[3742] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[11170] | 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3742] | 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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[4068] | 22 | using HeuristicLab.Core;
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| 23 | using HeuristicLab.Data;
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[6891] | 24 | using HeuristicLab.Tests;
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[2936] | 25 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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| 26 |
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[9885] | 27 | namespace HeuristicLab.Encodings.RealVectorEncoding.Tests {
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[2936] | 28 | /// <summary>
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| 29 | ///This is a test class for SimulatedBinaryCrossoverTest and is intended
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| 30 | ///to contain all SimulatedBinaryCrossoverTest Unit Tests
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| 31 | ///</summary>
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| 32 | [TestClass()]
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| 33 | public class SimulatedBinaryCrossoverTest {
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| 34 | /// <summary>
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| 35 | ///A test for Cross
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| 36 | ///</summary>
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| 37 | [TestMethod()]
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[9885] | 38 | [TestCategory("Encodings.RealVector")]
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| 39 | [TestProperty("Time", "short")]
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[2936] | 40 | public void SimulatedBinaryCrossoverCrossTest() {
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| 41 | SimulatedBinaryCrossover_Accessor target = new SimulatedBinaryCrossover_Accessor(new PrivateObject(typeof(SimulatedBinaryCrossover)));
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[3060] | 42 | ItemArray<RealVector> parents;
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[2936] | 43 | TestRandom random = new TestRandom();
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| 44 | bool exceptionFired;
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| 45 | // The following test checks if there is an exception when there are more than 2 parents
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| 46 | random.Reset();
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[3060] | 47 | parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(5), new RealVector(6), new RealVector(4) });
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[2936] | 48 | exceptionFired = false;
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| 49 | try {
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[3060] | 50 | RealVector actual;
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[2936] | 51 | actual = target.Cross(random, parents);
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[4872] | 52 | } catch (System.ArgumentException) {
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[2936] | 53 | exceptionFired = true;
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| 54 | }
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| 55 | Assert.IsTrue(exceptionFired);
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| 56 | // The following test checks if there is an exception when there are less than 2 parents
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| 57 | random.Reset();
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[3060] | 58 | parents = new ItemArray<RealVector>(new RealVector[] { new RealVector(4) });
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[2936] | 59 | exceptionFired = false;
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| 60 | try {
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[3060] | 61 | RealVector actual;
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[2936] | 62 | actual = target.Cross(random, parents);
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[4872] | 63 | } catch (System.ArgumentException) {
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[2936] | 64 | exceptionFired = true;
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| 65 | }
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| 66 | Assert.IsTrue(exceptionFired);
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| 67 | }
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| 68 |
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| 69 | /// <summary>
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| 70 | ///A test for Apply
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| 71 | ///</summary>
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| 72 | [TestMethod()]
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[9885] | 73 | [TestCategory("Encodings.RealVector")]
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| 74 | [TestProperty("Time", "short")]
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[2936] | 75 | public void SimulatedBinaryCrossoverApplyTest() {
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| 76 | TestRandom random = new TestRandom();
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[3060] | 77 | RealVector parent1, parent2, expected, actual;
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[3048] | 78 | DoubleValue contiguity;
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[2936] | 79 | bool exceptionFired;
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| 80 | // The following test is not based on published examples
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| 81 | random.Reset();
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| 82 | random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
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[3048] | 83 | contiguity = new DoubleValue(0.3);
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[3060] | 84 | parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
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| 85 | parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
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[4872] | 86 | expected = new RealVector(new double[] { 0.644880972204315, 0.0488239539275703, 0.3, 0.5, 0.1 });
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[2936] | 87 | actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
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[3061] | 88 | Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
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[2936] | 89 | // The following test is not based on published examples
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| 90 | random.Reset();
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| 91 | random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
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[3048] | 92 | contiguity = new DoubleValue(0.3);
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[3060] | 93 | parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
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| 94 | parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
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[2936] | 95 | exceptionFired = false;
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| 96 | try {
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| 97 | actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
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[4872] | 98 | } catch (System.ArgumentException) {
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[2936] | 99 | exceptionFired = true;
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| 100 | }
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| 101 | Assert.IsTrue(exceptionFired);
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| 102 | // The following test is not based on published examples
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| 103 | random.Reset();
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| 104 | random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
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[3048] | 105 | contiguity = new DoubleValue(-0.3); // contiguity < 0
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[4068] | 106 | parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
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[3060] | 107 | parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
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[2936] | 108 | exceptionFired = false;
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| 109 | try {
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| 110 | actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
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[4872] | 111 | } catch (System.ArgumentException) {
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[2936] | 112 | exceptionFired = true;
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| 113 | }
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| 114 | Assert.IsTrue(exceptionFired);
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| 115 | }
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| 116 | }
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| 117 | }
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