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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "components/network_time/network_time_tracker.h" | 5 #include "components/network_time/network_time_tracker.h" |
| 6 | 6 |
| 7 #include <memory> |
| 8 |
| 7 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
| 8 #include "base/test/simple_test_clock.h" | 10 #include "base/test/simple_test_clock.h" |
| 9 #include "base/test/simple_test_tick_clock.h" | 11 #include "base/test/simple_test_tick_clock.h" |
| 10 #include "components/network_time/network_time_pref_names.h" | 12 #include "components/network_time/network_time_pref_names.h" |
| 11 #include "components/prefs/testing_pref_service.h" | 13 #include "components/prefs/testing_pref_service.h" |
| 12 #include "testing/gtest/include/gtest/gtest.h" | 14 #include "testing/gtest/include/gtest/gtest.h" |
| 13 | 15 |
| 14 namespace network_time { | 16 namespace network_time { |
| 15 | 17 |
| 16 class NetworkTimeTrackerTest : public testing::Test { | 18 class NetworkTimeTrackerTest : public testing::Test { |
| 17 public: | 19 public: |
| 18 ~NetworkTimeTrackerTest() override {} | 20 ~NetworkTimeTrackerTest() override {} |
| 19 | 21 |
| 20 void SetUp() override { | 22 void SetUp() override { |
| 21 NetworkTimeTracker::RegisterPrefs(pref_service_.registry()); | 23 NetworkTimeTracker::RegisterPrefs(pref_service_.registry()); |
| 22 | 24 |
| 23 clock_ = new base::SimpleTestClock(); | 25 clock_ = new base::SimpleTestClock(); |
| 24 tick_clock_ = new base::SimpleTestTickClock(); | 26 tick_clock_ = new base::SimpleTestTickClock(); |
| 25 // Do this to be sure that |is_null| returns false. | 27 // Do this to be sure that |is_null| returns false. |
| 26 clock_->Advance(base::TimeDelta::FromDays(111)); | 28 clock_->Advance(base::TimeDelta::FromDays(111)); |
| 27 tick_clock_->Advance(base::TimeDelta::FromDays(222)); | 29 tick_clock_->Advance(base::TimeDelta::FromDays(222)); |
| 28 | 30 |
| 29 tracker_.reset(new NetworkTimeTracker( | 31 tracker_.reset(new NetworkTimeTracker( |
| 30 scoped_ptr<base::Clock>(clock_), | 32 std::unique_ptr<base::Clock>(clock_), |
| 31 scoped_ptr<base::TickClock>(tick_clock_), | 33 std::unique_ptr<base::TickClock>(tick_clock_), &pref_service_)); |
| 32 &pref_service_)); | |
| 33 | 34 |
| 34 // Can not be smaller than 15, it's the NowFromSystemTime() resolution. | 35 // Can not be smaller than 15, it's the NowFromSystemTime() resolution. |
| 35 resolution_ = base::TimeDelta::FromMilliseconds(17); | 36 resolution_ = base::TimeDelta::FromMilliseconds(17); |
| 36 latency_ = base::TimeDelta::FromMilliseconds(50); | 37 latency_ = base::TimeDelta::FromMilliseconds(50); |
| 37 adjustment_ = 7 * base::TimeDelta::FromMilliseconds(kTicksResolutionMs); | 38 adjustment_ = 7 * base::TimeDelta::FromMilliseconds(kTicksResolutionMs); |
| 38 } | 39 } |
| 39 | 40 |
| 40 // Replaces |tracker_| with a new object, while preserving the | 41 // Replaces |tracker_| with a new object, while preserving the |
| 41 // testing clocks. | 42 // testing clocks. |
| 42 void Reset() { | 43 void Reset() { |
| 43 base::SimpleTestClock* new_clock = new base::SimpleTestClock(); | 44 base::SimpleTestClock* new_clock = new base::SimpleTestClock(); |
| 44 new_clock->SetNow(clock_->Now()); | 45 new_clock->SetNow(clock_->Now()); |
| 45 base::SimpleTestTickClock* new_tick_clock = new base::SimpleTestTickClock(); | 46 base::SimpleTestTickClock* new_tick_clock = new base::SimpleTestTickClock(); |
| 46 new_tick_clock->SetNowTicks(tick_clock_->NowTicks()); | 47 new_tick_clock->SetNowTicks(tick_clock_->NowTicks()); |
| 47 clock_ = new_clock; | 48 clock_ = new_clock; |
| 48 tick_clock_= new_tick_clock; | 49 tick_clock_= new_tick_clock; |
