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| 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 #include "net/quic/quic_chromium_alarm_factory.h" |
| 6 |
| 7 #include "net/quic/test_tools/mock_clock.h" |
| 8 #include "net/quic/test_tools/test_task_runner.h" |
| 9 #include "testing/gtest/include/gtest/gtest.h" |
| 10 |
| 11 namespace net { |
| 12 namespace test { |
| 13 namespace { |
| 14 |
| 15 class TestDelegate : public QuicAlarm::Delegate { |
| 16 public: |
| 17 TestDelegate() : fired_(false) {} |
| 18 |
| 19 void OnAlarm() override { fired_ = true; } |
| 20 |
| 21 bool fired() const { return fired_; } |
| 22 void Clear() { fired_ = false; } |
| 23 |
| 24 private: |
| 25 bool fired_; |
| 26 }; |
| 27 |
| 28 class QuicChromiumAlarmFactoryTest : public ::testing::Test { |
| 29 protected: |
| 30 QuicChromiumAlarmFactoryTest() |
| 31 : runner_(new TestTaskRunner(&clock_)), |
| 32 alarm_factory_(runner_.get(), &clock_) {} |
| 33 |
| 34 scoped_refptr<TestTaskRunner> runner_; |
| 35 QuicChromiumAlarmFactory alarm_factory_; |
| 36 MockClock clock_; |
| 37 }; |
| 38 |
| 39 TEST_F(QuicChromiumAlarmFactoryTest, CreateAlarm) { |
| 40 TestDelegate* delegate = new TestDelegate(); |
| 41 std::unique_ptr<QuicAlarm> alarm(alarm_factory_.CreateAlarm(delegate)); |
| 42 |
| 43 QuicTime::Delta delta = QuicTime::Delta::FromMicroseconds(1); |
| 44 alarm->Set(clock_.Now().Add(delta)); |
| 45 |
| 46 // Verify that the alarm task has been posted. |
| 47 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 48 EXPECT_EQ(base::TimeDelta::FromMicroseconds(delta.ToMicroseconds()), |
| 49 runner_->GetPostedTasks()[0].delay); |
| 50 |
| 51 runner_->RunNextTask(); |
| 52 EXPECT_EQ(QuicTime::Zero().Add(delta), clock_.Now()); |
| 53 EXPECT_TRUE(delegate->fired()); |
| 54 } |
| 55 |
| 56 TEST_F(QuicChromiumAlarmFactoryTest, CreateAlarmAndCancel) { |
| 57 TestDelegate* delegate = new TestDelegate(); |
| 58 std::unique_ptr<QuicAlarm> alarm(alarm_factory_.CreateAlarm(delegate)); |
| 59 |
| 60 QuicTime::Delta delta = QuicTime::Delta::FromMicroseconds(1); |
| 61 alarm->Set(clock_.Now().Add(delta)); |
| 62 alarm->Cancel(); |
| 63 |
| 64 // The alarm task should still be posted. |
| 65 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 66 EXPECT_EQ(base::TimeDelta::FromMicroseconds(delta.ToMicroseconds()), |
| 67 runner_->GetPostedTasks()[0].delay); |
| 68 |
| 69 runner_->RunNextTask(); |
| 70 EXPECT_EQ(QuicTime::Zero().Add(delta), clock_.Now()); |
| 71 EXPECT_FALSE(delegate->fired()); |
| 72 } |
| 73 |
| 74 TEST_F(QuicChromiumAlarmFactoryTest, CreateAlarmAndReset) { |
| 75 TestDelegate* delegate = new TestDelegate(); |
| 76 std::unique_ptr<QuicAlarm> alarm(alarm_factory_.CreateAlarm(delegate)); |
| 77 |
| 78 QuicTime::Delta delta = QuicTime::Delta::FromMicroseconds(1); |
| 79 alarm->Set(clock_.Now().Add(delta)); |
| 80 alarm->Cancel(); |
| 81 QuicTime::Delta new_delta = QuicTime::Delta::FromMicroseconds(3); |
| 82 alarm->Set(clock_.Now().Add(new_delta)); |
| 83 |
| 84 // The alarm task should still be posted. |
| 85 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 86 EXPECT_EQ(base::TimeDelta::FromMicroseconds(delta.ToMicroseconds()), |
| 87 runner_->GetPostedTasks()[0].delay); |
| 88 |
| 89 runner_->RunNextTask(); |
| 90 EXPECT_EQ(QuicTime::Zero().Add(delta), clock_.Now()); |
| 91 EXPECT_FALSE(delegate->fired()); |
| 92 |
| 93 // The alarm task should be posted again. |
