1 | using System;
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2 | using System.Linq;
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3 | using System.Collections.Generic;
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4 | using System.Globalization;
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5 | using HeuristicLab.Algorithms.Bandits;
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6 | using Microsoft.VisualStudio.TestTools.UnitTesting;
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7 |
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8 | namespace HeuristicLab.Problems.GrammaticalOptimization.Test {
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9 | [TestClass]
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10 | public class TestSequence {
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11 |
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12 | [TestMethod]
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13 | public void TestCtorAndProperties() {
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14 | CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
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15 | {
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16 | var s = new Sequence("A");
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17 | Assert.AreEqual(1, s.Length);
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18 | Assert.AreEqual(false, s.IsTerminal);
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19 | Assert.AreEqual(0, s.FirstNonTerminalIndex);
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20 | Assert.AreEqual('A', s.FirstNonTerminal);
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21 | }
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22 | {
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23 | var s = new Sequence("AB");
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24 | Assert.AreEqual(2, s.Length);
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25 | Assert.AreEqual(false, s.IsTerminal);
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26 | Assert.AreEqual(0, s.FirstNonTerminalIndex);
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27 | Assert.AreEqual('A', s.FirstNonTerminal);
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28 | }
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29 | {
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30 | var s = new Sequence("aAB");
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31 | Assert.AreEqual(3, s.Length);
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32 | Assert.AreEqual(false, s.IsTerminal);
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33 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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34 | Assert.AreEqual('A', s.FirstNonTerminal);
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35 | }
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36 | {
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37 | var s = new Sequence("aaaaA");
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38 | Assert.AreEqual(5, s.Length);
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39 | Assert.AreEqual(false, s.IsTerminal);
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40 | Assert.AreEqual(4, s.FirstNonTerminalIndex);
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41 | Assert.AreEqual('A', s.FirstNonTerminal);
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42 | }
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43 | {
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44 | var s = new Sequence("aaaa");
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45 | Assert.AreEqual(4, s.Length);
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46 | Assert.AreEqual(true, s.IsTerminal);
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47 | Assert.AreEqual(-1, s.FirstNonTerminalIndex);
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48 | try {
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49 | var nt = s.FirstNonTerminal;
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50 | Assert.Fail();
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51 | }
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52 | catch (IndexOutOfRangeException e) {
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53 | }
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54 | }
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55 | {
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56 | var s = new Sequence("aaaaA");
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57 | var t = new Sequence(s);
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58 | Assert.AreEqual(5, t.Length);
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59 | Assert.AreEqual(false, t.IsTerminal);
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60 | Assert.AreEqual(4, t.FirstNonTerminalIndex);
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61 | Assert.AreEqual('A', t.FirstNonTerminal);
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62 |
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63 | t.ReplaceAt(0, 1, new Sequence("Z"));
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64 | Assert.AreEqual(5, t.Length);
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65 | Assert.AreEqual(false, t.IsTerminal);
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66 | Assert.AreEqual(0, t.FirstNonTerminalIndex);
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67 | Assert.AreEqual('Z', t.FirstNonTerminal);
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68 |
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69 | // s must not be changed
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70 | Assert.AreEqual(5, s.Length);
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71 | Assert.AreEqual(false, s.IsTerminal);
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72 | Assert.AreEqual(4, s.FirstNonTerminalIndex);
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73 | Assert.AreEqual('A', s.FirstNonTerminal);
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74 | }
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75 | }
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76 |
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77 | [TestMethod]
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78 | public void TestReplaceAt() {
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79 | CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
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80 | {
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81 | var s = new Sequence("A");
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82 | var t = new Sequence("B");
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83 |
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84 | s.ReplaceAt(0, 1, t);
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85 | Assert.AreEqual('B', s.FirstNonTerminal);
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86 | Assert.AreEqual(1, s.Length);
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87 | }
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88 | {
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89 | var s = new Sequence("A");
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90 | var t = new Sequence("b");
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91 |
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92 | s.ReplaceAt(0, 1, t);
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93 | Assert.AreEqual(-1, s.FirstNonTerminalIndex);
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94 | Assert.AreEqual(1, s.Length);
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95 | }
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96 | {
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97 | var s = new Sequence("a");
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98 | var t = new Sequence("B");
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99 |
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100 | s.ReplaceAt(0, 1, t);
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101 | Assert.AreEqual('B', s.FirstNonTerminal);
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102 | Assert.AreEqual(1, s.Length);
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103 | }
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104 | {
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105 | var s = new Sequence("AB");
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106 | var t = new Sequence("a");
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107 |
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108 | s.ReplaceAt(0, 1, t);
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109 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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110 | Assert.AreEqual('B', s.FirstNonTerminal);
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111 | Assert.AreEqual(2, s.Length);
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112 | }
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113 | {
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114 | var s = new Sequence("AB");
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115 | var t = new Sequence("aa");
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116 |
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117 | s.ReplaceAt(0, 1, t);
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118 | Assert.AreEqual(2, s.FirstNonTerminalIndex);
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119 | Assert.AreEqual('B', s.FirstNonTerminal);
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120 | Assert.AreEqual(3, s.Length);
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121 | Assert.AreEqual("aaB", s.ToString());
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122 | }
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123 | {
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124 | var s = new Sequence("AB");
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125 | var t = new Sequence("bb");
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126 |
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127 | s.ReplaceAt(1, 1, t);
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128 | Assert.AreEqual(0, s.FirstNonTerminalIndex);
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129 | Assert.AreEqual('A', s.FirstNonTerminal);
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130 | Assert.AreEqual(3, s.Length);
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131 | Assert.AreEqual("Abb", s.ToString());
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132 | }
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133 | {
