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background_contents_service_unittest.cc

// Copyright (c) 2010 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/basictypes.h"
#include "base/command_line.h"
#include "base/scoped_ptr.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/background_contents_service.h"
#include "chrome/browser/pref_service.h"
#include "chrome/browser/tab_contents/background_contents.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/test/testing_browser_process.h"
#include "chrome/test/testing_profile.h"
#include "googleurl/src/gurl.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"

class BackgroundContentsServiceTest : public testing::Test {
 public:
  BackgroundContentsServiceTest() {}
  ~BackgroundContentsServiceTest() {}
  void SetUp() {
    command_line_.reset(new CommandLine(CommandLine::ARGUMENTS_ONLY));
    command_line_->AppendSwitch(switches::kRestoreBackgroundContents);
  }

  DictionaryValue* GetPrefs(Profile* profile) {
    return profile->GetPrefs()->GetMutableDictionary(
        prefs::kRegisteredBackgroundContents);
  }

  // Returns the stored pref URL for the passed app id.
  std::string GetPrefURLForApp(Profile* profile, const string16& appid) {
    DictionaryValue* pref = GetPrefs(profile);
    EXPECT_TRUE(pref->HasKey(UTF16ToWide(appid)));
    DictionaryValue* value;
    pref->GetDictionaryWithoutPathExpansion(UTF16ToWide(appid), &value);
    std::string url;
    value->GetString(L"url", &url);
    return url;
  }

  scoped_ptr<CommandLine> command_line_;
};

class MockBackgroundContents : public BackgroundContents {
 public:
  explicit MockBackgroundContents(Profile* profile)
      : appid_(ASCIIToUTF16("app_id")),
        profile_(profile) {
  }
  MockBackgroundContents(Profile* profile, const std::string& id)
      : appid_(ASCIIToUTF16(id)),
        profile_(profile) {
  }

  void SendOpenedNotification() {
    string16 frame_name = ASCIIToUTF16("background");
    BackgroundContentsOpenedDetails details = {
        this, frame_name, appid_ };
    NotificationService::current()->Notify(
        NotificationType::BACKGROUND_CONTENTS_OPENED,
        Source<Profile>(profile_),
        Details<BackgroundContentsOpenedDetails>(&details));
  }

  virtual const void Navigate(GURL url) {
    url_ = url;
    NotificationService::current()->Notify(
        NotificationType::BACKGROUND_CONTENTS_NAVIGATED,
        Source<Profile>(profile_),
        Details<BackgroundContents>(this));
  }
  virtual const GURL& GetURL() const { return url_; }

  void MockClose(Profile* profile) {
    NotificationService::current()->Notify(
        NotificationType::BACKGROUND_CONTENTS_CLOSED,
        Source<Profile>(profile),
        Details<BackgroundContents>(this));
    delete this;
  }

  ~MockBackgroundContents() {
    NotificationService::current()->Notify(
        NotificationType::BACKGROUND_CONTENTS_DELETED,
        Source<Profile>(profile_),
        Details<BackgroundContents>(this));
  }

  const string16& appid() { return appid_; }

 private:
  GURL url_;

  // The ID of our parent application
  string16 appid_;

  // Parent profile
  Profile* profile_;
};

TEST_F(BackgroundContentsServiceTest, Create) {
  // Check for creation and leaks.
  TestingProfile profile;
  BackgroundContentsService service(&profile, command_line_.get());
}

TEST_F(BackgroundContentsServiceTest, BackgroundContentsCreateDestroy) {
  TestingProfile profile;
  BackgroundContentsService service(&profile, command_line_.get());
  // TODO(atwilson): Enable the refcount part of the test once we fix the
  // APP_TERMINATING notification to be sent at the proper time.
  // (http://crbug.com/45275).
  //
  //  TestingBrowserProcess* process =
  //      static_cast<TestingBrowserProcess*>(g_browser_process);
  // unsigned int starting_ref_count = process->module_ref_count();
  MockBackgroundContents* contents = new MockBackgroundContents(&profile);
  EXPECT_FALSE(service.IsTracked(contents));
  contents->SendOpenedNotification();
  // EXPECT_EQ(starting_ref_count+1, process->module_ref_count());
  EXPECT_TRUE(service.IsTracked(contents));
  delete contents;
  // EXPECT_EQ(starting_ref_count, process->module_ref_count());
  EXPECT_FALSE(service.IsTracked(contents));
}

