StringUtilsTests.java revision ea7bfa5cd58c4ce0fed5d79c3118d5339ef4e66a 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.inputmethod.latin.utils;
18
19import com.android.inputmethod.latin.settings.SettingsValues;
20
21import android.test.AndroidTestCase;
22import android.test.suitebuilder.annotation.SmallTest;
23
24import java.util.Arrays;
25import java.util.List;
26import java.util.Locale;
27
28@SmallTest
29public class StringUtilsTests extends AndroidTestCase {
30    public void testContainsInArray() {
31        assertFalse("empty array", StringUtils.containsInArray("key", new String[0]));
32        assertFalse("not in 1 element", StringUtils.containsInArray("key", new String[] {
33                "key1"
34        }));
35        assertFalse("not in 2 elements", StringUtils.containsInArray("key", new String[] {
36                "key1", "key2"
37        }));
38
39        assertTrue("in 1 element", StringUtils.containsInArray("key", new String[] {
40                "key"
41        }));
42        assertTrue("in 2 elements", StringUtils.containsInArray("key", new String[] {
43                "key1", "key"
44        }));
45    }
46
47    public void testContainsInExtraValues() {
48        assertFalse("null", StringUtils.containsInCommaSplittableText("key", null));
49        assertFalse("empty", StringUtils.containsInCommaSplittableText("key", ""));
50        assertFalse("not in 1 element",
51                StringUtils.containsInCommaSplittableText("key", "key1"));
52        assertFalse("not in 2 elements",
53                StringUtils.containsInCommaSplittableText("key", "key1,key2"));
54
55        assertTrue("in 1 element", StringUtils.containsInCommaSplittableText("key", "key"));
56        assertTrue("in 2 elements", StringUtils.containsInCommaSplittableText("key", "key1,key"));
57    }
58
59    public void testAppendToExtraValuesIfNotExists() {
60        assertEquals("null", "key",
61                StringUtils.appendToCommaSplittableTextIfNotExists("key", null));
62        assertEquals("empty", "key",
63                StringUtils.appendToCommaSplittableTextIfNotExists("key", ""));
64
65        assertEquals("not in 1 element", "key1,key",
66                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key1"));
67        assertEquals("not in 2 elements", "key1,key2,key",
68                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key1,key2"));
69
70        assertEquals("in 1 element", "key",
71                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key"));
72        assertEquals("in 2 elements at position 1", "key,key2",
73                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key,key2"));
74        assertEquals("in 2 elements at position 2", "key1,key",
75                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key1,key"));
76        assertEquals("in 3 elements at position 2", "key1,key,key3",
77                StringUtils.appendToCommaSplittableTextIfNotExists("key", "key1,key,key3"));
78    }
79
80    public void testRemoveFromExtraValuesIfExists() {
81        assertEquals("null", "", StringUtils.removeFromCommaSplittableTextIfExists("key", null));
82        assertEquals("empty", "", StringUtils.removeFromCommaSplittableTextIfExists("key", ""));
83
84        assertEquals("not in 1 element", "key1",
85                StringUtils.removeFromCommaSplittableTextIfExists("key", "key1"));
86        assertEquals("not in 2 elements", "key1,key2",
87                StringUtils.removeFromCommaSplittableTextIfExists("key", "key1,key2"));
88
89        assertEquals("in 1 element", "",
90                StringUtils.removeFromCommaSplittableTextIfExists("key", "key"));
91        assertEquals("in 2 elements at position 1", "key2",
92                StringUtils.removeFromCommaSplittableTextIfExists("key", "key,key2"));
