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source: stable/HeuristicLab.Tests/HeuristicLab.Encodings.RealVectorEncoding-3.3/DiscreteCrossoverTest.cs @ 13175

Last change on this file since 13175 was 12009, checked in by ascheibe, 10 years ago

#2212 updated copyright year

File size: 3.7 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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 HeuristicLab.Core;
23using HeuristicLab.Tests;
24using Microsoft.VisualStudio.TestTools.UnitTesting;
25
26namespace HeuristicLab.Encodings.RealVectorEncoding.Tests {
27  /// <summary>
28  ///This is a test class for DiscreteCrossoverTest and is intended
29  ///to contain all DiscreteCrossoverTest Unit Tests
30  ///</summary>
31  [TestClass()]
32  public class DiscreteCrossoverTest {
33    /// <summary>
34    ///A test for Cross
35    ///</summary>
36    [TestMethod()]
37    [TestCategory("Encodings.RealVector")]
38    [TestProperty("Time", "short")]
39    public void DiscreteCrossoverCrossTest() {
40      DiscreteCrossover_Accessor target = new DiscreteCrossover_Accessor(new PrivateObject(typeof(DiscreteCrossover)));
41      ItemArray<RealVector> parents;
42      TestRandom random = new TestRandom();
43      bool exceptionFired;
44      // The following test checks if there is an exception when there are less than 2 parents
45      random.Reset();
46      parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(4) });
47      exceptionFired = false;
48      try {
49        RealVector actual;
50        actual = target.Cross(random, parents);
51      } catch (System.ArgumentException) {
52        exceptionFired = true;
53      }
54      Assert.IsTrue(exceptionFired);
55    }
56
57    /// <summary>
58    ///A test for Apply
59    ///</summary>
60    [TestMethod()]
61    [TestCategory("Encodings.RealVector")]
62    [TestProperty("Time", "short")]
63    public void DiscreteCrossoverApplyTest() {
64      TestRandom random = new TestRandom();
65      RealVector parent1, parent2, expected, actual;
66      ItemArray<RealVector> parents;
67      bool exceptionFired;
68      // The following test is not based on published examples
69      random.Reset();
70      random.IntNumbers = new int[] { 0, 0, 1, 0, 1 };
71      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
72      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
73      parents = new ItemArray<RealVector>(new RealVector[] { parent1, parent2 });
74      expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.8 });
75      actual = DiscreteCrossover.Apply(random, parents);
76      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
77      // The following test is not based on published examples
78      random.Reset();
79      random.IntNumbers = new int[] { 0, 0, 1, 0, 1, 0 };
80      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
81      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
82      parents = new ItemArray<RealVector>(new RealVector[] { parent1, parent2 });
83      exceptionFired = false;
84      try {
85        actual = DiscreteCrossover.Apply(random, parents);
86      } catch (System.ArgumentException) {
87        exceptionFired = true;
88      }
89      Assert.IsTrue(exceptionFired);
90    }
91  }
92}
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