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source: trunk/HeuristicLab.Tests/HeuristicLab-3.3/Samples/ScatterSearchVRPSampleTest.cs @ 17403

Last change on this file since 17403 was 17180, checked in by swagner, 5 years ago

#2875: Removed years in copyrights

File size: 3.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System.IO;
23using System.Linq;
24using HEAL.Attic;
25using HeuristicLab.Algorithms.ScatterSearch;
26using HeuristicLab.Problems.Instances.VehicleRouting;
27using HeuristicLab.Problems.VehicleRouting;
28using Microsoft.VisualStudio.TestTools.UnitTesting;
29
30namespace HeuristicLab.Tests {
31  [TestClass]
32  public class ScatterSearchVRPSampleTest {
33    private const string SampleFileName = "SS_VRP";
34    private static readonly ProtoBufSerializer serializer = new ProtoBufSerializer();
35
36    [TestMethod]
37    [TestCategory("Samples.Create")]
38    [TestProperty("Time", "medium")]
39    public void CreateScatterSearchVRPSampleTest() {
40      var ss = CreateScatterSearchVRPSample();
41      string path = Path.Combine(SamplesUtils.SamplesDirectory, SampleFileName + SamplesUtils.SampleFileExtension);
42      serializer.Serialize(ss, path);
43    }
44
45    [TestMethod]
46    [TestCategory("Samples.Execute")]
47    [TestProperty("Time", "long")]
48    public void RunScatterSearchVRPSampleTest() {
49      var ss = CreateScatterSearchVRPSample();
50      ss.SetSeedRandomly.Value = false;
51      SamplesUtils.RunAlgorithm(ss);
52      Assert.AreEqual(828.93686694283383, SamplesUtils.GetDoubleResult(ss, "BestQuality"));
53      Assert.AreEqual(868.63623986983077, SamplesUtils.GetDoubleResult(ss, "CurrentAverageQuality"));
54      Assert.AreEqual(1048.8333559209832, SamplesUtils.GetDoubleResult(ss, "CurrentWorstQuality"));
55      Assert.AreEqual(262622, SamplesUtils.GetIntResult(ss, "EvaluatedSolutions"));
56    }
57
58    private ScatterSearch CreateScatterSearchVRPSample() {
59      #region Problem Configuration
60      var provider = new SolomonInstanceProvider();
61      var instance = provider.GetDataDescriptors().Single(x => x.Name == "C101");
62      VehicleRoutingProblem vrpProblem = new VehicleRoutingProblem();
63      vrpProblem.Load(provider.LoadData(instance));
64      #endregion
65
66      #region Algorithm Configuration
67      ScatterSearch ss = new ScatterSearch();
68      ss.Engine = new SequentialEngine.SequentialEngine();
69      ss.Name = "Scatter Search - VRP";
70      ss.Description = "A scatter search algorithm which solves the \"C101\" vehicle routing problem (imported from Solomon)";
71      ss.Problem = vrpProblem;
72
73      var improver = ss.Problem.Operators.OfType<VRPIntraRouteImprovementOperator>().First();
74      improver.ImprovementAttemptsParameter.Value.Value = 15;
75      improver.SampleSizeParameter.Value.Value = 10;
76      ss.Improver = improver;
77
78      var pathRelinker = ss.Problem.Operators.OfType<VRPPathRelinker>().First();
79      pathRelinker.IterationsParameter.Value.Value = 25;
80      ss.PathRelinker = pathRelinker;
81
82      var similarityCalculator = ss.SimilarityCalculatorParameter.ValidValues.OfType<VRPSimilarityCalculator>().First();
83      ss.SimilarityCalculator = similarityCalculator;
84
85      ss.MaximumIterations.Value = 2;
86      ss.PopulationSize.Value = 20;
87      ss.ReferenceSetSize.Value = 10;
88      ss.Seed.Value = 0;
89      return ss;
90      #endregion
91    }
92  }
93}
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