[257] | 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 |
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| 8 | import junitx.framework.ListAssert;
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| 9 |
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| 10 | import org.junit.*;
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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>TrieTest</code> contains tests for the class <code>{@link Trie}</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 TrieTest {
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| 20 |
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| 21 | List<String> sequence;
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| 22 | Collection<String> symbols;
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| 23 |
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| 24 | private static void assertCollectionContent(Collection<?> c1, Collection<?> c2) {
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| 25 | assertEquals(c1.size(), c2.size());
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| 26 | for( Object obj : c1 ) {
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| 27 | assertTrue(c2.contains(obj));
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| 28 | }
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| 29 | }
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| 30 |
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| 31 | @Test
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| 32 | public void testTrie_1()
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| 33 | throws Exception {
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| 34 |
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| 35 | Trie<String> result = new Trie<String>();
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| 36 |
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| 37 | assertNotNull(result);
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| 38 | assertEquals(0, result.getNumLeafs());
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| 39 | assertEquals(0, result.getNumSymbols());
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| 40 | assertEquals(0, result.getNumLeafAncestors());
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| 41 | assertTrue(result.getKnownSymbols().isEmpty());
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| 42 | }
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| 43 |
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| 44 | @Test
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| 45 | public void testAdd_1()
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| 46 | throws Exception {
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| 47 | Trie<String> fixture = new Trie<String>();
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| 48 | List<String> seq = new ArrayList<String>();
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| 49 | seq.add("a");
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| 50 | seq.add("b");
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| 51 |
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| 52 | fixture.add(seq);
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| 53 |
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| 54 | assertEquals(1, fixture.getChild("a").getCount());
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| 55 | assertEquals(1, fixture.getChild("a").getChild("b").getCount());
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| 56 | assertNull(fixture.getChild("b"));
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| 57 | }
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| 58 |
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| 59 | @Test
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| 60 | public void testAdd_2()
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| 61 | throws Exception {
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| 62 | Trie<String> fixture = new Trie<String>();
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| 63 |
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| 64 | fixture.add(new ArrayList<String>());
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| 65 |
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| 66 | assertEquals(0, fixture.getNumSymbols());
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| 67 | }
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| 68 |
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| 69 | @Test
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| 70 | public void testAdd_3()
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| 71 | throws Exception {
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| 72 | Trie<String> fixture = new Trie<String>();
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| 73 |
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| 74 | fixture.add(null);
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| 75 |
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| 76 | assertEquals(0, fixture.getNumSymbols());
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| 77 | }
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| 78 |
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| 79 | @Test
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| 80 | public void testFind_1()
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| 81 | throws Exception {
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| 82 | Trie<String> fixture = new Trie<String>();
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| 83 | fixture.train(sequence, 3);
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| 84 | List<String> findSequence = new ArrayList<String>();
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| 85 | findSequence.add("a");
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| 86 | findSequence.add("b");
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| 87 | findSequence.add("r");
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| 88 | TrieNode<String> expected = fixture.getChild("a").getChild("b").getChild("r");
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| 89 |
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| 90 | TrieNode<String> result = fixture.find(findSequence);
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| 91 |
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| 92 | assertEquals(expected, result);
