1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27
28#define WTF_STRINGTYPEADAPTER_COPIED_WTF_STRING() (++wtfStringCopyCount)
29
30static int wtfStringCopyCount;
31
32#include <wtf/text/StringView.h>
33#include <wtf/text/WTFString.h>
34
35namespace TestWebKitAPI {
36
37#define EXPECT_N_WTF_STRING_COPIES(count, expr) \
38 do { \
39 wtfStringCopyCount = 0; \
40 String __testString = expr; \
41 (void)__testString; \
42 EXPECT_EQ(count, wtfStringCopyCount) << #expr; \
43 } while (false)
44
45TEST(WTF, StringOperators)
46{
47 String string("String");
48 AtomicString atomicString("AtomicString");
49 ASCIILiteral literal { "ASCIILiteral"_s };
50
51 String stringViewBacking { "StringView" };
52 StringView stringView { stringViewBacking };
53
54 EXPECT_EQ(0, wtfStringCopyCount);
55
56 EXPECT_N_WTF_STRING_COPIES(2, string + string);
57 EXPECT_N_WTF_STRING_COPIES(2, string + atomicString);
58 EXPECT_N_WTF_STRING_COPIES(2, atomicString + string);
59 EXPECT_N_WTF_STRING_COPIES(2, atomicString + atomicString);
60 EXPECT_N_WTF_STRING_COPIES(1, stringView + string);
61 EXPECT_N_WTF_STRING_COPIES(1, string + stringView);
62 EXPECT_N_WTF_STRING_COPIES(1, stringView + atomicString);
63 EXPECT_N_WTF_STRING_COPIES(1, atomicString + stringView);
64
65 EXPECT_N_WTF_STRING_COPIES(1, "C string" + string);
66 EXPECT_N_WTF_STRING_COPIES(1, string + "C string");
67 EXPECT_N_WTF_STRING_COPIES(1, "C string" + atomicString);
68 EXPECT_N_WTF_STRING_COPIES(1, atomicString + "C string");
69 EXPECT_N_WTF_STRING_COPIES(0, "C string" + stringView);
70 EXPECT_N_WTF_STRING_COPIES(0, stringView + "C string");
71
72 EXPECT_N_WTF_STRING_COPIES(1, literal + string);
73 EXPECT_N_WTF_STRING_COPIES(1, string + literal);
74 EXPECT_N_WTF_STRING_COPIES(1, literal + atomicString);
75 EXPECT_N_WTF_STRING_COPIES(1, atomicString + literal);
76 EXPECT_N_WTF_STRING_COPIES(0, literal + stringView);
77 EXPECT_N_WTF_STRING_COPIES(0, stringView + literal);
78
79 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + "C string" + string);
80 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + "C string" + string));
81 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + ("C string" + string));
82 EXPECT_N_WTF_STRING_COPIES(2, string + "C string" + string + "C string");
83 EXPECT_N_WTF_STRING_COPIES(2, string + ("C string" + string + "C string"));
84 EXPECT_N_WTF_STRING_COPIES(2, (string + "C string") + (string + "C string"));
85
86 EXPECT_N_WTF_STRING_COPIES(2, literal + string + literal + string);
87 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + literal + string));
88 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + (literal + string));
89 EXPECT_N_WTF_STRING_COPIES(2, string + literal + string + literal);
90 EXPECT_N_WTF_STRING_COPIES(2, string + (literal + string + literal));
91 EXPECT_N_WTF_STRING_COPIES(2, (string + literal) + (string + literal));
92
93 EXPECT_N_WTF_STRING_COPIES(2, literal + string + "C string" + string);
94 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + "C string" + string));
95 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + ("C string" + string));
96 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + literal + string);
97 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + literal + string));
98 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + (literal + string));
99
100 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + "C string" + atomicString);
101 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + "C string" + atomicString));
102 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + ("C string" + atomicString));
103 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + literal + atomicString);
104 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + literal + atomicString));
105 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + (literal + atomicString));
106
107 EXPECT_N_WTF_STRING_COPIES(0, literal + stringView + "C string" + stringView);
108 EXPECT_N_WTF_STRING_COPIES(0, literal + (stringView + "C string" + stringView));
109 EXPECT_N_WTF_STRING_COPIES(0, (literal + stringView) + ("C string" + stringView));
110 EXPECT_N_WTF_STRING_COPIES(0, "C string" + stringView + literal + stringView);
111 EXPECT_N_WTF_STRING_COPIES(0, "C string" + (stringView + literal + stringView));
112 EXPECT_N_WTF_STRING_COPIES(0, ("C string" + stringView) + (literal + stringView));
113
114 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + "C string" + string + literal + stringView);