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134 | var s = new Sequence("AB");
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135 | var t = new Sequence("aA");
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136 |
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137 | s.ReplaceAt(0, 1, t);
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138 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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139 | Assert.AreEqual('A', s.FirstNonTerminal);
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140 | Assert.AreEqual(3, s.Length);
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141 | Assert.AreEqual("aAB", s.ToString());
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142 | }
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143 | {
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144 | var s = new Sequence("AaaB");
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145 | var t = new Sequence("a");
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146 |
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147 | s.ReplaceAt(0, 3, t);
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148 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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149 | Assert.AreEqual('B', s.FirstNonTerminal);
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150 | Assert.AreEqual(2, s.Length);
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151 | Assert.AreEqual("aB", s.ToString());
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152 | }
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153 | {
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154 | var s = new Sequence("AaaB");
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155 | var t = new Sequence("aAa");
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156 |
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157 | s.ReplaceAt(0, 3, t);
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158 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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159 | Assert.AreEqual('A', s.FirstNonTerminal);
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160 | Assert.AreEqual("aAaB", s.ToString());
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161 | }
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162 | {
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163 | var s = new Sequence("aaaA");
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164 | var t = new Sequence("aaa");
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165 |
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166 | s.ReplaceAt(3, 1, t);
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167 | Assert.AreEqual(-1, s.FirstNonTerminalIndex);
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168 | Assert.AreEqual("aaaaaa", s.ToString());
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169 | }
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170 | {
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171 | var s = new Sequence("aaaA");
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172 | var t = new Sequence("aaa");
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173 |
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174 | s.ReplaceAt(1, 3, t);
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175 | Assert.AreEqual(-1, s.FirstNonTerminalIndex);
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176 | Assert.AreEqual("aaaa", s.ToString());
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177 | }
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178 | {
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179 | var s = new Sequence("aaaA");
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180 | var t = new Sequence("aaa");
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181 |
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182 | s.ReplaceAt(0, 4, t);
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183 | Assert.AreEqual(-1, s.FirstNonTerminalIndex);
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184 | Assert.AreEqual("aaa", s.ToString());
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185 | }
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186 | {
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187 | var s = new Sequence("aaaA");
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188 | var t = new Sequence("aAaAA");
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189 |
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190 | s.ReplaceAt(0, 4, t);
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191 | Assert.AreEqual(1, s.FirstNonTerminalIndex);
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192 | Assert.AreEqual("aAaAA", s.ToString());
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193 | }
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194 |
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195 | // testing length checks
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196 | {
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197 | var s = new Sequence("aA");
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198 | var t = new Sequence("aA");
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199 |
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200 | try {
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201 | s.ReplaceAt(0, 4, t);
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202 | Assert.Fail();
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203 | }
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204 | catch (ArgumentException) { }
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205 |
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206 | s.ReplaceAt(0, 2, t); // should work
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207 |
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208 | try {
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209 | s.ReplaceAt(0, 3, t);
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210 | Assert.Fail();
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211 | }
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212 | catch (ArgumentException) { }
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213 |
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214 | try {
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215 | s.ReplaceAt(1, 2, t);
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216 | Assert.Fail();
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217 | }
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218 | catch (ArgumentException) { }
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219 |
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220 | s.ReplaceAt(1, 1, new Sequence("A")); // should work
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221 |
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222 | try {
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223 | s.ReplaceAt(-1, 2, t);
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224 | Assert.Fail();
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225 | }
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226 | catch (ArgumentException) { }
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227 |
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228 | }
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229 | }
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230 |
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231 | [TestMethod]
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232 | public void TestSubsequence() {
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233 | CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
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234 | {
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235 | var s = new Sequence("AAaaaAA");
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236 | var sub = s.Subsequence(0, 7);
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237 |
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238 | Assert.AreEqual(0, sub.FirstNonTerminalIndex);
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239 | Assert.AreEqual("AAaaaAA", sub.ToString());
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240 | }
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241 | {
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242 | var s = new Sequence("AAaaaAA");
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243 | var sub = s.Subsequence(0, 3);
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244 |
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245 | Assert.AreEqual(0, sub.FirstNonTerminalIndex);
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246 | Assert.AreEqual("AAa", sub.ToString());
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247 | }
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248 | {
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249 | var s = new Sequence("AAaaaAA");
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250 | var sub = s.Subsequence(2, 3);
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251 |
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252 | Assert.AreEqual(-1, sub.FirstNonTerminalIndex);
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253 | Assert.AreEqual("aaa", sub.ToString());
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254 | }
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255 | {
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256 | var s = new Sequence("AAaaaAA");
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257 | var sub = s.Subsequence(2, 4);
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258 |
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259 | Assert.AreEqual(3, sub.FirstNonTerminalIndex);
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260 | Assert.AreEqual("aaaA", sub.ToString());
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261 | }
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262 | {
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263 | var s = new Sequence("AAaaaAA");
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264 | var sub = s.Subsequence(5, 2);
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265 |
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266 | Assert.AreEqual(0, sub.FirstNonTerminalIndex);
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267 | Assert.AreEqual("AA", sub.ToString());
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268 | }
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269 | }
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270 | }
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271 | }
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