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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 <gtest/gtest.h>
#include "environment.h"
#include "event_attr.h"
#include "event_fd.h"
#include "event_type.h"
#include "record.h"
#include "record_file.h"
using namespace PerfFileFormat;
class RecordFileTest : public ::testing::Test {
protected:
virtual void SetUp() {
filename = "temporary.record_file";
const EventType* event_type = EventTypeFactory::FindEventTypeByName("cpu-cycles");
event_attr = CreateDefaultPerfEventAttr(*event_type);
std::unique_ptr<EventFd> event_fd = EventFd::OpenEventFileForProcess(event_attr, getpid());
ASSERT_TRUE(event_fd != nullptr);
event_fds.push_back(std::move(event_fd));
}
std::string filename;
perf_event_attr event_attr;
std::vector<std::unique_ptr<EventFd>> event_fds;
};
TEST_F(RecordFileTest, smoke) {
// Write to a record file.
std::unique_ptr<RecordFileWriter> writer =
RecordFileWriter::CreateInstance(filename, event_attr, event_fds);
ASSERT_TRUE(writer != nullptr);
// Write Data section.
MmapRecord mmap_record;
mmap_record.header.type = PERF_RECORD_MMAP;
mmap_record.header.size = sizeof(mmap_record);
ASSERT_TRUE(writer->WriteData(mmap_record.BinaryFormat()));
ASSERT_TRUE(writer->Close());
// Read from a record file.
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(filename);
ASSERT_TRUE(reader != nullptr);
const FileHeader* file_header = reader->FileHeader();
ASSERT_TRUE(file_header != nullptr);
std::vector<const FileAttr*> attrs = reader->AttrSection();
ASSERT_EQ(1u, attrs.size());
ASSERT_EQ(0, memcmp(&attrs[0]->attr, &event_attr, sizeof(perf_event_attr)));
std::vector<uint64_t> ids = reader->IdsForAttr(attrs[0]);
ASSERT_EQ(1u, ids.size());
// Read and check data section.
std::vector<std::unique_ptr<const Record>> records = reader->DataSection();
ASSERT_EQ(1u, records.size());
ASSERT_EQ(mmap_record.header.type, records[0]->header.type);
ASSERT_TRUE(reader->Close());
}
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