src/cobalt/base/c_val_collection_timer_stats_test.cc

/*
 * Copyright 2017 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <string>

#include "base/time.h"
#include "cobalt/base/c_val_collection_timer_stats.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

using ::testing::InSequence;
using ::testing::Return;
using ::testing::SaveArg;
using ::testing::_;

namespace base {

TEST(CValCollectionTimerStatsTest, DefaultValues) {
  const std::string name = "CollectionTimerStats";
  const size_t max_size = 5;

  base::CValCollectionTimerStats<> cval(name, max_size);

  base::CValManager* cvm = base::CValManager::GetInstance();
  base::optional<std::string> count =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Cnt", name.c_str()));
  base::optional<std::string> avg =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Avg", name.c_str()));
  base::optional<std::string> min =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Min", name.c_str()));
  base::optional<std::string> max =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Max", name.c_str()));
  base::optional<std::string> pct25 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.25th", name.c_str()));
  base::optional<std::string> pct50 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.50th", name.c_str()));
  base::optional<std::string> pct75 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.75th", name.c_str()));
  base::optional<std::string> pct95 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.95th", name.c_str()));
  base::optional<std::string> std =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Std", name.c_str()));

  EXPECT_TRUE(count);
  EXPECT_EQ(*count, "0");
  EXPECT_TRUE(avg);
  EXPECT_EQ(*avg, "0us");
  EXPECT_TRUE(min);
  EXPECT_EQ(*min, "0us");
  EXPECT_TRUE(max);
  EXPECT_EQ(*max, "0us");
  EXPECT_TRUE(pct25);
  EXPECT_EQ(*pct25, "0us");
  EXPECT_TRUE(pct50);
  EXPECT_EQ(*pct50, "0us");
  EXPECT_TRUE(pct75);
  EXPECT_EQ(*pct75, "0us");
  EXPECT_TRUE(pct95);
  EXPECT_EQ(*pct95, "0us");
  EXPECT_TRUE(std);
  EXPECT_EQ(*std, "0us");
}

TEST(CValCollectionTimerStatsTest, NoFlush) {
  const std::string name = "CollectionTimerStats";
  const size_t max_size = 5;

  base::CValCollectionTimerStats<> cval(name, max_size);
  cval.Start(base::TimeTicks::FromInternalValue(1000));
  cval.Stop(base::TimeTicks::FromInternalValue(4000));
  cval.Start(base::TimeTicks::FromInternalValue(4000));
  cval.Stop(base::TimeTicks::FromInternalValue(13000));
  cval.Start(base::TimeTicks::FromInternalValue(13000));
  cval.Stop(base::TimeTicks::FromInternalValue(14000));
  cval.Start(base::TimeTicks::FromInternalValue(14000));
  cval.Stop(base::TimeTicks::FromInternalValue(21000));

  base::CValManager* cvm = base::CValManager::GetInstance();
  base::optional<std::string> count =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Cnt", name.c_str()));
  base::optional<std::string> avg =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Avg", name.c_str()));
  base::optional<std::string> min =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Min", name.c_str()));
  base::optional<std::string> max =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Max", name.c_str()));
  base::optional<std::string> pct25 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.25th", name.c_str()));
  base::optional<std::string> pct50 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.50th", name.c_str()));
  base::optional<std::string> pct75 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.75th", name.c_str()));
  base::optional<std::string> pct95 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.95th", name.c_str()));
  base::optional<std::string> std =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Std", name.c_str()));

  EXPECT_TRUE(count);
  EXPECT_EQ(*count, "0");
  EXPECT_TRUE(avg);
  EXPECT_EQ(*avg, "0us");
  EXPECT_TRUE(min);
  EXPECT_EQ(*min, "0us");
  EXPECT_TRUE(max);
  EXPECT_EQ(*max, "0us");
  EXPECT_TRUE(pct25);
  EXPECT_EQ(*pct25, "0us");
  EXPECT_TRUE(pct50);
  EXPECT_EQ(*pct50, "0us");
  EXPECT_TRUE(pct75);
  EXPECT_EQ(*pct75, "0us");
  EXPECT_TRUE(pct95);
  EXPECT_EQ(*pct95, "0us");
  EXPECT_TRUE(std);
  EXPECT_EQ(*std, "0us");
}

