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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 <stddef.h> | 5 #include <stddef.h> |
6 | 6 |
7 #include <vector> | 7 #include <vector> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/json/json_reader.h" | 10 #include "base/json/json_reader.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "base/metrics/histogram_macros.h" | 12 #include "base/metrics/histogram_macros.h" |
| 13 #include "base/metrics/histogram_persistence.h" |
13 #include "base/metrics/sparse_histogram.h" | 14 #include "base/metrics/sparse_histogram.h" |
14 #include "base/metrics/statistics_recorder.h" | 15 #include "base/metrics/statistics_recorder.h" |
15 #include "base/values.h" | 16 #include "base/values.h" |
16 #include "testing/gtest/include/gtest/gtest.h" | 17 #include "testing/gtest/include/gtest/gtest.h" |
17 | 18 |
18 namespace base { | 19 namespace base { |
19 | 20 |
20 class StatisticsRecorderTest : public testing::Test { | 21 class StatisticsRecorderTest : public testing::Test { |
21 protected: | 22 protected: |
22 void SetUp() override { | 23 void SetUp() override { |
23 // Each test will have a clean state (no Histogram / BucketRanges | 24 // Each test will have a clean state (no Histogram / BucketRanges |
24 // registered). | 25 // registered). |
25 InitializeStatisticsRecorder(); | 26 InitializeStatisticsRecorder(); |
26 } | 27 } |
27 | 28 |
28 void TearDown() override { UninitializeStatisticsRecorder(); } | 29 void TearDown() override { |
| 30 UninitializeStatisticsRecorder(); |
| 31 SetPersistentHistogramMemoryAllocator(nullptr); |
| 32 } |
29 | 33 |
30 void InitializeStatisticsRecorder() { | 34 void InitializeStatisticsRecorder() { |
31 statistics_recorder_ = new StatisticsRecorder(); | 35 statistics_recorder_ = new StatisticsRecorder(); |
32 } | 36 } |
33 | 37 |
34 void UninitializeStatisticsRecorder() { | 38 void UninitializeStatisticsRecorder() { |
35 delete statistics_recorder_; | 39 delete statistics_recorder_; |
36 statistics_recorder_ = NULL; | 40 statistics_recorder_ = NULL; |
37 } | 41 } |
38 | 42 |
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308 EXPECT_EQ("TestHistogram2", histogram_name); | 312 EXPECT_EQ("TestHistogram2", histogram_name); |
309 | 313 |
310 json.clear(); | 314 json.clear(); |
311 UninitializeStatisticsRecorder(); | 315 UninitializeStatisticsRecorder(); |
312 | 316 |
313 // No data should be returned. | 317 // No data should be returned. |
314 json = StatisticsRecorder::ToJSON(query); | 318 json = StatisticsRecorder::ToJSON(query); |
315 EXPECT_TRUE(json.empty()); | 319 EXPECT_TRUE(json.empty()); |
316 } | 320 } |
317 | 321 |
| 322 TEST_F(StatisticsRecorderTest, IterationTest) { |
| 323 StatisticsRecorder::Histograms registered_histograms; |
| 324 LOCAL_HISTOGRAM_COUNTS("TestHistogram.IterationTest1", 30); |
| 325 SetPersistentHistogramMemoryAllocator( |
| 326 new LocalPersistentMemoryAllocator(64 << 10, 0, std::string())); |
| 327 LOCAL_HISTOGRAM_COUNTS("TestHistogram.IterationTest2", 30); |
| 328 |
| 329 StatisticsRecorder::HistogramIterator i1 = StatisticsRecorder::begin(true); |
| 330 EXPECT_NE(StatisticsRecorder::end(), i1); |
| 331 EXPECT_NE(StatisticsRecorder::end(), ++i1); |
| 332 EXPECT_EQ(StatisticsRecorder::end(), ++i1); |
| 333 |
| 334 StatisticsRecorder::HistogramIterator i2 = StatisticsRecorder::begin(false); |
| 335 EXPECT_NE(StatisticsRecorder::end(), i2); |
| 336 EXPECT_EQ(StatisticsRecorder::end(), ++i2); |
| 337 } |
| 338 |
318 namespace { | 339 namespace { |
319 | 340 |
320 // CallbackCheckWrapper is simply a convenient way to check and store that | 341 // CallbackCheckWrapper is simply a convenient way to check and store that |
321 // a callback was actually run. | 342 // a callback was actually run. |
322 struct CallbackCheckWrapper { | 343 struct CallbackCheckWrapper { |
323 CallbackCheckWrapper() : called(false), last_histogram_value(0) {} | 344 CallbackCheckWrapper() : called(false), last_histogram_value(0) {} |
324 | 345 |
325 void OnHistogramChanged(base::HistogramBase::Sample histogram_value) { | 346 void OnHistogramChanged(base::HistogramBase::Sample histogram_value) { |
326 called = true; | 347 called = true; |
327 last_histogram_value = histogram_value; | 348 last_histogram_value = histogram_value; |
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483 HistogramBase* histogram = Histogram::FactoryGet("TestHistogram", 1, 1000, 10, | 504 HistogramBase* histogram = Histogram::FactoryGet("TestHistogram", 1, 1000, 10, |
484 HistogramBase::kNoFlags); | 505 HistogramBase::kNoFlags); |
485 EXPECT_TRUE(histogram); | 506 EXPECT_TRUE(histogram); |
486 histogram->Add(1); | 507 histogram->Add(1); |
487 | 508 |
488 EXPECT_TRUE(callback_wrapper.called); | 509 EXPECT_TRUE(callback_wrapper.called); |
489 EXPECT_EQ(callback_wrapper.last_histogram_value, 1); | 510 EXPECT_EQ(callback_wrapper.last_histogram_value, 1); |
490 } | 511 } |
491 | 512 |
492 } // namespace base | 513 } // namespace base |
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