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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      https://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.codec.language.bm;
19  
20  import static org.junit.jupiter.api.Assertions.assertEquals;
21  import static org.junit.jupiter.api.Assertions.assertTrue;
22  
23  import org.junit.jupiter.api.Test;
24  
25  /**
26   * Tests Rule.
27   */
28  class RuleTest {
29  
30      private Rule.Phoneme[][] makePhonemes() {
31          final String[][] words = { { "rinD", "rinDlt", "rina", "rinalt", "rino", "rinolt", "rinu", "rinult" },
32                  { "dortlaj", "dortlej", "ortlaj", "ortlej", "ortlej-dortlaj" } };
33          final Rule.Phoneme[][] phonemes = new Rule.Phoneme[words.length][];
34          for (int i = 0; i < words.length; i++) {
35              final String[] words_i = words[i];
36              final Rule.Phoneme[] phonemes_i = phonemes[i] = new Rule.Phoneme[words_i.length];
37              for (int j = 0; j < words_i.length; j++) {
38                  phonemes_i[j] = new Rule.Phoneme(words_i[j], Languages.NO_LANGUAGES);
39              }
40          }
41          return phonemes;
42      }
43  
44      @Test
45      void testParsePhonemeExprLang311() {
46          assertEquals(1, Rule.parsePhonemeExpr("()").size());
47          assertEquals(1, Rule.parsePhonemeExpr("(())").size());
48          assertEquals(2, Rule.parsePhonemeExpr("(()|)").size());
49          assertEquals(2, Rule.parsePhonemeExpr("(|())").size());
50          assertEquals(3, Rule.parsePhonemeExpr("(|()|)").size());
51      }
52  
53      @Test
54      void testPhonemeComparedToLaterIsNegative() {
55          for (final Rule.Phoneme[] phs : makePhonemes()) {
56              for (int i = 0; i < phs.length; i++) {
57                  for (int j = i + 1; j < phs.length; j++) {
58                      final int c = Rule.Phoneme.COMPARATOR.compare(phs[i], phs[j]);
59                      assertTrue(Integer.valueOf(c).intValue() < 0,
60                              "Comparing " + phs[i].getPhonemeText() + " to " + phs[j].getPhonemeText() + " should be negative");
61                  }
62              }
63          }
64      }
65  
66      @Test
67      void testPhonemeComparedToSelfIsZero() {
68          for (final Rule.Phoneme[] phs : makePhonemes()) {
69              for (final Rule.Phoneme ph : phs) {
70                  assertEquals(0, Rule.Phoneme.COMPARATOR.compare(ph, ph), "Phoneme compared to itself should be zero: " + ph.getPhonemeText());
71              }
72          }
73      }
74  
75      @Test
76      void testSubSequenceWorks() {
77          // AppendableCharSequence is private to Rule. We can only make it through a Phoneme.
78          final Rule.Phoneme a = new Rule.Phoneme("a", null);
79          final Rule.Phoneme b = new Rule.Phoneme("b", null);
80          final Rule.Phoneme cd = new Rule.Phoneme("cd", null);
81          final Rule.Phoneme ef = new Rule.Phoneme("ef", null);
82          final Rule.Phoneme ghi = new Rule.Phoneme("ghi", null);
83          final Rule.Phoneme jkl = new Rule.Phoneme("jkl", null);
84          assertEquals('a', a.getPhonemeText().charAt(0));
85          assertEquals('b', b.getPhonemeText().charAt(0));
86          assertEquals('c', cd.getPhonemeText().charAt(0));
87          assertEquals('d', cd.getPhonemeText().charAt(1));
88          assertEquals('e', ef.getPhonemeText().charAt(0));
89          assertEquals('f', ef.getPhonemeText().charAt(1));
90          assertEquals('g', ghi.getPhonemeText().charAt(0));
91          assertEquals('h', ghi.getPhonemeText().charAt(1));
92          assertEquals('i', ghi.getPhonemeText().charAt(2));
93          assertEquals('j', jkl.getPhonemeText().charAt(0));
94          assertEquals('k', jkl.getPhonemeText().charAt(1));
95          assertEquals('l', jkl.getPhonemeText().charAt(2));
96          final Rule.Phoneme a_b = new Rule.Phoneme(a, b);
97          assertEquals('a', a_b.getPhonemeText().charAt(0));
98          assertEquals('b', a_b.getPhonemeText().charAt(1));
99          assertEquals("ab", a_b.getPhonemeText().subSequence(0, 2).toString());
100         assertEquals("a", a_b.getPhonemeText().subSequence(0, 1).toString());
101         assertEquals("b", a_b.getPhonemeText().subSequence(1, 2).toString());
102         final Rule.Phoneme cd_ef = new Rule.Phoneme(cd, ef);
103         assertEquals('c', cd_ef.getPhonemeText().charAt(0));
104         assertEquals('d', cd_ef.getPhonemeText().charAt(1));
105         assertEquals('e', cd_ef.getPhonemeText().charAt(2));
106         assertEquals('f', cd_ef.getPhonemeText().charAt(3));
107         assertEquals("c", cd_ef.getPhonemeText().subSequence(0, 1).toString());
108         assertEquals("d", cd_ef.getPhonemeText().subSequence(1, 2).toString());
109         assertEquals("e", cd_ef.getPhonemeText().subSequence(2, 3).toString());
110         assertEquals("f", cd_ef.getPhonemeText().subSequence(3, 4).toString());
111         assertEquals("cd", cd_ef.getPhonemeText().subSequence(0, 2).toString());
112         assertEquals("de", cd_ef.getPhonemeText().subSequence(1, 3).toString());
113         assertEquals("ef", cd_ef.getPhonemeText().subSequence(2, 4).toString());
114         assertEquals("cde", cd_ef.getPhonemeText().subSequence(0, 3).toString());
115         assertEquals("def", cd_ef.getPhonemeText().subSequence(1, 4).toString());
116         assertEquals("cdef", cd_ef.getPhonemeText().subSequence(0, 4).toString());
117         final Rule.Phoneme a_b_cd = new Rule.Phoneme(new Rule.Phoneme(a, b), cd);
118         assertEquals('a', a_b_cd.getPhonemeText().charAt(0));
119         assertEquals('b', a_b_cd.getPhonemeText().charAt(1));
120         assertEquals('c', a_b_cd.getPhonemeText().charAt(2));
121         assertEquals('d', a_b_cd.getPhonemeText().charAt(3));
122         assertEquals("a", a_b_cd.getPhonemeText().subSequence(0, 1).toString());
123         assertEquals("b", a_b_cd.getPhonemeText().subSequence(1, 2).toString());
124         assertEquals("c", a_b_cd.getPhonemeText().subSequence(2, 3).toString());
125         assertEquals("d", a_b_cd.getPhonemeText().subSequence(3, 4).toString());
126         assertEquals("ab", a_b_cd.getPhonemeText().subSequence(0, 2).toString());
127         assertEquals("bc", a_b_cd.getPhonemeText().subSequence(1, 3).toString());
128         assertEquals("cd", a_b_cd.getPhonemeText().subSequence(2, 4).toString());
129         assertEquals("abc", a_b_cd.getPhonemeText().subSequence(0, 3).toString());
130         assertEquals("bcd", a_b_cd.getPhonemeText().subSequence(1, 4).toString());
131         assertEquals("abcd", a_b_cd.getPhonemeText().subSequence(0, 4).toString());
132     }
133 }