TEST(CValCollectionTimerStatsTest, MaxSizeFlush) {
  const std::string name = "CollectionTimerStats";
  const size_t max_size = 5;

  base::CValCollectionTimerStats<> cval(name, max_size);
  cval.Start(base::TimeTicks::FromInternalValue(1000));
  cval.Stop(base::TimeTicks::FromInternalValue(4000));
  cval.Start(base::TimeTicks::FromInternalValue(4000));
  cval.Stop(base::TimeTicks::FromInternalValue(13000));
  cval.Start(base::TimeTicks::FromInternalValue(13000));
  cval.Stop(base::TimeTicks::FromInternalValue(14000));
  cval.Start(base::TimeTicks::FromInternalValue(14000));
  cval.Stop(base::TimeTicks::FromInternalValue(21000));
  cval.Start(base::TimeTicks::FromInternalValue(21000));
  cval.Stop(base::TimeTicks::FromInternalValue(26000));
  cval.Flush();

  base::CValManager* cvm = base::CValManager::GetInstance();
  base::optional<std::string> count =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Cnt", name.c_str()));
  base::optional<std::string> avg =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Avg", name.c_str()));
  base::optional<std::string> min =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Min", name.c_str()));
  base::optional<std::string> max =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Max", name.c_str()));
  base::optional<std::string> pct25 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.25th", name.c_str()));
  base::optional<std::string> pct50 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.50th", name.c_str()));
  base::optional<std::string> pct75 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.75th", name.c_str()));
  base::optional<std::string> pct95 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.95th", name.c_str()));
  base::optional<std::string> std =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Std", name.c_str()));

  EXPECT_TRUE(count);
  EXPECT_EQ(*count, "5");
  EXPECT_TRUE(avg);
  EXPECT_EQ(*avg, "5.0ms");
  EXPECT_TRUE(min);
  EXPECT_EQ(*min, "1000us");
  EXPECT_TRUE(max);
  EXPECT_EQ(*max, "9.0ms");
  EXPECT_TRUE(pct25);
  EXPECT_EQ(*pct25, "3.0ms");
  EXPECT_TRUE(pct50);
  EXPECT_EQ(*pct50, "5.0ms");
  EXPECT_TRUE(pct75);
  EXPECT_EQ(*pct75, "7.0ms");
  EXPECT_TRUE(pct95);
  EXPECT_EQ(*pct95, "8.6ms");
  EXPECT_TRUE(std);
  EXPECT_EQ(*std, "3.2ms");
}

TEST(CValCollectionTimerStatsTest, ManualFlush) {
  const std::string name = "CollectionTimerStats";
  const size_t max_size = 5;

  base::CValCollectionTimerStats<CValPublic> cval(name, max_size);
  cval.Start(base::TimeTicks::FromInternalValue(1000));
  cval.Stop(base::TimeTicks::FromInternalValue(4000));
  cval.Start(base::TimeTicks::FromInternalValue(4000));
  cval.Stop(base::TimeTicks::FromInternalValue(13000));
  cval.Start(base::TimeTicks::FromInternalValue(13000));
  cval.Stop(base::TimeTicks::FromInternalValue(14000));
  cval.Start(base::TimeTicks::FromInternalValue(14000));
  cval.Stop(base::TimeTicks::FromInternalValue(21000));
  cval.Flush();
  cval.Start(base::TimeTicks::FromInternalValue(21000));
  cval.Stop(base::TimeTicks::FromInternalValue(26000));

  base::CValManager* cvm = base::CValManager::GetInstance();
  base::optional<std::string> count =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Cnt", name.c_str()));
  base::optional<std::string> avg =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Avg", name.c_str()));
  base::optional<std::string> min =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Min", name.c_str()));
  base::optional<std::string> max =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Max", name.c_str()));
  base::optional<std::string> pct25 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.25th", name.c_str()));
  base::optional<std::string> pct50 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.50th", name.c_str()));
  base::optional<std::string> pct75 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.75th", name.c_str()));
  base::optional<std::string> pct95 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.95th", name.c_str()));
  base::optional<std::string> std =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Std", name.c_str()));

