1f2dca0eaa
Summary: Introduce MaxOperator a simple merge operator that return the max of all operands. This merge operand help me in benchmarking Test Plan: Add new unitttests Reviewers: sdong, andrewkr, yhchiang Reviewed By: yhchiang Subscribers: andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D57873
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
// Copyright (c) 2011-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.
|
|
|
|
#include "util/testharness.h"
|
|
#include "util/testutil.h"
|
|
#include "utilities/merge_operators.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class UtilMergeOperatorTest : public testing::Test {
|
|
public:
|
|
UtilMergeOperatorTest() {}
|
|
|
|
std::string FullMerge(std::string existing_value,
|
|
std::deque<std::string> operands,
|
|
std::string key = "") {
|
|
Slice existing_value_slice(existing_value);
|
|
std::string result;
|
|
|
|
merge_operator_->FullMerge(key, &existing_value_slice, operands, &result,
|
|
nullptr);
|
|
return result;
|
|
}
|
|
|
|
std::string FullMerge(std::deque<std::string> operands,
|
|
std::string key = "") {
|
|
std::string result;
|
|
|
|
merge_operator_->FullMerge(key, nullptr, operands, &result, nullptr);
|
|
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", FullMerge("B", {"A"}));
|
|
EXPECT_EQ("B", FullMerge("A", {"B"}));
|
|
EXPECT_EQ("", FullMerge({"", "", ""}));
|
|
EXPECT_EQ("A", FullMerge({"A"}));
|
|
EXPECT_EQ("ABC", FullMerge({"ABC"}));
|
|
EXPECT_EQ("Z", FullMerge({"ABC", "Z", "C", "AXX"}));
|
|
EXPECT_EQ("ZZZ", FullMerge({"ABC", "CC", "Z", "ZZZ"}));
|
|
EXPECT_EQ("a", FullMerge("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();
|
|
}
|