| 49 tracker_.reset(new NetworkTimeTracker( | 50 tracker_.reset(new NetworkTimeTracker( |
| 50 scoped_ptr<base::Clock>(clock_), | 51 std::unique_ptr<base::Clock>(clock_), |
| 51 scoped_ptr<base::TickClock>(tick_clock_), | 52 std::unique_ptr<base::TickClock>(tick_clock_), &pref_service_)); |
| 52 &pref_service_)); | |
| 53 } | 53 } |
| 54 | 54 |
| 55 // Updates the notifier's time with the specified parameters. | 55 // Updates the notifier's time with the specified parameters. |
| 56 void UpdateNetworkTime(const base::Time& network_time, | 56 void UpdateNetworkTime(const base::Time& network_time, |
| 57 const base::TimeDelta& resolution, | 57 const base::TimeDelta& resolution, |
| 58 const base::TimeDelta& latency, | 58 const base::TimeDelta& latency, |
| 59 const base::TimeTicks& post_time) { | 59 const base::TimeTicks& post_time) { |
| 60 tracker_->UpdateNetworkTime( | 60 tracker_->UpdateNetworkTime( |
| 61 network_time, resolution, latency, post_time); | 61 network_time, resolution, latency, post_time); |
| 62 } | 62 } |
| 63 | 63 |
| 64 // Advances both the system clock and the tick clock. This should be used for | 64 // Advances both the system clock and the tick clock. This should be used for |
| 65 // the normal passage of time, i.e. when neither clock is doing anything odd. | 65 // the normal passage of time, i.e. when neither clock is doing anything odd. |
| 66 void AdvanceBoth(const base::TimeDelta& delta) { | 66 void AdvanceBoth(const base::TimeDelta& delta) { |
| 67 tick_clock_->Advance(delta); | 67 tick_clock_->Advance(delta); |
| 68 clock_->Advance(delta); | 68 clock_->Advance(delta); |
| 69 } | 69 } |
| 70 | 70 |
| 71 protected: | 71 protected: |
| 72 base::TimeDelta resolution_; | 72 base::TimeDelta resolution_; |
| 73 base::TimeDelta latency_; | 73 base::TimeDelta latency_; |
| 74 base::TimeDelta adjustment_; | 74 base::TimeDelta adjustment_; |
| 75 base::SimpleTestClock* clock_; | 75 base::SimpleTestClock* clock_; |
| 76 base::SimpleTestTickClock* tick_clock_; | 76 base::SimpleTestTickClock* tick_clock_; |
| 77 TestingPrefServiceSimple pref_service_; | 77 TestingPrefServiceSimple pref_service_; |
| 78 scoped_ptr<NetworkTimeTracker> tracker_; | 78 std::unique_ptr<NetworkTimeTracker> tracker_; |
| 79 }; | 79 }; |
| 80 | 80 |
| 81 TEST_F(NetworkTimeTrackerTest, Uninitialized) { | 81 TEST_F(NetworkTimeTrackerTest, Uninitialized) { |
| 82 base::Time network_time; | 82 base::Time network_time; |
| 83 base::TimeDelta uncertainty; | 83 base::TimeDelta uncertainty; |
| 84 EXPECT_FALSE(tracker_->GetNetworkTime(&network_time, &uncertainty)); | 84 EXPECT_FALSE(tracker_->GetNetworkTime(&network_time, &uncertainty)); |
| 85 } | 85 } |
| 86 | 86 |
| 87 TEST_F(NetworkTimeTrackerTest, LongPostingDelay) { | 87 TEST_F(NetworkTimeTrackerTest, LongPostingDelay) { |
| 88 // The request arrives at the server, which records the time. Advance the | 88 // The request arrives at the server, which records the time. Advance the |
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| 285 tick_clock_->NowTicks()); | 285 tick_clock_->NowTicks()); |
| 286 | 286 |
| 287 base::Time out_network_time; | 287 base::Time out_network_time; |
| 288 EXPECT_TRUE(tracker_->GetNetworkTime(&out_network_time, NULL)); | 288 EXPECT_TRUE(tracker_->GetNetworkTime(&out_network_time, NULL)); |
| 289 clock_->Advance(base::TimeDelta::FromDays(1)); | 289 clock_->Advance(base::TimeDelta::FromDays(1)); |
| 290 Reset(); | 290 Reset(); |
| 291 EXPECT_FALSE(tracker_->GetNetworkTime(&out_network_time, NULL)); | 291 EXPECT_FALSE(tracker_->GetNetworkTime(&out_network_time, NULL)); |
| 292 } | 292 } |
| 293 | 293 |
| 294 } // namespace network_time | 294 } // namespace network_time |
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