1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html#License
3/*
4 *******************************************************************************
5 * Copyright (C) 1996-2010, International Business Machines Corporation and    *
6 * others. All Rights Reserved.                                                *
7 *******************************************************************************
8 */
9package com.ibm.icu.dev.test.rbbi;
10
11import java.text.CharacterIterator;
12import java.util.Arrays;
13import java.util.Locale;
14
15import org.junit.Test;
16
17import com.ibm.icu.dev.test.TestFmwk;
18import com.ibm.icu.text.BreakIterator;
19
20public class BreakIteratorRegTest extends TestFmwk
21{
22    @Test
23    public void TestRegUnreg() {
24    Locale thailand_locale = new Locale("th", "TH", "");
25    Locale foo_locale = new Locale("fu", "FU", "FOO");
26    BreakIterator jwbi = BreakIterator.getWordInstance(Locale.JAPAN);
27    BreakIterator uwbi = BreakIterator.getWordInstance(Locale.US);
28    BreakIterator usbi = BreakIterator.getSentenceInstance(Locale.US);
29    BreakIterator twbi = BreakIterator.getWordInstance(thailand_locale);
30    BreakIterator rwbi = BreakIterator.getWordInstance(new Locale("", "", ""));
31
32    BreakIterator sbi = (BreakIterator)usbi.clone();
33    // todo: this will cause the test to fail, no way to set a breakiterator to null text so can't fix yet.
34    // String text = "This is some test, by golly. Boy, they don't make tests like they used to, do they?  This here test ain't worth $2.50.  Nope.";
35    // sbi.setText(text);
36
37    assertTrue(!BreakIterator.unregister(""), "unregister before register"); // coverage
38
39    Object key0 = BreakIterator.registerInstance((BreakIterator)twbi.clone(), foo_locale, BreakIterator.KIND_WORD);
40    Object key1 = BreakIterator.registerInstance(sbi, Locale.US, BreakIterator.KIND_WORD);
41    Object key2 = BreakIterator.registerInstance((BreakIterator)twbi.clone(), Locale.US, BreakIterator.KIND_WORD);
42
43    {
44        BreakIterator test0 = BreakIterator.getWordInstance(Locale.JAPAN);
45        BreakIterator test1 = BreakIterator.getWordInstance(Locale.US);
46        BreakIterator test2 = BreakIterator.getSentenceInstance(Locale.US);
47        BreakIterator test3 = BreakIterator.getWordInstance(thailand_locale);
48        BreakIterator test4 = BreakIterator.getWordInstance(foo_locale);
49
50        assertEqual(test0, jwbi, "japan word == japan word");
51        assertEqual(test1, twbi, "us word == thai word");
52        assertEqual(test2, usbi, "us sentence == us sentence");
53        assertEqual(test3, twbi, "thai word == thai word");
54        assertEqual(test4, twbi, "foo word == thai word");
55    }
56
57    //Locale[] locales = BreakIterator.getAvailableLocales();
58
59    assertTrue(BreakIterator.unregister(key2), "unregister us word (thai word)");
60    assertTrue(!BreakIterator.unregister(key2), "unregister second time");
61    boolean error = false;
62    try {
63        BreakIterator.unregister(null);
64    }
65    catch (IllegalArgumentException e) {
66        error = true;
67    }
68
69    assertTrue(error, "unregister null");
70
71    {
72        CharacterIterator sci = BreakIterator.getWordInstance(Locale.US).getText();
73        int len = sci.getEndIndex() - sci.getBeginIndex();
74        assertEqual(len, 0, "us word text: " + getString(sci));
75    }
76
77    assertTrue(Arrays.asList(BreakIterator.getAvailableLocales()).contains(foo_locale), "foo_locale");
78    assertTrue(BreakIterator.unregister(key0), "unregister foo word (thai word)");
79    assertTrue(!Arrays.asList(BreakIterator.getAvailableLocales()).contains(foo_locale), "no foo_locale");
80    assertEqual(BreakIterator.getWordInstance(Locale.US), usbi, "us word == us sentence");
81
82    assertTrue(BreakIterator.unregister(key1), "unregister us word (us sentence)");
83    {
84        BreakIterator test0 = BreakIterator.getWordInstance(Locale.JAPAN);
85        BreakIterator test1 = BreakIterator.getWordInstance(Locale.US);
86        BreakIterator test2 = BreakIterator.getSentenceInstance(Locale.US);
87        BreakIterator test3 = BreakIterator.getWordInstance(thailand_locale);
88        BreakIterator test4 = BreakIterator.getWordInstance(foo_locale);
89
90        assertEqual(test0, jwbi, "japanese word break");
91        assertEqual(test1, uwbi, "us sentence-word break");
92        assertEqual(test2, usbi, "us sentence break");
93        assertEqual(test3, twbi, "thai word break");
94        assertEqual(test4, rwbi, "root word break");
95
96        CharacterIterator sci = test1.getText();
97        int len = sci.getEndIndex() - sci.getBeginIndex();
98        assertEqual(len, 0, "us sentence-word break text: " + getString(sci));
99    }
100    }
101
102    private void assertEqual(Object lhs, Object rhs, String msg) {
103    msg(msg, lhs.equals(rhs) ? LOG : ERR, true, true);
104    }
105
106    private void assertEqual(int lhs, int rhs, String msg) {
107    msg(msg, lhs == rhs ? LOG : ERR, true, true);
108    }
109
110    private void assertTrue(boolean arg, String msg) {
111    msg(msg, arg ? LOG : ERR, true, true);
112    }
113
114    private static String getString(CharacterIterator ci) {
115    StringBuffer buf = new StringBuffer(ci.getEndIndex() - ci.getBeginIndex() + 2);
116    buf.append("'");
117    for (char c = ci.first(); c != CharacterIterator.DONE; c = ci.next()) {
118        buf.append(c);
119    }
120    buf.append("'");
121    return buf.toString();
122    }
123}
124