115 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + "C string" + string + literal + stringView));
116 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + ("C string" + string) + (literal + stringView));
117 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + literal + string + literal + stringView);
118 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + literal + string + literal + stringView));
119 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + (literal + string) + (literal + stringView));
120
121 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + "C string" + stringView + literal + string);
122 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + "C string" + stringView + literal + string));
123 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + ("C string" + stringView) + (literal + string));
124 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + literal + stringView + literal + string);
125 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + literal + stringView + literal + string));
126 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + (literal + stringView) + (literal + string));
127
128 EXPECT_N_WTF_STRING_COPIES(2, literal + string + "C string" + atomicString + literal + stringView);
129 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + "C string" + atomicString + literal + stringView));
130 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + ("C string" + atomicString) + (literal + stringView));
131 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + literal + atomicString + literal + stringView);
132 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + literal + atomicString + literal + stringView));
133 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + (literal + atomicString) + (literal + stringView));
134
135 EXPECT_N_WTF_STRING_COPIES(2, literal + string + "C string" + stringView + literal + atomicString);
136 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + "C string" + stringView + literal + atomicString));
137 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + ("C string" + stringView) + (literal + atomicString));
138 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + literal + stringView + literal + atomicString);
139 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + literal + stringView + literal + atomicString));
140 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + (literal + stringView) + (literal + atomicString));
141
142 EXPECT_N_WTF_STRING_COPIES(2, literal + stringView + "C string" + atomicString + literal + string);
143 EXPECT_N_WTF_STRING_COPIES(2, literal + (stringView + "C string" + atomicString + literal + string));
144 EXPECT_N_WTF_STRING_COPIES(2, (literal + stringView) + ("C string" + atomicString) + (literal + string));
145 EXPECT_N_WTF_STRING_COPIES(2, "C string" + stringView + literal + atomicString + literal + string);
146 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (stringView + literal + atomicString + literal + string));
147 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + stringView) + (literal + atomicString) + (literal + string));
148
149 EXPECT_N_WTF_STRING_COPIES(2, literal + stringView + "C string" + string + literal + atomicString);
150 EXPECT_N_WTF_STRING_COPIES(2, literal + (stringView + "C string" + string + literal + atomicString));
151 EXPECT_N_WTF_STRING_COPIES(2, (literal + stringView) + ("C string" + string) + (literal + atomicString));
152 EXPECT_N_WTF_STRING_COPIES(2, "C string" + stringView + literal + string + literal + atomicString);
153 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (stringView + literal + string + literal + atomicString));
154 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + stringView) + (literal + string) + (literal + atomicString));
155
156 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + "C string" + atomicString);
157 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + "C string" + atomicString));
158 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + ("C string" + atomicString));
159 EXPECT_N_WTF_STRING_COPIES(2, atomicString + "C string" + atomicString + "C string");
160 EXPECT_N_WTF_STRING_COPIES(2, atomicString + ("C string" + atomicString + "C string"));
161 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + "C string") + (atomicString + "C string"));
162
163 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + literal + atomicString);
164 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + literal + atomicString));
