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source: trunk/sources/HeuristicLab.Tests/HeuristicLab.Encodings.RealVectorEncoding-3.3/SinglePointCrossoverTest.cs @ 10306

Last change on this file since 10306 was 9777, checked in by abeham, 11 years ago

#2088: Added test attributes and cleaned up tests of the encodings

File size: 5.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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 SinglePointCrossoverTest and is intended
29  ///to contain all SinglePointCrossoverTest Unit Tests
30  ///</summary>
31  [TestClass()]
32  public class SinglePointCrossoverTest {
33    /// <summary>
34    ///A test for Cross
35    ///</summary>
36    [TestMethod()]
37    [TestCategory("Encodings.RealVector")]
38    [TestProperty("Time", "short")]
39    public void SinglePointCrossoverCrossTest() {
40      SinglePointCrossover_Accessor target = new SinglePointCrossover_Accessor(new PrivateObject(typeof(SinglePointCrossover)));
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 more than 2 parents
45      random.Reset();
46      parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(5), new RealVector(6), 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      // The following test checks if there is an exception when there are less than 2 parents
56      random.Reset();
57      parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(4) });
58      exceptionFired = false;
59      try {
60        RealVector actual;
61        actual = target.Cross(random, parents);
62      } catch (System.ArgumentException) {
63        exceptionFired = true;
64      }
65      Assert.IsTrue(exceptionFired);
66      // The following test checks if there is an exception when the vector has just one dimension
67      random.Reset();
68      parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(1) });
69      exceptionFired = false;
70      try {
71        RealVector actual;
72        actual = target.Cross(random, parents);
73      } catch (System.ArgumentException) {
74        exceptionFired = true;
75      }
76      Assert.IsTrue(exceptionFired);
77    }
78
79    /// <summary>
80    ///A test for Apply
81    ///</summary>
82    [TestMethod()]
83    [TestCategory("Encodings.RealVector")]
84    [TestProperty("Time", "short")]
85    public void SinglePointCrossoverApplyTest() {
86      TestRandom random = new TestRandom();
87      RealVector parent1, parent2, expected, actual;
88      bool exceptionFired;
89      // The following test is not based on published examples
90      random.Reset();
91      random.IntNumbers = new int[] { 3 };
92      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
93      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
94      expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.2, 0.8 });
95      actual = SinglePointCrossover.Apply(random, parent1, parent2);
96      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
97      // The following test is not based on published examples
98      random.Reset();
99      random.IntNumbers = new int[] { 2 };
100      parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
101      parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
102      exceptionFired = false;
103      try {
104        actual = SinglePointCrossover.Apply(random, parent1, parent2);
105      } catch (System.ArgumentException) {
106        exceptionFired = true;
107      }
108      Assert.IsTrue(exceptionFired);
109      // The following test is not based on published examples
110      random.Reset();
111      random.IntNumbers = new int[] { 5 }; // should not have an effect
112      parent1 = new RealVector(new double[] { 0.2, 0.4 });
113      parent2 = new RealVector(new double[] { 0.6, 0.1 });
114      expected = new RealVector(new double[] { 0.2, 0.1 });
115      actual = SinglePointCrossover.Apply(random, parent1, parent2);
116      Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
117      // The following test is not based on published examples
118    }
119  }
120}
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