1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "core/fxcrt/fx_basic.h"
6 #include "testing/fx_string_testhelpers.h"
7 #include "testing/gtest/include/gtest/gtest.h"
8
TEST(fxcrt,WideStringOperatorSubscript)9 TEST(fxcrt, WideStringOperatorSubscript) {
10 // CFX_WideString includes the NUL terminator for non-empty strings.
11 CFX_WideString abc(L"abc");
12 EXPECT_EQ(L'a', abc[0]);
13 EXPECT_EQ(L'b', abc[1]);
14 EXPECT_EQ(L'c', abc[2]);
15 EXPECT_EQ(L'\0', abc[3]);
16 }
17
TEST(fxcrt,WideStringOperatorLT)18 TEST(fxcrt, WideStringOperatorLT) {
19 CFX_WideString empty;
20 CFX_WideString a(L"a");
21 CFX_WideString abc(L"\x0110qq"); // Comes before despite endianness.
22 CFX_WideString def(L"\x1001qq"); // Comes after despite endianness.
23
24 EXPECT_FALSE(empty < empty);
25 EXPECT_FALSE(a < a);
26 EXPECT_FALSE(abc < abc);
27 EXPECT_FALSE(def < def);
28
29 EXPECT_TRUE(empty < a);
30 EXPECT_FALSE(a < empty);
31
32 EXPECT_TRUE(empty < abc);
33 EXPECT_FALSE(abc < empty);
34
35 EXPECT_TRUE(empty < def);
36 EXPECT_FALSE(def < empty);
37
38 EXPECT_TRUE(a < abc);
39 EXPECT_FALSE(abc < a);
40
41 EXPECT_TRUE(a < def);
42 EXPECT_FALSE(def < a);
43
44 EXPECT_TRUE(abc < def);
45 EXPECT_FALSE(def < abc);
46 }
47
TEST(fxcrt,WideStringOperatorEQ)48 TEST(fxcrt, WideStringOperatorEQ) {
49 CFX_WideString null_string;
50 EXPECT_TRUE(null_string == null_string);
51
52 CFX_WideString empty_string(L"");
53 EXPECT_TRUE(empty_string == empty_string);
54 EXPECT_TRUE(empty_string == null_string);
55 EXPECT_TRUE(null_string == empty_string);
56
57 CFX_WideString deleted_string(L"hello");
58 deleted_string.Delete(0, 5);
59 EXPECT_TRUE(deleted_string == deleted_string);
60 EXPECT_TRUE(deleted_string == null_string);
61 EXPECT_TRUE(deleted_string == empty_string);
62 EXPECT_TRUE(null_string == deleted_string);
63 EXPECT_TRUE(null_string == empty_string);
64
65 CFX_WideString wide_string(L"hello");
66 EXPECT_TRUE(wide_string == wide_string);
67 EXPECT_FALSE(wide_string == null_string);
68 EXPECT_FALSE(wide_string == empty_string);
69 EXPECT_FALSE(wide_string == deleted_string);
70 EXPECT_FALSE(null_string == wide_string);
71 EXPECT_FALSE(empty_string == wide_string);
72 EXPECT_FALSE(deleted_string == wide_string);
73
74 CFX_WideString wide_string_same1(L"hello");
75 EXPECT_TRUE(wide_string == wide_string_same1);
76 EXPECT_TRUE(wide_string_same1 == wide_string);
77
78 CFX_WideString wide_string_same2(wide_string);
79 EXPECT_TRUE(wide_string == wide_string_same2);
80 EXPECT_TRUE(wide_string_same2 == wide_string);
81
82 CFX_WideString wide_string1(L"he");
83 CFX_WideString wide_string2(L"hellp");
84 CFX_WideString wide_string3(L"hellod");
85 EXPECT_FALSE(wide_string == wide_string1);
86 EXPECT_FALSE(wide_string == wide_string2);
87 EXPECT_FALSE(wide_string == wide_string3);
88 EXPECT_FALSE(wide_string1 == wide_string);
89 EXPECT_FALSE(wide_string2 == wide_string);
90 EXPECT_FALSE(wide_string3 == wide_string);
91
92 CFX_WideStringC null_string_c;
93 CFX_WideStringC empty_string_c(L"");
94 EXPECT_TRUE(null_string == null_string_c);
95 EXPECT_TRUE(null_string == empty_string_c);
96 EXPECT_TRUE(empty_string == null_string_c);
97 EXPECT_TRUE(empty_string == empty_string_c);
98 EXPECT_TRUE(deleted_string == null_string_c);
99 EXPECT_TRUE(deleted_string == empty_string_c);
100 EXPECT_TRUE(null_string_c == null_string);
101 EXPECT_TRUE(empty_string_c == null_string);
102 EXPECT_TRUE(null_string_c == empty_string);
103 EXPECT_TRUE(empty_string_c == empty_string);
104 EXPECT_TRUE(null_string_c == deleted_string);
105 EXPECT_TRUE(empty_string_c == deleted_string);
106
107 CFX_WideStringC wide_string_c_same1(L"hello");
108 EXPECT_TRUE(wide_string == wide_string_c_same1);
109 EXPECT_TRUE(wide_string_c_same1 == wide_string);
110
111 CFX_WideStringC wide_string_c1(L"he");
