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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "perf_test_helpers.h"
#include <algorithm>
#include "base/logging.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_test.h"
namespace tracing {
namespace {
void PrintPerfTestMs(const std::string& name, int64_t value) {
CHECK(::testing::UnitTest::GetInstance() != nullptr) << "Must be GTest.";
const ::testing::TestInfo* test_info =
::testing::UnitTest::GetInstance()->current_test_info();
CHECK(test_info != nullptr) << "Must be GTest.";
perf_test::PrintResult(test_info->test_case_name(),
std::string(".") + test_info->name(),
name, static_cast<double>(value), "ms", true);
}
} // namespace
ScopedStopwatch::ScopedStopwatch(const std::string& name) : name_(name) {
begin_= base::TimeTicks::Now();
}
ScopedStopwatch::~ScopedStopwatch() {
int64_t value = (base::TimeTicks::Now() - begin_).InMilliseconds();
PrintPerfTestMs(name_, value);
}
IterableStopwatch::IterableStopwatch(const std::string& name) : name_(name) {
begin_ = base::TimeTicks::Now();
}
void IterableStopwatch::NextLap() {
base::TimeTicks now = base::TimeTicks::Now();
int64_t elapsed = (now - begin_).InMilliseconds();
begin_ = now;
laps_.push_back(elapsed);
}
IterableStopwatch::~IterableStopwatch() {
CHECK(!laps_.empty());
std::sort(laps_.begin(), laps_.end());
int64_t median = laps_.at(laps_.size() / 2);
PrintPerfTestMs(name_, median);
}
} // namespace tracing
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