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| 93 | }
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| 94 |
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| 95 | @Test
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| 96 | public void testFind_2()
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| 97 | throws Exception {
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| 98 | Trie<String> fixture = new Trie<String>();
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| 99 | fixture.train(sequence, 3);
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| 100 | List<String> findSequence = new ArrayList<String>();
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| 101 | findSequence.add("c");
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| 102 | findSequence.add("a");
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| 103 | TrieNode<String> expected = fixture.getChild("c").getChild("a");
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| 104 |
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| 105 | TrieNode<String> result = fixture.find(findSequence);
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| 106 |
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| 107 | assertEquals(expected, result);
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| 108 | }
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| 109 |
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| 110 | @Test
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| 111 | public void testFind_3()
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| 112 | throws Exception {
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| 113 | Trie<String> fixture = new Trie<String>();
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| 114 | fixture.train(sequence, 3);
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| 115 | List<String> findSequence = new ArrayList<String>();
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| 116 |
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| 117 | TrieNode<String> result = fixture.find(findSequence);
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| 118 |
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| 119 | assertTrue(result.isRoot());
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| 120 | }
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| 121 |
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| 122 | @Test
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| 123 | public void testFind_4()
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| 124 | throws Exception {
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| 125 | Trie<String> fixture = new Trie<String>();
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| 126 | fixture.train(sequence, 3);
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| 127 |
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| 128 | TrieNode<String> result = fixture.find(null);
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| 129 |
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| 130 | assertTrue(result.isRoot());
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| 131 | }
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| 132 |
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| 133 | @Test
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| 134 | public void testGetChildCreate_1()
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| 135 | throws Exception {
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| 136 | Trie<String> fixture = new Trie<String>();
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| 137 | String symbol = "a";
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| 138 |
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| 139 | TrieNode<String> result = fixture.getChildCreate(symbol);
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| 140 |
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| 141 | assertEquals(symbol, result.getSymbol());
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| 142 | assertEquals(0, result.getCount());
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| 143 | assertTrue(result.isLeaf());
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| 144 | }
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| 145 |
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| 146 | @Test(expected=java.security.InvalidParameterException.class)
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| 147 | public void testGetChildCreate_2()
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| 148 | throws Exception {
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| 149 | Trie<String> fixture = new Trie<String>();
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| 150 | fixture.getChildCreate(null);
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| 151 | }
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| 152 |
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| 153 | @Test
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| 154 | public void testGetContextSuffix_1()
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| 155 | throws Exception {
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| 156 | Trie<String> fixture = new Trie<String>();
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| 157 | fixture.train(sequence, 3);
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| 158 | List<String> context = new ArrayList<String>();
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| 159 | context.add("a");
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| 160 | context.add("a");
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| 161 | context.add("b");
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| 162 | List<String> expected = new ArrayList<String>();
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| 163 | expected.add("a");
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| 164 | expected.add("b");
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| 165 |
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| 166 |
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| 167 | List<String> result = fixture.getContextSuffix(context);
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| 168 |
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| 169 | ListAssert.assertEquals(expected, result);
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| 170 | }
