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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 "ash/metrics/task_switch_time_tracker.h" | 5 #include "ash/metrics/task_switch_time_tracker.h" |
| 6 | 6 |
| 7 #include <string> | 7 #include <string> |
| 8 | 8 |
| 9 #include "ash/test/task_switch_time_tracker_test_api.h" | 9 #include "ash/test/task_switch_time_tracker_test_api.h" |
| 10 #include "base/test/histogram_tester.h" | 10 #include "base/test/histogram_tester.h" |
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| 39 // Used to verify recorded histogram data. | 39 // Used to verify recorded histogram data. |
| 40 std::unique_ptr<base::HistogramTester> histogram_tester_; | 40 std::unique_ptr<base::HistogramTester> histogram_tester_; |
| 41 | 41 |
| 42 // A Test API that wraps the test target. | 42 // A Test API that wraps the test target. |
| 43 std::unique_ptr<test::TaskSwitchTimeTrackerTestAPI> time_tracker_test_api_; | 43 std::unique_ptr<test::TaskSwitchTimeTrackerTestAPI> time_tracker_test_api_; |
| 44 | 44 |
| 45 private: | 45 private: |
| 46 DISALLOW_COPY_AND_ASSIGN(TaskSwitchTimeTrackerTest); | 46 DISALLOW_COPY_AND_ASSIGN(TaskSwitchTimeTrackerTest); |
| 47 }; | 47 }; |
| 48 | 48 |
| 49 TaskSwitchTimeTrackerTest::TaskSwitchTimeTrackerTest() { | 49 TaskSwitchTimeTrackerTest::TaskSwitchTimeTrackerTest() {} |
| 50 } | |
| 51 | 50 |
| 52 TaskSwitchTimeTrackerTest::~TaskSwitchTimeTrackerTest() { | 51 TaskSwitchTimeTrackerTest::~TaskSwitchTimeTrackerTest() {} |
| 53 } | |
| 54 | 52 |
| 55 void TaskSwitchTimeTrackerTest::SetUp() { | 53 void TaskSwitchTimeTrackerTest::SetUp() { |
| 56 testing::Test::SetUp(); | 54 testing::Test::SetUp(); |
| 57 | 55 |
| 58 histogram_tester_.reset(new base::HistogramTester()); | 56 histogram_tester_.reset(new base::HistogramTester()); |
| 59 time_tracker_test_api_.reset( | 57 time_tracker_test_api_.reset( |
| 60 new test::TaskSwitchTimeTrackerTestAPI(kHistogramName)); | 58 new test::TaskSwitchTimeTrackerTestAPI(kHistogramName)); |
| 61 // The TaskSwitchTimeTracker interprets a value of base::TimeTicks() as if the | 59 // The TaskSwitchTimeTracker interprets a value of base::TimeTicks() as if the |
| 62 // |last_action_time_| has not been set. | 60 // |last_action_time_| has not been set. |
| 63 time_tracker_test_api_->Advance(base::TimeDelta::FromMilliseconds(1)); | 61 time_tracker_test_api_->Advance(base::TimeDelta::FromMilliseconds(1)); |
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| 98 histogram_tester_->ExpectTotalCount(kHistogramName, 1); | 96 histogram_tester_->ExpectTotalCount(kHistogramName, 1); |
| 99 histogram_tester_->ExpectBucketCount(kHistogramName, 0, 1); | 97 histogram_tester_->ExpectBucketCount(kHistogramName, 0, 1); |
| 100 | 98 |
| 101 time_tracker_test_api_->Advance(base::TimeDelta::FromSeconds(1)); | 99 time_tracker_test_api_->Advance(base::TimeDelta::FromSeconds(1)); |
| 102 OnTaskSwitch(); | 100 OnTaskSwitch(); |
| 103 histogram_tester_->ExpectTotalCount(kHistogramName, 2); | 101 histogram_tester_->ExpectTotalCount(kHistogramName, 2); |
| 104 histogram_tester_->ExpectBucketCount(kHistogramName, 1, 1); | 102 histogram_tester_->ExpectBucketCount(kHistogramName, 1, 1); |
| 105 } | 103 } |
| 106 | 104 |
| 107 } // namespace ash | 105 } // namespace ash |
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