93        assertEquals("in 2 elements at position 2", "key1",
94                StringUtils.removeFromCommaSplittableTextIfExists("key", "key1,key"));
95        assertEquals("in 3 elements at position 2", "key1,key3",
96                StringUtils.removeFromCommaSplittableTextIfExists("key", "key1,key,key3"));
97
98        assertEquals("in 3 elements at position 1,2,3", "",
99                StringUtils.removeFromCommaSplittableTextIfExists("key", "key,key,key"));
100        assertEquals("in 5 elements at position 2,4", "key1,key3,key5",
101                StringUtils.removeFromCommaSplittableTextIfExists(
102                        "key", "key1,key,key3,key,key5"));
103    }
104
105
106    public void testCapitalizeFirstCodePoint() {
107        assertEquals("SSaa",
108                StringUtils.capitalizeFirstCodePoint("ßaa", Locale.GERMAN));
109        assertEquals("Aßa",
110                StringUtils.capitalizeFirstCodePoint("aßa", Locale.GERMAN));
111        assertEquals("Iab",
112                StringUtils.capitalizeFirstCodePoint("iab", Locale.ENGLISH));
113        assertEquals("CAmElCaSe",
114                StringUtils.capitalizeFirstCodePoint("cAmElCaSe", Locale.ENGLISH));
115        assertEquals("İab",
116                StringUtils.capitalizeFirstCodePoint("iab", new Locale("tr")));
117        assertEquals("AİB",
118                StringUtils.capitalizeFirstCodePoint("AİB", new Locale("tr")));
119        assertEquals("A",
120                StringUtils.capitalizeFirstCodePoint("a", Locale.ENGLISH));
121        assertEquals("A",
122                StringUtils.capitalizeFirstCodePoint("A", Locale.ENGLISH));
123    }
124
125    public void testCapitalizeFirstAndDowncaseRest() {
126        assertEquals("SSaa",
127                StringUtils.capitalizeFirstAndDowncaseRest("ßaa", Locale.GERMAN));
128        assertEquals("Aßa",
129                StringUtils.capitalizeFirstAndDowncaseRest("aßa", Locale.GERMAN));
130        assertEquals("Iab",
131                StringUtils.capitalizeFirstAndDowncaseRest("iab", Locale.ENGLISH));
132        assertEquals("Camelcase",
133                StringUtils.capitalizeFirstAndDowncaseRest("cAmElCaSe", Locale.ENGLISH));
134        assertEquals("İab",
135                StringUtils.capitalizeFirstAndDowncaseRest("iab", new Locale("tr")));
136        assertEquals("Aib",
137                StringUtils.capitalizeFirstAndDowncaseRest("AİB", new Locale("tr")));
138        assertEquals("A",
139                StringUtils.capitalizeFirstAndDowncaseRest("a", Locale.ENGLISH));
140        assertEquals("A",
141                StringUtils.capitalizeFirstAndDowncaseRest("A", Locale.ENGLISH));
142    }
143
144    public void testGetCapitalizationType() {
145        assertEquals(StringUtils.CAPITALIZE_NONE,
146                StringUtils.getCapitalizationType("capitalize"));
147        assertEquals(StringUtils.CAPITALIZE_NONE,
148                StringUtils.getCapitalizationType("cApITalize"));
149        assertEquals(StringUtils.CAPITALIZE_NONE,
150                StringUtils.getCapitalizationType("capitalizE"));
151        assertEquals(StringUtils.CAPITALIZE_NONE,
152                StringUtils.getCapitalizationType("__c a piu$@tali56ze"));
153        assertEquals(StringUtils.CAPITALIZE_FIRST,
154                StringUtils.getCapitalizationType("A__c a piu$@tali56ze"));
155        assertEquals(StringUtils.CAPITALIZE_FIRST,
156                StringUtils.getCapitalizationType("Capitalize"));
157        assertEquals(StringUtils.CAPITALIZE_FIRST,
158                StringUtils.getCapitalizationType("     Capitalize"));
159        assertEquals(StringUtils.CAPITALIZE_ALL,
160                StringUtils.getCapitalizationType("CAPITALIZE"));
161        assertEquals(StringUtils.CAPITALIZE_ALL,
162                StringUtils.getCapitalizationType("  PI26LIE"));
