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source: branches/2913_MatlabScriptProblemInstanceProvider/HeuristicLab.Tests/HeuristicLab.Encodings.RealVectorEncoding-3.3/BlendAlphaCrossoverTest.cs @ 16124

Last change on this file since 16124 was 15583, checked in by swagner, 7 years ago

#2640: Updated year of copyrights in license headers

File size: 4.2 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Data;
23using HeuristicLab.Tests;
24using Microsoft.VisualStudio.TestTools.UnitTesting;
25
26namespace HeuristicLab.Encodings.RealVectorEncoding.Tests {
27  /// <summary>
28  ///This is a test class for BlendAlphaCrossoverTest and is intended
29  ///to contain all BlendAlphaCrossoverTest Unit Tests
30  ///</summary>
31  [TestClass()]
32  public class BlendAlphaCrossoverTest {
33    /// <summary>
34    ///A test for Apply
35    ///</summary>
36    [TestMethod()]
37    [TestCategory("Encodings.RealVector")]
38    [TestProperty("Time", "short")]
39    public void BlendAlphaCrossoverApplyTest() {
40      TestRandom random = new TestRandom();
41      RealVector parent1, parent2, expected, actual;
42      DoubleValue alpha;
43      bool exceptionFired;
44      // The following test is not based on published examples
45      random.Reset();
46      random.DoubleNumbers = new double[] { 0.5, 0.5, 0.5, 0.5, 0.5 };
47      alpha = new DoubleValue(0.5);
48      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
49      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
50      expected = new RealVector(new double[] { 0.3, 0.15, 0.3, 0.35, 0.45 });
51      actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
52      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
53      // The following test is not based on published examples
54      random.Reset();
55      random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25 };
56      alpha = new DoubleValue(0.25);
57      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
58      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
59      expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
60      actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
61      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
62      // The following test is not based on published examples
63      random.Reset();
64      random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25 };
65      alpha = new DoubleValue(-0.25); // negative values for alpha are not allowed
66      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
67      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
68      expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
69      exceptionFired = false;
70      try {
71        actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
72      }
73      catch (System.ArgumentException) {
74        exceptionFired = true;
75      }
76      Assert.IsTrue(exceptionFired);
77      // The following test is not based on published examples
78      random.Reset();
79      random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25, .75 };
80      alpha = new DoubleValue(0.25);
81      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
82      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
83      expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
84      exceptionFired = false;
85      try {
86        actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
87      }
88      catch (System.ArgumentException) {
89        exceptionFired = true;
90      }
91      Assert.IsTrue(exceptionFired);
92    }
93  }
94}
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