chrome/browser/apps/platform_apps/api/media_galleries/media_galleries_watch_apitest.cc - chromium/src - Git at Google

 // Copyright 2014 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.
 //
 // MediaGalleries gallery watch API browser tests.

 #include <memory>

 #include "base/callback_helpers.h"
 #include "base/files/file_path.h"
 #include "base/files/file_path_watcher.h"
 #include "base/files/file_util.h"
 #include "base/memory/raw_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "build/chromeos_buildflags.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 #include "chrome/browser/media_galleries/media_galleries_preferences.h"
 #include "chrome/browser/media_galleries/media_galleries_test_util.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/test/browser_test.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/switches.h"
 #include "extensions/test/extension_test_message_listener.h"

 namespace {

 // Id of test extension from
 // chrome/test/data/extensions/api_test/|kTestExtensionPath|
 const char kTestExtensionId[] = "gceegfkgibmgpfopknlcgleimclbknie";
 const char kTestExtensionPath[] = "media_galleries/gallerywatch";

 // JS commands.
 const char kGetMediaFileSystemsCmd[] = "getMediaFileSystems()";
 const char kSetupWatchOnValidGalleriesCmd[] = "setupWatchOnValidGalleries()";
 const char kSetupWatchOnUnlistenedValidGalleriesCmd[] =
     "setupWatchOnUnlistenedValidGalleries()";
 const char kAddGalleryChangedListenerCmd[] = "addGalleryChangedListener()";
 const char kAddCheckingGalleryChangedListenerCmd[] =
     "addCheckingGalleryChangedListener()";
 const char kRemoveGalleryChangedListenerCmd[] =
     "removeGalleryChangedListener()";
 const char kRemoveGalleryWatchCmd[] = "removeGalleryWatch()";
 const char kSetupWatchOnInvalidGalleryCmd[] = "setupWatchOnInvalidGallery()";

 // And JS reply messages.
 const char kAddGalleryWatchOK[] = "add_gallery_watch_ok";
 const char kGetMediaFileSystemsCallbackOK[] =
     "get_media_file_systems_callback_ok";
 const char kGetMediaFileSystemsOK[] = "get_media_file_systems_ok";
 const char kAddGalleryChangedListenerOK[] = "add_gallery_changed_listener_ok";
 const char kRemoveGalleryChangedListenerOK[] =
     "remove_gallery_changed_listener_ok";
 const char kRemoveGalleryWatchOK[] = "remove_gallery_watch_ok";
 const char kOnGalleryChangedCheckingOK[] = "on_gallery_changed_checking_ok";

 // Test reply messages.
 const char kAddGalleryWatchRequestFailed[] = "add_watch_request_failed";
 const char kAddGalleryWatchRequestRuntimeError[] =
     "add_watch_request_runtime_error";
 const char kAddGalleryWatchRequestSucceeded[] = "add_watch_request_succeeded";
 const char kGalleryChangedEventReceived[] = "gallery_changed_event_received";

 }  // namespace

 ///////////////////////////////////////////////////////////////////////////////
 //                 MediaGalleriesGalleryWatchApiTest                         //
 ///////////////////////////////////////////////////////////////////////////////

 class MediaGalleriesGalleryWatchApiTest : public extensions::ExtensionApiTest {
  public:
   MediaGalleriesGalleryWatchApiTest() = default;
   MediaGalleriesGalleryWatchApiTest(const MediaGalleriesGalleryWatchApiTest&) =
       delete;
   MediaGalleriesGalleryWatchApiTest& operator=(
       const MediaGalleriesGalleryWatchApiTest&) = delete;
   ~MediaGalleriesGalleryWatchApiTest() override = default;

  protected:
   // ExtensionApiTest overrides.
   void SetUpCommandLine(base::CommandLine* command_line) override {
     extensions::ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitchASCII(
         extensions::switches::kAllowlistedExtensionID, kTestExtensionId);
   }
   void SetUpOnMainThread() override {
     extensions::ExtensionApiTest::SetUpOnMainThread();
     ensure_media_directories_exists_ =
         std::make_unique<EnsureMediaDirectoriesExists>();
     extension_ = LoadExtension(test_data_dir_.AppendASCII(kTestExtensionPath));
     GetBackgroundHostForTestExtension();
     CreateTestGallery();
     FetchMediaGalleriesList();
   }
   void TearDownOnMainThread() override {
     extension_ = nullptr;
     background_main_frame_ = nullptr;
     ensure_media_directories_exists_.reset();
     extensions::ExtensionApiTest::TearDownOnMainThread();
   }

