exactly for some devices. To keep things passing on automation and local
+  // runs, we fudge it.
+
+  // The purpose of this code is not to test drawImage, but whether a video
+  // frame was displayed.
+  const MAX_COLOR = 235; // ideally, 255
+  const MIN_COLOR = 20; // ideally, 0
+
+  let bar1 = getPixelColor(canvas, 45, 10);
+  do_print("Color at (45, 10): " + JSON.stringify(bar1));
+  ok(bar1.r >= MAX_COLOR && bar1.g >= MAX_COLOR && bar1.b >= MAX_COLOR, "Bar 1 is white");
+
+  let bar2 = getPixelColor(canvas, 135, 10);
+  do_print("Color at (135, 10): " + JSON.stringify(bar2));
+  ok(bar2.r >= MAX_COLOR && bar2.g >= MAX_COLOR && bar2.b <= MIN_COLOR, "Bar 2 is yellow");
+
+  let bar3 = getPixelColor(canvas, 225, 10);
+  do_print("Color at (225, 10): " + JSON.stringify(bar3));
+  ok(bar3.r <= MIN_COLOR && bar3.g >= MAX_COLOR && bar3.b >= MAX_COLOR, "Bar 3 is Cyan");
+
+  let bar4 = getPixelColor(canvas, 315, 10);
+  do_print("Color at (315, 10): " + JSON.stringify(bar4));
+  ok(bar4.r <= MIN_COLOR && bar4.g >= MAX_COLOR && bar4.b <= MIN_COLOR, "Bar 4 is Green");
+
+  let bar5 = getPixelColor(canvas, 405, 10);
+  do_print("Color at (405, 10): " + JSON.stringify(bar5));
+  ok(bar5.r >= MAX_COLOR && bar5.g <= MIN_COLOR && bar5.b >= MAX_COLOR, "Bar 5 is Purple");
+
+  let bar6 = getPixelColor(canvas, 495, 10);
+  do_print("Color at (495, 10): " + JSON.stringify(bar6));
+  ok(bar6.r >= MAX_COLOR && bar6.g <= MIN_COLOR && bar6.b <= MIN_COLOR, "Bar 6 is Red");
+
+  let bar7 = getPixelColor(canvas, 585, 10);
+  do_print("Color at (585, 10): " + JSON.stringify(bar7));
+  ok(bar7.r <= MIN_COLOR && bar7.g <= MIN_COLOR && bar7.b >= MAX_COLOR, "Bar 7 is Blue");
+
+  run_next_test();
+}
+
+run_next_test();