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      1 //  2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html#License
      3 package com.ibm.icu.dev.test.rbbi;
      4 
      5 import java.text.CharacterIterator;
      6 
      7 import org.junit.Before;
      8 import org.junit.Test;
      9 
     10 import com.ibm.icu.dev.test.TestFmwk;
     11 import com.ibm.icu.text.BreakIterator;
     12 
     13 /**
     14  * @author sgill
     15  *
     16  */
     17 public class AbstractBreakIteratorTests extends TestFmwk {
     18 
     19     private class AbstractBreakIterator extends BreakIterator {
     20         private int position = 0;
     21         private static final int LIMIT = 100;
     22 
     23         private int set(int n) {
     24             position = n;
     25             if (position > LIMIT) {
     26                 position = LIMIT;
     27                 return DONE;
     28             }
     29             if (position < 0) {
     30                 position = 0;
     31                 return DONE;
     32             }
     33             return position;
     34         }
     35 
     36         @Override
     37         public int first() {
     38             return set(0);
     39         }
     40 
     41         @Override
     42         public int last() {
     43             return set(LIMIT);
     44         }
     45 
     46         @Override
     47         public int next(int n) {
     48             return set(position + n);
     49         }
     50 
     51         @Override
     52         public int next() {
     53             return next(1);
     54         }
     55 
     56         @Override
     57         public int previous() {
     58             return next(-1);
     59         }
     60 
     61         @Override
     62         public int following(int offset) {
     63             return set(offset + 1);
     64         }
     65 
     66         @Override
     67         public int current() {
     68             return position;
     69         }
     70 
     71         @Override
     72         public CharacterIterator getText() {
     73             return null;
     74         }
     75 
     76         @Override
     77         public void setText(CharacterIterator newText) {
     78         }
     79 
     80     }
     81 
     82     private BreakIterator bi;
     83 
     84     @Before
     85     public void createBreakIterator() {
     86         bi = new AbstractBreakIterator();
     87     }
     88 
     89     @Test
     90     public void testPreceding() {
     91         int pos = bi.preceding(0);
     92         TestFmwk.assertEquals("BreakIterator preceding position not correct", BreakIterator.DONE, pos);
     93 
     94         pos = bi.preceding(5);
     95         TestFmwk.assertEquals("BreakIterator preceding position not correct", 4, pos);
     96     }
     97 
     98     @Test
     99     public void testIsBoundary() {
    100         boolean b = bi.isBoundary(0);
    101         TestFmwk.assertTrue("BreakIterator is boundary not correct", b);
    102 
    103         b = bi.isBoundary(5);
    104         TestFmwk.assertTrue("BreakIterator is boundary not correct", b);
    105     }
    106 
    107 }
    108