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      1 // Copyright (c) 2011 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 #ifndef CHROME_BROWSER_UI_COCOA_BROWSER_TEST_HELPER_H_
      6 #define CHROME_BROWSER_UI_COCOA_BROWSER_TEST_HELPER_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/ui/browser.h"
     10 #include "chrome/test/testing_profile.h"
     11 #include "content/browser/browser_thread.h"
     12 
     13 // Base class which contains a valid Browser*.  Lots of boilerplate to
     14 // recycle between unit test classes.
     15 //
     16 // This class creates fake UI, file, and IO threads because many objects that
     17 // are attached to the TestingProfile (and other objects) have traits that limit
     18 // their destruction to certain threads. For example, the net::URLRequestContext
     19 // can only be deleted on the IO thread; without this fake IO thread, the object
     20 // would never be deleted and would report as a leak under Valgrind. Note that
     21 // these are fake threads and they all share the same MessageLoop.
     22 //
     23 // TODO(jrg): move up a level (chrome/browser/ui/cocoa -->
     24 // chrome/browser), and use in non-Mac unit tests such as
     25 // back_forward_menu_model_unittest.cc,
     26 // navigation_controller_unittest.cc, ..
     27 class BrowserTestHelper {
     28  public:
     29   BrowserTestHelper();
     30   virtual ~BrowserTestHelper();
     31 
     32   virtual TestingProfile* profile() const;
     33   Browser* browser() const { return browser_.get(); }
     34 
     35   // Creates the browser window. To close this window call |CloseBrowserWindow|.
     36   // Do NOT call close directly on the window.
     37   BrowserWindow* CreateBrowserWindow();
     38 
     39   // Closes the window for this browser. This must only be called after
     40   // CreateBrowserWindow().
     41   void CloseBrowserWindow();
     42 
     43  private:
     44   scoped_ptr<TestingProfile> profile_;
     45   scoped_ptr<Browser> browser_;
     46   MessageLoopForUI message_loop_;
     47   BrowserThread ui_thread_;
     48   scoped_ptr<BrowserThread> file_thread_;
     49   scoped_ptr<BrowserThread> io_thread_;
     50 };
     51 
     52 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_TEST_HELPER_H_
     53