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| 171 |
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| 172 | @Test
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| 173 | public void testGetContextSuffix_2()
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| 174 | throws Exception {
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| 175 | Trie<String> fixture = new Trie<String>();
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| 176 | fixture.train(sequence, 3);
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| 177 | List<String> context = new ArrayList<String>();
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| 178 | context.add("a");
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| 179 | context.add("a");
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| 180 | context.add("b");
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| 181 | context.add("r");
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| 182 | List<String> expected = new ArrayList<String>();
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| 183 | expected.add("b");
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| 184 | expected.add("r");
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| 185 |
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| 186 |
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| 187 | List<String> result = fixture.getContextSuffix(context);
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| 188 |
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| 189 | ListAssert.assertEquals(expected, result);
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| 190 | }
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| 191 |
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| 192 | @Test
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| 193 | public void testGetContextSuffix_3()
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| 194 | throws Exception {
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| 195 | Trie<String> fixture = new Trie<String>();
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| 196 | fixture.train(sequence, 3);
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| 197 | List<String> context = new ArrayList<String>();
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| 198 | context.add("a");
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| 199 | context.add("a");
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| 200 | context.add("b");
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| 201 | context.add("x");
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| 202 | List<String> expected = new ArrayList<String>();
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| 203 |
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| 204 | List<String> result = fixture.getContextSuffix(context);
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| 205 |
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| 206 | ListAssert.assertEquals(expected, result);
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| 207 | }
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| 208 |
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| 209 | @Test
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| 210 | public void testGetContextSuffix_4()
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| 211 | throws Exception {
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| 212 | Trie<String> fixture = new Trie<String>();
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| 213 |
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| 214 | List<String> result = fixture.getContextSuffix(null);
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| 215 |
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| 216 | // add additional test code here
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| 217 | assertNotNull(result);
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| 218 | assertEquals(0, result.size());
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| 219 | }
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| 220 |
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| 221 | @Test
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| 222 | public void testGetContextSuffix_5()
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| 223 | throws Exception {
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| 224 | Trie<String> fixture = new Trie<String>();
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| 225 | fixture.train(sequence, 3);
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| 226 | List<String> context = new ArrayList<String>();
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| 227 | context.add("a");
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| 228 | context.add("a");
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| 229 | context.add("b");
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| 230 | List<String> expected = new ArrayList<String>();
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| 231 | expected.add("a");
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| 232 | expected.add("b");
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| 233 |
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| 234 |
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| 235 | List<String> result = fixture.getContextSuffix(context);
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| 236 |
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| 237 | ListAssert.assertEquals(expected, result);
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| 238 | }
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| 239 |
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| 240 | @Test
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| 241 | public void testGetCount_1()
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| 242 | throws Exception {
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| 243 | Trie<String> fixture = new Trie<String>();
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| 244 | fixture.train(sequence, 3);
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| 245 | List<String> subSequence = new ArrayList<String>();
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| 246 | subSequence.add("a");
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| 247 |
