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rocksdb/table/sst_file_reader_test.cc

99 lines
2.6 KiB

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#ifndef ROCKSDB_LITE
#include <inttypes.h>
#include "rocksdb/sst_file_reader.h"
#include "rocksdb/sst_file_writer.h"
#include "util/testharness.h"
#include "util/testutil.h"
#include "utilities/merge_operators.h"
namespace rocksdb {
std::string EncodeAsString(uint64_t v) {
char buf[16];
snprintf(buf, sizeof(buf), "%08" PRIu64, v);
return std::string(buf);
}
std::string EncodeAsUint64(uint64_t v) {
std::string dst;
PutFixed64(&dst, v);
return dst;
}
class SstFileReaderTest : public testing::Test {
public:
SstFileReaderTest() {
options_.merge_operator = MergeOperators::CreateUInt64AddOperator();
sst_name_ = test::PerThreadDBPath("sst_file");
}
void CreateFileAndCheck(const std::vector<std::string>& keys) {
SstFileWriter writer(soptions_, options_);
ASSERT_OK(writer.Open(sst_name_));
for (size_t i = 0; i + 2 < keys.size(); i += 3) {
ASSERT_OK(writer.Put(keys[i], keys[i]));
ASSERT_OK(writer.Merge(keys[i+1], EncodeAsUint64(i+1)));
ASSERT_OK(writer.Delete(keys[i+2]));
}
ASSERT_OK(writer.Finish());
ReadOptions ropts;
SstFileReader reader(options_);
ASSERT_OK(reader.Open(sst_name_));
ASSERT_OK(reader.VerifyChecksum());
std::unique_ptr<Iterator> iter(reader.NewIterator(ropts));
iter->SeekToFirst();
for (size_t i = 0; i + 2 < keys.size(); i += 3) {
ASSERT_TRUE(iter->Valid());
ASSERT_EQ(iter->key().compare(keys[i]), 0);
ASSERT_EQ(iter->value().compare(keys[i]), 0);
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_EQ(iter->key().compare(keys[i+1]), 0);
ASSERT_EQ(iter->value().compare(EncodeAsUint64(i+1)), 0);
iter->Next();
}
ASSERT_FALSE(iter->Valid());
}
protected:
Options options_;
EnvOptions soptions_;
std::string sst_name_;
};
const uint64_t kNumKeys = 100;
TEST_F(SstFileReaderTest, Basic) {
std::vector<std::string> keys;
for (uint64_t i = 0; i < kNumKeys; i++) {
keys.emplace_back(EncodeAsString(i));
}
CreateFileAndCheck(keys);
}
TEST_F(SstFileReaderTest, Uint64Comparator) {
options_.comparator = test::Uint64Comparator();
std::vector<std::string> keys;
for (uint64_t i = 0; i < kNumKeys; i++) {
keys.emplace_back(EncodeAsUint64(i));
}
CreateFileAndCheck(keys);
}
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#endif // ROCKSDB_LITE