chromeos/dbus/fake_update_engine_client.h

   1 // Copyright (c) 2012 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 CHROMEOS_DBUS_FAKE_UPDATE_ENGINE_CLIENT_H_
   6 #define CHROMEOS_DBUS_FAKE_UPDATE_ENGINE_CLIENT_H_
   7
   8 #include <queue>
   9 #include <string>
  10
  11 #include "chromeos/dbus/update_engine_client.h"
  12
  13 namespace chromeos {
  14
  15 // A fake implementation of UpdateEngineClient. The user of this class can
  16 // use set_update_engine_client_status() to set a fake last Status and
  17 // GetLastStatus() returns the fake with no modification. Other methods do
  18 // nothing.
  19 class FakeUpdateEngineClient : public UpdateEngineClient {
  20  public:
  21   FakeUpdateEngineClient();
  22   virtual ~FakeUpdateEngineClient();
  23
  24   // UpdateEngineClient overrides
  25   virtual void Init(dbus::Bus* bus) OVERRIDE;
  26   virtual void AddObserver(Observer* observer) OVERRIDE;
  27   virtual void RemoveObserver(Observer* observer) OVERRIDE;
  28   virtual bool HasObserver(Observer* observer) OVERRIDE;
  29   virtual void RequestUpdateCheck(const UpdateCheckCallback& callback) OVERRIDE;
  30   virtual void RebootAfterUpdate() OVERRIDE;
  31   virtual void Rollback() OVERRIDE;
  32   virtual void CanRollbackCheck(
  33       const RollbackCheckCallback& callback) OVERRIDE;
  34   virtual Status GetLastStatus() OVERRIDE;
  35   virtual void SetChannel(const std::string& target_channel,
  36                           bool is_powerwash_allowed) OVERRIDE;
  37   virtual void GetChannel(bool get_current_channel,
  38                           const GetChannelCallback& callback) OVERRIDE;
  39
  40   // Pushes UpdateEngineClient::Status in the queue to test changing status.
  41   // GetLastStatus() returns the status set by this method in FIFO order.
  42   // See set_default_status().
  43   void PushLastStatus(const UpdateEngineClient::Status& status) {
  44     status_queue_.push(status);
  45   }
  46
  47   // Sends status change notification.
  48   void NotifyObserversThatStatusChanged(
  49       const UpdateEngineClient::Status& status);
  50
  51   // Sets the default UpdateEngineClient::Status. GetLastStatus() returns the
  52   // value set here if |status_queue_| is empty.
  53   void set_default_status(const UpdateEngineClient::Status& status);
  54
  55   // Sets a value returned by RequestUpdateCheck().
  56   void set_update_check_result(
  57       const UpdateEngineClient::UpdateCheckResult& result);
  58
  59   void set_can_rollback_check_result(bool result) {
  60       can_rollback_stub_result_ = result;
  61   }
  62
  63   // Returns how many times RebootAfterUpdate() is called.
  64   int reboot_after_update_call_count() const {
  65       return reboot_after_update_call_count_;
  66   }
  67
  68   // Returns how many times Rollback() is called.
  69   int rollback_call_count() const { return rollback_call_count_; }
  70
  71   // Returns how many times Rollback() is called.
  72   int can_rollback_call_count() const { return can_rollback_call_count_; }
  73
  74  private:
  75   ObserverList<Observer> observers_;
  76   std::queue<UpdateEngineClient::Status> status_queue_;
  77   UpdateEngineClient::Status default_status_;
  78   UpdateEngineClient::UpdateCheckResult update_check_result_;
  79   bool can_rollback_stub_result_;
  80   int reboot_after_update_call_count_;
  81   int rollback_call_count_;
  82   int can_rollback_call_count_;
  83 };
  84
  85 }  // namespace chromeos
  86
  87 #endif  // CHROMEOS_DBUS_FAKE_UPDATE_ENGINE_CLIENT_H_