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rocksdb/utilities/merge_operators/cassandra/cassandra_merge_test.cc

134 lines
3.8 KiB

// Copyright (c) 2017-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
// This source code is also licensed under the GPLv2 license found in the
// COPYING file in the root directory of this source tree.
#include <iostream>
#include "rocksdb/db.h"
#include "rocksdb/merge_operator.h"
#include "rocksdb/utilities/db_ttl.h"
#include "util/testharness.h"
#include "util/random.h"
#include "utilities/merge_operators.h"
#include "utilities/merge_operators/cassandra/merge_operator.h"
#include "utilities/merge_operators/cassandra/test_utils.h"
using namespace rocksdb;
namespace rocksdb {
namespace cassandra {
// Path to the database on file system
const std::string kDbName = test::TmpDir() + "/cassandramerge_test";
class CassandraStore {
public:
explicit CassandraStore(std::shared_ptr<DB> db)
: db_(db),
merge_option_(),
get_option_() {
assert(db);
}
bool Append(const std::string& key, const RowValue& val){
std::string result;
val.Serialize(&result);
Slice valSlice(result.data(), result.size());
auto s = db_->Merge(merge_option_, key, valSlice);
if (s.ok()) {
return true;
} else {
std::cerr << "ERROR " << s.ToString() << std::endl;
return false;
}
}
std::tuple<bool, RowValue> Get(const std::string& key){
std::string result;
auto s = db_->Get(get_option_, key, &result);
if (s.ok()) {
return std::make_tuple(true,
RowValue::Deserialize(result.data(),
result.size()));
}
if (!s.IsNotFound()) {
std::cerr << "ERROR " << s.ToString() << std::endl;
}
return std::make_tuple(false, RowValue(0, 0));
}
private:
std::shared_ptr<DB> db_;
WriteOptions merge_option_;
ReadOptions get_option_;
};
// The class for unit-testing
class CassandraMergeTest : public testing::Test {
public:
CassandraMergeTest() {
DestroyDB(kDbName, Options()); // Start each test with a fresh DB
}
std::shared_ptr<DB> OpenDb() {
DB* db;
Options options;
options.create_if_missing = true;
options.merge_operator.reset(new CassandraValueMergeOperator());
EXPECT_OK(DB::Open(options, kDbName, &db));
return std::shared_ptr<DB>(db);
}
};
// THE TEST CASES BEGIN HERE
TEST_F(CassandraMergeTest, SimpleTest) {
auto db = OpenDb();
CassandraStore store(db);
store.Append("k1", CreateTestRowValue({
std::make_tuple(kTombstone, 0, 5),
std::make_tuple(kColumn, 1, 8),
std::make_tuple(kExpiringColumn, 2, 5),
}));
store.Append("k1",CreateTestRowValue({
std::make_tuple(kColumn, 0, 2),
std::make_tuple(kExpiringColumn, 1, 5),
std::make_tuple(kTombstone, 2, 7),
std::make_tuple(kExpiringColumn, 7, 17),
}));
store.Append("k1", CreateTestRowValue({
std::make_tuple(kExpiringColumn, 0, 6),
std::make_tuple(kTombstone, 1, 5),
std::make_tuple(kColumn, 2, 4),
std::make_tuple(kTombstone, 11, 11),
}));
auto ret = store.Get("k1");
ASSERT_TRUE(std::get<0>(ret));
RowValue& merged = std::get<1>(ret);
EXPECT_EQ(merged.columns_.size(), 5);
VerifyRowValueColumns(merged.columns_, 0, kExpiringColumn, 0, 6);
VerifyRowValueColumns(merged.columns_, 1, kColumn, 1, 8);
VerifyRowValueColumns(merged.columns_, 2, kTombstone, 2, 7);
VerifyRowValueColumns(merged.columns_, 3, kExpiringColumn, 7, 17);
VerifyRowValueColumns(merged.columns_, 4, kTombstone, 11, 11);
}
} // namespace cassandra
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}