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// Copyright 2015 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 "components/metrics/profiler/tracking_synchronizer.h"
#include <utility>
#include "base/bind.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/tracked_objects.h"
#include "components/metrics/profiler/tracking_synchronizer_delegate.h"
#include "components/metrics/profiler/tracking_synchronizer_observer.h"
#include "testing/gtest/include/gtest/gtest.h"
using tracked_objects::ProcessDataPhaseSnapshot;
using tracked_objects::TaskSnapshot;
namespace metrics {
namespace {
class TestDelegate : public TrackingSynchronizerDelegate {
public:
~TestDelegate() override {}
static scoped_ptr<TrackingSynchronizerDelegate> Create(
TrackingSynchronizer* synchronizer) {
return make_scoped_ptr(new TestDelegate());
}
private:
TestDelegate() {}
// TrackingSynchronizerDelegate:
void GetProfilerDataForChildProcesses(int sequence_number,
int current_profiling_phase) override {}
void OnProfilingPhaseCompleted(int profiling_phase) override {}
};
class TestObserver : public TrackingSynchronizerObserver {
public:
TestObserver() {}
~TestObserver() override {
EXPECT_TRUE(got_phase_0_);
EXPECT_TRUE(got_phase_1_);
}
void ReceivedProfilerData(
const ProfilerDataAttributes& attributes,
const tracked_objects::ProcessDataPhaseSnapshot& process_data_phase,
const ProfilerEvents& past_events) override {
EXPECT_EQ(static_cast<base::ProcessId>(239), attributes.process_id);
EXPECT_EQ(ProfilerEventProto::TrackedObject::PLUGIN,
attributes.process_type);
ASSERT_EQ(1u, process_data_phase.tasks.size());
switch (attributes.profiling_phase) {
case 0:
EXPECT_FALSE(got_phase_0_);
got_phase_0_ = true;
EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(111),
attributes.phase_start);
EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(333),
attributes.phase_finish);
EXPECT_EQ("death_thread0",
process_data_phase.tasks[0].death_thread_name);
EXPECT_EQ(0u, past_events.size());
break;
case 1:
EXPECT_FALSE(got_phase_1_);
got_phase_1_ = true;
EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(333),
attributes.phase_start);
EXPECT_EQ(base::TimeTicks() + base::TimeDelta::FromMilliseconds(777),
attributes.phase_finish);
EXPECT_EQ("death_thread1",
process_data_phase.tasks[0].death_thread_name);
ASSERT_EQ(1u, past_events.size());
EXPECT_EQ(ProfilerEventProto::EVENT_FIRST_NONEMPTY_PAINT,
past_events[0]);
break;
default:
bool profiling_phase_is_neither_0_nor_1 = true;
EXPECT_FALSE(profiling_phase_is_neither_0_nor_1);
}
}
private:
bool got_phase_0_ = false;
bool got_phase_1_ = false;
DISALLOW_COPY_AND_ASSIGN(TestObserver);
};
class TestTrackingSynchronizer : public TrackingSynchronizer {
public:
explicit TestTrackingSynchronizer(scoped_ptr<base::TickClock> clock)
: TrackingSynchronizer(std::move(clock),
base::Bind(&TestDelegate::Create)) {}
using TrackingSynchronizer::RegisterPhaseCompletion;
using TrackingSynchronizer::SendData;
private:
~TestTrackingSynchronizer() override {}
};
} // namespace
TEST(TrackingSynchronizerTest, ProfilerData) {
// Testing how TrackingSynchronizer reports 2 phases of profiling.
auto clock = new base::SimpleTestTickClock(); // Will be owned by
// |tracking_synchronizer|.
clock->Advance(base::TimeDelta::FromMilliseconds(111));
scoped_refptr<TestTrackingSynchronizer> tracking_synchronizer =
new TestTrackingSynchronizer(make_scoped_ptr(clock));
clock->Advance(base::TimeDelta::FromMilliseconds(222));
tracking_synchronizer->RegisterPhaseCompletion(
ProfilerEventProto::EVENT_FIRST_NONEMPTY_PAINT);
tracked_objects::ProcessDataSnapshot profiler_data;
ProcessDataPhaseSnapshot snapshot0;
tracked_objects::TaskSnapshot task_snapshot0;
task_snapshot0.death_thread_name = "death_thread0";
snapshot0.tasks.push_back(task_snapshot0);
ProcessDataPhaseSnapshot snapshot1;
profiler_data.phased_snapshots[0] = snapshot0;
tracked_objects::TaskSnapshot task_snapshot1;
task_snapshot1.death_thread_name = "death_thread1";
snapshot1.tasks.push_back(task_snapshot1);
profiler_data.phased_snapshots[1] = snapshot1;
profiler_data.process_id = 239;
clock->Advance(base::TimeDelta::FromMilliseconds(444));
TestObserver test_observer;
tracking_synchronizer->SendData(
profiler_data, ProfilerEventProto::TrackedObject::PLUGIN, &test_observer);
}
} // namespace metrics
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