source: branches/2839_HiveProjectManagement/HeuristicLab.Tests/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding-3.4/ReplaceBranchManipulationTest.cs @ 16057

Last change on this file since 16057 was 16057, checked in by jkarder, 2 years ago

#2839:

File size: 2.7 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 System;
23using System.Collections.Generic;
24using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
25using HeuristicLab.Random;
26using Microsoft.VisualStudio.TestTools.UnitTesting;
27
28namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Tests {
29  [TestClass]
30  public class ReplaceBranchManipulationTest {
31    private const int POPULATION_SIZE = 1000;
32    private const int MAX_TREE_LENGTH = 100;
33    private const int MAX_TREE_DEPTH = 10;
34
35    [TestMethod]
36    [TestCategory("Encodings.SymbolicExpressionTree")]
37    [TestProperty("Time", "long")]
38    public void ReplaceBranchManipulationDistributionsTest() {
39      SymbolicExpressionTreeStringFormatter formatter = new SymbolicExpressionTreeStringFormatter();
40      var trees = new List<ISymbolicExpressionTree>();
41      var grammar = Grammars.CreateArithmeticAndAdfGrammar();
42      var random = new MersenneTwister(31415);
43      for (int i = 0; i < POPULATION_SIZE; i++) {
44        var tree = ProbabilisticTreeCreator.Create(random, grammar, MAX_TREE_LENGTH, MAX_TREE_DEPTH);
45        SubroutineCreater.CreateSubroutine(random, tree, MAX_TREE_LENGTH, MAX_TREE_DEPTH, 3, 3);
46        string originalTree = formatter.Format(tree);
47        ReplaceBranchManipulation.ReplaceRandomBranch(random, tree, MAX_TREE_LENGTH, MAX_TREE_DEPTH);
48        string manipulatedTree = formatter.Format(tree);
49        Assert.IsFalse(originalTree == manipulatedTree);
50        Util.IsValid(tree);
51        trees.Add(tree);
52      }
53      Console.WriteLine("ReplaceBranchManipulation: " + Environment.NewLine +
54        Util.GetSizeDistributionString(trees, 105, 5) + Environment.NewLine +
55        Util.GetFunctionDistributionString(trees) + Environment.NewLine +
56        Util.GetNumberOfSubtreesDistributionString(trees) + Environment.NewLine +
57        Util.GetTerminalDistributionString(trees) + Environment.NewLine
58        );
59    }
60  }
61}
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