62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
// Copyright 2010-2025 Google LLC
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "ortools/sat/combine_solutions.h"
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#include <cstdint>
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#include <string>
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#include <vector>
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#include "gtest/gtest.h"
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#include "ortools/base/gmock.h"
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#include "ortools/base/parse_test_proto.h"
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#include "ortools/sat/model.h"
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#include "ortools/sat/synchronization.h"
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namespace operations_research {
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namespace sat {
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namespace {
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using ::google::protobuf::contrib::parse_proto::ParseTestProto;
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using ::testing::ElementsAre;
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using ::testing::Optional;
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TEST(CombineSolutionsTest, BasicTest) {
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const CpModelProto model = ParseTestProto(R"pb(
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variables { domain: [ 0, 1 ] }
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variables { domain: [ 0, 1 ] }
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variables { domain: [ 0, 1 ] }
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variables { domain: [ 0, 1 ] }
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objective {
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vars: [ 0, 1, 2, 3 ]
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coeffs: [ 1, 1, 1, 1 ]
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}
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)pb");
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const std::vector<int64_t> existing_solution = {1, 0, 0, 0};
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const std::vector<int64_t> base_solution = {0, 1, 0, 0};
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const std::vector<int64_t> new_solution = {0, 1, 1, 0};
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Model m;
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SharedResponseManager response_manager(&m);
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response_manager.NewSolution(existing_solution, "existing", nullptr);
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response_manager.NewSolution(base_solution, "base", nullptr);
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response_manager.NewSolution(new_solution, "new", nullptr);
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std::string solution_info;
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const auto combined_solution = FindCombinedSolution(
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model, new_solution, base_solution, &response_manager, &solution_info);
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EXPECT_THAT(combined_solution, Optional(ElementsAre(1, 0, 1, 0)));
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}
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} // namespace
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} // namespace sat
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} // namespace operations_research
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