src/ash/system/chromeos/power/power_status_unittest.cc

   1 // Copyright (c) 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 #include "ash/system/chromeos/power/power_status.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "chromeos/dbus/dbus_thread_manager.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "third_party/cros_system_api/dbus/service_constants.h"
  12
  13 namespace ash {
  14 namespace {
  15
  16 class TestObserver : public PowerStatus::Observer {
  17  public:
  18   TestObserver() : power_changed_count_(0) {}
  19   virtual ~TestObserver() {}
  20
  21   int power_changed_count() const { return power_changed_count_; }
  22
  23   // PowerStatus::Observer overrides:
  24   virtual void OnPowerStatusChanged() OVERRIDE { ++power_changed_count_; }
  25
  26  private:
  27   int power_changed_count_;
  28
  29   DISALLOW_COPY_AND_ASSIGN(TestObserver);
  30 };
  31
  32 }  // namespace
  33
  34 class PowerStatusTest : public testing::Test {
  35  public:
  36   PowerStatusTest() : power_status_(NULL) {}
  37   virtual ~PowerStatusTest() {}
  38
  39   virtual void SetUp() OVERRIDE {
  40     chromeos::DBusThreadManager::Initialize();
  41     PowerStatus::Initialize();
  42     power_status_ = PowerStatus::Get();
  43     test_observer_.reset(new TestObserver);
  44     power_status_->AddObserver(test_observer_.get());
  45   }
  46
  47   virtual void TearDown() OVERRIDE {
  48     power_status_->RemoveObserver(test_observer_.get());
  49     test_observer_.reset();
  50     PowerStatus::Shutdown();
  51     chromeos::DBusThreadManager::Shutdown();
  52   }
  53
  54  protected:
  55   base::MessageLoopForUI message_loop_;
  56   PowerStatus* power_status_;  // Not owned.
  57   scoped_ptr<TestObserver> test_observer_;
  58
  59  private:
  60   DISALLOW_COPY_AND_ASSIGN(PowerStatusTest);
  61 };
  62
  63 TEST_F(PowerStatusTest, InitializeAndUpdate) {
  64   // Test that the initial power supply state should be acquired after
  65   // PowerStatus is instantiated. This depends on
  66   // PowerManagerClientStubImpl, which responds to power status update
  67   // requests, pretends there is a battery present, and generates some valid
  68   // power supply status data.
  69   message_loop_.RunUntilIdle();
  70   EXPECT_EQ(1, test_observer_->power_changed_count());
  71
  72   // Test RequestUpdate, test_obsever_ should be notified for power suuply
  73   // status change.
  74   power_status_->RequestStatusUpdate();
  75   message_loop_.RunUntilIdle();
  76   EXPECT_EQ(2, test_observer_->power_changed_count());
  77 }
  78
  79 TEST_F(PowerStatusTest, ShouldDisplayBatteryTime) {
  80   EXPECT_FALSE(PowerStatus::ShouldDisplayBatteryTime(
  81       base::TimeDelta::FromSeconds(-1)));
  82   EXPECT_FALSE(PowerStatus::ShouldDisplayBatteryTime(
  83       base::TimeDelta::FromSeconds(0)));
  84   EXPECT_FALSE(PowerStatus::ShouldDisplayBatteryTime(
  85       base::TimeDelta::FromSeconds(59)));
  86   EXPECT_TRUE(PowerStatus::ShouldDisplayBatteryTime(
  87       base::TimeDelta::FromSeconds(60)));
  88   EXPECT_TRUE(PowerStatus::ShouldDisplayBatteryTime(
  89       base::TimeDelta::FromSeconds(600)));
  90   EXPECT_TRUE(PowerStatus::ShouldDisplayBatteryTime(
  91       base::TimeDelta::FromSeconds(3600)));
  92   EXPECT_TRUE(PowerStatus::ShouldDisplayBatteryTime(
  93       base::TimeDelta::FromSeconds(
  94           PowerStatus::kMaxBatteryTimeToDisplaySec)));
  95   EXPECT_FALSE(PowerStatus::ShouldDisplayBatteryTime(
  96       base::TimeDelta::FromSeconds(
  97           PowerStatus::kMaxBatteryTimeToDisplaySec + 1)));
  98 }
  99
 100 TEST_F(PowerStatusTest, SplitTimeIntoHoursAndMinutes) {
 101   int hours = 0, minutes = 0;
 102   PowerStatus::SplitTimeIntoHoursAndMinutes(
 103       base::TimeDelta::FromSeconds(0), &hours, &minutes);
 104   EXPECT_EQ(0, hours);
 105   EXPECT_EQ(0, minutes);
 106
 107   PowerStatus::SplitTimeIntoHoursAndMinutes(
 108       base::TimeDelta::FromSeconds(60), &hours, &minutes);
 109   EXPECT_EQ(0, hours);
 110   EXPECT_EQ(1, minutes);
 111
 112   PowerStatus::SplitTimeIntoHoursAndMinutes(
 113       base::TimeDelta::FromSeconds(3600), &hours, &minutes);
 114   EXPECT_EQ(1, hours);
 115   EXPECT_EQ(0, minutes);
 116
 117   PowerStatus::SplitTimeIntoHoursAndMinutes(
 118       base::TimeDelta::FromSeconds(3600 + 60), &hours, &minutes);
 119   EXPECT_EQ(1, hours);
 120   EXPECT_EQ(1, minutes);
 121
 122   PowerStatus::SplitTimeIntoHoursAndMinutes(
 123       base::TimeDelta::FromSeconds(7 * 3600 + 23 * 60), &hours, &minutes);
 124   EXPECT_EQ(7, hours);
 125   EXPECT_EQ(23, minutes);
 126
 127   // Check that minutes are rounded.
 128   PowerStatus::SplitTimeIntoHoursAndMinutes(
 129       base::TimeDelta::FromSeconds(2 * 3600 + 3 * 60 + 30), &hours, &minutes);
 130   EXPECT_EQ(2, hours);
 131   EXPECT_EQ(4, minutes);
 132
 133   PowerStatus::SplitTimeIntoHoursAndMinutes(
 134       base::TimeDelta::FromSeconds(2 * 3600 + 3 * 60 + 29), &hours, &minutes);
 135   EXPECT_EQ(2, hours);
 136   EXPECT_EQ(3, minutes);
 137
 138   // Check that times close to hour boundaries aren't incorrectly rounded such
 139   // that they display 60 minutes: http://crbug.com/368261
 140   PowerStatus::SplitTimeIntoHoursAndMinutes(
 141       base::TimeDelta::FromSecondsD(3599.9), &hours, &minutes);
 142   EXPECT_EQ(1, hours);
 143   EXPECT_EQ(0, minutes);
 144
 145   PowerStatus::SplitTimeIntoHoursAndMinutes(
 146       base::TimeDelta::FromSecondsD(3600.1), &hours, &minutes);
 147   EXPECT_EQ(1, hours);
 148   EXPECT_EQ(0, minutes);
 149 }
 150
 151 }  // namespace ash