112 CFX_WideStringC wide_string_c2(L"hellp");
113 CFX_WideStringC wide_string_c3(L"hellod");
114 EXPECT_FALSE(wide_string == wide_string_c1);
115 EXPECT_FALSE(wide_string == wide_string_c2);
116 EXPECT_FALSE(wide_string == wide_string_c3);
117 EXPECT_FALSE(wide_string_c1 == wide_string);
118 EXPECT_FALSE(wide_string_c2 == wide_string);
119 EXPECT_FALSE(wide_string_c3 == wide_string);
120
121 const wchar_t* c_null_string = nullptr;
122 const wchar_t* c_empty_string = L"";
123 EXPECT_TRUE(null_string == c_null_string);
124 EXPECT_TRUE(null_string == c_empty_string);
125 EXPECT_TRUE(empty_string == c_null_string);
126 EXPECT_TRUE(empty_string == c_empty_string);
127 EXPECT_TRUE(deleted_string == c_null_string);
128 EXPECT_TRUE(deleted_string == c_empty_string);
129 EXPECT_TRUE(c_null_string == null_string);
130 EXPECT_TRUE(c_empty_string == null_string);
131 EXPECT_TRUE(c_null_string == empty_string);
132 EXPECT_TRUE(c_empty_string == empty_string);
133 EXPECT_TRUE(c_null_string == deleted_string);
134 EXPECT_TRUE(c_empty_string == deleted_string);
135
136 const wchar_t* c_string_same1 = L"hello";
137 EXPECT_TRUE(wide_string == c_string_same1);
138 EXPECT_TRUE(c_string_same1 == wide_string);
139
140 const wchar_t* c_string1 = L"he";
141 const wchar_t* c_string2 = L"hellp";
142 const wchar_t* c_string3 = L"hellod";
143 EXPECT_FALSE(wide_string == c_string1);
144 EXPECT_FALSE(wide_string == c_string2);
145 EXPECT_FALSE(wide_string == c_string3);
146 EXPECT_FALSE(c_string1 == wide_string);
147 EXPECT_FALSE(c_string2 == wide_string);
148 EXPECT_FALSE(c_string3 == wide_string);
149 }
150
TEST(fxcrt,WideStringOperatorNE)151 TEST(fxcrt, WideStringOperatorNE) {
152 CFX_WideString null_string;
153 EXPECT_FALSE(null_string != null_string);
154
155 CFX_WideString empty_string(L"");
156 EXPECT_FALSE(empty_string != empty_string);
157 EXPECT_FALSE(empty_string != null_string);
158 EXPECT_FALSE(null_string != empty_string);
159
160 CFX_WideString deleted_string(L"hello");
161 deleted_string.Delete(0, 5);
162 EXPECT_FALSE(deleted_string != deleted_string);
163 EXPECT_FALSE(deleted_string != null_string);
164 EXPECT_FALSE(deleted_string != empty_string);
165 EXPECT_FALSE(null_string != deleted_string);
166 EXPECT_FALSE(null_string != empty_string);
167
168 CFX_WideString wide_string(L"hello");
169 EXPECT_FALSE(wide_string != wide_string);
170 EXPECT_TRUE(wide_string != null_string);
171 EXPECT_TRUE(wide_string != empty_string);
172 EXPECT_TRUE(wide_string != deleted_string);
173 EXPECT_TRUE(null_string != wide_string);
174 EXPECT_TRUE(empty_string != wide_string);
175 EXPECT_TRUE(deleted_string != wide_string);
176
177 CFX_WideString wide_string_same1(L"hello");
178 EXPECT_FALSE(wide_string != wide_string_same1);
179 EXPECT_FALSE(wide_string_same1 != wide_string);
180
181 CFX_WideString wide_string_same2(wide_string);
182 EXPECT_FALSE(wide_string != wide_string_same2);
183 EXPECT_FALSE(wide_string_same2 != wide_string);
184
185 CFX_WideString wide_string1(L"he");
186 CFX_WideString wide_string2(L"hellp");
187 CFX_WideString wide_string3(L"hellod");
188 EXPECT_TRUE(wide_string != wide_string1);
189 EXPECT_TRUE(wide_string != wide_string2);
190 EXPECT_TRUE(wide_string != wide_string3);
191 EXPECT_TRUE(wide_string1 != wide_string);
192 EXPECT_TRUE(wide_string2 != wide_string);
193 EXPECT_TRUE(wide_string3 != wide_string);
194
195 CFX_WideStringC null_string_c;
196 CFX_WideStringC empty_string_c(L"");
197 EXPECT_FALSE(null_string != null_string_c);
198 EXPECT_FALSE(null_string != empty_string_c);
199 EXPECT_FALSE(empty_string != null_string_c);
200 EXPECT_FALSE(empty_string != empty_string_c);
201 EXPECT_FALSE(deleted_string != null_string_c);
202 EXPECT_FALSE(deleted_string != empty_string_c);
203 EXPECT_FALSE(null_string_c != null_string);
204 EXPECT_FALSE(empty_string_c != null_string);