163        assertEquals(StringUtils.CAPITALIZE_NONE,
164                StringUtils.getCapitalizationType(""));
165    }
166
167    public void testIsIdenticalAfterUpcaseIsIdenticalAfterDowncase() {
168        assertFalse(StringUtils.isIdenticalAfterUpcase("capitalize"));
169        assertTrue(StringUtils.isIdenticalAfterDowncase("capitalize"));
170        assertFalse(StringUtils.isIdenticalAfterUpcase("cApITalize"));
171        assertFalse(StringUtils.isIdenticalAfterDowncase("cApITalize"));
172        assertFalse(StringUtils.isIdenticalAfterUpcase("capitalizE"));
173        assertFalse(StringUtils.isIdenticalAfterDowncase("capitalizE"));
174        assertFalse(StringUtils.isIdenticalAfterUpcase("__c a piu$@tali56ze"));
175        assertTrue(StringUtils.isIdenticalAfterDowncase("__c a piu$@tali56ze"));
176        assertFalse(StringUtils.isIdenticalAfterUpcase("A__c a piu$@tali56ze"));
177        assertFalse(StringUtils.isIdenticalAfterDowncase("A__c a piu$@tali56ze"));
178        assertFalse(StringUtils.isIdenticalAfterUpcase("Capitalize"));
179        assertFalse(StringUtils.isIdenticalAfterDowncase("Capitalize"));
180        assertFalse(StringUtils.isIdenticalAfterUpcase("     Capitalize"));
181        assertFalse(StringUtils.isIdenticalAfterDowncase("     Capitalize"));
182        assertTrue(StringUtils.isIdenticalAfterUpcase("CAPITALIZE"));
183        assertFalse(StringUtils.isIdenticalAfterDowncase("CAPITALIZE"));
184        assertTrue(StringUtils.isIdenticalAfterUpcase("  PI26LIE"));
185        assertFalse(StringUtils.isIdenticalAfterDowncase("  PI26LIE"));
186        assertTrue(StringUtils.isIdenticalAfterUpcase(""));
187        assertTrue(StringUtils.isIdenticalAfterDowncase(""));
188    }
189
190    public void testLooksValidForDictionaryInsertion() {
191        final SettingsValues settings =
192                SettingsValues.makeDummySettingsValuesForTest(Locale.ENGLISH);
193        assertTrue(StringUtils.looksValidForDictionaryInsertion("aochaueo", settings));
194        assertFalse(StringUtils.looksValidForDictionaryInsertion("", settings));
195        assertTrue(StringUtils.looksValidForDictionaryInsertion("ao-ch'aueo", settings));
196        assertFalse(StringUtils.looksValidForDictionaryInsertion("2908743256", settings));
197        assertTrue(StringUtils.looksValidForDictionaryInsertion("31aochaueo", settings));
198        assertFalse(StringUtils.looksValidForDictionaryInsertion("akeo  raeoch oerch .", settings));
199        assertFalse(StringUtils.looksValidForDictionaryInsertion("!!!", settings));
200    }
201
202    private static void checkCapitalize(final String src, final String dst, final String separators,
203            final Locale locale) {
204        assertEquals(dst, StringUtils.capitalizeEachWord(src, separators, locale));
205        assert(src.equals(dst)
206                == StringUtils.isIdenticalAfterCapitalizeEachWord(src, separators));
207    }
208
209    public void testCapitalizeEachWord() {
210        checkCapitalize("", "", " ", Locale.ENGLISH);
211        checkCapitalize("test", "Test", " ", Locale.ENGLISH);
212        checkCapitalize("    test", "    Test", " ", Locale.ENGLISH);
213        checkCapitalize("Test", "Test", " ", Locale.ENGLISH);
214        checkCapitalize("    Test", "    Test", " ", Locale.ENGLISH);
215        checkCapitalize(".Test", ".test", " ", Locale.ENGLISH);
216        checkCapitalize(".Test", ".Test", " .", Locale.ENGLISH);
217        checkCapitalize(".Test", ".Test", ". ", Locale.ENGLISH);
218        checkCapitalize("test and retest", "Test And Retest", " .", Locale.ENGLISH);
219        checkCapitalize("Test and retest", "Test And Retest", " .", Locale.ENGLISH);
220        checkCapitalize("Test And Retest", "Test And Retest", " .", Locale.ENGLISH);