| 94 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 95 |
| 96 runner_->RunNextTask(); |
| 97 EXPECT_EQ(QuicTime::Zero().Add(new_delta), clock_.Now()); |
| 98 EXPECT_TRUE(delegate->fired()); |
| 99 } |
| 100 |
| 101 TEST_F(QuicChromiumAlarmFactoryTest, CreateAlarmAndResetEarlier) { |
| 102 TestDelegate* delegate = new TestDelegate(); |
| 103 std::unique_ptr<QuicAlarm> alarm(alarm_factory_.CreateAlarm(delegate)); |
| 104 |
| 105 QuicTime::Delta delta = QuicTime::Delta::FromMicroseconds(3); |
| 106 alarm->Set(clock_.Now().Add(delta)); |
| 107 alarm->Cancel(); |
| 108 QuicTime::Delta new_delta = QuicTime::Delta::FromMicroseconds(1); |
| 109 alarm->Set(clock_.Now().Add(new_delta)); |
| 110 |
| 111 // Both alarm tasks will be posted. |
| 112 ASSERT_EQ(2u, runner_->GetPostedTasks().size()); |
| 113 |
| 114 // The earlier task will execute and will fire the alarm-> |
| 115 runner_->RunNextTask(); |
| 116 EXPECT_EQ(QuicTime::Zero().Add(new_delta), clock_.Now()); |
| 117 EXPECT_TRUE(delegate->fired()); |
| 118 delegate->Clear(); |
| 119 |
| 120 // The latter task is still posted. |
| 121 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 122 |
| 123 // When the latter task is executed, the weak ptr will be invalid and |
| 124 // the alarm will not fire. |
| 125 runner_->RunNextTask(); |
| 126 EXPECT_EQ(QuicTime::Zero().Add(delta), clock_.Now()); |
| 127 EXPECT_FALSE(delegate->fired()); |
| 128 } |
| 129 |
| 130 TEST_F(QuicChromiumAlarmFactoryTest, CreateAlarmAndUpdate) { |
| 131 TestDelegate* delegate = new TestDelegate(); |
| 132 std::unique_ptr<QuicAlarm> alarm(alarm_factory_.CreateAlarm(delegate)); |
| 133 |
| 134 QuicTime start = clock_.Now(); |
| 135 QuicTime::Delta delta = QuicTime::Delta::FromMicroseconds(1); |
| 136 alarm->Set(clock_.Now().Add(delta)); |
| 137 QuicTime::Delta new_delta = QuicTime::Delta::FromMicroseconds(3); |
| 138 alarm->Update(clock_.Now().Add(new_delta), |
| 139 QuicTime::Delta::FromMicroseconds(1)); |
| 140 |
| 141 // The alarm task should still be posted. |
| 142 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 143 EXPECT_EQ(base::TimeDelta::FromMicroseconds(delta.ToMicroseconds()), |
| 144 runner_->GetPostedTasks()[0].delay); |
| 145 |
| 146 runner_->RunNextTask(); |
| 147 EXPECT_EQ(QuicTime::Zero().Add(delta), clock_.Now()); |
| 148 EXPECT_FALSE(delegate->fired()); |
| 149 |
| 150 // Move the alarm forward 1us and ensure it doesn't move forward. |
| 151 alarm->Update(clock_.Now().Add(new_delta), |
| 152 QuicTime::Delta::FromMicroseconds(2)); |
| 153 |
| 154 ASSERT_EQ(1u, runner_->GetPostedTasks().size()); |
| 155 EXPECT_EQ(base::TimeDelta::FromMicroseconds( |
| 156 new_delta.Subtract(delta).ToMicroseconds()), |
| 157 runner_->GetPostedTasks()[0].delay); |
| 158 runner_->RunNextTask(); |
| 159 EXPECT_EQ(start.Add(new_delta), clock_.Now()); |
| 160 EXPECT_TRUE(delegate->fired()); |
| 161 |
| 162 // Set the alarm via an update call. |
| 163 new_delta = QuicTime::Delta::FromMicroseconds(5); |
| 164 alarm->Update(clock_.Now().Add(new_delta), |
| 165 QuicTime::Delta::FromMicroseconds(1)); |
| 166 EXPECT_TRUE(alarm->IsSet()); |
| 167 |
| 168 // Update it with an uninitialized time and ensure it's cancelled. |
| 169 alarm->Update(QuicTime::Zero(), QuicTime::Delta::FromMicroseconds(1)); |
| 170 EXPECT_FALSE(alarm->IsSet()); |
| 171 } |
| 172 |
| 173 } // namespace |
| 174 } // namespace test |
| 175 } // namespace net |
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