205 EXPECT_FALSE(null_string_c != empty_string);
206 EXPECT_FALSE(empty_string_c != empty_string);
207
208 CFX_WideStringC wide_string_c_same1(L"hello");
209 EXPECT_FALSE(wide_string != wide_string_c_same1);
210 EXPECT_FALSE(wide_string_c_same1 != wide_string);
211
212 CFX_WideStringC wide_string_c1(L"he");
213 CFX_WideStringC wide_string_c2(L"hellp");
214 CFX_WideStringC wide_string_c3(L"hellod");
215 EXPECT_TRUE(wide_string != wide_string_c1);
216 EXPECT_TRUE(wide_string != wide_string_c2);
217 EXPECT_TRUE(wide_string != wide_string_c3);
218 EXPECT_TRUE(wide_string_c1 != wide_string);
219 EXPECT_TRUE(wide_string_c2 != wide_string);
220 EXPECT_TRUE(wide_string_c3 != wide_string);
221
222 const wchar_t* c_null_string = nullptr;
223 const wchar_t* c_empty_string = L"";
224 EXPECT_FALSE(null_string != c_null_string);
225 EXPECT_FALSE(null_string != c_empty_string);
226 EXPECT_FALSE(empty_string != c_null_string);
227 EXPECT_FALSE(empty_string != c_empty_string);
228 EXPECT_FALSE(deleted_string != c_null_string);
229 EXPECT_FALSE(deleted_string != c_empty_string);
230 EXPECT_FALSE(c_null_string != null_string);
231 EXPECT_FALSE(c_empty_string != null_string);
232 EXPECT_FALSE(c_null_string != empty_string);
233 EXPECT_FALSE(c_empty_string != empty_string);
234 EXPECT_FALSE(c_null_string != deleted_string);
235 EXPECT_FALSE(c_empty_string != deleted_string);
236
237 const wchar_t* c_string_same1 = L"hello";
238 EXPECT_FALSE(wide_string != c_string_same1);
239 EXPECT_FALSE(c_string_same1 != wide_string);
240
241 const wchar_t* c_string1 = L"he";
242 const wchar_t* c_string2 = L"hellp";
243 const wchar_t* c_string3 = L"hellod";
244 EXPECT_TRUE(wide_string != c_string1);
245 EXPECT_TRUE(wide_string != c_string2);
246 EXPECT_TRUE(wide_string != c_string3);
247 EXPECT_TRUE(c_string1 != wide_string);
248 EXPECT_TRUE(c_string2 != wide_string);
249 EXPECT_TRUE(c_string3 != wide_string);
250 }
251
TEST(fxcrt,WideStringConcatInPlace)252 TEST(fxcrt, WideStringConcatInPlace) {
253 CFX_WideString fred;
254 fred.Concat(L"FRED", 4);
255 EXPECT_EQ(L"FRED", fred);
256
257 fred.Concat(L"DY", 2);
258 EXPECT_EQ(L"FREDDY", fred);
259
260 fred.Delete(3, 3);
261 EXPECT_EQ(L"FRE", fred);
262
263 fred.Concat(L"D", 1);
264 EXPECT_EQ(L"FRED", fred);
265
266 CFX_WideString copy = fred;
267 fred.Concat(L"DY", 2);
268 EXPECT_EQ(L"FREDDY", fred);
269 EXPECT_EQ(L"FRED", copy);
270
271 // Test invalid arguments.
272 copy = fred;
273 fred.Concat(L"freddy", -6);
274 CFX_WideString not_aliased(L"xxxxxx");
275 EXPECT_EQ(L"FREDDY", fred);
276 EXPECT_EQ(L"xxxxxx", not_aliased);
277 }
278
TEST(fxcrt,WideStringRemove)279 TEST(fxcrt, WideStringRemove) {
280 CFX_WideString freed(L"FREED");
281 freed.Remove(L'E');
282 EXPECT_EQ(L"FRD", freed);
283 freed.Remove(L'F');
284 EXPECT_EQ(L"RD", freed);
285 freed.Remove(L'D');
286 EXPECT_EQ(L"R", freed);
287 freed.Remove(L'X');
288 EXPECT_EQ(L"R", freed);
289 freed.Remove(L'R');
290 EXPECT_EQ(L"", freed);
291
292 CFX_WideString empty;
293 empty.Remove(L'X');
294 EXPECT_EQ(L"", empty);
295 }
296
TEST(fxcrt,WideStringRemoveCopies)297 TEST(fxcrt, WideStringRemoveCopies) {
298 CFX_WideString freed(L"FREED");
299 const FX_WCHAR* old_buffer = freed.c_str();
300
301 // No change with single reference - no copy.
302 freed.Remove(L'Q');
303 EXPECT_EQ(L"FREED", freed);
304 EXPECT_EQ(old_buffer, freed.c_str());
305
306 // Change with single reference - no copy.
307 freed.Remove(L'E');
308 EXPECT_EQ(L"FRD", freed);
309 EXPECT_EQ(old_buffer, freed.c_str());
310
311 // No change with multiple references - no copy.
312 CFX_WideString shared(freed);
313 freed.Remove(L'Q');
314 EXPECT_EQ(L"FRD", freed);
315 EXPECT_EQ(old_buffer, freed.c_str());
316 EXPECT_EQ(old_buffer, shared.c_str());
317
318 // Change with multiple references -- must copy.