   bool GalleryWatchesSupported() {
     return base::FilePathWatcher::RecursiveWatchAvailable();
   }

   void ExecuteCmdAndCheckReply(const std::string& js_command,
                                const std::string& ok_message) {
     ExtensionTestMessageListener listener(ok_message, false);
     background_main_frame_->ExecuteJavaScriptForTests(
         base::ASCIIToUTF16(js_command), base::NullCallback());
     EXPECT_TRUE(listener.WaitUntilSatisfied());
   }

   bool AddNewFileInTestGallery() {
     base::ScopedAllowBlockingForTesting allow_blocking;
     base::FilePath gallery_file =
         test_gallery_.GetPath().Append(FILE_PATH_LITERAL("test1.txt"));
     return base::WriteFile(gallery_file, "new content");
   }

   void SetupGalleryWatches() {
     std::string expected_result = GalleryWatchesSupported()
                                       ? kAddGalleryWatchRequestSucceeded
                                       : kAddGalleryWatchRequestFailed;

     ExtensionTestMessageListener add_gallery_watch_finished(
         expected_result, false /* no reply */);
     ExecuteCmdAndCheckReply(kSetupWatchOnValidGalleriesCmd, kAddGalleryWatchOK);
     EXPECT_TRUE(add_gallery_watch_finished.WaitUntilSatisfied());
   }

  private:
   void GetBackgroundHostForTestExtension() {
     ASSERT_TRUE(extension_);
     background_main_frame_ =
         extensions::ProcessManager::Get(browser()->profile())
             ->GetBackgroundHostForExtension(extension_->id())
             ->main_frame_host();
     ASSERT_TRUE(background_main_frame_);
   }

   void CreateTestGallery() {
     MediaGalleriesPreferences* preferences =
         g_browser_process->media_file_system_registry()->GetPreferences(
             browser()->profile());
     base::RunLoop runloop;
     preferences->EnsureInitialized(runloop.QuitClosure());
     runloop.Run();

     ASSERT_TRUE(test_gallery_.CreateUniqueTempDir());
     MediaGalleryPrefInfo gallery_info;
     ASSERT_FALSE(preferences->LookUpGalleryByPath(test_gallery_.GetPath(),
                                                   &gallery_info));
     MediaGalleryPrefId id = preferences->AddGallery(
         gallery_info.device_id, gallery_info.path,
         MediaGalleryPrefInfo::kAutoDetected, gallery_info.volume_label,
         gallery_info.vendor_name, gallery_info.model_name,
         gallery_info.total_size_in_bytes, gallery_info.last_attach_time, 0, 0,
         0);

     preferences->SetGalleryPermissionForExtension(*extension_, id, true);
   }

   void FetchMediaGalleriesList() {
     ExtensionTestMessageListener get_media_systems_finished(
         kGetMediaFileSystemsCallbackOK, false /* no reply */);
     ExecuteCmdAndCheckReply(kGetMediaFileSystemsCmd, kGetMediaFileSystemsOK);
     EXPECT_TRUE(get_media_systems_finished.WaitUntilSatisfied());
   }

   std::unique_ptr<EnsureMediaDirectoriesExists>
       ensure_media_directories_exists_;

   base::ScopedTempDir test_gallery_;

   raw_ptr<const extensions::Extension> extension_ = nullptr;

   raw_ptr<content::RenderFrameHost> background_main_frame_ = nullptr;
 };

 // TODO(crbug.com/1177103): Re-enable. Flaky on Linux and Windows.
 #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_WIN)
 #define MAYBE_BasicGalleryWatch DISABLED_BasicGalleryWatch
 #else
 #define MAYBE_BasicGalleryWatch BasicGalleryWatch
 #endif
 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        MAYBE_BasicGalleryWatch) {
   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);

   SetupGalleryWatches();

   // Modify gallery contents.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false /* no reply */);

   ASSERT_TRUE(AddNewFileInTestGallery());
   if (GalleryWatchesSupported())
     EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);

   // Remove gallery watch request.
   if (GalleryWatchesSupported())
     ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
 }

 // TODO(crbug.com/1047645): Flaky on Linux and Windows.
 #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_WIN)
 #define MAYBE_CorrectResponseOnModifyingWatchedGallery \
   DISABLED_CorrectResponseOnModifyingWatchedGallery
 #else
 #define MAYBE_CorrectResponseOnModifyingWatchedGallery \
   CorrectResponseOnModifyingWatchedGallery
 #endif
 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        MAYBE_CorrectResponseOnModifyingWatchedGallery) {
   if (!GalleryWatchesSupported())
     return;

