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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/tracing/arc_system_stat_collector.h"
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/json/json_reader.h"
#include "base/path_service.h"
#include "chrome/common/chrome_paths.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace arc {
using ArcSystemStatCollectorTest = testing::Test;
namespace {
base::ScopedFD OpenTestStatFile(const std::string& name) {
base::FilePath base_path;
base::PathService::Get(chrome::DIR_TEST_DATA, &base_path);
const base::FilePath path =
base_path.Append("arc_overview_tracing").Append(name);
base::ScopedFD result(open(path.value().c_str(), O_RDONLY));
DCHECK_GE(result.get(), 0);
return result;
}
} // namespace
TEST_F(ArcSystemStatCollectorTest, Parse) {
int64_t zram_values[3];
EXPECT_TRUE(ParseStatFile(OpenTestStatFile("zram_stat").get(),
ArcSystemStatCollector::kZramStatColumns,
zram_values));
EXPECT_EQ(2384, zram_values[0]);
EXPECT_EQ(56696, zram_values[1]);
EXPECT_EQ(79, zram_values[2]);
int64_t mem_values[2];
EXPECT_TRUE(ParseStatFile(OpenTestStatFile("proc_meminfo").get(),
ArcSystemStatCollector::kMemInfoColumns,
mem_values));
EXPECT_EQ(8058940, mem_values[0]);
EXPECT_EQ(2714260, mem_values[1]);
int64_t gem_values[2];
EXPECT_TRUE(ParseStatFile(OpenTestStatFile("gem_objects").get(),
ArcSystemStatCollector::kGemInfoColumns,
gem_values));
EXPECT_EQ(853, gem_values[0]);
EXPECT_EQ(458256384, gem_values[1]);
int64_t cpu_temp;
EXPECT_TRUE(ParseStatFile(OpenTestStatFile("temp1_input").get(),
ArcSystemStatCollector::kOneValueColumns,
&cpu_temp));
EXPECT_EQ(52000, cpu_temp);
}
TEST_F(ArcSystemStatCollectorTest, Serialize) {
base::FilePath base_path;
base::PathService::Get(chrome::DIR_TEST_DATA, &base_path);
const base::FilePath path =
base_path.Append("arc_overview_tracing").Append("system_stat_collector");
std::string json_content;
ASSERT_TRUE(base::ReadFileToString(path, &json_content));
ArcSystemStatCollector collector;
ASSERT_TRUE(collector.LoadFromJson(json_content));
const std::string json_content_restored = collector.SerializeToJson();
ASSERT_TRUE(!json_content_restored.empty());
std::optional<base::Value> root = base::JSONReader::Read(json_content);
ASSERT_TRUE(root);
std::optional<base::Value> root_restored =
base::JSONReader::Read(json_content_restored);
ASSERT_TRUE(root_restored);
EXPECT_EQ(*root, *root_restored);
}
} // namespace arc
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