TEST_F(BackgroundContentsServiceTest, BackgroundContentsUrlAdded) {
  TestingProfile profile;
  GetPrefs(&profile)->Clear();
  BackgroundContentsService service(&profile, command_line_.get());
  GURL orig_url;
  GURL url("http://a/");
  GURL url2("http://a/");
  {
    scoped_ptr<MockBackgroundContents> contents(
        new MockBackgroundContents(&profile));
    EXPECT_EQ(0U, GetPrefs(&profile)->size());
    contents->SendOpenedNotification();

    contents->Navigate(url);
    EXPECT_EQ(1U, GetPrefs(&profile)->size());
    EXPECT_EQ(url.spec(), GetPrefURLForApp(&profile, contents->appid()));

    // Navigate the contents to a new url, should not change url.
    contents->Navigate(url2);
    EXPECT_EQ(1U, GetPrefs(&profile)->size());
    EXPECT_EQ(url.spec(), GetPrefURLForApp(&profile, contents->appid()));

  }
  // Contents are deleted, url should persist.
  EXPECT_EQ(1U, GetPrefs(&profile)->size());
}

TEST_F(BackgroundContentsServiceTest, BackgroundContentsUrlAddedAndClosed) {
  TestingProfile profile;
  GetPrefs(&profile)->Clear();
  BackgroundContentsService service(&profile, command_line_.get());
  GURL url("http://a/");
  MockBackgroundContents* contents = new MockBackgroundContents(&profile);
  EXPECT_EQ(0U, GetPrefs(&profile)->size());
  contents->SendOpenedNotification();
  contents->Navigate(url);
  EXPECT_EQ(1U, GetPrefs(&profile)->size());
  EXPECT_EQ(url.spec(), GetPrefURLForApp(&profile, contents->appid()));

  // Fake a window closed by script.
  contents->MockClose(&profile);
  EXPECT_EQ(0U, GetPrefs(&profile)->size());
}

// Test what happens if a BackgroundContents shuts down (say, due to a renderer
// crash) then is restarted. Should not persist URL twice.
TEST_F(BackgroundContentsServiceTest, RestartBackgroundContents) {
  TestingProfile profile;
  GetPrefs(&profile)->Clear();
  BackgroundContentsService service(&profile, command_line_.get());
  GURL url("http://a/");
  {
    scoped_ptr<MockBackgroundContents> contents(new MockBackgroundContents(
        &profile, "appid"));
    contents->SendOpenedNotification();
    contents->Navigate(url);
    EXPECT_EQ(1U, GetPrefs(&profile)->size());
    EXPECT_EQ(url.spec(), GetPrefURLForApp(&profile, contents->appid()));
  }
  // Contents deleted, url should be persisted.
  EXPECT_EQ(1U, GetPrefs(&profile)->size());

  {
    // Reopen the BackgroundContents to the same URL, we should not register the
    // URL again.
    scoped_ptr<MockBackgroundContents> contents(new MockBackgroundContents(
        &profile, "appid"));
    contents->SendOpenedNotification();
    contents->Navigate(url);
    EXPECT_EQ(1U, GetPrefs(&profile)->size());
  }
}

// Ensures that BackgroundContentsService properly tracks the association
// between a BackgroundContents and its parent extension, including
// unregistering the BC when the extension is uninstalled.
TEST_F(BackgroundContentsServiceTest, TestApplicationIDLinkage) {
  TestingProfile profile;
  BackgroundContentsService service(&profile, command_line_.get());
  GetPrefs(&profile)->Clear();

  EXPECT_EQ(NULL, service.GetAppBackgroundContents(ASCIIToUTF16("appid")));
  MockBackgroundContents* contents = new MockBackgroundContents(&profile,
                                                                "appid");
  scoped_ptr<MockBackgroundContents> contents2(
      new MockBackgroundContents(&profile, "appid2"));
  contents->SendOpenedNotification();
  EXPECT_EQ(contents, service.GetAppBackgroundContents(contents->appid()));
  contents2->SendOpenedNotification();
  EXPECT_EQ(contents2.get(), service.GetAppBackgroundContents(
      contents2->appid()));
  EXPECT_EQ(0U, GetPrefs(&profile)->size());

  // Navigate the contents, then make sure the one associated with the extension
  // is unregistered.
  GURL url("http://a/");
  GURL url2("http://b/");
  contents->Navigate(url);
  EXPECT_EQ(1U, GetPrefs(&profile)->size());
  contents2->Navigate(url2);
  EXPECT_EQ(2U, GetPrefs(&profile)->size());
  service.ShutdownAssociatedBackgroundContents(ASCIIToUTF16("appid"));
  EXPECT_FALSE(service.IsTracked(contents));
  EXPECT_EQ(NULL, service.GetAppBackgroundContents(ASCIIToUTF16("appid")));
  EXPECT_EQ(1U, GetPrefs(&profile)->size());
  EXPECT_EQ(url2.spec(), GetPrefURLForApp(&profile, contents2->appid()));
}

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