base/test/power_monitor_test_base.h

   1 // Copyright 2013 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 BASE_TEST_POWER_MONITOR_TEST_BASE_H_
   6 #define BASE_TEST_POWER_MONITOR_TEST_BASE_H_
   7
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/power_monitor/power_monitor.h"
  10 #include "base/power_monitor/power_monitor_source.h"
  11
  12 namespace base {
  13
  14 class PowerMonitorTestSource : public PowerMonitorSource {
  15  public:
  16   PowerMonitorTestSource();
  17   ~PowerMonitorTestSource() override;
  18
  19   void GeneratePowerStateEvent(bool on_battery_power);
  20   void GenerateSuspendEvent();
  21   void GenerateResumeEvent();
  22
  23  protected:
  24   bool IsOnBatteryPowerImpl() override;
  25
  26   bool test_on_battery_power_;
  27   MessageLoop message_loop_;
  28 };
  29
  30 class PowerMonitorTestObserver : public PowerObserver {
  31  public:
  32   PowerMonitorTestObserver();
  33   ~PowerMonitorTestObserver() override;
  34
  35   // PowerObserver callbacks.
  36   void OnPowerStateChange(bool on_battery_power) override;
  37   void OnSuspend() override;
  38   void OnResume() override;
  39
  40   // Test status counts.
  41   bool last_power_state() { return last_power_state_; }
  42   int power_state_changes() { return power_state_changes_; }
  43   int suspends() { return suspends_; }
  44   int resumes() { return resumes_; }
  45
  46  private:
  47   bool last_power_state_; // Last power state we were notified of.
  48   int power_state_changes_;  // Count of OnPowerStateChange notifications.
  49   int suspends_;  // Count of OnSuspend notifications.
  50   int resumes_;  // Count of OnResume notifications.
  51 };
  52
  53 }  // namespace base
  54
  55 #endif  // BASE_TEST_POWER_MONITOR_TEST_BASE_H_