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source: stable/HeuristicLab.Tests/HeuristicLab.Encodings.RealVectorEncoding-3.3/BlendAlphaBetaCrossoverTest.cs @ 15817

Last change on this file since 15817 was 15584, checked in by swagner, 7 years ago

#2640: Updated year of copyrights in license headers on stable

File size: 3.5 KB
Line 
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 BlendAlphaBetaCrossoverTest and is intended
29  ///to contain all BlendAlphaBetaCrossoverTest Unit Tests
30  ///</summary>
31  [TestClass()]
32  public class BlendAlphaBetaCrossoverTest {
33    /// <summary>
34    ///A test for Apply
35    ///</summary>
36    [TestMethod()]
37    [TestCategory("Encodings.RealVector")]
38    [TestProperty("Time", "short")]
39    public void BlendAlphaBetaCrossoverApplyTest() {
40      TestRandom random = new TestRandom();
41      RealVector parent1, parent2, expected, actual;
42      DoubleValue alpha;
43      DoubleValue beta;
44      bool exceptionFired;
45      // The following test is not based on published examples
46      random.Reset();
47      random.DoubleNumbers = new double[] { 0.5, 0.5, 0.5, 0.5, 0.5 };
48      alpha = new DoubleValue(0.5);
49      beta = new DoubleValue(0.5);
50      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
51      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
52      expected = new RealVector(new double[] { 0.3, 0.15, 0.3, 0.35, 0.45 });
53      actual = BlendAlphaBetaCrossover.Apply(random, parent1, parent2, alpha, beta);
54      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
55      // The following test is not based on published examples
56      random.Reset();
57      random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25 };
58      alpha = new DoubleValue(-0.25); // negative values for alpha are not allowed
59      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
60      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
61      exceptionFired = false;
62      try {
63        actual = BlendAlphaBetaCrossover.Apply(random, parent1, parent2, alpha, beta);
64      }
65      catch (System.ArgumentException) {
66        exceptionFired = true;
67      }
68      Assert.IsTrue(exceptionFired);
69      // The following test is not based on published examples
70      random.Reset();
71      random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25, .75 };
72      alpha = new DoubleValue(0.25);
73      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
74      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
75      exceptionFired = false;
76      try {
77        actual = BlendAlphaBetaCrossover.Apply(random, parent1, parent2, alpha, beta);
78      }
79      catch (System.ArgumentException) {
80        exceptionFired = true;
81      }
82      Assert.IsTrue(exceptionFired);
83    }
84  }
85}
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