ReactOS 0.4.15-dev-6662-g1b3eed5
wcstombs-tests.c
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1/*
2 * PROJECT: ReactOS wcstombs Test Suite
3 * LICENSE: GPL v2 or any later version
4 * FILE: tests/wcstombs-tests/wcstombs-tests.c
5 * PURPOSE: Application for testing the CRT API's (wcstombs and wctomb) and the Win32 API WideCharToMultiByte for the Unicode to MultiByte string conversion
6 * COPYRIGHT: Copyright 2008 Colin Finck <colin@reactos.org>
7 */
8
9#include <windows.h>
10#include <stdio.h>
11#include <stdlib.h>
12#include <locale.h>
13#include <errno.h>
14
15/* Macros for simplification */
16#define SETLOCALE(locale) \
17 loc = setlocale(LC_ALL, locale); \
18 if(!loc) \
19 { \
20 puts("setlocale failed for " locale ", this locale is probably not installed on your system"); \
21 return; \
22 }
23
24#define OK(condition, fail_message, ...) \
25 if(!(condition)) \
26 printf("%d: " fail_message "\n", __LINE__, ##__VA_ARGS__);
27
28/* Global variables for easier handling */
29char mbc;
30char mbs[5];
31int ret;
32wchar_t wc1 = 228; /* Western Windows-1252 character */
33wchar_t wc2 = 1088; /* Russian Windows-1251 character not displayable for Windows-1252 */
34wchar_t wcs[5] = {'T', 'h', 1088, 'i', 0}; /* String with ASCII characters and a Russian character */
35wchar_t dbwcs[3] = {28953, 25152, 0}; /* String with Chinese (codepage 950) characters */
36
37
39{
40 char* loc;
41
42 puts("CRT-Tests");
43 puts("---------");
44
45 /* Current locale is "C", wcstombs should return the length of the input buffer without the terminating null character */
46 ret = wcstombs(NULL, dbwcs, 0);
47 OK(ret == 2, "ret is %d", ret);
48
50 OK(ret == -1, "ret is %d", ret);
51 OK(mbs[0] == 0, "mbs[0] is %d", mbs[0]);
52 OK(errno == EILSEQ, "errno is %d", errno);
53
54 ret = wcstombs(NULL, wcs, 0);
55 OK(ret == 4, "ret is %d", ret);
56
57 ret = wcstombs(mbs, wcs, ret);
58 OK(ret == -1, "ret is %d", ret);
59 OK(!strcmp(mbs, "Th"), "mbs is %s", mbs);
60 OK(errno == EILSEQ, "errno is %d", errno);
61
62 ret = wctomb(&mbc, wcs[0]);
63 OK(ret == 1, "ret is %d", ret);
64 OK(mbc == 84, "mbc is %d", mbc);
65
66 mbc = 84;
67 ret = wcstombs(&mbc, &dbwcs[0], 1);
68 OK(ret == -1, "ret is %d", ret);
69 OK(mbc == 84, "mbc is %d", mbc);
70
71 ret = wcstombs(mbs, wcs, 0);
72 OK(ret == 0, "ret is %d", ret);
73
74 /* The length for the null character (in any locale) is 0, but if you pass a variable, it will be set to 0 and wctomb returns 1 */
75 ret = wctomb(NULL, 0);
76 OK(ret == 0, "ret is %d", ret);
77
78 ret = wctomb(&mbc, 0);
79 OK(ret == 1, "ret is %d", ret);
80 OK(mbc == 0, "mbc is %d", mbc);
81
82 /* msvcr80.dll and later versions of CRT change mbc in the following call back to 0, msvcrt.dll from WinXP SP2 leaves it untouched */
83 mbc = 84;
84 ret = wctomb(&mbc, dbwcs[0]);
85 OK(ret == -1, "ret is %d", ret);
86 OK(errno == EILSEQ, "errno is %d", errno);
87 OK(mbc == 84, "mbc is %d", mbc);
88
89 /* With a real locale, -1 also becomes a possible return value in case of an invalid character */
90 SETLOCALE("German");
91 ret = wcstombs(NULL, dbwcs, 0);
92 OK(ret == -1, "ret is %d", ret);
93 OK(errno == EILSEQ, "errno is %d", errno);
94