319 freed.Remove(L'D');
320 EXPECT_EQ(L"FR", freed);
321 EXPECT_NE(old_buffer, freed.c_str());
322 EXPECT_EQ(L"FRD", shared);
323 EXPECT_EQ(old_buffer, shared.c_str());
324 }
325
TEST(fxcrt,WideStringReplace)326 TEST(fxcrt, WideStringReplace) {
327 CFX_WideString fred(L"FRED");
328 fred.Replace(L"FR", L"BL");
329 EXPECT_EQ(L"BLED", fred);
330 fred.Replace(L"D", L"DDY");
331 EXPECT_EQ(L"BLEDDY", fred);
332 fred.Replace(L"LEDD", L"");
333 EXPECT_EQ(L"BY", fred);
334 fred.Replace(L"X", L"CLAMS");
335 EXPECT_EQ(L"BY", fred);
336 fred.Replace(L"BY", L"HI");
337 EXPECT_EQ(L"HI", fred);
338 fred.Replace(L"", L"CLAMS");
339 EXPECT_EQ(L"HI", fred);
340 fred.Replace(L"HI", L"");
341 EXPECT_EQ(L"", fred);
342 }
343
TEST(fxcrt,WideStringInsert)344 TEST(fxcrt, WideStringInsert) {
345 CFX_WideString fred(L"FRED");
346 fred.Insert(-1, 'X');
347 EXPECT_EQ(L"XFRED", fred);
348
349 fred.Insert(0, 'S');
350 EXPECT_EQ(L"SXFRED", fred);
351
352 fred.Insert(2, 'T');
353 EXPECT_EQ(L"SXTFRED", fred);
354
355 fred.Insert(5, 'U');
356 EXPECT_EQ(L"SXTFRUED", fred);
357
358 fred.Insert(8, 'V');
359 EXPECT_EQ(L"SXTFRUEDV", fred);
360
361 fred.Insert(12, 'P');
362 EXPECT_EQ(L"SXTFRUEDVP", fred);
363
364 {
365 CFX_WideString empty;
366 empty.Insert(-1, 'X');
367 EXPECT_EQ(L"X", empty);
368 }
369 {
370 CFX_WideString empty;
371 empty.Insert(0, 'X');
372 EXPECT_EQ(L"X", empty);
373 }
374 {
375 CFX_WideString empty;
376 empty.Insert(5, 'X');
377 EXPECT_EQ(L"X", empty);
378 }
379 }
380
TEST(fxcrt,WideStringDelete)381 TEST(fxcrt, WideStringDelete) {
382 CFX_WideString fred(L"FRED");
383 fred.Delete(0, 2);
384 EXPECT_EQ(L"ED", fred);
385 fred.Delete(1);
386 EXPECT_EQ(L"E", fred);
387 fred.Delete(-1);
388 EXPECT_EQ(L"", fred);
389 fred.Delete(1);
390 EXPECT_EQ(L"", fred);
391
392 CFX_WideString empty;
393 empty.Delete(0);
394 EXPECT_EQ(L"", empty);
395 empty.Delete(-1);
396 EXPECT_EQ(L"", empty);
397 empty.Delete(1);
398 EXPECT_EQ(L"", empty);
399 }
400
TEST(fxcrt,WideStringMid)401 TEST(fxcrt, WideStringMid) {
402 CFX_WideString fred(L"FRED");
403 EXPECT_EQ(L"", fred.Mid(0, 0));
404 EXPECT_EQ(L"", fred.Mid(3, 0));
405 EXPECT_EQ(L"FRED", fred.Mid(0));
406 EXPECT_EQ(L"RED", fred.Mid(1));
407 EXPECT_EQ(L"ED", fred.Mid(2));
408 EXPECT_EQ(L"D", fred.Mid(3));
409 EXPECT_EQ(L"F", fred.Mid(0, 1));
410 EXPECT_EQ(L"R", fred.Mid(1, 1));
411 EXPECT_EQ(L"E", fred.Mid(2, 1));
412 EXPECT_EQ(L"D", fred.Mid(3, 1));
413 EXPECT_EQ(L"FR", fred.Mid(0, 2));
414 EXPECT_EQ(L"FRED", fred.Mid(0, 4));
415 EXPECT_EQ(L"FRED", fred.Mid(0, 10));
416
417 EXPECT_EQ(L"FR", fred.Mid(-1, 2));
418 EXPECT_EQ(L"RED", fred.Mid(1, 4));
419 EXPECT_EQ(L"", fred.Mid(4, 1));
420
421 CFX_WideString empty;
422 EXPECT_EQ(L"", empty.Mid(0, 0));
423 EXPECT_EQ(L"", empty.Mid(0));
424 EXPECT_EQ(L"", empty.Mid(1));
425 EXPECT_EQ(L"", empty.Mid(-1));
426 }
427
TEST(fxcrt,WideStringLeft)428 TEST(fxcrt, WideStringLeft) {
429 CFX_WideString fred(L"FRED");
430 EXPECT_EQ(L"", fred.Left(0));
431 EXPECT_EQ(L"F", fred.Left(1));
432 EXPECT_EQ(L"FR", fred.Left(2));
433 EXPECT_EQ(L"FRE", fred.Left(3));
434 EXPECT_EQ(L"FRED", fred.Left(4));
435
436 EXPECT_EQ(L"FRED", fred.Left(5));
437 EXPECT_EQ(L"", fred.Left(-1));
438
439 CFX_WideString empty;
440 EXPECT_EQ(L"", empty.Left(0));
441 EXPECT_EQ(L"", empty.Left(1));
442 EXPECT_EQ(L"", empty.Left(-1));
443 }
444
TEST(fxcrt,WideStringRight)445 TEST(fxcrt, WideStringRight) {
446 CFX_WideString fred(L"FRED");
447 EXPECT_EQ(L"", fred.Right(0));
448 EXPECT_EQ(L"D", fred.Right(1));
