[14341] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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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| 22 | using System.Linq;
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| 23 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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| 24 |
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| 25 | namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Tests {
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| 26 | [TestClass]
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| 27 | public class GrammarsTest {
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| 28 | [TestMethod]
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| 29 | [TestCategory("Encodings.SymbolicExpressionTree")]
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| 30 | [TestProperty("Time", "short")]
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| 31 | public void MinimumExpressionLengthTest() {
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| 32 | var grammar = CreateAbstractGrammar();
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| 33 |
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| 34 | var prs = grammar.ProgramRootSymbol;
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| 35 | var a = grammar.Symbols.First(s => s.Name == "<a>");
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| 36 | var b = grammar.Symbols.First(s => s.Name == "<b>");
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| 37 |
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| 38 | Assert.AreEqual(4, grammar.GetMinimumExpressionLength(prs));
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| 39 | Assert.AreEqual(4, grammar.GetMinimumExpressionLength(a));
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| 40 | Assert.AreEqual(3, grammar.GetMinimumExpressionLength(b));
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| 41 | }
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| 42 |
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| 43 | [TestMethod]
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| 44 | [TestCategory("Encodings.SymbolicExpressionTree")]
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| 45 | [TestProperty("Time", "short")]
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| 46 | public void MinimumExpressionDepthTest() {
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| 47 | var grammar = CreateAbstractGrammar();
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| 48 |
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| 49 | var prs = grammar.ProgramRootSymbol;
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| 50 | var a = grammar.Symbols.First(s => s.Name == "<a>");
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| 51 | var b = grammar.Symbols.First(s => s.Name == "<b>");
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| 52 |
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| 53 | Assert.AreEqual(4, grammar.GetMinimumExpressionDepth(prs));
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| 54 | Assert.AreEqual(4, grammar.GetMinimumExpressionDepth(a));
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| 55 | Assert.AreEqual(3, grammar.GetMinimumExpressionDepth(b));
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| 56 | }
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| 57 |
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| 58 | private static ISymbolicExpressionGrammar CreateAbstractGrammar() {
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| 59 | var grammar = new SimpleSymbolicExpressionGrammar();
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| 60 | var x = new SimpleSymbol("<x>", 1);
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| 61 | var s = new SimpleSymbol("<s>", 1);
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| 62 | var a = new SimpleSymbol("<a>", 1);
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| 63 | var b = new SimpleSymbol("<b>", 1);
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| 64 | var c = new SimpleSymbol("<c>", 1);
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| 65 | var d = new SimpleSymbol("<d>", 1);
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| 66 | var e = new SimpleSymbol("<e>", 1);
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| 67 |
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| 68 | var _x = new SimpleSymbol("x", 0);
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| 69 | var _y = new SimpleSymbol("y", 0);
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| 70 |
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| 71 | grammar.AddSymbol(x);
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| 72 | grammar.AddSymbol(s);
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| 73 | grammar.AddSymbol(a);
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| 74 | grammar.AddSymbol(b);
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| 75 | grammar.AddSymbol(c);
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| 76 | grammar.AddSymbol(d);
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| 77 | grammar.AddSymbol(e);
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| 78 | grammar.AddSymbol(_x);
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| 79 | grammar.AddSymbol(_y);
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| 80 |
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| 81 | grammar.AddAllowedChildSymbol(grammar.StartSymbol, x);
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| 82 | grammar.AddAllowedChildSymbol(x, s);
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| 83 | grammar.AddAllowedChildSymbol(x, _x);
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| 84 | grammar.AddAllowedChildSymbol(s, a);
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| 85 | grammar.AddAllowedChildSymbol(a, b);
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| 86 | grammar.AddAllowedChildSymbol(a, c);
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| 87 | grammar.AddAllowedChildSymbol(b, x);
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| 88 | grammar.AddAllowedChildSymbol(c, d);
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| 89 | grammar.AddAllowedChildSymbol(d, e);
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| 90 | grammar.AddAllowedChildSymbol(e, _y);
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| 91 |
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| 92 | return grammar;
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| 93 | }
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| 94 | }
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| 95 | }
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