1 | package de.ugoe.cs.eventbench.models;
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2 |
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3 | import java.util.ArrayList;
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4 | import java.util.Collection;
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5 | import java.util.HashSet;
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6 | import java.util.List;
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7 | import java.util.Random;
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8 | import org.junit.*;
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9 |
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10 | import de.ugoe.cs.eventbench.data.Event;
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11 | import static org.junit.Assert.*;
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12 |
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13 | /**
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14 | * The class <code>ModelFlattenerTest</code> contains tests for the class <code>{@link ModelFlattener}</code>.
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15 | *
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16 | * @author Steffen Herbold
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17 | * @version 1.0
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18 | */
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19 | public class ModelFlattenerTest {
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20 |
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21 | List<Event<?>> sequence;
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22 |
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23 | private static void assertCollectionContent(Collection<?> c1, Collection<?> c2) {
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24 | assertEquals(c1.size(), c2.size());
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25 | for( Object obj : c1 ) {
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26 | assertTrue(c2.contains(obj));
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27 | }
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28 | }
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29 |
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30 | @Test
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31 | public void testFlattenHighOrderMarkovModel_1()
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32 | throws Exception {
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33 | ModelFlattener fixture = new ModelFlattener();
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34 | HighOrderMarkovModel model = new HighOrderMarkovModel(2, new Random());
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35 | Collection<List<? extends Event<?>>> sequences = new ArrayList<List<? extends Event<?>>>();
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36 | sequences.add(sequence);
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37 | model.train(sequences);
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38 |
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39 | Collection<Event<?>> expectedSymbols = new HashSet<Event<?>>();
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40 | expectedSymbols.add(new Event<Object>("a-=-END"));
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41 | expectedSymbols.add(new Event<Object>("a-=-b"));
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42 | expectedSymbols.add(new Event<Object>("a-=-c"));
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43 | expectedSymbols.add(new Event<Object>("a-=-d"));
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44 | expectedSymbols.add(new Event<Object>("b-=-r"));
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45 | expectedSymbols.add(new Event<Object>("c-=-a"));
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46 | expectedSymbols.add(new Event<Object>("d-=-a"));
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47 | expectedSymbols.add(new Event<Object>("r-=-a"));
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48 | expectedSymbols.add(new Event<Object>("START-=-a"));
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49 |
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50 | FirstOrderMarkovModel result = fixture.flattenHighOrderMarkovModel(model);
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51 |
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52 | assertCollectionContent(expectedSymbols, result.getEvents());
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53 |
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54 | TrieNode<Event<?>> root = result.trie.find(null);
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55 | TrieNode<Event<?>> root_aEnd = root.getChild(new Event<Object>("a-=-END"));
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56 | TrieNode<Event<?>> root_ab = root.getChild(new Event<Object>("a-=-b"));
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57 | TrieNode<Event<?>> root_ab_br = root_ab.getChild(new Event<Object>("b-=-r"));
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58 | TrieNode<Event<?>> root_ac = root.getChild(new Event<Object>("a-=-c"));
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59 | TrieNode<Event<?>> root_ac_ca = root_ac.getChild(new Event<Object>("c-=-a"));
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60 | TrieNode<Event<?>> root_ad = root.getChild(new Event<Object>("a-=-d"));
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61 | TrieNode<Event<?>> root_ad_da = root_ad.getChild(new Event<Object>("d-=-a"));
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62 | TrieNode<Event<?>> root_br = root.getChild(new Event<Object>("b-=-r"));
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63 | TrieNode<Event<?>> root_br_ra = root_br.getChild(new Event<Object>("r-=-a"));
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64 | TrieNode<Event<?>> root_ca = root.getChild(new Event<Object>("c-=-a"));
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65 | TrieNode<Event<?>> root_ca_ad = root_ca.getChild(new Event<Object>("a-=-d"));
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66 | TrieNode<Event<?>> root_da = root.getChild(new Event<Object>("d-=-a"));
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67 | TrieNode<Event<?>> root_da_ab = root_da.getChild(new Event<Object>("a-=-b"));
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68 | TrieNode<Event<?>> root_ra = root.getChild(new Event<Object>("r-=-a"));
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69 | TrieNode<Event<?>> root_ra_ac = root_ra.getChild(new Event<Object> ("a-=-c"));
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70 | TrieNode<Event<?>> root_ra_aEnd = root_ra.getChild(new Event<Object>("a-=-END"));