   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddCheckingGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);
   SetupGalleryWatches();

   // Modify gallery contents; expect correct details.
   ExtensionTestMessageListener got_correct_details(kOnGalleryChangedCheckingOK,
                                                    false);
   ASSERT_TRUE(AddNewFileInTestGallery());
   EXPECT_TRUE(got_correct_details.WaitUntilSatisfied());
 }

 // Test is flaky on windows and linux: crbug.com/1150017.
 // TODO(crbug.com/1052397): Revisit once build flag switch of lacros-chrome is
 // complete.
 #if BUILDFLAG(IS_WIN) || (BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS_LACROS))
 #define MAYBE_RemoveListenerAndModifyGallery \
   DISABLED_RemoveListenerAndModifyGallery
 #else
 #define MAYBE_RemoveListenerAndModifyGallery RemoveListenerAndModifyGallery
 #endif
 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        MAYBE_RemoveListenerAndModifyGallery) {
   if (!GalleryWatchesSupported())
     return;

   // Add a gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);
   SetupGalleryWatches();

   // Modify gallery contents.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());
   EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);

   // No listener, modify gallery contents.
   ASSERT_TRUE(AddNewFileInTestGallery());

   // Remove gallery watch.
   ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        SetupGalleryWatchWithoutListeners) {
   if (!GalleryWatchesSupported())
     return;

   ExecuteCmdAndCheckReply(kSetupWatchOnUnlistenedValidGalleriesCmd,
                           kAddGalleryWatchRequestRuntimeError);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        SetupGalleryChangedListenerWithoutWatchers) {
   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);

   // Modify gallery contents. Listener should not get called because add watch
   // request was not called.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
                        SetupWatchOnInvalidGallery) {
   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);
   // Set up a invalid gallery watch.
   ExecuteCmdAndCheckReply(kSetupWatchOnInvalidGalleryCmd,
                           kAddGalleryWatchRequestFailed);
 }
	// Copyright 2014 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.
	//
	// MediaGalleries gallery watch API browser tests.

	#include <memory>

	#include "base/callback_helpers.h"
	#include "base/files/file_path.h"
	#include "base/files/file_path_watcher.h"
	#include "base/files/file_util.h"
	#include "base/memory/raw_ptr.h"
	#include "base/run_loop.h"
	#include "base/strings/utf_string_conversions.h"
	#include "base/threading/thread_restrictions.h"
	#include "build/build_config.h"
	#include "build/chromeos_buildflags.h"
	#include "chrome/browser/browser_process.h"
	#include "chrome/browser/extensions/extension_apitest.h"
	#include "chrome/browser/media_galleries/media_file_system_registry.h"
	#include "chrome/browser/media_galleries/media_galleries_preferences.h"
	#include "chrome/browser/media_galleries/media_galleries_test_util.h"
	#include "chrome/common/chrome_paths.h"
	#include "content/public/browser/render_frame_host.h"
	#include "content/public/test/browser_test.h"
	#include "extensions/browser/process_manager.h"
	#include "extensions/common/extension.h"
	#include "extensions/common/switches.h"
	#include "extensions/test/extension_test_message_listener.h"

	namespace {

	// Id of test extension from
	// chrome/test/data/extensions/api_test/\|kTestExtensionPath\|
	const char kTestExtensionId[] = "gceegfkgibmgpfopknlcgleimclbknie";
	const char kTestExtensionPath[] = "media_galleries/gallerywatch";

	// JS commands.
	const char kGetMediaFileSystemsCmd[] = "getMediaFileSystems()";
	const char kSetupWatchOnValidGalleriesCmd[] = "setupWatchOnValidGalleries()";
	const char kSetupWatchOnUnlistenedValidGalleriesCmd[] =
	"setupWatchOnUnlistenedValidGalleries()";
	const char kAddGalleryChangedListenerCmd[] = "addGalleryChangedListener()";
	const char kAddCheckingGalleryChangedListenerCmd[] =
	"addCheckingGalleryChangedListener()";
	const char kRemoveGalleryChangedListenerCmd[] =
	"removeGalleryChangedListener()";
	const char kRemoveGalleryWatchCmd[] = "removeGalleryWatch()";
	const char kSetupWatchOnInvalidGalleryCmd[] = "setupWatchOnInvalidGallery()";

