1 /*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /* @test
25 * @bug 8058779 8054307
26 * @library /test/lib
27 * @build jdk.test.lib.RandomFactory
28 * @run testng LiteralReplace
29 * @summary Basic tests of String.replace(CharSequence, CharSequence)
30 * @key randomness
31 */
32
33 import java.util.ArrayList;
34 import java.util.Arrays;
35 import java.util.Iterator;
36 import java.util.regex.Matcher;
37 import java.util.regex.Pattern;
38 import java.util.Random;
39
40 import jdk.test.lib.RandomFactory;
41
42 import org.testng.annotations.Test;
43 import org.testng.annotations.DataProvider;
44 import static org.testng.Assert.fail;
45
46 public class LiteralReplace {
47
48 @Test(dataProvider="sourceTargetReplacementExpected")
49 public void testExpected(String source, String target,
50 String replacement, String expected)
51 {
52 String canonical = canonicalReplace(source, target, replacement);
53 if (!canonical.equals(expected)) {
54 fail("Canonical: " + canonical + " != " + expected);
55 }
56 test0(source, target, replacement, expected);
57 }
58
59 @Test(dataProvider="sourceTargetReplacement")
60 public void testCanonical(String source, String target,
61 String replacement)
62 {
63 String canonical = canonicalReplace(source, target, replacement);
64 test0(source, target, replacement, canonical);
65 }
66
67 private void test0(String source, String target, String replacement,
68 String expected)
69 {
70 String result = source.replace(target, replacement);
71 if (!result.equals(expected)) {
72 fail(result + " != " + expected);
73 }
74 }
75
76 @Test(dataProvider="sourceTargetReplacementWithNull",
77 expectedExceptions = {NullPointerException.class})
78 public void testNPE(String source, String target, String replacement) {
79 source.replace(target, replacement);
80 }
81
82
83 @DataProvider
84 public static Object[][] sourceTargetReplacementExpected() {
85 return new Object[][] {
86 {"aaa", "aa", "b", "ba"},
87 {"abcdefgh", "def", "DEF", "abcDEFgh"},
88 {"abcdefgh", "123", "DEF", "abcdefgh"},
89 {"abcdefgh", "abcdefghi", "DEF", "abcdefgh"},
90 {"abcdefghabc", "abc", "DEF", "DEFdefghDEF"},
91 {"abcdefghdef", "def", "", "abcgh"},
92 {"abcdefgh", "", "_", "_a_b_c_d_e_f_g_h_"},
93 {"", "", "", ""},
94 {"", "a", "b", ""},
95 {"", "", "abc", "abc"},
96 {"abcdefgh", "abcdefgh", "abcdefgh", "abcdefgh"},
97 {"abcdefgh", "abcdefgh", "abcdefghi", "abcdefghi"},
98 {"abcdefgh", "abcdefgh", "", ""},
99 {"abcdabcd", "abcd", "", ""},
100 {"aaaaaaaaa", "aa", "_X_", "_X__X__X__X_a"},
101 {"aaaaaaaaa", "aa", "aaa", "aaaaaaaaaaaaa"},
102 {"aaaaaaaaa", "aa", "aa", "aaaaaaaaa"},
103 {"a.c.e.g.", ".", "-", "a-c-e-g-"},
104 {"abcdefgh", "[a-h]", "X", "abcdefgh"},
105 {"aa+", "a+", "", "a"},
106 {"^abc$", "abc", "x", "^x$"},
107
108 // more with non-latin1 characters
109 {"\u4e00\u4e00\u4e00",
110 "\u4e00\u4e00",
111 "\u4e01",
112 "\u4e01\u4e00"},
113
114 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08",
115 "\u4e03\u4e04\u4e05",
116 "\u4e10\u4e11\u4e12",
117 "\u4e00\u4e01\u4e02\u4e10\u4e11\u4e12\u4e06\u4e07\u4e08"},
118
119 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08",
120 "ABC",
121 "\u4e10\u4e11\u4e12",
122 "\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08"},
123
124 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e02\u4e03\u4e07\u4e08",
125 "\u4e02\u4e03",
126 "\u4e12\u4e13",
127 "\u4e00\u4e01\u4e12\u4e13\u4e04\u4e12\u4e13\u4e07\u4e08"},
128
129 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e02\u4e03\u4e07\u4e08",
130 "\u4e02\u4e03",
131 "ab",
132 "\u4e00\u4e01ab\u4e04ab\u4e07\u4e08"},
133
134 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07",
135 "",
136 "_",
137 "_\u4e00_\u4e01_\u4e02_\u4e03_\u4e04_\u4e05_\u4e06_\u4e07_"},
138 {"^\u4e00\u4e01\u4e02$",
139 "\u4e00\u4e01\u4e02",
140 "\u4e03",
141 "^\u4e03$"},
142
143 {"", "\u4e00", "\u4e01", ""},
144 {"", "", "\u4e00\u4e01\u4e02", "\u4e00\u4e01\u4e02"},
145