95 ret = wcstombs(NULL, wcs, 2);
96 OK(ret == -1, "ret is %d", ret);
97 OK(errno == EILSEQ, "errno is %d", errno);
98
99 /* Test if explicitly setting the locale back to "C" also leads to the same results as above */
100 SETLOCALE("C");
101
102 ret = wcstombs(NULL, dbwcs, 0);
103 OK(ret == 2, "ret is %d", ret);
104
105 ret = wcstombs(NULL, wcs, 0);
106 OK(ret == 4, "ret is %d", ret);
107
108 /* Test wctomb() as well */
109 SETLOCALE("English");
110
111 ret = wctomb(&mbc, wc1);
112 OK(ret == 1, "ret is %d", ret);
113 OK(mbc == -28, "mbc is %d", mbc);
114
115 ret = wctomb(&mbc, wc2);
116 OK(ret == -1, "ret is %d", ret);
117 OK(errno == EILSEQ, "errno is %d", errno);
118 OK(mbc == 63, "mbc is %d", mbc);
119
120 SETLOCALE("Russian");
121
122 ret = wcstombs(mbs, wcs, sizeof(mbs));
123 OK(ret == 4, "ret is %d", ret);
124 OK(!strcmp(mbs, "Thi"), "mbs is %s", mbs);
125
126 ret = wctomb(&mbc, wc2);
127 OK(ret == 1, "ret is %d", ret);
128 OK(mbc == -16, "mbc is %d", mbc);
129
130 ret = wctomb(&mbc, wc1);
131 OK(ret == 1, "ret is %d", ret);
132 OK(mbc == 97, "mbc is %d", mbc);
133
134 SETLOCALE("English");
135
136 ret = wcstombs(&mbc, wcs, 1);
137 OK(ret == 1, "ret is %d", ret);
138 OK(mbc == 84, "mbc is %d", mbc);
139
140 ZeroMemory(mbs, sizeof(mbs));
141 ret = wcstombs(mbs, wcs, sizeof(mbs));
142 OK(ret == -1, "ret is %d", ret);
143 OK(errno == EILSEQ, "errno is %d", errno);
144 OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
145 mbs[0] = 0;
146
147 /* wcstombs mustn't add any null character automatically.
148 So in this case, we should get the same string again, even if we only copied the first three bytes. */
149 ret = wcstombs(mbs, wcs, 3);
150 OK(ret == -1, "ret is %d", ret);
151 OK(errno == EILSEQ, "errno is %d", errno);
152 OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
153 ZeroMemory(mbs, 5);
154
155 /* Now this shouldn't be the case like above as we zeroed the complete string buffer. */
156 ret = wcstombs(mbs, wcs, 3);
157 OK(ret == -1, "ret is %d", ret);
158 OK(errno == EILSEQ, "errno is %d", errno);
159 OK(!strcmp(mbs, "Th?"), "mbs is %s", mbs);
160
161 /* Double-byte tests */
162 SETLOCALE("Chinese");
163 ret = wcstombs(mbs, dbwcs, sizeof(mbs));
164 OK(ret == 4, "ret is %d", ret);
165 OK(!strcmp(mbs, "H"), "mbs is %s", mbs);
166 ZeroMemory(mbs, 5);
167
168 /* Length-only tests */
169 SETLOCALE("English");
170 ret = wcstombs(NULL, wcs, 0);
171 OK(ret == -1, "ret is %d", ret);
172 OK(errno == EILSEQ, "errno is %d", errno);
173
174 SETLOCALE("Chinese");
175 ret = wcstombs(NULL, dbwcs, 0);
176 OK(ret == 4, "ret is %d", ret);
177
178 /* This call causes an ERROR_INSUFFICIENT_BUFFER in the called WideCharToMultiByte function.
179 For some reason, wcstombs under Windows doesn't reset the last error to the previous value here, so we can check for ERROR_INSUFFICIENT_BUFFER with GetLastError().
180 This could also be seen as an indication that Windows uses WideCharToMultiByte internally for wcstombs. */
181 ret = wcstombs(mbs, dbwcs, 1);
182 OK(ret == 0, "ret is %d", ret);
183 OK(mbs[0] == 0, "mbs[0] is %d", mbs[0]);
184
185 /* ERROR_INSUFFICIENT_BUFFER is also the result of this call with SBCS characters. WTF?!