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| 248 | int result = fixture.getCount(subSequence);
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| 249 |
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| 250 | assertEquals(5, result);
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| 251 | }
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| 252 |
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| 253 | @Test
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| 254 | public void testGetCount_2()
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| 255 | throws Exception {
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| 256 | Trie<String> fixture = new Trie<String>();
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| 257 | fixture.train(sequence, 3);
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| 258 | List<String> subSequence = new ArrayList<String>();
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| 259 | subSequence.add("a");
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| 260 | subSequence.add("b");
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| 261 |
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| 262 | int result = fixture.getCount(subSequence);
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| 263 |
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| 264 | assertEquals(2, result);
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| 265 | }
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| 266 |
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| 267 | @Test
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| 268 | public void testGetCount_3()
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| 269 | throws Exception {
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| 270 | Trie<String> fixture = new Trie<String>();
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| 271 | fixture.train(sequence, 3);
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| 272 | List<String> subSequence = new ArrayList<String>();
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| 273 | subSequence.add("x");
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| 274 |
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| 275 | int result = fixture.getCount(subSequence);
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| 276 |
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| 277 | assertEquals(0, result);
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| 278 | }
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| 279 |
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| 280 | @Test
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| 281 | public void testGetCount_4()
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| 282 | throws Exception {
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| 283 | Trie<String> fixture = new Trie<String>();
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| 284 | fixture.train(sequence, 3);
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| 285 | List<String> subSequence = new ArrayList<String>();
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| 286 |
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| 287 | int result = fixture.getCount(subSequence, "a");
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| 288 |
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| 289 | assertEquals(5, result);
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| 290 | }
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| 291 |
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| 292 | @Test
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| 293 | public void testGetCount_5()
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| 294 | throws Exception {
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| 295 | Trie<String> fixture = new Trie<String>();
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| 296 | fixture.train(sequence, 3);
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| 297 | List<String> subSequence = new ArrayList<String>();
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| 298 | subSequence.add("a");
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| 299 | subSequence.add("b");
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| 300 |
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| 301 | int result = fixture.getCount(subSequence, "r");
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| 302 |
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| 303 | assertEquals(2, result);
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| 304 | }
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| 305 |
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| 306 | @Test
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| 307 | public void testGetCount_6()
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| 308 | throws Exception {
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| 309 | Trie<String> fixture = new Trie<String>();
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| 310 | fixture.train(sequence, 3);
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| 311 | List<String> subSequence = new ArrayList<String>();
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| 312 |
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| 313 | int result = fixture.getCount(subSequence, "x");
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| 314 |
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| 315 | assertEquals(0, result);
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| 316 | }
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| 317 |
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| 318 | @Test
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| 319 | public void testGetFollowingSymbols_1()
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| 320 | throws Exception {
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| 321 | Trie<String> fixture = new Trie<String>();
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| 322 | fixture.train(sequence, 3);
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| 323 | List<String> subSequence = new ArrayList<String>();
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| 324 | subSequence.add("a");
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| 325 | Collection<String> expected = new ArrayList<String>();
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| 326 | expected.add("b");
