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// Copyright (c) 2012 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 <string>
#include "base/basictypes.h"
#include "base/json/json_writer.h"
#include "base/process/process_handle.h"
#include "base/strings/string_number_conversions.h"
#include "base/tracked_objects.h"
#include "base/values.h"
#include "chrome/browser/task_profiler/task_profiler_data_serializer.h"
#include "content/public/common/process_type.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
std::string GetProcessIdString() {
return base::IntToString(base::GetCurrentProcId());
}
void ExpectSerialization(
const tracked_objects::ProcessDataSnapshot& process_data,
int process_type,
const std::string& expected_json) {
base::DictionaryValue serialized_value;
task_profiler::TaskProfilerDataSerializer::ToValue(
process_data, process_type, &serialized_value);
std::string serialized_json;
base::JSONWriter::Write(&serialized_value, &serialized_json);
EXPECT_EQ(expected_json, serialized_json);
}
} // anonymous namespace
// Tests the JSON serialization format for profiled process data.
TEST(TaskProfilerDataSerializerTest, SerializeProcessDataToJson) {
{
// Empty data.
tracked_objects::ProcessDataSnapshot process_data;
int process_type = content::PROCESS_TYPE_BROWSER;
ExpectSerialization(process_data, process_type,
"{"
"\"descendants\":["
"],"
"\"list\":["
"],"
"\"process_id\":" + GetProcessIdString() + ","
"\"process_type\":\"Browser\""
"}");
}
{
// Non-empty data.
tracked_objects::ProcessDataSnapshot process_data;
tracked_objects::BirthOnThreadSnapshot parent;
parent.location.file_name = "path/to/foo.cc";
parent.location.function_name = "WhizBang";
parent.location.line_number = 101;
parent.thread_name = "CrBrowserMain";
tracked_objects::BirthOnThreadSnapshot child;
child.location.file_name = "path/to/bar.cc";
child.location.function_name = "FizzBoom";
child.location.line_number = 433;
child.thread_name = "Chrome_IOThread";
// Add a snapshot.
process_data.tasks.push_back(tracked_objects::TaskSnapshot());
process_data.tasks.back().birth = parent;
process_data.tasks.back().death_data.count = 37;
process_data.tasks.back().death_data.run_duration_max = 5;
process_data.tasks.back().death_data.run_duration_sample = 3;
process_data.tasks.back().death_data.run_duration_sum = 17;
process_data.tasks.back().death_data.queue_duration_max = 53;
process_data.tasks.back().death_data.queue_duration_sample = 13;
process_data.tasks.back().death_data.queue_duration_sum = 79;
process_data.tasks.back().death_thread_name = "WorkerPool/-1340960768";
// Add a second snapshot.
process_data.tasks.push_back(tracked_objects::TaskSnapshot());
process_data.tasks.back().birth = child;
process_data.tasks.back().death_data.count = 41;
process_data.tasks.back().death_data.run_duration_max = 205;
process_data.tasks.back().death_data.run_duration_sample = 203;
process_data.tasks.back().death_data.run_duration_sum = 2017;
process_data.tasks.back().death_data.queue_duration_max = 2053;
process_data.tasks.back().death_data.queue_duration_sample = 2013;
process_data.tasks.back().death_data.queue_duration_sum = 2079;
process_data.tasks.back().death_thread_name = "PAC thread #3";
// Add a parent-child pair.
process_data.descendants.push_back(
tracked_objects::ParentChildPairSnapshot());
process_data.descendants.back().parent = parent;
process_data.descendants.back().child = child;
int process_type = content::PROCESS_TYPE_RENDERER;
ExpectSerialization(process_data, process_type,
"{"
"\"descendants\":["
"{"
"\"child_location\":{"
"\"file_name\":\"path/to/bar.cc\","
"\"function_name\":\"FizzBoom\","
"\"line_number\":433"
"},"
"\"child_thread\":\"Chrome_IOThread\","
"\"parent_location\":{"
"\"file_name\":\"path/to/foo.cc\","
"\"function_name\":\"WhizBang\","
"\"line_number\":101"
"},"
"\"parent_thread\":\"CrBrowserMain\""
"}"
"],"
"\"list\":[{"
"\"birth_location\":{"
"\"file_name\":\"path/to/foo.cc\","
"\"function_name\":\"WhizBang\","
"\"line_number\":101"
"},"
"\"birth_thread\":\"CrBrowserMain\","
"\"death_data\":{"
"\"count\":37,"
"\"queue_ms\":79,"
"\"queue_ms_max\":53,"
"\"queue_ms_sample\":13,"
"\"run_ms\":17,"
"\"run_ms_max\":5,"
"\"run_ms_sample\":3"
"},"
"\"death_thread\":\"WorkerPool/-1340960768\""
"},{"
"\"birth_location\":{"
"\"file_name\":\"path/to/bar.cc\","
"\"function_name\":\"FizzBoom\","
"\"line_number\":433"
"},"
"\"birth_thread\":\"Chrome_IOThread\","
"\"death_data\":{"
"\"count\":41,"
"\"queue_ms\":2079,"
"\"queue_ms_max\":2053,"
"\"queue_ms_sample\":2013,"
"\"run_ms\":2017,"
"\"run_ms_max\":205,"
"\"run_ms_sample\":203"
"},"
"\"death_thread\":\"PAC thread #3\""
"}],"
"\"process_id\":" + GetProcessIdString() + ","
"\"process_type\":\"Tab\""
"}");
}
}
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