449 EXPECT_EQ(L"ED", fred.Right(2));
450 EXPECT_EQ(L"RED", fred.Right(3));
451 EXPECT_EQ(L"FRED", fred.Right(4));
452
453 EXPECT_EQ(L"FRED", fred.Right(5));
454 EXPECT_EQ(L"", fred.Right(-1));
455
456 CFX_WideString empty;
457 EXPECT_EQ(L"", empty.Right(0));
458 EXPECT_EQ(L"", empty.Right(1));
459 EXPECT_EQ(L"", empty.Right(-1));
460 }
461
TEST(fxcrt,WideStringUpperLower)462 TEST(fxcrt, WideStringUpperLower) {
463 CFX_WideString fred(L"F-Re.42D");
464 fred.MakeLower();
465 EXPECT_EQ(L"f-re.42d", fred);
466 fred.MakeUpper();
467 EXPECT_EQ(L"F-RE.42D", fred);
468
469 CFX_WideString empty;
470 empty.MakeLower();
471 EXPECT_EQ(L"", empty);
472 empty.MakeUpper();
473 EXPECT_EQ(L"", empty);
474 }
475
TEST(fxcrt,WideStringTrimRight)476 TEST(fxcrt, WideStringTrimRight) {
477 CFX_WideString fred(L" FRED ");
478 fred.TrimRight();
479 EXPECT_EQ(L" FRED", fred);
480 fred.TrimRight(L'E');
481 EXPECT_EQ(L" FRED", fred);
482 fred.TrimRight(L'D');
483 EXPECT_EQ(L" FRE", fred);
484 fred.TrimRight(L"ERP");
485 EXPECT_EQ(L" F", fred);
486
487 CFX_WideString blank(L" ");
488 blank.TrimRight(L"ERP");
489 EXPECT_EQ(L" ", blank);
490 blank.TrimRight(L'E');
491 EXPECT_EQ(L" ", blank);
492 blank.TrimRight();
493 EXPECT_EQ(L"", blank);
494
495 CFX_WideString empty;
496 empty.TrimRight(L"ERP");
497 EXPECT_EQ(L"", empty);
498 empty.TrimRight(L'E');
499 EXPECT_EQ(L"", empty);
500 empty.TrimRight();
501 EXPECT_EQ(L"", empty);
502 }
503
TEST(fxcrt,WideStringTrimRightCopies)504 TEST(fxcrt, WideStringTrimRightCopies) {
505 {
506 // With a single reference, no copy takes place.
507 CFX_WideString fred(L" FRED ");
508 const FX_WCHAR* old_buffer = fred.c_str();
509 fred.TrimRight();
510 EXPECT_EQ(L" FRED", fred);
511 EXPECT_EQ(old_buffer, fred.c_str());
512 }
513 {
514 // With multiple references, we must copy.
515 CFX_WideString fred(L" FRED ");
516 CFX_WideString other_fred = fred;
517 const FX_WCHAR* old_buffer = fred.c_str();
518 fred.TrimRight();
519 EXPECT_EQ(L" FRED", fred);
520 EXPECT_EQ(L" FRED ", other_fred);
521 EXPECT_NE(old_buffer, fred.c_str());
522 }
523 {
524 // With multiple references, but no modifications, no copy.
525 CFX_WideString fred(L"FRED");
526 CFX_WideString other_fred = fred;
527 const FX_WCHAR* old_buffer = fred.c_str();
528 fred.TrimRight();
529 EXPECT_EQ(L"FRED", fred);
530 EXPECT_EQ(L"FRED", other_fred);
531 EXPECT_EQ(old_buffer, fred.c_str());
532 }
533 }
534
TEST(fxcrt,WideStringTrimLeft)535 TEST(fxcrt, WideStringTrimLeft) {
536 CFX_WideString fred(L" FRED ");
537 fred.TrimLeft();
538 EXPECT_EQ(L"FRED ", fred);
539 fred.TrimLeft(L'E');
540 EXPECT_EQ(L"FRED ", fred);
541 fred.TrimLeft(L'F');
542 EXPECT_EQ(L"RED ", fred);
543 fred.TrimLeft(L"ERP");
544 EXPECT_EQ(L"D ", fred);
545
546 CFX_WideString blank(L" ");
547 blank.TrimLeft(L"ERP");
548 EXPECT_EQ(L" ", blank);
549 blank.TrimLeft(L'E');
550 EXPECT_EQ(L" ", blank);
551 blank.TrimLeft();
552 EXPECT_EQ(L"", blank);
553
554 CFX_WideString empty;
555 empty.TrimLeft(L"ERP");
556 EXPECT_EQ(L"", empty);
557 empty.TrimLeft(L'E');
558 EXPECT_EQ(L"", empty);
559 empty.TrimLeft();
560 EXPECT_EQ(L"", empty);
561 }
562
TEST(fxcrt,WideStringTrimLeftCopies)563 TEST(fxcrt, WideStringTrimLeftCopies) {
564 {
565 // With a single reference, no copy takes place.
566 CFX_WideString fred(L" FRED ");
567 const FX_WCHAR* old_buffer = fred.c_str();
568 fred.TrimLeft();
569 EXPECT_EQ(L"FRED ", fred);
570 EXPECT_EQ(old_buffer, fred.c_str());
571 }
572 {
573 // With multiple references, we must copy.