221        checkCapitalize("Test And.Retest  ", "Test And.Retest  ", " .", Locale.ENGLISH);
222        checkCapitalize("Test And.retest  ", "Test And.Retest  ", " .", Locale.ENGLISH);
223        checkCapitalize("Test And.retest  ", "Test And.retest  ", " ", Locale.ENGLISH);
224        checkCapitalize("Test And.Retest  ", "Test And.retest  ", " ", Locale.ENGLISH);
225        checkCapitalize("test and ietest", "Test And İetest", " .", new Locale("tr"));
226        checkCapitalize("test and ietest", "Test And Ietest", " .", Locale.ENGLISH);
227        checkCapitalize("Test&Retest", "Test&Retest", " \n.!?*()&", Locale.ENGLISH);
228        checkCapitalize("Test&retest", "Test&Retest", " \n.!?*()&", Locale.ENGLISH);
229        checkCapitalize("test&Retest", "Test&Retest", " \n.!?*()&", Locale.ENGLISH);
230        checkCapitalize("rest\nrecreation! And in the end...",
231                "Rest\nRecreation! And In The End...", " \n.!?*,();&", Locale.ENGLISH);
232        checkCapitalize("lorem ipsum dolor sit amet", "Lorem Ipsum Dolor Sit Amet",
233                " \n.,!?*()&;", Locale.ENGLISH);
234        checkCapitalize("Lorem!Ipsum (Dolor) Sit * Amet", "Lorem!Ipsum (Dolor) Sit * Amet",
235                " \n,.;!?*()&", Locale.ENGLISH);
236        checkCapitalize("Lorem!Ipsum (dolor) Sit * Amet", "Lorem!Ipsum (Dolor) Sit * Amet",
237                " \n,.;!?*()&", Locale.ENGLISH);
238    }
239
240    public void testLooksLikeURL() {
241        assertTrue(StringUtils.lastPartLooksLikeURL("http://www.google."));
242        assertFalse(StringUtils.lastPartLooksLikeURL("word wo"));
243        assertTrue(StringUtils.lastPartLooksLikeURL("/etc/foo"));
244        assertFalse(StringUtils.lastPartLooksLikeURL("left/right"));
245        assertTrue(StringUtils.lastPartLooksLikeURL("www.goo"));
246        assertTrue(StringUtils.lastPartLooksLikeURL("www."));
247        assertFalse(StringUtils.lastPartLooksLikeURL("U.S.A"));
248        assertFalse(StringUtils.lastPartLooksLikeURL("U.S.A."));
249        assertTrue(StringUtils.lastPartLooksLikeURL("rtsp://foo."));
250        assertTrue(StringUtils.lastPartLooksLikeURL("://"));
251        assertFalse(StringUtils.lastPartLooksLikeURL("abc/"));
252        assertTrue(StringUtils.lastPartLooksLikeURL("abc.def/ghi"));
253        assertFalse(StringUtils.lastPartLooksLikeURL("abc.def"));
254        // TODO: ideally this would not look like a URL, but to keep down the complexity of the
255        // code for now True is acceptable.
256        assertTrue(StringUtils.lastPartLooksLikeURL("abc./def"));
257        // TODO: ideally this would not look like a URL, but to keep down the complexity of the
258        // code for now True is acceptable.
259        assertTrue(StringUtils.lastPartLooksLikeURL(".abc/def"));
260    }
261
262    public void testHexStringUtils() {
263        final byte[] bytes = new byte[] { (byte)0x01, (byte)0x11, (byte)0x22, (byte)0x33,
264                (byte)0x55, (byte)0x88, (byte)0xEE };
265        final String bytesStr = StringUtils.byteArrayToHexString(bytes);
266        final byte[] bytes2 = StringUtils.hexStringToByteArray(bytesStr);
267        for (int i = 0; i < bytes.length; ++i) {
268            assertTrue(bytes[i] == bytes2[i]);
269        }
270        final String bytesStr2 = StringUtils.byteArrayToHexString(bytes2);
271        assertTrue(bytesStr.equals(bytesStr2));
272    }
273
274    public void testJsonStringUtils() {
275        final Object[] objs = new Object[] { 1, "aaa", "bbb", 3 };
276        final List<Object> objArray = Arrays.asList(objs);
277        final String str = StringUtils.listToJsonStr(objArray);
278        final List<Object> newObjArray = StringUtils.jsonStrToList(str);
279        for (int i = 0; i < objs.length; ++i) {
280            assertEquals(objs[i], newObjArray.get(i));
281        }
282    }
283}
284