mirror of https://github.com/facebook/rocksdb.git
100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
// 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).
|
|
|
|
#include "test_util/testharness.h"
|
|
#include "test_util/testutil.h"
|
|
#include "utilities/merge_operators.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class UtilMergeOperatorTest : public testing::Test {
|
|
public:
|
|
UtilMergeOperatorTest() {}
|
|
|
|
std::string FullMergeV2(std::string existing_value,
|
|
std::vector<std::string> operands,
|
|
std::string key = "") {
|
|
std::string result;
|
|
Slice result_operand(nullptr, 0);
|
|
|
|
Slice existing_value_slice(existing_value);
|
|
std::vector<Slice> operands_slice(operands.begin(), operands.end());
|
|
|
|
const MergeOperator::MergeOperationInput merge_in(
|
|
key, &existing_value_slice, operands_slice, nullptr);
|
|
MergeOperator::MergeOperationOutput merge_out(result, result_operand);
|
|
merge_operator_->FullMergeV2(merge_in, &merge_out);
|
|
|
|
if (result_operand.data()) {
|
|
result.assign(result_operand.data(), result_operand.size());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
std::string FullMergeV2(std::vector<std::string> operands,
|
|
std::string key = "") {
|
|
std::string result;
|
|
Slice result_operand(nullptr, 0);
|
|
|
|
std::vector<Slice> operands_slice(operands.begin(), operands.end());
|
|
|
|
const MergeOperator::MergeOperationInput merge_in(key, nullptr,
|
|
operands_slice, nullptr);
|
|
MergeOperator::MergeOperationOutput merge_out(result, result_operand);
|
|
merge_operator_->FullMergeV2(merge_in, &merge_out);
|
|
|
|
if (result_operand.data()) {
|
|
result.assign(result_operand.data(), result_operand.size());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
std::string PartialMerge(std::string left, std::string right,
|
|
std::string key = "") {
|
|
std::string result;
|
|
|
|
merge_operator_->PartialMerge(key, left, right, &result, nullptr);
|
|
return result;
|
|
}
|
|
|
|
std::string PartialMergeMulti(std::deque<std::string> operands,
|
|
std::string key = "") {
|
|
std::string result;
|
|
std::deque<Slice> operands_slice(operands.begin(), operands.end());
|
|
|
|
merge_operator_->PartialMergeMulti(key, operands_slice, &result, nullptr);
|
|
return result;
|
|
}
|
|
|
|
protected:
|
|
std::shared_ptr<MergeOperator> merge_operator_;
|
|
};
|
|
|
|
TEST_F(UtilMergeOperatorTest, MaxMergeOperator) {
|
|
merge_operator_ = MergeOperators::CreateMaxOperator();
|
|
|
|
EXPECT_EQ("B", FullMergeV2("B", {"A"}));
|
|
EXPECT_EQ("B", FullMergeV2("A", {"B"}));
|
|
EXPECT_EQ("", FullMergeV2({"", "", ""}));
|
|
EXPECT_EQ("A", FullMergeV2({"A"}));
|
|
EXPECT_EQ("ABC", FullMergeV2({"ABC"}));
|
|
EXPECT_EQ("Z", FullMergeV2({"ABC", "Z", "C", "AXX"}));
|
|
EXPECT_EQ("ZZZ", FullMergeV2({"ABC", "CC", "Z", "ZZZ"}));
|
|
EXPECT_EQ("a", FullMergeV2("a", {"ABC", "CC", "Z", "ZZZ"}));
|
|
|
|
EXPECT_EQ("z", PartialMergeMulti({"a", "z", "efqfqwgwew", "aaz", "hhhhh"}));
|
|
|
|
EXPECT_EQ("b", PartialMerge("a", "b"));
|
|
EXPECT_EQ("z", PartialMerge("z", "azzz"));
|
|
EXPECT_EQ("a", PartialMerge("a", ""));
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|