186 Anyway this is a Win32 error not related to the CRT, so we leave out this criteria. */
187 ret = wcstombs(mbs, wcs, 1);
188 OK(ret == 1, "ret is %d", ret);
189 OK(mbs[0] == 84, "mbs[0] is %d", mbs[0]);
190
191 putchar('\n');
192}
193
194void Win32_Tests(LPBOOL bUsedDefaultChar)
195{
196 SetLastError(0xdeadbeef);
197
198 puts("Win32-Tests");
199 puts("-----------");
200
201 ret = WideCharToMultiByte(1252, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
202 OK(ret == 1, "ret is %d", ret);
203 OK(mbc == -28, "mbc is %d", mbc);
204 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
205 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
206
207 ret = WideCharToMultiByte(1252, 0, &wc2, 1, &mbc, 1, NULL, bUsedDefaultChar);
208 OK(ret == 1, "ret is %d", ret);
209 OK(mbc == 63, "mbc is %d", mbc);
210 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
211 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
212
213 ret = WideCharToMultiByte(1251, 0, &wc2, 1, &mbc, 1, NULL, bUsedDefaultChar);
214 OK(ret == 1, "ret is %d", ret);
215 OK(mbc == -16, "mbc is %d", mbc);
216 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
217 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
218
219 ret = WideCharToMultiByte(1251, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
220 OK(ret == 1, "ret is %d", ret);
221 OK(mbc == 97, "mbc is %d", mbc);
222 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
223 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
224
225 /* The behaviour for this character is different when WC_NO_BEST_FIT_CHARS is used */
226 ret = WideCharToMultiByte(1251, WC_NO_BEST_FIT_CHARS, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
227 OK(ret == 1, "ret is %d", ret);
228 OK(mbc == 63, "mbc is %d", mbc);
229 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
230 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
231
232 ret = WideCharToMultiByte(1252, 0, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
233 OK(ret == 3, "ret is %d", ret);
234 OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
235 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
236 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
237 ZeroMemory(mbs, 5);
238
239 ret = WideCharToMultiByte(1252, WC_NO_BEST_FIT_CHARS, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
240 OK(ret == 3, "ret is %d", ret);
241 OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
242 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
243 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
244
245 /* This call triggers the last Win32 error */
246 ret = WideCharToMultiByte(1252, 0, wcs, -1, &mbc, 1, NULL, bUsedDefaultChar);
247 OK(ret == 0, "ret is %d", ret);
248 OK(mbc == 84, "mbc is %d", mbc);
249 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
250 OK(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "GetLastError() is %lu", GetLastError());
251 SetLastError(0xdeadbeef);
252
253 ret = WideCharToMultiByte(1252, 0, wcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
254 OK(ret == 5, "ret is %d", ret);
255 OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
256 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
257 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
258 mbs[0] = 0;
259
260 /* WideCharToMultiByte mustn't add any null character automatically.
261 So in this case, we should get the same string again, even if we only copied the first three bytes. */
262 ret = WideCharToMultiByte(1252, 0, wcs, 3, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
263 OK(ret == 3, "ret is %d", ret);
264 OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
265 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
266 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
267 ZeroMemory(mbs, 5);
268
269 /* Now this shouldn't be the case like above as we zeroed the complete string buffer. */
270 ret = WideCharToMultiByte(1252, 0, wcs, 3, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
271 OK(ret == 3, "ret is %d", ret);
272 OK(!strcmp(mbs, "Th?"), "mbs is %s", mbs);
273 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
274 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
275
276 /* Chinese codepage tests
277 Swapping the WC_NO_BEST_FIT_CHARS and 0 tests causes bUsedDefaultChar to be set to TRUE in the following test, which quits with ERROR_INSUFFICIENT_BUFFER.