	// And JS reply messages.
	const char kAddGalleryWatchOK[] = "add_gallery_watch_ok";
	const char kGetMediaFileSystemsCallbackOK[] =
	"get_media_file_systems_callback_ok";
	const char kGetMediaFileSystemsOK[] = "get_media_file_systems_ok";
	const char kAddGalleryChangedListenerOK[] = "add_gallery_changed_listener_ok";
	const char kRemoveGalleryChangedListenerOK[] =
	"remove_gallery_changed_listener_ok";
	const char kRemoveGalleryWatchOK[] = "remove_gallery_watch_ok";
	const char kOnGalleryChangedCheckingOK[] = "on_gallery_changed_checking_ok";

	// Test reply messages.
	const char kAddGalleryWatchRequestFailed[] = "add_watch_request_failed";
	const char kAddGalleryWatchRequestRuntimeError[] =
	"add_watch_request_runtime_error";
	const char kAddGalleryWatchRequestSucceeded[] = "add_watch_request_succeeded";
	const char kGalleryChangedEventReceived[] = "gallery_changed_event_received";

	} // namespace

	///////////////////////////////////////////////////////////////////////////////
	// MediaGalleriesGalleryWatchApiTest //
	///////////////////////////////////////////////////////////////////////////////

	class MediaGalleriesGalleryWatchApiTest : public extensions::ExtensionApiTest {
	public:
	MediaGalleriesGalleryWatchApiTest() = default;
	MediaGalleriesGalleryWatchApiTest(const MediaGalleriesGalleryWatchApiTest&) =
	delete;
	MediaGalleriesGalleryWatchApiTest& operator=(
	const MediaGalleriesGalleryWatchApiTest&) = delete;
	~MediaGalleriesGalleryWatchApiTest() override = default;

	protected:
	// ExtensionApiTest overrides.
	void SetUpCommandLine(base::CommandLine* command_line) override {
	extensions::ExtensionApiTest::SetUpCommandLine(command_line);
	command_line->AppendSwitchASCII(
	extensions::switches::kAllowlistedExtensionID, kTestExtensionId);
	}
	void SetUpOnMainThread() override {
	extensions::ExtensionApiTest::SetUpOnMainThread();
	ensure_media_directories_exists_ =
	std::make_unique<EnsureMediaDirectoriesExists>();
	extension_ = LoadExtension(test_data_dir_.AppendASCII(kTestExtensionPath));
	GetBackgroundHostForTestExtension();
	CreateTestGallery();
	FetchMediaGalleriesList();
	}
	void TearDownOnMainThread() override {
	extension_ = nullptr;
	background_main_frame_ = nullptr;
	ensure_media_directories_exists_.reset();
	extensions::ExtensionApiTest::TearDownOnMainThread();
	}

	bool GalleryWatchesSupported() {
	return base::FilePathWatcher::RecursiveWatchAvailable();
	}

	void ExecuteCmdAndCheckReply(const std::string& js_command,
	const std::string& ok_message) {
	ExtensionTestMessageListener listener(ok_message, false);
	background_main_frame_->ExecuteJavaScriptForTests(
	base::ASCIIToUTF16(js_command), base::NullCallback());
	EXPECT_TRUE(listener.WaitUntilSatisfied());
	}

	bool AddNewFileInTestGallery() {
	base::ScopedAllowBlockingForTesting allow_blocking;
	base::FilePath gallery_file =
	test_gallery_.GetPath().Append(FILE_PATH_LITERAL("test1.txt"));
	return base::WriteFile(gallery_file, "new content");
	}

	void SetupGalleryWatches() {
	std::string expected_result = GalleryWatchesSupported()
	? kAddGalleryWatchRequestSucceeded
	: kAddGalleryWatchRequestFailed;

	ExtensionTestMessageListener add_gallery_watch_finished(
	expected_result, false /* no reply */);
	ExecuteCmdAndCheckReply(kSetupWatchOnValidGalleriesCmd, kAddGalleryWatchOK);
	EXPECT_TRUE(add_gallery_watch_finished.WaitUntilSatisfied());
	}

	private:
	void GetBackgroundHostForTestExtension() {
	ASSERT_TRUE(extension_);
	background_main_frame_ =
	extensions::ProcessManager::Get(browser()->profile())
	->GetBackgroundHostForExtension(extension_->id())
	->main_frame_host();
	ASSERT_TRUE(background_main_frame_);
	}

	void CreateTestGallery() {
	MediaGalleriesPreferences* preferences =
	g_browser_process->media_file_system_registry()->GetPreferences(
	browser()->profile());
	base::RunLoop runloop;
	preferences->EnsureInitialized(runloop.QuitClosure());
	runloop.Run();

