| // Copyright 2015 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/metrics/histogram_macros.h" |
| |
| #include "base/test/metrics/histogram_tester.h" |
| #include "base/time/time.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| |
| TEST(ScopedHistogramTimer, ThreeTimersOneScope) { |
| SCOPED_UMA_HISTOGRAM_TIMER_MICROS("TestShortTimer0"); |
| SCOPED_UMA_HISTOGRAM_TIMER_MICROS("TestShortTimer1"); |
| SCOPED_UMA_HISTOGRAM_TIMER("TestTimer0"); |
| SCOPED_UMA_HISTOGRAM_TIMER("TestTimer1"); |
| SCOPED_UMA_HISTOGRAM_LONG_TIMER("TestLongTimer0"); |
| SCOPED_UMA_HISTOGRAM_LONG_TIMER("TestLongTimer1"); |
| } |
| |
| // Compile tests for UMA_HISTOGRAM_ENUMERATION with the three different types it |
| // accepts: |
| // - integral types |
| // - unscoped enums |
| // - scoped enums |
| TEST(HistogramMacro, IntegralPseudoEnumeration) { |
| UMA_HISTOGRAM_ENUMERATION("Test.FauxEnumeration", 1, 1000); |
| } |
| |
| TEST(HistogramMacro, UnscopedEnumeration) { |
| enum TestEnum : char { |
| FIRST_VALUE, |
| SECOND_VALUE, |
| THIRD_VALUE, |
| MAX_ENTRIES, |
| }; |
| UMA_HISTOGRAM_ENUMERATION("Test.UnscopedEnumeration", SECOND_VALUE, |
| MAX_ENTRIES); |
| } |
| |
| TEST(HistogramMacro, ScopedEnumeration) { |
| enum class TestEnum { |
| FIRST_VALUE, |
| SECOND_VALUE, |
| THIRD_VALUE, |
| kMaxValue = THIRD_VALUE, |
| }; |
| UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration", TestEnum::FIRST_VALUE); |
| |
| enum class TestEnum2 { |
| FIRST_VALUE, |
| SECOND_VALUE, |
| THIRD_VALUE, |
| MAX_ENTRIES, |
| }; |
| UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration2", TestEnum2::SECOND_VALUE, |
| TestEnum2::MAX_ENTRIES); |
| } |
| |
| // Compile tests for UMA_HISTOGRAM_ENUMERATION when the value type is: |
| // - a const reference to an enum |
| // - a non-const reference to an enum |
| TEST(HistogramMacro, EnumerationConstRef) { |
| enum class TestEnum { kValue, kMaxValue = kValue }; |
| const TestEnum& value_ref = TestEnum::kValue; |
| UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration3", value_ref); |
| } |
| |
| TEST(HistogramMacro, EnumerationNonConstRef) { |
| enum class TestEnum { kValue, kMaxValue = kValue }; |
| TestEnum value = TestEnum::kValue; |
| TestEnum& value_ref = value; |
| UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration4", value_ref); |
| } |
| |
| TEST(HistogramMacro, SplitByProcessPriorityMacro) { |
| TimeTicks mock_now = TimeTicks::Now(); |
| |
| constexpr TimeDelta kMockIntervalBetweenSamples = Seconds(1); |
| |
| { |
| // No BestEffort suffix by default (SetSharedLastForegroundTimeForMetrics |
| // not invoked yet in this process). |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| Microseconds(0), "Test.MyCount", |
| 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 1); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 0); |
| } |
| |
| mock_now += kMockIntervalBetweenSamples; |
| std::atomic<base::TimeTicks> shared_last_foreground_time = mock_now; |
| internal::SetSharedLastForegroundTimeForMetrics(&shared_last_foreground_time); |
| |
| { |
| // No BestEffort suffix while foreground. |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| Microseconds(0), "Test.MyCount", |
| 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 1); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 0); |
| } |
| |
| mock_now += kMockIntervalBetweenSamples; |
| shared_last_foreground_time.store(TimeTicks(), std::memory_order_relaxed); |
| |
| { |
| // BestEffort suffix while in BestEffort. |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| Microseconds(0), "Test.MyCount", |
| 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 0); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 1); |
| } |
| |
| mock_now += kMockIntervalBetweenSamples; |
| shared_last_foreground_time.store(mock_now, std::memory_order_relaxed); |
| |
| { |
| // No BestEffort suffix once back to normal priority. |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| Microseconds(0), "Test.MyCount", |
| 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 1); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 0); |
| } |
| { |
| // BestEffort suffix while normal priority if the sample_interval overlaps |
| // into a BestEffort range. |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| kMockIntervalBetweenSamples * 1.5, |
| "Test.MyCount", 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 0); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 1); |
| } |
| { |
| HistogramTester tester; |
| // ... and also if the sample was taken at a time before the last foreground |
| // time: |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY( |
| UMA_HISTOGRAM_COUNTS_1000, mock_now - kMockIntervalBetweenSamples * 1.5, |
| Microseconds(0), "Test.MyCount", 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 0); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 1); |
| } |
| |
| // Reset the global state at the end of the test. |
| internal::SetSharedLastForegroundTimeForMetrics(nullptr); |
| |
| { |
| // No BestEffort suffix by default, again. |
| HistogramTester tester; |
| UMA_HISTOGRAM_SPLIT_BY_PROCESS_PRIORITY(UMA_HISTOGRAM_COUNTS_1000, mock_now, |
| Microseconds(0), "Test.MyCount", |
| 123); |
| tester.ExpectUniqueSample("Test.MyCount", 123, 1); |
| tester.ExpectUniqueSample("Test.MyCount.BestEffort", 123, 0); |
| } |
| } |
| |
| } // namespace base |