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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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