574 CFX_WideString fred(L" FRED ");
575 CFX_WideString other_fred = fred;
576 const FX_WCHAR* old_buffer = fred.c_str();
577 fred.TrimLeft();
578 EXPECT_EQ(L"FRED ", fred);
579 EXPECT_EQ(L" FRED ", other_fred);
580 EXPECT_NE(old_buffer, fred.c_str());
581 }
582 {
583 // With multiple references, but no modifications, no copy.
584 CFX_WideString fred(L"FRED");
585 CFX_WideString other_fred = fred;
586 const FX_WCHAR* old_buffer = fred.c_str();
587 fred.TrimLeft();
588 EXPECT_EQ(L"FRED", fred);
589 EXPECT_EQ(L"FRED", other_fred);
590 EXPECT_EQ(old_buffer, fred.c_str());
591 }
592 }
593
TEST(fxcrt,WideStringReserve)594 TEST(fxcrt, WideStringReserve) {
595 {
596 CFX_WideString str;
597 str.Reserve(6);
598 const FX_WCHAR* old_buffer = str.c_str();
599 str += L"ABCDEF";
600 EXPECT_EQ(old_buffer, str.c_str());
601 str += L"Blah Blah Blah Blah Blah Blah";
602 EXPECT_NE(old_buffer, str.c_str());
603 }
604 {
605 CFX_WideString str(L"A");
606 str.Reserve(6);
607 const FX_WCHAR* old_buffer = str.c_str();
608 str += L"BCDEF";
609 EXPECT_EQ(old_buffer, str.c_str());
610 str += L"Blah Blah Blah Blah Blah Blah";
611 EXPECT_NE(old_buffer, str.c_str());
612 }
613 }
614
TEST(fxcrt,WideStringGetBuffer)615 TEST(fxcrt, WideStringGetBuffer) {
616 {
617 CFX_WideString str;
618 FX_WCHAR* buffer = str.GetBuffer(12);
619 wcscpy(buffer, L"clams");
620 str.ReleaseBuffer();
621 EXPECT_EQ(L"clams", str);
622 }
623 {
624 CFX_WideString str(L"cl");
625 FX_WCHAR* buffer = str.GetBuffer(12);
626 wcscpy(buffer + 2, L"ams");
627 str.ReleaseBuffer();
628 EXPECT_EQ(L"clams", str);
629 }
630 }
631
TEST(fxcrt,WideStringReleaseBuffer)632 TEST(fxcrt, WideStringReleaseBuffer) {
633 {
634 CFX_WideString str;
635 str.Reserve(12);
636 str += L"clams";
637 const FX_WCHAR* old_buffer = str.c_str();
638 str.ReleaseBuffer(4);
639 EXPECT_EQ(old_buffer, str.c_str());
640 EXPECT_EQ(L"clam", str);
641 }
642 {
643 CFX_WideString str(L"c");
644 str.Reserve(12);
645 str += L"lams";
646 const FX_WCHAR* old_buffer = str.c_str();
647 str.ReleaseBuffer(4);
648 EXPECT_EQ(old_buffer, str.c_str());
649 EXPECT_EQ(L"clam", str);
650 }
651 {
652 CFX_WideString str;
653 str.Reserve(200);
654 str += L"clams";
655 const FX_WCHAR* old_buffer = str.c_str();
656 str.ReleaseBuffer(4);
657 EXPECT_NE(old_buffer, str.c_str());
658 EXPECT_EQ(L"clam", str);
659 }
660 {
661 CFX_WideString str(L"c");
662 str.Reserve(200);
663 str += L"lams";
664 const FX_WCHAR* old_buffer = str.c_str();
665 str.ReleaseBuffer(4);
666 EXPECT_NE(old_buffer, str.c_str());
667 EXPECT_EQ(L"clam", str);
668 }
669 }
670
TEST(fxcrt,WideStringUTF16LE_Encode)671 TEST(fxcrt, WideStringUTF16LE_Encode) {
672 struct UTF16LEEncodeCase {
673 CFX_WideString ws;
674 CFX_ByteString bs;
675 } utf16le_encode_cases[] = {
676 {L"", CFX_ByteString("\0\0", 2)},
677 {L"abc", CFX_ByteString("a\0b\0c\0\0\0", 8)},
678 {L"abcdef", CFX_ByteString("a\0b\0c\0d\0e\0f\0\0\0", 14)},
679 {L"abc\0def", CFX_ByteString("a\0b\0c\0\0\0", 8)},
680 {L"\xaabb\xccdd", CFX_ByteString("\xbb\xaa\xdd\xcc\0\0", 6)},
681 {L"\x3132\x6162", CFX_ByteString("\x32\x31\x62\x61\0\0", 6)},
682 };
683
684 for (size_t i = 0; i < FX_ArraySize(utf16le_encode_cases); ++i) {
685 EXPECT_EQ(utf16le_encode_cases[i].bs,
686 utf16le_encode_cases[i].ws.UTF16LE_Encode())
687 << " for case number " << i;
688 }
689 }
690
TEST(fxcrt,WideStringCOperatorSubscript)691 TEST(fxcrt, WideStringCOperatorSubscript) {
692 // CFX_WideStringC includes the NUL terminator for non-empty strings.
