chrome/browser/media/defer_background_media_browsertest.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/strings/utf_string_conversions.h"
   6 #include "build/build_config.h"
   7 #include "chrome/browser/ui/browser.h"
   8 #include "chrome/browser/ui/tabs/tab_strip_model.h"
   9 #include "chrome/test/base/in_process_browser_test.h"
  10 #include "chrome/test/base/ui_test_utils.h"
  11 #include "content/public/test/browser_test_utils.h"
  12 #include "media/base/test_data_util.h"
  13
  14 // TODO(dalecurtis): Android does not correctly defer media today, fix and
  15 // enable this test (needs disable of user gesture).  http://crbug.com/522157
  16 #if !defined(OS_ANDROID)
  17 typedef InProcessBrowserTest MediaBrowserTest;
  18
  19 IN_PROC_BROWSER_TEST_F(MediaBrowserTest, BackgroundMediaIsDeferred) {
  20   // Navigate to a video file, which would autoplay in the foreground, but won't
  21   // in the background due to deferred media loading for hidden tabs.
  22   ui_test_utils::NavigateToURLWithDisposition(
  23       browser(), content::GetFileUrlWithQuery(
  24                      media::GetTestDataFilePath("bear-640x360.webm"), ""),
  25       NEW_BACKGROUND_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
  26
  27   ASSERT_EQ(2, browser()->tab_strip_model()->count());
  28   content::WebContents* background_contents =
  29       browser()->tab_strip_model()->GetWebContentsAt(1);
  30   EXPECT_TRUE(
  31       content::WaitForRenderFrameReady(background_contents->GetMainFrame()));
  32   EXPECT_NE(background_contents,
  33             browser()->tab_strip_model()->GetActiveWebContents());
  34
  35   // If autoplay for background tabs isn't deferred the play event listener will
  36   // be attached too late to catch the event, and subsequently the test will hit
  37   // the ended event before the play event.
  38   EXPECT_TRUE(
  39       content::ExecuteScript(background_contents,
  40                              "var video = document.querySelector('video');"
  41                              "video.addEventListener('ended', function(event) {"
  42                              "  document.title = 'ended';"
  43                              "}, false);"
  44                              "video.addEventListener('play', function(event) {"
  45                              "  document.title = 'playing';"
  46                              "}, false);"));
  47
  48   // Make the background tab w/ our video the active tab.
  49   browser()->tab_strip_model()->SelectNextTab();
  50   EXPECT_EQ(background_contents,
  51             browser()->tab_strip_model()->GetActiveWebContents());
  52
  53   // If everything worked, we should see "playing" and not "ended".
  54   const base::string16 playing_str = base::UTF8ToUTF16("playing");
  55   const base::string16 ended_str = base::UTF8ToUTF16("ended");
  56   content::TitleWatcher watcher(background_contents, playing_str);
  57   watcher.AlsoWaitForTitle(ended_str);
  58   EXPECT_EQ(playing_str, watcher.WaitAndGetTitle());
  59 }
  60 #endif  // !defined(OS_ANDROID)