165 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + (literal + atomicString));
166 EXPECT_N_WTF_STRING_COPIES(2, atomicString + literal + atomicString + literal);
167 EXPECT_N_WTF_STRING_COPIES(2, atomicString + (literal + atomicString + literal));
168 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + literal) + (atomicString + literal));
169
170 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + "C string" + atomicString + "C string" + stringView);
171 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + "C string" + atomicString + "C string" + stringView));
172 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + ("C string" + atomicString) + ("C string" + stringView));
173 EXPECT_N_WTF_STRING_COPIES(2, string + "C string" + atomicString + "C string" + stringView + "C string");
174 EXPECT_N_WTF_STRING_COPIES(2, string + ("C string" + atomicString + "C string" + stringView + "C string"));
175 EXPECT_N_WTF_STRING_COPIES(2, (string + "C string") + (atomicString + "C string") + (stringView + "C string"));
176
177 EXPECT_N_WTF_STRING_COPIES(2, literal + string + literal + atomicString + literal + stringView);
178 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + literal + atomicString + literal + stringView));
179 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + (literal + atomicString) + (literal + stringView));
180 EXPECT_N_WTF_STRING_COPIES(2, string + literal + atomicString + literal + stringView + literal);
181 EXPECT_N_WTF_STRING_COPIES(2, string + (literal + atomicString + literal + stringView + literal));
182 EXPECT_N_WTF_STRING_COPIES(2, (string + literal) + (atomicString + literal) + (stringView + literal));
183
184 EXPECT_N_WTF_STRING_COPIES(2, "C string" + string + "C string" + stringView + "C string" + atomicString);
185 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (string + "C string" + stringView + "C string" + atomicString));
186 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + string) + ("C string" + stringView) + ("C string" + atomicString));
187 EXPECT_N_WTF_STRING_COPIES(2, string + "C string" + stringView + "C string" + atomicString + "C string");
188 EXPECT_N_WTF_STRING_COPIES(2, string + ("C string" + stringView + "C string" + atomicString + "C string"));
189 EXPECT_N_WTF_STRING_COPIES(2, (string + "C string") + (stringView + "C string") + (atomicString + "C string"));
190
191 EXPECT_N_WTF_STRING_COPIES(2, literal + string + literal + stringView + literal + atomicString);
192 EXPECT_N_WTF_STRING_COPIES(2, literal + (string + literal + stringView + literal + atomicString));
193 EXPECT_N_WTF_STRING_COPIES(2, (literal + string) + (literal + stringView) + (literal + atomicString));
194 EXPECT_N_WTF_STRING_COPIES(2, string + literal + stringView + literal + atomicString + literal);
195 EXPECT_N_WTF_STRING_COPIES(2, string + (literal + stringView + literal + atomicString + literal));
196 EXPECT_N_WTF_STRING_COPIES(2, (string + literal) + (stringView + literal) + (atomicString + literal));
197
198 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + "C string" + string + "C string" + stringView);
199 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + "C string" + string + "C string" + stringView));
200 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + ("C string" + string) + ("C string" + stringView));
201 EXPECT_N_WTF_STRING_COPIES(2, atomicString + "C string" + string + "C string" + stringView + "C string");
202 EXPECT_N_WTF_STRING_COPIES(2, atomicString + ("C string" + string + "C string" + stringView + "C string"));
203 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + "C string") + (string + "C string") + (stringView + "C string"));
204
205 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + literal + string + literal + stringView);
206 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + literal + string + literal + stringView));
207 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + (literal + string) + (literal + stringView));
208 EXPECT_N_WTF_STRING_COPIES(2, atomicString + literal + string + literal + stringView + literal);
209 EXPECT_N_WTF_STRING_COPIES(2, atomicString + (literal + string + literal + stringView + literal));
210 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + literal) + (string + literal) + (stringView + literal));
211
212 EXPECT_N_WTF_STRING_COPIES(2, "C string" + atomicString + "C string" + stringView + "C string" + string);