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| 327 | expected.add("c");
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| 328 | expected.add("d");
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| 329 |
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| 330 | Collection<String> result = fixture.getFollowingSymbols(subSequence);
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| 331 |
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| 332 | assertCollectionContent(expected, result);
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| 333 | }
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| 334 |
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| 335 | @Test
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| 336 | public void testGetFollowingSymbols_2()
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| 337 | throws Exception {
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| 338 | Trie<String> fixture = new Trie<String>();
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| 339 | fixture.train(sequence, 3);
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| 340 | List<String> subSequence = new ArrayList<String>();
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| 341 | subSequence.add("a");
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| 342 | subSequence.add("b");
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| 343 | subSequence.add("r");
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| 344 |
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| 345 | Collection<String> result = fixture.getFollowingSymbols(subSequence);
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| 346 |
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| 347 | assertEquals(0, result.size());
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| 348 | }
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| 349 |
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| 350 | @Test
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| 351 | public void testGetFollowingSymbols_3()
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| 352 | throws Exception {
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| 353 | Trie<String> fixture = new Trie<String>();
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| 354 | fixture.train(sequence, 3);
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| 355 | List<String> subSequence = new ArrayList<String>();
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| 356 | subSequence.add("x");
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| 357 |
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| 358 | Collection<String> result = fixture.getFollowingSymbols(subSequence);
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| 359 |
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| 360 | assertEquals(0, result.size());
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| 361 | }
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| 362 |
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| 363 | @Test
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| 364 | public void testGetNumLeafAncestors_1()
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| 365 | throws Exception {
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| 366 | Trie<String> fixture = new Trie<String>();
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| 367 | fixture.train(sequence, 3);
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| 368 |
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| 369 | int result = fixture.getNumLeafAncestors();
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| 370 |
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| 371 | assertEquals(7, result);
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| 372 | }
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| 373 |
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| 374 | @Test
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| 375 | public void testGetNumLeafs_1()
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| 376 | throws Exception {
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| 377 | Trie<String> fixture = new Trie<String>();
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| 378 | fixture.train(sequence, 3);
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| 379 |
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| 380 | int result = fixture.getNumLeafs();
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| 381 |
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| 382 | assertEquals(7, result);
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| 383 | }
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| 384 |
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| 385 | @Test
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| 386 | public void testGetNumSymbols_1()
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| 387 | throws Exception {
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| 388 | Trie<String> fixture = new Trie<String>();
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| 389 | fixture.train(sequence, 3);
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| 390 |
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| 391 | int result = fixture.getNumSymbols();
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| 392 |
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| 393 | assertEquals(5, result);
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| 394 | }
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| 395 |
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| 396 | @Test
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| 397 | public void testTrain_1()
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| 398 | throws Exception {
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| 399 | Trie<String> fixture = new Trie<String>();
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| 400 | int maxOrder = 3;
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| 401 |
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| 402 | fixture.train(sequence, maxOrder);
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| 403 |
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| 404 | // check if symbols are correct
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| 405 | assertCollectionContent(symbols, fixture.getKnownSymbols());
