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0001 // ct_lvtshr_fuzzyutil.t.cpp                                          -*-C++-*-
0002 
0003 /*
0004 // Copyright 2023 Codethink Ltd <codethink@codethink.co.uk>
0005 // SPDX-License-Identifier: Apache-2.0
0006 //
0007 // Licensed under the Apache License, Version 2.0 (the "License");
0008 // you may not use this file except in compliance with the License.
0009 // You may obtain a copy of the License at
0010 //
0011 //     http://www.apache.org/licenses/LICENSE-2.0
0012 //
0013 // Unless required by applicable law or agreed to in writing, software
0014 // distributed under the License is distributed on an "AS IS" BASIS,
0015 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0016 // See the License for the specific language governing permissions and
0017 // limitations under the License.
0018 */
0019 
0020 #include <ct_lvtshr_fuzzyutil.h>
0021 
0022 #include <array>
0023 #include <string>
0024 #include <tuple>
0025 #include <utility>
0026 
0027 #include <catch2-local-includes.h>
0028 
0029 using Codethink::lvtshr::FuzzyUtil;
0030 
0031 TEST_CASE("Fuzzy util")
0032 {
0033     using TestCase = std::tuple<std::string, std::string, size_t>;
0034 
0035     static const std::array<TestCase, 11> tests = {TestCase{"", "", 0},
0036                                                    TestCase{"a", "", 1},
0037                                                    TestCase{"", "a", 1},
0038                                                    TestCase{"kitten", "sitting", 3},
0039                                                    TestCase{"12", "", 2},
0040                                                    TestCase{"akitten", "asitting", 3},
0041                                                    TestCase{"akitten", "sitting", 4},
0042                                                    TestCase{"kitten", "asitting", 4},
0043                                                    TestCase{"pkg", "package", 4},
0044                                                    TestCase{"book", "back", 2},
0045                                                    TestCase{"apple", "jklfdas", 7}};
0046 
0047     for (const auto& test : tests) {
0048         const auto& lhs = std::get<0>(test);
0049         const auto& rhs = std::get<1>(test);
0050         const auto expDist = std::get<2>(test);
0051         const auto dist = FuzzyUtil::levensteinDistance(lhs, rhs);
0052         CHECK(expDist == dist);
0053     }
0054 }