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source: branches/2839_HiveProjectManagement/HeuristicLab.Tests/HeuristicLab.Encodings.LinearLinkageEncoding-3.4/ConversionsTest.cs @ 17277

Last change on this file since 17277 was 16057, checked in by jkarder, 6 years ago

#2839:

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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 System;
23using System.Linq;
24using HeuristicLab.Random;
25using Microsoft.VisualStudio.TestTools.UnitTesting;
26
27namespace HeuristicLab.Encodings.LinearLinkageEncoding.Tests {
28  [TestClass()]
29  public class ConversionsTest {
30    private readonly int[][] validForwardEncoding = new[]{
31      new int[0], new[] {0},
32      new[] {0, 1}, new[] {1, 1},
33      new[] {0, 1, 2}, new[] {1, 1, 2}, new[] {2, 1, 2},
34      new[] {0, 2, 2}, new[] {1, 2, 2},
35      new[] {0, 1, 2, 3}, new[] {1, 1, 2, 3}, new[] {2, 1, 2, 3}, new[] {3, 1, 2, 3},
36      new[] {0, 1, 3, 3}, new[] {1, 2, 2, 3}, new[] {2, 1, 3, 3}, new[] {3, 2, 2, 3},
37      new[] {0, 2, 2, 3}, new[] {1, 3, 2, 3},
38      new[] {0, 2, 3, 3}
39    };
40    private readonly int[][] invalidForwardEncoding = new[]{
41      new [] {-1}, new [] {1}, new [] {1, 0},
42      new [] {0, 0, 0}, new [] {0, 0, 1}, new [] {0, 0, 2},
43      new [] {0, 1, 0},
44      new [] {0, 2, 0}, new [] {0, 2, 1},
45      new [] {1, 0, 0}, new [] {1, 0, 1}, new [] {1, 0, 2},
46      new [] {1, 1, 0}, new [] {1, 1, 1},
47      new [] {1, 2, 0}, new [] {1, 2, 1},
48      new [] {2, 0, 0}, new [] {2, 0, 1}, new [] {2, 0, 2},
49      new [] {2, 1, 0}, new [] {2, 1, 1},
50      new [] {2, 2, 0}, new [] {2, 2, 1}, new [] {2, 2, 2},
51    };
52    private readonly int[][] invalidEndEncoding = new[]{
53      new [] {-1}, new [] {1}, new [] {1, 0},
54      new [] {0, 0, 1}, new [] {0, 0, 2},
55      new [] {0, 1, 0},
56      new [] {0, 2, 0}, new [] {0, 2, 1},
57      new [] {1, 0, 0}, new [] {1, 0, 1}, new [] {1, 0, 2},
58      new [] {1, 1, 0}, new [] {1, 1, 1},
59      new [] {1, 2, 0}, new [] {1, 2, 1},
60      new [] {2, 0, 0}, new [] {2, 0, 1}, new [] {2, 0, 2},
61      new [] {2, 1, 0}, new [] {2, 1, 1},
62      new [] {2, 2, 0}, new [] {2, 2, 1},
63    };
64
65    [TestMethod()]
66    [TestCategory("Encodings.LinearLinkage")]
67    [TestProperty("Time", "short")]
68    public void EndLinksRoundtripTest() {
69      foreach (var values in validForwardEncoding) {
70        var expected = LinearLinkage.FromForwardLinks(values);
71        var llee = expected.ToEndLinks();
72        var actual = LinearLinkage.FromEndLinks(llee);
73        Assert.IsTrue(Auxiliary.LinearLinkageIsEqualByPosition(expected, actual),
74          "[{0}] did not roundtrip successfully!", string.Join(", ", values));
75      }
76    }
77
78    [TestMethod()]
79    [TestCategory("Encodings.LinearLinkage")]
80    [TestProperty("Time", "short")]
81    public void GroupsRoundtripTest() {
82      foreach (var values in validForwardEncoding) {
83        var expected = LinearLinkage.FromForwardLinks(values);
84        var groups = expected.GetGroups();
85        var actual = LinearLinkage.FromGroups(expected.Length, groups);
86        Assert.IsTrue(Auxiliary.LinearLinkageIsEqualByPosition(expected, actual),
87          "[{0}] did not roundtrip successfully!", string.Join(", ", values));
88      }
89    }
90
91    [TestMethod()]
92    [TestCategory("Encodings.LinearLinkage")]
93    [TestProperty("Time", "short")]
94    public void InvalidForwardLinksTest() {
95      foreach (var values in invalidForwardEncoding) {
96        var isValid = true;
97        try {
98          var lle = LinearLinkage.FromForwardLinks(values);
99        } catch (ArgumentException e) {
100          isValid = false;
101        }
102        Assert.IsFalse(isValid, "[{0}] is invalid and should throw ArgumentException!", string.Join(", ", values));
103      }
104    }
105
106    [TestMethod()]
107    [TestCategory("Encodings.LinearLinkage")]
108    [TestProperty("Time", "short")]
109    public void InvalidEndLinksTest() {
110      foreach (var values in invalidEndEncoding) {
111        var isValid = true;
112        try {
113          var lle = LinearLinkage.FromEndLinks(values);
114        } catch (ArgumentException e) {
115          isValid = false;
116        }
117        Assert.IsFalse(isValid, "{0} should be invalid", string.Join(", ", values));
118      }
119    }
120
121    [TestMethod]
122    [TestCategory("Encodings.LinearLinkage")]
123    [TestProperty("Time", "short")]
124    public void ConvertFromLLEtoLLEe() {
125      var random = new MersenneTwister(42);
126      var lle = MaxGroupsLinearLinkageCreator.Apply(random, 32, 8);
127      Assert.IsTrue(lle.SequenceEqual(LinearLinkage.FromEndLinks(lle.ToEndLinks())));
128    }
129
130    [TestMethod]
131    [TestCategory("Encodings.LinearLinkage")]
132    [TestProperty("Time", "short")]
133    public void ConvertFromLLEtoLLEb() {
134      var random = new MersenneTwister(42);
135      var lle = MaxGroupsLinearLinkageCreator.Apply(random, 32, 8);
136      Assert.IsTrue(lle.SequenceEqual(LinearLinkage.FromBackLinks(lle.ToBackLinks())));
137    }
138  }
139}
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