1 package jp.sourceforge.stigmata.birthmarks.kgram;
3 import org.junit.Assert;
4 import org.junit.Before;
9 * @author Haruaki Tamada
11 public class KGramTest{
12 private String[] plainValues;
13 private String[] complexValues;
16 public void buildKGrams(){
17 plainValues = new String[] { "a", "b", "c", "d", "e", "f", "g", };
18 complexValues = new String[] { "a", "b", "r", "a", "c", "a", "d", "a", "b", "r", "a", };
22 public void checkPlainKGram(){
23 KGram<String>[] kgrams = KGramBuilder.getInstance().buildKGram(plainValues, 4);
24 Assert.assertEquals(4, kgrams.length);
26 Assert.assertEquals(4, kgrams[0].getKValue());
27 Assert.assertEquals(4, kgrams[1].getKValue());
28 Assert.assertEquals(4, kgrams[2].getKValue());
29 Assert.assertEquals(4, kgrams[3].getKValue());
31 Assert.assertArrayEquals(new String[] { "a", "b", "c", "d", }, kgrams[0].toArray());
32 Assert.assertArrayEquals(new String[] { "b", "c", "d", "e", }, kgrams[1].toArray());
33 Assert.assertArrayEquals(new String[] { "c", "d", "e", "f", }, kgrams[2].toArray());
34 Assert.assertArrayEquals(new String[] { "d", "e", "f", "g", }, kgrams[3].toArray());
38 public void checkPlainKGram2(){
39 KGram<String>[] kgrams = KGramBuilder.getInstance().buildKGram(plainValues, 3);
40 Assert.assertEquals(5, kgrams.length);
42 Assert.assertEquals(3, kgrams[0].getKValue());
43 Assert.assertEquals(3, kgrams[1].getKValue());
44 Assert.assertEquals(3, kgrams[2].getKValue());
45 Assert.assertEquals(3, kgrams[3].getKValue());
46 Assert.assertEquals(3, kgrams[4].getKValue());
48 Assert.assertArrayEquals(new String[] { "a", "b", "c", }, kgrams[0].toArray());
49 Assert.assertArrayEquals(new String[] { "b", "c", "d", }, kgrams[1].toArray());
50 Assert.assertArrayEquals(new String[] { "c", "d", "e", }, kgrams[2].toArray());
51 Assert.assertArrayEquals(new String[] { "d", "e", "f", }, kgrams[3].toArray());
52 Assert.assertArrayEquals(new String[] { "e", "f", "g", }, kgrams[4].toArray());
56 public void checkComplexKGram(){
57 KGram<String>[] kgrams = KGramBuilder.getInstance().buildKGram(complexValues, 3);
59 Assert.assertEquals(7, kgrams.length);
61 Assert.assertArrayEquals(new String[] { "a", "b", "r", }, kgrams[0].toArray());
62 Assert.assertArrayEquals(new String[] { "b", "r", "a", }, kgrams[1].toArray());
63 Assert.assertArrayEquals(new String[] { "r", "a", "c", }, kgrams[2].toArray());
64 Assert.assertArrayEquals(new String[] { "a", "c", "a", }, kgrams[3].toArray());
65 Assert.assertArrayEquals(new String[] { "c", "a", "d", }, kgrams[4].toArray());
66 Assert.assertArrayEquals(new String[] { "a", "d", "a", }, kgrams[5].toArray());
67 Assert.assertArrayEquals(new String[] { "d", "a", "b", }, kgrams[6].toArray());
68 // following kgram is appeared in above.
69 // assertEquals(new String[] { "a", "b", "r", }, kgrams[0].toArray());
70 // assertEquals(new String[] { "b", "r", "a", }, kgrams[1].toArray());