146 {"^\u4e00\u4e01\u4e02$",
147 "\u4e00\u4e01\u4e02",
148 "X",
149 "^X$"},
150
151 {"abcdefgh",
152 "def",
153 "\u4e01",
154 "abc\u4e01gh"},
155
156 {"abcdefgh",
157 "def",
158 "\u4e01\u4e02",
159 "abc\u4e01\u4e02gh"},
160
161 {"abcdefabcgh",
162 "abc",
163 "\u4e01\u4e02",
164 "\u4e01\u4e02def\u4e01\u4e02gh"},
165
166 {"abcdefabcghabc",
167 "abc",
168 "\u4e01\u4e02",
169 "\u4e01\u4e02def\u4e01\u4e02gh\u4e01\u4e02"},
170
171 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
172 "\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
173 "abcd",
174 "abcd"},
175
176 {"\u4e00\u4e01",
177 "\u4e00\u4e01",
178 "abcdefg",
179 "abcdefg"},
180
181 {"\u4e00\u4e01xyz",
182 "\u4e00\u4e01",
183 "abcdefg",
184 "abcdefgxyz"},
185
186 {"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
187 "\u4e00\u4e00",
188 "\u4e00\u4e00\u4e00",
189 "\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00"},
190
191 {"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
192 "\u4e00\u4e00\u4e00",
193 "\u4e00\u4e00",
194 "\u4e00\u4e00\u4e00\u4e00"},
195
196 {"\u4e00.\u4e01.\u4e02.\u4e03.\u4e04.",
197 ".",
198 "-",
199 "\u4e00-\u4e01-\u4e02-\u4e03-\u4e04-"},
200
201 {"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
202 "\u4e00",
203 "",
204 ""},
205
206 {"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
207 "\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
208 "",
209 ""},
210 };
211 }
212
213 @DataProvider
214 public static Iterator<Object[]> sourceTargetReplacement() {
215 ArrayList<Object[]> list = new ArrayList<>();
216 for (int maxSrcLen = 1; maxSrcLen <= (1 << 10); maxSrcLen <<= 1) {
217 for (int maxTrgLen = 1; maxTrgLen <= (1 << 10); maxTrgLen <<= 1) {
218 for (int maxPrlLen = 1; maxPrlLen <= (1 << 10); maxPrlLen <<= 1) {
219 list.add(makeArray(makeRandomString(maxSrcLen),
220 makeRandomString(maxTrgLen),
221 makeRandomString(maxPrlLen)));
222
223 String source = makeRandomString(maxSrcLen);
224 list.add(makeArray(source,
225 mekeRandomSubstring(source, maxTrgLen),
226 makeRandomString(maxPrlLen)));
227 }
228 }
229 }
230 return list.iterator();
231 }
232
233 @DataProvider
234 public static Iterator<Object[]> sourceTargetReplacementWithNull() {
235 ArrayList<Object[]> list = new ArrayList<>();
236 Object[] arr = {null, "", "a", "b", "string", "str", "ababstrstr"};
237 for (int i = 0; i < arr.length; ++i) {
238 for (int j = 0; j < arr.length; ++j) {
239 for (int k = 0; k < arr.length; ++k) {
240 if (arr[i] != null && (arr[j] == null || arr[k] == null)) {
241 list.add(makeArray(arr[i], arr[j], arr[k]));
242 }
243 }
244 }
245 }
246 return list.iterator();
247 }
248
249 // utilities
250
251 /**
252 * How the String.replace(CharSequence, CharSequence) used to be implemented
253 */
254 private static String canonicalReplace(String source, String target, String replacement) {
255 return Pattern.compile(target.toString(), Pattern.LITERAL).matcher(
256 source).replaceAll(Matcher.quoteReplacement(replacement.toString()));
257 }
258
259 private static final Random random = RandomFactory.getRandom();
260
261 private static final char[] CHARS = ("qwertyuiop[]12345678" +
262 "90-=\\`asdfghjkl;'zxcvbnm,./~!@#$%^&*()_+|QWERTYUIOP{" +
263 "}ASDFGHJKL:\"ZXCVBNM<>?\n\r\t\u0444\u044B\u0432\u0430").toCharArray();
264
265 private static String makeRandomString(int maxLen) {
266 int len = random.nextInt(maxLen);
267 char[] buf = new char[len];
268 for (int i = 0; i < len; ++i) {
269 buf[i] = CHARS[random.nextInt(CHARS.length)];
270 }
271 return new String(buf);
272 }
273
274 private static String mekeRandomSubstring(String source, int maxLen) {
275 if (source.isEmpty()) {
276 return source;
277 }
278 int pos = random.nextInt(source.length());
279 int len = Integer.min(source.length() - pos,
280 random.nextInt(maxLen));
281 return source.substring(pos, pos + len);
282 }
283
284 private static Object[] makeArray(Object... array) {
285 return array;
286 }
287 }