693 CFX_WideStringC abc(L"abc");
694 EXPECT_EQ(L'a', abc.CharAt(0));
695 EXPECT_EQ(L'b', abc.CharAt(1));
696 EXPECT_EQ(L'c', abc.CharAt(2));
697 EXPECT_EQ(L'\0', abc.CharAt(3));
698 }
699
TEST(fxcrt,WideStringCOperatorLT)700 TEST(fxcrt, WideStringCOperatorLT) {
701 CFX_WideStringC empty;
702 CFX_WideStringC a(L"a");
703 CFX_WideStringC abc(L"\x0110qq"); // Comes before despite endianness.
704 CFX_WideStringC def(L"\x1001qq"); // Comes after despite endianness.
705
706 EXPECT_FALSE(empty < empty);
707 EXPECT_FALSE(a < a);
708 EXPECT_FALSE(abc < abc);
709 EXPECT_FALSE(def < def);
710
711 EXPECT_TRUE(empty < a);
712 EXPECT_FALSE(a < empty);
713
714 EXPECT_TRUE(empty < abc);
715 EXPECT_FALSE(abc < empty);
716
717 EXPECT_TRUE(empty < def);
718 EXPECT_FALSE(def < empty);
719
720 EXPECT_TRUE(a < abc);
721 EXPECT_FALSE(abc < a);
722
723 EXPECT_TRUE(a < def);
724 EXPECT_FALSE(def < a);
725
726 EXPECT_TRUE(abc < def);
727 EXPECT_FALSE(def < abc);
728 }
729
TEST(fxcrt,WideStringCOperatorEQ)730 TEST(fxcrt, WideStringCOperatorEQ) {
731 CFX_WideStringC wide_string_c(L"hello");
732 EXPECT_TRUE(wide_string_c == wide_string_c);
733
734 CFX_WideStringC wide_string_c_same1(L"hello");
735 EXPECT_TRUE(wide_string_c == wide_string_c_same1);
736 EXPECT_TRUE(wide_string_c_same1 == wide_string_c);
737
738 CFX_WideStringC wide_string_c_same2(wide_string_c);
739 EXPECT_TRUE(wide_string_c == wide_string_c_same2);
740 EXPECT_TRUE(wide_string_c_same2 == wide_string_c);
741
742 CFX_WideStringC wide_string_c1(L"he");
743 CFX_WideStringC wide_string_c2(L"hellp");
744 CFX_WideStringC wide_string_c3(L"hellod");
745 EXPECT_FALSE(wide_string_c == wide_string_c1);
746 EXPECT_FALSE(wide_string_c == wide_string_c2);
747 EXPECT_FALSE(wide_string_c == wide_string_c3);
748 EXPECT_FALSE(wide_string_c1 == wide_string_c);
749 EXPECT_FALSE(wide_string_c2 == wide_string_c);
750 EXPECT_FALSE(wide_string_c3 == wide_string_c);
751
752 CFX_WideString wide_string_same1(L"hello");
753 EXPECT_TRUE(wide_string_c == wide_string_same1);
754 EXPECT_TRUE(wide_string_same1 == wide_string_c);
755
756 CFX_WideString wide_string1(L"he");
757 CFX_WideString wide_string2(L"hellp");
758 CFX_WideString wide_string3(L"hellod");
759 EXPECT_FALSE(wide_string_c == wide_string1);
760 EXPECT_FALSE(wide_string_c == wide_string2);
761 EXPECT_FALSE(wide_string_c == wide_string3);
762 EXPECT_FALSE(wide_string1 == wide_string_c);
763 EXPECT_FALSE(wide_string2 == wide_string_c);
764 EXPECT_FALSE(wide_string3 == wide_string_c);
765
766 const wchar_t* c_string_same1 = L"hello";
767 EXPECT_TRUE(wide_string_c == c_string_same1);
768 EXPECT_TRUE(c_string_same1 == wide_string_c);
769
770 const wchar_t* c_string1 = L"he";
771 const wchar_t* c_string2 = L"hellp";
772 const wchar_t* c_string3 = L"hellod";
773 EXPECT_FALSE(wide_string_c == c_string1);
774 EXPECT_FALSE(wide_string_c == c_string2);
775 EXPECT_FALSE(wide_string_c == c_string3);
776
777 EXPECT_FALSE(c_string1 == wide_string_c);
778 EXPECT_FALSE(c_string2 == wide_string_c);
779 EXPECT_FALSE(c_string3 == wide_string_c);
780 }
781
TEST(fxcrt,WideStringCOperatorNE)782 TEST(fxcrt, WideStringCOperatorNE) {
783 CFX_WideStringC wide_string_c(L"hello");
784 EXPECT_FALSE(wide_string_c != wide_string_c);
785
786 CFX_WideStringC wide_string_c_same1(L"hello");
787 EXPECT_FALSE(wide_string_c != wide_string_c_same1);
788 EXPECT_FALSE(wide_string_c_same1 != wide_string_c);
789
790 CFX_WideStringC wide_string_c_same2(wide_string_c);
791 EXPECT_FALSE(wide_string_c != wide_string_c_same2);
792 EXPECT_FALSE(wide_string_c_same2 != wide_string_c);
793
794 CFX_WideStringC wide_string_c1(L"he");
795 CFX_WideStringC wide_string_c2(L"hellp");
796 CFX_WideStringC wide_string_c3(L"hellod");
797 EXPECT_TRUE(wide_string_c != wide_string_c1);
798 EXPECT_TRUE(wide_string_c != wide_string_c2);
