Indicate in the Window menu which Chrome window has an active sound playing

chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/fullscreen.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
 #import "chrome/browser/ui/cocoa/browser_window_cocoa.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #include "chrome/browser/ui/cocoa/cocoa_profile_test.h"
+#include "chrome/grit/generated_resources.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/notification_details.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #import "third_party/ocmock/OCMock/OCMock.h"
 #import "third_party/ocmock/gtest_support.h"
+#include "ui/base/l10n/l10n_util_mac.h"
 
 // Main test class.
 class BrowserWindowCocoaTest : public CocoaProfileTest {
   void SetUp() override {
     CocoaProfileTest::SetUp();
     ASSERT_TRUE(browser());
 
     controller_ = [[BrowserWindowController alloc] initWithBrowser:browser()
                                                      takeOwnership:NO];
   }
@@ skipping 12 matching lines @@
       new BrowserWindowCocoa(browser(), controller_));
 
   bool before = bwc->IsBookmarkBarVisible();
   chrome::ToggleBookmarkBarWhenVisible(profile());
   EXPECT_NE(before, bwc->IsBookmarkBarVisible());
 
   chrome::ToggleBookmarkBarWhenVisible(profile());
   EXPECT_EQ(before, bwc->IsBookmarkBarVisible());
 }
 
+TEST_F(BrowserWindowCocoaTest, TestWindowTitle) {
+  scoped_ptr<BrowserWindowCocoa> bwc(
+      new BrowserWindowCocoa(browser(), controller_));
+  NSString* playingEmoji = l10n_util::GetNSString(IDS_WINDOW_AUDIO_PLAYING_MAC);

[Robert Sesek, 2015/10/28 18:45:57]

naming: use under_scores (see other test file for rationale).

+  NSString* muteEmoji = l10n_util::GetNSString(IDS_WINDOW_AUDIO_MUTE_MAC);
+  EXPECT_EQ([bwc->GetWindowTitle() rangeOfString:playingEmoji].location,
+            NSNotFound);
+  EXPECT_EQ([bwc->GetWindowTitle() rangeOfString:muteEmoji].location,
+            NSNotFound);
+  bwc->UpdateMediaState(TAB_MEDIA_STATE_AUDIO_PLAYING);
+  EXPECT_NE([bwc->GetWindowTitle() rangeOfString:playingEmoji].location,
+            NSNotFound);
+  bwc->UpdateMediaState(TAB_MEDIA_STATE_AUDIO_MUTING);
+  EXPECT_NE([bwc->GetWindowTitle() rangeOfString:muteEmoji].location,
+            NSNotFound);
+  bwc->UpdateMediaState(TAB_MEDIA_STATE_NONE);
+  EXPECT_EQ([bwc->GetWindowTitle() rangeOfString:playingEmoji].location,
+            NSNotFound);
+  EXPECT_EQ([bwc->GetWindowTitle() rangeOfString:muteEmoji].location,
+            NSNotFound);
+}
+
 // Test that IsMaximized() returns false when the browser window goes from
 // maximized to minimized state - http://crbug/452976.
 TEST_F(BrowserWindowCocoaTest, TestMinimizeState) {
   scoped_ptr<BrowserWindowCocoa> bwc(
       new BrowserWindowCocoa(browser(), controller_));
 
   EXPECT_FALSE(bwc->IsMinimized());
   bwc->Maximize();
   EXPECT_TRUE(bwc->IsMaximized());
   EXPECT_FALSE(bwc->IsMinimized());
@@ skipping 117 matching lines @@
   [[[window_ stub] andReturn:nil] delegate];
   [[[controller_ stub] andReturn:window_] window];
   [[window_ expect] orderOut:nil];
   [[window_ expect] close];
   CreateAndCloseBrowserWindow();
   EXPECT_OCMOCK_VERIFY(controller_);
   EXPECT_OCMOCK_VERIFY(window_);
 }
 
 // TODO(???): test other methods of BrowserWindowCocoa