1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.IO;
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25 | using System.Linq;
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26 | using System.Reflection;
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27 | using System.Text;
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28 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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29 |
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30 | namespace HeuristicLab.Problems.QuadraticAssignment.Tests_33 {
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31 | [TestClass]
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32 | public class QAPLIBInstancesTest {
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33 | private static string InstancePrefix = "HeuristicLab.Tests.HeuristicLab.Problems.QuadraticAssignment_3._3.QAPLIB.";
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34 |
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35 | private IEnumerable<string> EmbeddedInstances {
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36 | get {
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37 | return Assembly.GetExecutingAssembly()
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38 | .GetManifestResourceNames()
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39 | .Where(x => x.EndsWith(".dat"))
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40 | .OrderBy(x => x)
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41 | .Select(x => x.Replace(".dat", String.Empty))
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42 | .Select(x => x.Replace(InstancePrefix, String.Empty));
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43 | }
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44 | }
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45 |
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46 | [TestMethod]
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47 | public void TestQAPLIBInstances() {
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48 | var qap = new QuadraticAssignmentProblem();
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49 | var failedInstances = new StringBuilder();
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50 | string tempPath = Path.GetTempPath();
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51 |
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52 | Assert.IsTrue(EmbeddedInstances.Any(), "No instances could be found.");
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53 |
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54 | foreach (string instance in EmbeddedInstances) {
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55 | WriteEmbeddedResourceToFile(InstancePrefix + instance + ".dat", File.Create(Path.Combine(tempPath, "instance.dat")));
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56 |
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57 | bool solutionExists = Assembly.GetExecutingAssembly().GetManifestResourceNames().Any(x => x == InstancePrefix + instance + ".sln");
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58 | if (solutionExists)
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59 | WriteEmbeddedResourceToFile(InstancePrefix + instance + ".sln", File.Create(Path.Combine(tempPath, "instance.sln")));
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60 |
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61 | try {
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62 | qap.LoadInstanceFromFile(Path.Combine(tempPath, "instance.dat"));
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63 | } catch (Exception ex) {
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64 | failedInstances.AppendLine(instance + ": " + ex.Message);
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65 | solutionExists = false; // not necessary to test solution as well
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66 | }
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67 |
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68 | if (solutionExists) {
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69 | try {
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70 | qap.LoadInstanceFromFile(Path.Combine(tempPath, "instance.dat"), Path.Combine(tempPath, "instance.sln"));
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71 | if (qap.BestKnownSolution == null)
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72 | failedInstances.AppendLine(instance + " (sln): Given solution and reported quality cannot be reproduced.");
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73 | } catch (Exception ex) {
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74 | failedInstances.AppendLine(instance + " (+sln):" + ex.Message);
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75 | }
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76 | }
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77 | }
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78 | Assert.IsTrue(failedInstances.Length == 0, "Following instances failed: " + Environment.NewLine + failedInstances.ToString());
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79 | }
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80 |
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81 | private void WriteEmbeddedResourceToFile(string resource, FileStream file) {
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82 | try {
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83 | using (Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resource)) {
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84 | int token;
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85 | while ((token = stream.ReadByte()) >= 0) {
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86 | file.WriteByte((byte)token);
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87 | }
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88 | }
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89 | } finally { file.Close(); }
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90 | }
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91 | }
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92 | }
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