278 But as it isn't documented whether all other variables are undefined if ERROR_INSUFFICIENT_BUFFER is set, we skip this behaviour. */
279 ret = WideCharToMultiByte(950, WC_NO_BEST_FIT_CHARS, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
280 OK(ret == 1, "ret is %d", ret);
281 OK(mbc == 63, "mbc is %d", mbc);
282 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
283 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
284
285 ret = WideCharToMultiByte(950, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
286 OK(ret == 1, "ret is %d", ret);
287 OK(mbc == 97, "mbc is %d", mbc);
288 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
289 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
290
291 /* Double-byte tests */
292 ret = WideCharToMultiByte(950, 0, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
293 OK(ret == 5, "ret is %d", ret);
294 OK(!strcmp(mbs, "H"), "mbs is %s", mbs);
295 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
296 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
297
298 ret = WideCharToMultiByte(950, 0, dbwcs, 1, &mbc, 1, NULL, bUsedDefaultChar);
299 OK(ret == 0, "ret is %d", ret);
300 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
301 OK(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "GetLastError() is %lu", GetLastError());
302 SetLastError(0xdeadbeef);
303 ZeroMemory(mbs, 5);
304
305 ret = WideCharToMultiByte(950, 0, dbwcs, 1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
306 OK(ret == 2, "ret is %d", ret);
307 OK(!strcmp(mbs, "H"), "mbs is %s", mbs);
308 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
309 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
310
311 /* Length-only tests */
312 ret = WideCharToMultiByte(1252, 0, &wc2, 1, NULL, 0, NULL, bUsedDefaultChar);
313 OK(ret == 1, "ret is %d", ret);
314 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
315 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
316
317 ret = WideCharToMultiByte(1252, 0, wcs, -1, NULL, 0, NULL, bUsedDefaultChar);
318 OK(ret == 5, "ret is %d", ret);
319 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
320 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
321
322 ret = WideCharToMultiByte(950, 0, dbwcs, 1, NULL, 0, NULL, bUsedDefaultChar);
323 OK(ret == 2, "ret is %d", ret);
324 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
325 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
326
327 ret = WideCharToMultiByte(950, 0, dbwcs, -1, NULL, 0, NULL, bUsedDefaultChar);
328 OK(ret == 5, "ret is %d", ret);
329 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
330 OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
331
332 /* Abnormal uses of WideCharToMultiByte */
333 ret = WideCharToMultiByte(1252, 0, NULL, 5, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
334 OK(ret == 0, "ret is %d", ret);
335 if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
336 OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
337 SetLastError(0xdeadbeef);
338
339 ret = WideCharToMultiByte(0, 0, dbwcs, 5, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
340 OK(ret == 5, "ret is %d", ret);
341 OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
342 if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
343
344 ret = WideCharToMultiByte(1252, 0, wcs, -1, (LPSTR)wcs, 5, NULL, bUsedDefaultChar);
345 OK(ret == 0, "ret is %d", ret);
346 OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
347 SetLastError(0xdeadbeef);
348
349 ret = WideCharToMultiByte(1252, 0, wcs, -1, mbs, -1, NULL, bUsedDefaultChar);
350 OK(ret == 0, "ret is %d", ret);
351 OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
352 SetLastError(0xdeadbeef);
353
354 putchar('\n');
355}
356
357int main()
358{
359 BOOL UsedDefaultChar;
360
361 CRT_Tests();
362
363 /* There are two code pathes in WideCharToMultiByte, one when Flags || DefaultChar || UsedDefaultChar is set and one when it's not.
364 Test both here. */
366 Win32_Tests(&UsedDefaultChar);
367
368 return 0;
369}
int strcmp(const char *String1, const char *String2)
Definition: utclib.c:469
int puts(const char *string)
Definition: crtsupp.c:23
int putchar(int c)
Definition: crtsupp.c:12
#define ERROR_INSUFFICIENT_BUFFER
Definition: dderror.h:10
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
#define ERROR_INVALID_PARAMETER
Definition: compat.h:101
#define SetLastError(x)
Definition: compat.h:752
#define WideCharToMultiByte
Definition: compat.h:111
unsigned int BOOL
Definition: ntddk_ex.h:94
#define WC_NO_BEST_FIT_CHARS
Definition: unicode.h:46
size_t __cdecl wcstombs(_Out_writes_opt_z_(_MaxCount) char *_Dest, _In_z_ const wchar_t *_Source, _In_ size_t _MaxCount)
#define errno
Definition: errno.h:18
#define EILSEQ
Definition: errno.h:109
#define wctomb(cp, wc)
Definition: wchar.h:161
char mbs[5]
#define OK(condition, fail_message,...)
wchar_t dbwcs[3]
int ret
void CRT_Tests()
#define SETLOCALE(locale)
char mbc
wchar_t wc1
int main()
void Win32_Tests(LPBOOL bUsedDefaultChar)
wchar_t wcs[5]
wchar_t wc2
#define ZeroMemory
Definition: winbase.h:1700
DWORD WINAPI GetLastError(void)
Definition: except.c:1042
BOOL * LPBOOL
Definition: windef.h:162
char * LPSTR
Definition: xmlstorage.h:182