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| 406 |
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| 407 | // check if counters are correct and only the correct nodes exist
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| 408 | TrieNode<String> root = fixture.find(new ArrayList<String>());
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| 409 | TrieNode<String> root_a = root.getChild("a");
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| 410 | TrieNode<String> root_a_a = root_a.getChild("a");
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| 411 | TrieNode<String> root_a_b = root_a.getChild("b");
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| 412 | TrieNode<String> root_a_b_a = root_a_b.getChild("a");
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| 413 | TrieNode<String> root_a_b_b = root_a_b.getChild("b");
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| 414 | TrieNode<String> root_a_b_c = root_a_b.getChild("c");
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| 415 | TrieNode<String> root_a_b_d = root_a_b.getChild("d");
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| 416 | TrieNode<String> root_a_b_r = root_a_b.getChild("r");
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| 417 | TrieNode<String> root_a_c = root_a.getChild("c");
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| 418 | TrieNode<String> root_a_c_a = root_a_c.getChild("a");
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| 419 | TrieNode<String> root_a_c_b = root_a_c.getChild("b");
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| 420 | TrieNode<String> root_a_c_c = root_a_c.getChild("c");
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| 421 | TrieNode<String> root_a_c_d = root_a_c.getChild("d");
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| 422 | TrieNode<String> root_a_c_r = root_a_c.getChild("r");
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| 423 | TrieNode<String> root_a_d = root_a.getChild("d");
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| 424 | TrieNode<String> root_a_d_a = root_a_d.getChild("a");
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| 425 | TrieNode<String> root_a_d_b = root_a_d.getChild("b");
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| 426 | TrieNode<String> root_a_d_c = root_a_d.getChild("c");
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| 427 | TrieNode<String> root_a_d_d = root_a_d.getChild("d");
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| 428 | TrieNode<String> root_a_d_r = root_a_d.getChild("r");
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| 429 | TrieNode<String> root_a_r = root_a.getChild("r");
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| 430 | TrieNode<String> root_b = root.getChild("b");
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| 431 | TrieNode<String> root_b_a = root_b.getChild("a");
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| 432 | TrieNode<String> root_b_b = root_b.getChild("b");
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| 433 | TrieNode<String> root_b_c = root_b.getChild("c");
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| 434 | TrieNode<String> root_b_d = root_b.getChild("d");
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| 435 | TrieNode<String> root_b_r = root_b.getChild("r");
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| 436 | TrieNode<String> root_b_r_a = root_b_r.getChild("a");
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| 437 | TrieNode<String> root_b_r_b = root_b_r.getChild("b");
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| 438 | TrieNode<String> root_b_r_c = root_b_r.getChild("c");
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| 439 | TrieNode<String> root_b_r_d = root_b_r.getChild("d");
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| 440 | TrieNode<String> root_b_r_r = root_b_r.getChild("r");
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| 441 | TrieNode<String> root_c = root.getChild("c");
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| 442 | TrieNode<String> root_c_a = root_c.getChild("a");
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| 443 | TrieNode<String> root_c_a_a = root_c_a.getChild("a");
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| 444 | TrieNode<String> root_c_a_b = root_c_a.getChild("b");
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| 445 | TrieNode<String> root_c_a_c = root_c_a.getChild("c");
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| 446 | TrieNode<String> root_c_a_d = root_c_a.getChild("d");
|
---|
| 447 | TrieNode<String> root_c_a_r = root_c_a.getChild("r");
|
---|
| 448 | TrieNode<String> root_c_b = root_c.getChild("b");
|
---|
| 449 | TrieNode<String> root_c_c = root_c.getChild("c");
|
---|
| 450 | TrieNode<String> root_c_d = root_c.getChild("d");
|
---|
| 451 | TrieNode<String> root_c_r = root_c.getChild("r");
|
---|
| 452 | TrieNode<String> root_d = root.getChild("d");
|
---|
| 453 | TrieNode<String> root_d_a = root_d.getChild("a");
|
---|
| 454 | TrieNode<String> root_d_a_a = root_d_a.getChild("a");
|
---|
| 455 | TrieNode<String> root_d_a_b = root_d_a.getChild("b");
|
---|
| 456 | TrieNode<String> root_d_a_c = root_d_a.getChild("c");
|
---|
| 457 | TrieNode<String> root_d_a_d = root_d_a.getChild("d");
|
---|
| 458 | TrieNode<String> root_d_a_r = root_d_a.getChild("r");
|
---|
| 459 | TrieNode<String> root_d_b = root_d.getChild("b");
|
---|
| 460 | TrieNode<String> root_d_c = root_d.getChild("c");
|
---|
| 461 | TrieNode<String> root_d_d = root_d.getChild("d");
|
---|
| 462 | TrieNode<String> root_d_r = root_d.getChild("r");
|
---|
| 463 | TrieNode<String> root_r = root.getChild("r");
|
---|
| 464 | TrieNode<String> root_r_a = root_r.getChild("a");
|
---|
| 465 | TrieNode<String> root_r_a_a = root_r_a.getChild("a");
|
---|
| 466 | TrieNode<String> root_r_a_b = root_r_a.getChild("b");
|
---|
| 467 | TrieNode<String> root_r_a_c = root_r_a.getChild("c");
|
---|
| 468 | TrieNode<String> root_r_a_d = root_r_a.getChild("d");
|
---|
| 469 | TrieNode<String> root_r_a_r = root_r_a.getChild("r");
|
---|
| 470 | TrieNode<String> root_r_b = root_r.getChild("b");
|
---|
| 471 | TrieNode<String> root_r_c = root_r.getChild("c");
|
---|
| 472 | TrieNode<String> root_r_d = root_r.getChild("d");
|
---|
| 473 | TrieNode<String> root_r_r = root_r.getChild("r");
|
---|
| 474 |
|
---|
| 475 | assertEquals(5, root_a.getCount());
