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/command_line.h"
   6 #include "base/strings/utf_string_conversions.h"
   7 #include "build/build_config.h"
   8 #include "chrome/browser/ui/browser.h"
   9 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  10 #include "chrome/test/base/in_process_browser_test.h"
  11 #include "chrome/test/base/ui_test_utils.h"
  12 #include "content/public/common/content_switches.h"
  13 #include "content/public/test/browser_test_utils.h"
  14 #include "media/base/test_data_util.h"
  15
  16 class DeferredMediaBrowserTest : public InProcessBrowserTest {
  17  public:
  18 #if defined(OS_ANDROID)
  19   void SetUpCommandLine(base::CommandLine* command_line) override {
  20     command_line->AppendSwitch(
  21         switches::kDisableGestureRequirementForMediaPlayback);
  22   }
  23 #endif
  24 };
  25
  26 IN_PROC_BROWSER_TEST_F(DeferredMediaBrowserTest, BackgroundMediaIsDeferred) {
  27   // Navigate to a video file, which would autoplay in the foreground, but won't
  28   // in the background due to deferred media loading for hidden tabs.
  29   ui_test_utils::NavigateToURLWithDisposition(
  30       browser(), content::GetFileUrlWithQuery(
  31                      media::GetTestDataFilePath("bear-640x360.webm"), ""),
  32       NEW_BACKGROUND_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
  33
  34   ASSERT_EQ(2, browser()->tab_strip_model()->count());
  35   content::WebContents* background_contents =
  36       browser()->tab_strip_model()->GetWebContentsAt(1);
  37   EXPECT_TRUE(
  38       content::WaitForRenderFrameReady(background_contents->GetMainFrame()));
  39   EXPECT_NE(background_contents,
  40             browser()->tab_strip_model()->GetActiveWebContents());
  41
  42   // If autoplay for background tabs isn't deferred the play event listener will
  43   // be attached too late to catch the event, and subsequently the test will hit
  44   // the ended event before the play event.
  45   EXPECT_TRUE(
  46       content::ExecuteScript(background_contents,
  47                              "var video = document.querySelector('video');"
  48                              "video.addEventListener('ended', function(event) {"
  49                              "  document.title = 'ended';"
  50                              "}, false);"
  51                              "video.addEventListener('play', function(event) {"
  52                              "  document.title = 'playing';"
  53                              "}, false);"));
  54
  55   // Make the background tab w/ our video the active tab.
  56   browser()->tab_strip_model()->SelectNextTab();
  57   EXPECT_EQ(background_contents,
  58             browser()->tab_strip_model()->GetActiveWebContents());
  59
  60   // If everything worked, we should see "playing" and not "ended".
  61   const base::string16 playing_str = base::UTF8ToUTF16("playing");
  62   const base::string16 ended_str = base::UTF8ToUTF16("ended");
  63   content::TitleWatcher watcher(background_contents, playing_str);
  64   watcher.AlsoWaitForTitle(ended_str);
  65   EXPECT_EQ(playing_str, watcher.WaitAndGetTitle());
  66 }