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71 | TrieNode<Event<?>> root_startA = root.getChild(new Event<Object>("START-=-a"));
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72 | TrieNode<Event<?>> root_startA_ab = root_startA.getChild(new Event<Object>("a-=-b"));
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73 |
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74 | assertEquals(1, root_aEnd.getCount());
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75 | assertTrue(root_aEnd.isLeaf());
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76 | assertEquals(2, root_ab.getCount());
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77 | assertEquals(1, root_ab.getChildren().size());
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78 | assertEquals(2, root_ab_br.getCount());
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79 | assertTrue(root_ab_br.isLeaf());
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80 | assertEquals(1, root_ac.getCount());
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81 | assertEquals(1, root_ac.getChildren().size());
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82 | assertEquals(1, root_ac_ca.getCount());
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83 | assertTrue(root_ac_ca.isLeaf());
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84 | assertEquals(1, root_ad.getCount());
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85 | assertEquals(1, root_ad.getChildren().size());
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86 | assertEquals(1, root_ad_da.getCount());
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87 | assertTrue(root_ad_da.isLeaf());
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88 | assertEquals(2, root_br.getCount());
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89 | assertEquals(1, root_br.getChildren().size());
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90 | assertEquals(2, root_br_ra.getCount());
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91 | assertTrue(root_br_ra.isLeaf());
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92 | assertEquals(1, root_ca.getCount());
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93 | assertEquals(1, root_ca.getChildren().size());
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94 | assertEquals(1, root_ca_ad.getCount());
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95 | assertTrue(root_ca_ad.isLeaf());
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96 | assertEquals(1, root_da.getCount());
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97 | assertEquals(1, root_da.getChildren().size());
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98 | assertEquals(1, root_da_ab.getCount());
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99 | assertTrue(root_da_ab.isLeaf());
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100 | assertEquals(2, root_ra.getCount());
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101 | assertEquals(2, root_ra.getChildren().size());
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102 | assertEquals(1, root_ra_ac.getCount());
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103 | assertTrue(root_ra_ac.isLeaf());
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104 | assertEquals(1, root_ra_aEnd.getCount());
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105 | assertTrue(root_ra_aEnd.isLeaf());
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106 | assertEquals(1, root_startA.getCount());
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107 | assertEquals(1, root_startA.getChildren().size());
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108 | assertEquals(1, root_startA_ab.getCount());
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109 | assertTrue(root_startA_ab.isLeaf());
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110 | }
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111 |
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112 | @Test
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113 | public void testFlattenPredictionByPartialMatch_1()
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114 | throws Exception {
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115 | ModelFlattener fixture = new ModelFlattener();
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116 | PredictionByPartialMatch model = new PredictionByPartialMatch(1, new Random());
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117 |
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118 | FirstOrderMarkovModel result = fixture.flattenPredictionByPartialMatch(model);
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119 |
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120 | assertEquals(null, result);
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121 | }
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122 |
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123 | @Before
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124 | public void setUp()
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125 | throws Exception {
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126 | sequence = new ArrayList<Event<?>>();
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127 | sequence.add(new Event<String>("a"));
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128 | sequence.add(new Event<String>("b"));
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129 | sequence.add(new Event<String>("r"));
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130 | sequence.add(new Event<String>("a"));
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131 | sequence.add(new Event<String>("c"));
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132 | sequence.add(new Event<String>("a"));
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133 | sequence.add(new Event<String>("d"));
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134 | sequence.add(new Event<String>("a"));
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135 | sequence.add(new Event<String>("b"));
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136 | sequence.add(new Event<String>("r"));
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137 | sequence.add(new Event<String>("a"));
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138 | }
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139 |
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140 | public static void main(String[] args) {
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141 | new org.junit.runner.JUnitCore().run(ModelFlattenerTest.class);
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142 | }
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143 | } |
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