  EXPECT_TRUE(count);
  EXPECT_EQ(*count, "4");
  EXPECT_TRUE(avg);
  EXPECT_EQ(*avg, "5.0ms");
  EXPECT_TRUE(min);
  EXPECT_EQ(*min, "1000us");
  EXPECT_TRUE(max);
  EXPECT_EQ(*max, "9.0ms");
  EXPECT_TRUE(pct25);
  EXPECT_EQ(*pct25, "2.5ms");
  EXPECT_TRUE(pct50);
  EXPECT_EQ(*pct50, "5.0ms");
  EXPECT_TRUE(pct75);
  EXPECT_EQ(*pct75, "7.5ms");
  EXPECT_TRUE(pct95);
  EXPECT_EQ(*pct95, "8.7ms");
  EXPECT_TRUE(std);
  EXPECT_EQ(*std, "3.7ms");
}

TEST(CValCollectionTimerStatsTest, TwoManualFlushes) {
  const std::string name = "CollectionTimer";
  const size_t max_size = 5;

  base::CValCollectionTimerStats<CValDebug> cval(name, max_size);
  cval.Start(base::TimeTicks::FromInternalValue(1000));
  cval.Stop(base::TimeTicks::FromInternalValue(4000));
  cval.Start(base::TimeTicks::FromInternalValue(4000));
  cval.Stop(base::TimeTicks::FromInternalValue(13000));
  cval.Start(base::TimeTicks::FromInternalValue(13000));
  cval.Stop(base::TimeTicks::FromInternalValue(14000));
  cval.Start(base::TimeTicks::FromInternalValue(14000));
  cval.Stop(base::TimeTicks::FromInternalValue(21000));
  cval.Flush();
  cval.Start(base::TimeTicks::FromInternalValue(21000));
  cval.Stop(base::TimeTicks::FromInternalValue(26000));
  cval.Flush();

  base::CValManager* cvm = base::CValManager::GetInstance();
  base::optional<std::string> count =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Cnt", name.c_str()));
  base::optional<std::string> avg =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Avg", name.c_str()));
  base::optional<std::string> min =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Min", name.c_str()));
  base::optional<std::string> max =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Max", name.c_str()));
  base::optional<std::string> pct25 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.25th", name.c_str()));
  base::optional<std::string> pct50 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.50th", name.c_str()));
  base::optional<std::string> pct75 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.75th", name.c_str()));
  base::optional<std::string> pct95 =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Pct.95th", name.c_str()));
  base::optional<std::string> std =
      cvm->GetValueAsPrettyString(StringPrintf("%s.Std", name.c_str()));

  EXPECT_TRUE(count);
  EXPECT_EQ(*count, "1");
  EXPECT_TRUE(avg);
  EXPECT_EQ(*avg, "5.0ms");
  EXPECT_TRUE(min);
  EXPECT_EQ(*min, "5.0ms");
  EXPECT_TRUE(max);
  EXPECT_EQ(*max, "5.0ms");
  EXPECT_TRUE(pct25);
  EXPECT_EQ(*pct25, "5.0ms");
  EXPECT_TRUE(pct50);
  EXPECT_EQ(*pct50, "5.0ms");
  EXPECT_TRUE(pct75);
  EXPECT_EQ(*pct75, "5.0ms");
  EXPECT_TRUE(pct95);
  EXPECT_EQ(*pct95, "5.0ms");
  EXPECT_TRUE(std);
  EXPECT_EQ(*std, "0us");
}

}  // namespace base