799 EXPECT_TRUE(wide_string_c != wide_string_c3);
800 EXPECT_TRUE(wide_string_c1 != wide_string_c);
801 EXPECT_TRUE(wide_string_c2 != wide_string_c);
802 EXPECT_TRUE(wide_string_c3 != wide_string_c);
803
804 CFX_WideString wide_string_same1(L"hello");
805 EXPECT_FALSE(wide_string_c != wide_string_same1);
806 EXPECT_FALSE(wide_string_same1 != wide_string_c);
807
808 CFX_WideString wide_string1(L"he");
809 CFX_WideString wide_string2(L"hellp");
810 CFX_WideString wide_string3(L"hellod");
811 EXPECT_TRUE(wide_string_c != wide_string1);
812 EXPECT_TRUE(wide_string_c != wide_string2);
813 EXPECT_TRUE(wide_string_c != wide_string3);
814 EXPECT_TRUE(wide_string1 != wide_string_c);
815 EXPECT_TRUE(wide_string2 != wide_string_c);
816 EXPECT_TRUE(wide_string3 != wide_string_c);
817
818 const wchar_t* c_string_same1 = L"hello";
819 EXPECT_FALSE(wide_string_c != c_string_same1);
820 EXPECT_FALSE(c_string_same1 != wide_string_c);
821
822 const wchar_t* c_string1 = L"he";
823 const wchar_t* c_string2 = L"hellp";
824 const wchar_t* c_string3 = L"hellod";
825 EXPECT_TRUE(wide_string_c != c_string1);
826 EXPECT_TRUE(wide_string_c != c_string2);
827 EXPECT_TRUE(wide_string_c != c_string3);
828
829 EXPECT_TRUE(c_string1 != wide_string_c);
830 EXPECT_TRUE(c_string2 != wide_string_c);
831 EXPECT_TRUE(c_string3 != wide_string_c);
832 }
833
TEST(fxcrt,WideStringCFind)834 TEST(fxcrt, WideStringCFind) {
835 CFX_WideStringC null_string;
836 EXPECT_EQ(-1, null_string.Find(L'a'));
837 EXPECT_EQ(-1, null_string.Find(0));
838
839 CFX_WideStringC empty_string(L"");
840 EXPECT_EQ(-1, empty_string.Find(L'a'));
841 EXPECT_EQ(-1, empty_string.Find(0));
842
843 CFX_WideStringC single_string(L"a");
844 EXPECT_EQ(0, single_string.Find(L'a'));
845 EXPECT_EQ(-1, single_string.Find(L'b'));
846 EXPECT_EQ(-1, single_string.Find(0));
847
848 CFX_WideStringC longer_string(L"abccc");
849 EXPECT_EQ(0, longer_string.Find(L'a'));
850 EXPECT_EQ(2, longer_string.Find(L'c'));
851 EXPECT_EQ(-1, longer_string.Find(0));
852
853 CFX_WideStringC hibyte_string(
854 L"ab\xff08"
855 L"def");
856 EXPECT_EQ(2, hibyte_string.Find(L'\xff08'));
857 }
858
TEST(fxcrt,WideStringFormatWidth)859 TEST(fxcrt, WideStringFormatWidth) {
860 {
861 CFX_WideString str;
862 str.Format(L"%5d", 1);
863 EXPECT_EQ(L" 1", str);
864 }
865
866 {
867 CFX_WideString str;
868 str.Format(L"%d", 1);
869 EXPECT_EQ(L"1", str);
870 }
871
872 {
873 CFX_WideString str;
874 str.Format(L"%*d", 5, 1);
875 EXPECT_EQ(L" 1", str);
876 }
877
878 {
879 CFX_WideString str;
880 str.Format(L"%-1d", 1);
881 EXPECT_EQ(L"1", str);
882 }
883
884 {
885 CFX_WideString str;
886 str.Format(L"%0d", 1);
887 EXPECT_EQ(L"1", str);
888 }
889
890 {
891 CFX_WideString str;
892 str.Format(L"%1048576d", 1);
893 EXPECT_EQ(L"Bad width", str);
894 }
895 }
896
TEST(fxcrt,WideStringFormatPrecision)897 TEST(fxcrt, WideStringFormatPrecision) {
898 {
899 CFX_WideString str;
900 str.Format(L"%.2f", 1.12345);
901 EXPECT_EQ(L"1.12", str);
902 }
903
904 {
905 CFX_WideString str;
906 str.Format(L"%.*f", 3, 1.12345);
907 EXPECT_EQ(L"1.123", str);
908 }
909
910 {
911 CFX_WideString str;
912 str.Format(L"%f", 1.12345);
913 EXPECT_EQ(L"1.123450", str);
914 }
915
916 {
917 CFX_WideString str;
918 str.Format(L"%-1f", 1.12345);
919 EXPECT_EQ(L"1.123450", str);
920 }
921
922 {
923 CFX_WideString str;
924 str.Format(L"%0f", 1.12345);
925 EXPECT_EQ(L"1.123450", str);
926 }
927
928 {
929 CFX_WideString str;
930 str.Format(L"%.1048576f", 1.2);
931 EXPECT_EQ(L"Bad precision", str);
932 }
933 }
934
TEST(fxcrt,EmptyWideString)935 TEST(fxcrt, EmptyWideString) {
936 CFX_WideString empty_str;
937 EXPECT_TRUE(empty_str.IsEmpty());
938 EXPECT_EQ(0, empty_str.GetLength());
939 const FX_WCHAR* cstr = empty_str.c_str();
940 EXPECT_EQ(0, FXSYS_wcslen(cstr));
941 }
942