213 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (atomicString + "C string" + stringView + "C string" + string));
214 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + atomicString) + ("C string" + stringView) + ("C string" + string));
215 EXPECT_N_WTF_STRING_COPIES(2, atomicString + "C string" + stringView + "C string" + string + "C string");
216 EXPECT_N_WTF_STRING_COPIES(2, atomicString + ("C string" + stringView + "C string" + string + "C string"));
217 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + "C string") + (stringView + "C string") + (string + "C string"));
218
219 EXPECT_N_WTF_STRING_COPIES(2, literal + atomicString + literal + stringView + literal + string);
220 EXPECT_N_WTF_STRING_COPIES(2, literal + (atomicString + literal + stringView + literal + string));
221 EXPECT_N_WTF_STRING_COPIES(2, (literal + atomicString) + (literal + stringView) + (literal + string));
222 EXPECT_N_WTF_STRING_COPIES(2, atomicString + literal + stringView + literal + string + literal);
223 EXPECT_N_WTF_STRING_COPIES(2, atomicString + (literal + stringView + literal + string + literal));
224 EXPECT_N_WTF_STRING_COPIES(2, (atomicString + literal) + (stringView + literal) + (string + literal));
225
226 EXPECT_N_WTF_STRING_COPIES(2, "C string" + stringView + "C string" + atomicString + "C string" + string);
227 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (stringView + "C string" + atomicString + "C string" + string));
228 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + stringView) + ("C string" + atomicString) + ("C string" + string));
229 EXPECT_N_WTF_STRING_COPIES(2, stringView + "C string" + atomicString + "C string" + string + "C string");
230 EXPECT_N_WTF_STRING_COPIES(2, stringView + ("C string" + atomicString + "C string" + string + "C string"));
231 EXPECT_N_WTF_STRING_COPIES(2, (stringView + "C string") + (atomicString + "C string") + (string + "C string"));
232
233 EXPECT_N_WTF_STRING_COPIES(2, literal + stringView + literal + atomicString + literal + string);
234 EXPECT_N_WTF_STRING_COPIES(2, literal + (stringView + literal + atomicString + literal + string));
235 EXPECT_N_WTF_STRING_COPIES(2, (literal + stringView) + (literal + atomicString) + (literal + string));
236 EXPECT_N_WTF_STRING_COPIES(2, stringView + literal + atomicString + literal + string + literal);
237 EXPECT_N_WTF_STRING_COPIES(2, stringView + (literal + atomicString + literal + string + literal));
238 EXPECT_N_WTF_STRING_COPIES(2, (stringView + literal) + (atomicString + literal) + (string + literal));
239
240 EXPECT_N_WTF_STRING_COPIES(2, "C string" + stringView + "C string" + string + "C string" + atomicString);
241 EXPECT_N_WTF_STRING_COPIES(2, "C string" + (stringView + "C string" + string + "C string" + atomicString));
242 EXPECT_N_WTF_STRING_COPIES(2, ("C string" + stringView) + ("C string" + string) + ("C string" + atomicString));
243 EXPECT_N_WTF_STRING_COPIES(2, stringView + "C string" + string + "C string" + atomicString + "C string");
244 EXPECT_N_WTF_STRING_COPIES(2, stringView + ("C string" + string + "C string" + atomicString + "C string"));
245 EXPECT_N_WTF_STRING_COPIES(2, (stringView + "C string") + (string + "C string") + (atomicString + "C string"));
246
247 EXPECT_N_WTF_STRING_COPIES(2, literal + stringView + literal + string + literal + atomicString);
248 EXPECT_N_WTF_STRING_COPIES(2, literal + (stringView + literal + string + literal + atomicString));
249 EXPECT_N_WTF_STRING_COPIES(2, (literal + stringView) + (literal + string) + (literal + atomicString));
250 EXPECT_N_WTF_STRING_COPIES(2, stringView + literal + string + literal + atomicString + literal);
251 EXPECT_N_WTF_STRING_COPIES(2, stringView + (literal + string + literal + atomicString + literal));
252 EXPECT_N_WTF_STRING_COPIES(2, (stringView + literal) + (string + literal) + (atomicString + literal));
253}
254
255TEST(WTF, ConcatenateCharacterArrayAndEmptyString)
256{
257 String emptyString;
258 EXPECT_EQ(static_cast<unsigned>(0), emptyString.length());
259
260 UChar ucharArray[] = { 't', 'e', 's', 't', '\0' };
261 String concatenation16 = ucharArray + emptyString;
262 ASSERT_EQ(static_cast<unsigned>(4), concatenation16.length());
263 ASSERT_TRUE(concatenation16 == String(ucharArray));
264
265 LChar lcharArray[] = { 't', 'e', 's', 't', '\0' };
266 String concatenation8 = lcharArray + emptyString;
267 ASSERT_EQ(static_cast<unsigned>(4), concatenation8.length());
268 ASSERT_TRUE(concatenation8 == String(lcharArray));
269}
270
271} // namespace TestWebKitAPI
272