	ASSERT_TRUE(test_gallery_.CreateUniqueTempDir());
	MediaGalleryPrefInfo gallery_info;
	ASSERT_FALSE(preferences->LookUpGalleryByPath(test_gallery_.GetPath(),
	&gallery_info));
	MediaGalleryPrefId id = preferences->AddGallery(
	gallery_info.device_id, gallery_info.path,
	MediaGalleryPrefInfo::kAutoDetected, gallery_info.volume_label,
	gallery_info.vendor_name, gallery_info.model_name,
	gallery_info.total_size_in_bytes, gallery_info.last_attach_time, 0, 0,
	0);

	preferences->SetGalleryPermissionForExtension(*extension_, id, true);
	}

	void FetchMediaGalleriesList() {
	ExtensionTestMessageListener get_media_systems_finished(
	kGetMediaFileSystemsCallbackOK, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetMediaFileSystemsCmd, kGetMediaFileSystemsOK);
	EXPECT_TRUE(get_media_systems_finished.WaitUntilSatisfied());
	}

	std::unique_ptr<EnsureMediaDirectoriesExists>
	ensure_media_directories_exists_;

	base::ScopedTempDir test_gallery_;

	raw_ptr<const extensions::Extension> extension_ = nullptr;

	raw_ptr<content::RenderFrameHost> background_main_frame_ = nullptr;
	};

	// TODO(crbug.com/1177103): Re-enable. Flaky on Linux and Windows.
	#if BUILDFLAG(IS_LINUX) \|\| BUILDFLAG(IS_WIN)
	#define MAYBE_BasicGalleryWatch DISABLED_BasicGalleryWatch
	#else
	#define MAYBE_BasicGalleryWatch BasicGalleryWatch
	#endif
	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	MAYBE_BasicGalleryWatch) {
	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);

	SetupGalleryWatches();

	// Modify gallery contents.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);

	ASSERT_TRUE(AddNewFileInTestGallery());
	if (GalleryWatchesSupported())
	EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);

	// Remove gallery watch request.
	if (GalleryWatchesSupported())
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
	}

	// TODO(crbug.com/1047645): Flaky on Linux and Windows.
	#if BUILDFLAG(IS_LINUX) \|\| BUILDFLAG(IS_WIN)
	#define MAYBE_CorrectResponseOnModifyingWatchedGallery \
	DISABLED_CorrectResponseOnModifyingWatchedGallery
	#else
	#define MAYBE_CorrectResponseOnModifyingWatchedGallery \
	CorrectResponseOnModifyingWatchedGallery
	#endif
	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	MAYBE_CorrectResponseOnModifyingWatchedGallery) {
	if (!GalleryWatchesSupported())
	return;

	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddCheckingGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);
	SetupGalleryWatches();

	// Modify gallery contents; expect correct details.
	ExtensionTestMessageListener got_correct_details(kOnGalleryChangedCheckingOK,
	false);
	ASSERT_TRUE(AddNewFileInTestGallery());
	EXPECT_TRUE(got_correct_details.WaitUntilSatisfied());
	}

	// Test is flaky on windows and linux: crbug.com/1150017.
	// TODO(crbug.com/1052397): Revisit once build flag switch of lacros-chrome is
	// complete.
	#if BUILDFLAG(IS_WIN) \|\| (BUILDFLAG(IS_LINUX) \|\| BUILDFLAG(IS_CHROMEOS_LACROS))
	#define MAYBE_RemoveListenerAndModifyGallery \
	DISABLED_RemoveListenerAndModifyGallery
	#else
	#define MAYBE_RemoveListenerAndModifyGallery RemoveListenerAndModifyGallery
	#endif
	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	MAYBE_RemoveListenerAndModifyGallery) {
	if (!GalleryWatchesSupported())
	return;

	// Add a gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);
	SetupGalleryWatches();

	// Modify gallery contents.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());
	EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);

	// No listener, modify gallery contents.
	ASSERT_TRUE(AddNewFileInTestGallery());

	// Remove gallery watch.
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	SetupGalleryWatchWithoutListeners) {
	if (!GalleryWatchesSupported())
	return;

	ExecuteCmdAndCheckReply(kSetupWatchOnUnlistenedValidGalleriesCmd,
	kAddGalleryWatchRequestRuntimeError);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	SetupGalleryChangedListenerWithoutWatchers) {
	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);

	// Modify gallery contents. Listener should not get called because add watch
	// request was not called.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesGalleryWatchApiTest,
	SetupWatchOnInvalidGallery) {
	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);
	// Set up a invalid gallery watch.
	ExecuteCmdAndCheckReply(kSetupWatchOnInvalidGalleryCmd,
	kAddGalleryWatchRequestFailed);
	}