1 /*
2 * Copyright (c) 2018, 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 /*
25 * @test
26 * @summary Unit tests for String#unescape
27 * @compile --enable-preview -source 12 -encoding utf8 Unescape.java
28 * @run main/othervm --enable-preview Unescape
29 */
30
31 @SuppressWarnings( "deprecation" )
32 public class Unescape {
33 public static void main(String[] args) {
34 System.err.println("HERE:" + (`a\tb\u0063`) + ":");
35 test1();
36 test2();
37 }
38
39 /*
40 * Test unescaping functionality.
41 */
42 static void test1() {
43 equal(`a\tb\u0063`, "a\\tb\\u0063");
44 equal(`a\tb\u0063`.unescape(), "a\tbc");
45 equal(`a\tb\u2022`, "a\\tb\\u2022");
46 equal(`a\tb\u2022`.unescape(), "a\tb\u2022");
47 equal(`\0\12\012`.unescape(), "\0\12\012");
48 equal(`•\0\12\012`.unescape(), "\u2022\0\12\012");
49
50 equal(`\b`.unescape(), "\b");
51 equal(`\f`.unescape(), "\f");
52 equal(`\n`.unescape(), "\n");
53 equal(`\r`.unescape(), "\r");
54 equal(`\t`.unescape(), "\t");
55 equal(`\0`.unescape(), "\0");
56 equal(`\7`.unescape(), "\7");
57 equal(`\12`.unescape(), "\12");
58 equal(`\012`.unescape(), "\012");
59 equal(`\u0000`.unescape(), "\u0000");
60 equal(`\u2022`.unescape(), "\u2022");
61 equal(`•\b`.unescape(), "•\b");
62 equal(`•\f`.unescape(), "•\f");
63 equal(`•\n`.unescape(), "•\n");
64 equal(`•\r`.unescape(), "•\r");
65 equal(`•\t`.unescape(), "•\t");
66 equal(`•\0`.unescape(), "•\0");
67 equal(`•\7`.unescape(), "•\7");
68 equal(`•\12`.unescape(), "•\12");
69 equal(`•\177`.unescape(), "•\177");
70 equal(`•\u0000`.unescape(), "•\u0000");
71 equal(`•\u2022`.unescape(), "•\u2022");
72
73 equal(`\u005c\u0072`.unescape(), "\r");
74 }
75
76 /*
77 * Test for IllegalArgumentException.
78 */
79 static void test2() {
80 wellFormed(`\b`);
81 wellFormed(`\f`);
82 wellFormed(`\n`);
83 wellFormed(`\r`);
84 wellFormed(`\t`);
85 wellFormed(`\0`);
86 wellFormed(`\7`);
87 wellFormed(`\12`);
88 wellFormed(`\012`);
89 wellFormed(`\u0000`);
90 wellFormed(`\u2022`);
91 wellFormed(`•\b`);
92 wellFormed(`•\f`);
93 wellFormed(`•\n`);
94 wellFormed(`•\r`);
95 wellFormed(`•\t`);
96 wellFormed(`•\0`);
97 wellFormed(`•\7`);
98 wellFormed(`•\12`);
99 wellFormed(`•\012`);
100 wellFormed(`•\u0000`);
101 wellFormed(`•\u2022`);
102
103 malformed(`\x`);
104 malformed(`\+`);
105 malformed(`\u`);
106 malformed(`\uuuuu`);
107 malformed(`\u2`);
108 malformed(`\u20`);
109 malformed(`\u202`);
110 malformed(`\u2 `);
111 malformed(`\u20 `);
112 malformed(`\u202 `);
113 malformed(`\uuuuu2`);
114 malformed(`\uuuuu20`);
115 malformed(`\uuuuu202`);
116 malformed(`\uuuuu2 `);
117 malformed(`\uuuuu20 `);
118 malformed(`\uuuuu202 `);
119 malformed(`\uG`);
120 malformed(`\u2G`);
121 malformed(`\u20G`);
122 malformed(`\uG `);
123 malformed(`\u2G `);
124 malformed(`\u20G `);
125 malformed(`\uuuuuG`);
126 malformed(`\uuuuu2G`);
127 malformed(`\uuuuu20G`);
128 malformed(`\uuuuuG `);
129 malformed(`\uuuuu2G `);
130 malformed(`\uuuuu20G `);
131
132 malformed(`•\x`);
133 malformed(`•\+`);
134 malformed(`•\u`);
135 malformed(`•\uuuuu`);
136 malformed(`•\u2`);
137 malformed(`•\u20`);
138 malformed(`•\u202`);
139 malformed(`•\u2 `);
140 malformed(`•\u20 `);
141 malformed(`•\u202 `);
142 malformed(`•\uuuuu2`);
143 malformed(`•\uuuuu20`);
144 malformed(`•\uuuuu202`);
145 malformed(`•\uuuuu2 `);
146 malformed(`•\uuuuu20 `);
147 malformed(`•\uuuuu202 `);
148 malformed(`•\uG`);
149 malformed(`•\u2G`);
150 malformed(`•\u20G`);
151 malformed(`•\uG `);
152 malformed(`•\u2G `);
153 malformed(`•\u20G `);
154 malformed(`•\uuuuuG`);
155 malformed(`•\uuuuu2G`);
156 malformed(`•\uuuuu20G`);
157 malformed(`•\uuuuuG `);
158 malformed(`•\uuuuu2G `);
159 malformed(`•\uuuuu20G `);
160 }
161
162 /*
163 * Report difference in result.
164 */
165 static void report(String message, String inputTag, String input,
166 String outputTag, String output) {
167 System.err.println(message);
168 System.err.println();
169 System.err.println(inputTag);
170 System.err.println(input.replaceAll(" ", "."));
171 System.err.println();
172 System.err.println(outputTag);
173 System.err.println(output.replaceAll(" ", "."));
174 throw new RuntimeException();
175 }
176
177 /*
178 * Raise an exception if the two inputs are not equivalent.
179 */
180 static void equal(String input, String expected) {
181 if (input == null || expected == null || !expected.equals(input)) {
182 report("Failed equal", "Input:", input, "Expected:", expected);
183 }
184 }
185
186 /*
187 * Raise an exception if the string contains a malformed escape.
188 */
189 static void wellFormed(String rawString) {
190 try {
191 rawString.unescape();
192 } catch (IllegalArgumentException ex) {
193 System.err.println("Failed wellFormed");
194 System.err.println(rawString);
195 throw new RuntimeException();
196 }
197 }
198
199 /*
200 * Raise an exception if the string does not contain a malformed escape.
201 */
202 static void malformed(String rawString) {
203 try {
204 rawString.unescape();
205 System.err.println("Failed malformed");
206 System.err.println(rawString);
207 throw new RuntimeException();
208 } catch (IllegalArgumentException ex) {
209 // incorrectly formed escapes
210 }
211 }
212 }