|
---|
| 476 | assertNull(root_a_a);
|
---|
| 477 | assertEquals(2, root_a_b.getCount());
|
---|
| 478 | assertNull(root_a_b_a);
|
---|
| 479 | assertNull(root_a_b_b);
|
---|
| 480 | assertNull(root_a_b_c);
|
---|
| 481 | assertNull(root_a_b_d);
|
---|
| 482 | assertEquals(2, root_a_b_r.getCount());
|
---|
| 483 | assertEquals(1, root_a_c.getCount());
|
---|
| 484 | assertEquals(1, root_a_c_a.getCount());
|
---|
| 485 | assertNull(root_a_c_b);
|
---|
| 486 | assertNull(root_a_c_c);
|
---|
| 487 | assertNull(root_a_c_d);
|
---|
| 488 | assertNull(root_a_c_r);
|
---|
| 489 | assertEquals(1, root_a_d.getCount());
|
---|
| 490 | assertEquals(1, root_a_d_a.getCount());
|
---|
| 491 | assertNull(root_a_d_b);
|
---|
| 492 | assertNull(root_a_d_c);
|
---|
| 493 | assertNull(root_a_d_d);
|
---|
| 494 | assertNull(root_a_d_r);
|
---|
| 495 | assertNull(root_a_r);
|
---|
| 496 |
|
---|
| 497 | assertEquals(2, root_b.getCount());
|
---|
| 498 | assertNull(root_b_a);
|
---|
| 499 | assertNull(root_b_b);
|
---|
| 500 | assertNull(root_b_c);
|
---|
| 501 | assertNull(root_b_d);
|
---|
| 502 | assertEquals(2, root_b_r.getCount());
|
---|
| 503 | assertEquals(2, root_b_r_a.getCount());
|
---|
| 504 | assertNull(root_b_r_b);
|
---|
| 505 | assertNull(root_b_r_c);
|
---|
| 506 | assertNull(root_b_r_d);
|
---|
| 507 | assertNull(root_b_r_r);
|
---|
| 508 |
|
---|
| 509 | assertEquals(1, root_c.getCount());
|
---|
| 510 | assertEquals(1, root_c_a.getCount());
|
---|
| 511 | assertNull(root_c_a_a);
|
---|
| 512 | assertNull(root_c_a_b);
|
---|
| 513 | assertNull(root_c_a_c);
|
---|
| 514 | assertEquals(1, root_c_a_d.getCount());
|
---|
| 515 | assertNull(root_c_a_r);
|
---|
| 516 | assertNull(root_c_b);
|
---|
| 517 | assertNull(root_c_c);
|
---|
| 518 | assertNull(root_c_d);
|
---|
| 519 | assertNull(root_c_r);
|
---|
| 520 |
|
---|
| 521 | assertEquals(1, root_d.getCount());
|
---|
| 522 | assertEquals(1, root_d_a.getCount());
|
---|
| 523 | assertNull(root_d_a_a);
|
---|
| 524 | assertEquals(1, root_d_a_b.getCount());
|
---|
| 525 | assertNull(root_d_a_c);
|
---|
| 526 | assertNull(root_d_a_d);
|
---|
| 527 | assertNull(root_d_a_r);
|
---|
| 528 | assertNull(root_d_b);
|
---|
| 529 | assertNull(root_d_c);
|
---|
| 530 | assertNull(root_d_d);
|
---|
| 531 | assertNull(root_d_r);
|
---|
| 532 |
|
---|
| 533 | assertEquals(2, root_r.getCount());
|
---|
| 534 | assertEquals(2, root_r_a.getCount());
|
---|
| 535 | assertNull(root_r_a_a);
|
---|
| 536 | assertNull(root_r_a_b);
|
---|
| 537 | assertEquals(1, root_r_a_c.getCount());
|
---|
| 538 | assertNull(root_r_a_d);
|
---|
| 539 | assertNull(root_r_a_r);
|
---|
| 540 | assertNull(root_r_b);
|
---|
| 541 | assertNull(root_r_c);
|
---|
| 542 | assertNull(root_r_d);
|
---|
| 543 | assertNull(root_r_r);
|
---|
| 544 |
|
---|
| 545 | // check if leafs are really leafs
|
---|
| 546 | assertTrue(root_a_b_r.isLeaf());
|
---|
| 547 | assertTrue(root_a_c_a.isLeaf());
|
---|
| 548 | assertTrue(root_a_d_a.isLeaf());
|
---|
| 549 | assertTrue(root_b_r_a.isLeaf());
|
---|
| 550 | assertTrue(root_c_a_d.isLeaf());
|
---|
| 551 | assertTrue(root_d_a_b.isLeaf());
|
---|
| 552 | assertTrue(root_r_a_c.isLeaf());
|
---|
| 553 | }
|
---|
| 554 |
|
---|
| 555 | @Test
|
---|
| 556 | public void testTrain_2()
|
---|
| 557 | throws Exception {
|
---|
| 558 | Trie<String> fixture = new Trie<String>();
|
---|
| 559 | int maxOrder = 0;
|
---|
| 560 |
|
---|
| 561 | fixture.train(sequence, maxOrder);
|
---|
| 562 |
|
---|
| 563 | assertTrue(fixture.getKnownSymbols().isEmpty());
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | @Test
|
---|
| 567 | public void testTrain_3()
|
---|
| 568 | throws Exception {
|
---|
| 569 | Trie<Object> fixture = new Trie<Object>();
|
---|
| 570 | List<Object> sequence = new ArrayList<Object>();
|
---|
| 571 | int maxOrder = 1;
|
---|
| 572 |
|
---|
| 573 | fixture.train(sequence, maxOrder);
|
---|
| 574 |
|
---|
| 575 | assertTrue(fixture.getKnownSymbols().isEmpty());
|
---|
| 576 | }
|
---|
| 577 |
|
---|
| 578 | @Test
|
---|
| 579 | public void testTrain_4()
|
---|
| 580 | throws Exception {
|
---|
| 581 | Trie<String> fixture = new Trie<String>();
|
---|
| 582 | List<String> sequence = new ArrayList<String>();
|
---|
| 583 | sequence.add("a");
|
---|
| 584 | sequence.add("b");
|
---|
| 585 | int maxOrder = 3;
|
---|
| 586 |
|
---|
| 587 | fixture.train(sequence, maxOrder);
|
---|
| 588 |
|
---|
| 589 | assertCollectionContent(sequence, fixture.getKnownSymbols());
|
---|
| 590 | TrieNode<String> root = fixture.find(new ArrayList<String>());
|
---|
| 591 | TrieNode<String> root_a = root.getChild("a");
|
---|
| 592 | TrieNode<String> root_a_a = root_a.getChild("a");
|
---|
| 593 | TrieNode<String> root_a_b = root_a.getChild("b");
|
---|
| 594 | TrieNode<String> root_b = root.getChild("b");
|
---|
| 595 | TrieNode<String> root_b_a = root_b.getChild("a");
|
---|
| 596 | TrieNode<String> root_b_b = root_b.getChild("b");
|
---|
| 597 |
|
---|
| 598 | assertEquals(1, root_a.getCount());
|
---|
| 599 | assertNull(root_a_a);
|
---|
| 600 | assertEquals(1, root_a_b.getCount());
|
---|
| 601 | assertEquals(1, root_b.getCount());
|
---|
| 602 | assertNull(root_b_a);
|
---|
| 603 | assertNull(root_b_b);
|
---|
| 604 |
|
---|
| 605 | assertTrue(root_a_b.isLeaf());
|
---|
| 606 | assertTrue(root_b.isLeaf());
|
---|
| 607 | }
|
---|
| 608 |
|
---|
| 609 | @Before
|
---|
| 610 | public void setUp()
|
---|
| 611 | throws Exception {
|
---|
| 612 | sequence = new ArrayList<String>();
|
---|
| 613 | sequence.add("a");
|
---|
| 614 | sequence.add("b");
|
---|
| 615 | sequence.add("r");
|
---|
| 616 | sequence.add("a");
|
---|
| 617 | sequence.add("c");
|
---|
| 618 | sequence.add("a");
|
---|
| 619 | sequence.add("d");
|
---|
| 620 | sequence.add("a");
|
---|
| 621 | sequence.add("b");
|
---|
| 622 | sequence.add("r");
|
---|
| 623 | sequence.add("a");
|
---|
| 624 |
|
---|
| 625 | symbols = new HashSet<String>();
|
---|
| 626 | symbols.add("a");
|
---|
| 627 | symbols.add("b");
|
---|
| 628 | symbols.add("c");
|
---|
| 629 | symbols.add("d");
|
---|
| 630 | symbols.add("r");
|
---|
| 631 | }
|
---|
| 632 |
|
---|
| 633 | @After
|
---|
| 634 | public void tearDown()
|
---|
| 635 | throws Exception {
|
---|
| 636 | // Add additional tear down code here
|
---|
| 637 | }
|
---|
| 638 |
|
---|
| 639 | public static void main(String[] args) {
|
---|
| 640 | new org.junit.runner.JUnitCore().run(TrieTest.class);
|
---|
| 641 | }
|
---|
| 642 | } |
---|