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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: tests/strings/vsnprintf.cpp | |
3 | // Purpose: wxVsnprintf unit test | |
4 | // Author: Francesco Montorsi | |
5 | // (part of this file was taken from CMP.c of TRIO package | |
6 | // written by Bjorn Reese and Daniel Stenberg) | |
7 | // Created: 2006-04-01 | |
8 | // RCS-ID: $Id$ | |
9 | // Copyright: (c) 2006 Francesco Montorsi, Bjorn Reese and Daniel Stenberg | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ---------------------------------------------------------------------------- | |
13 | // headers | |
14 | // ---------------------------------------------------------------------------- | |
15 | ||
16 | #include "testprec.h" | |
17 | ||
18 | #ifdef __BORLANDC__ | |
19 | #pragma hdrstop | |
20 | #endif | |
21 | ||
22 | #include "wx/crt.h" | |
23 | ||
24 | #if wxUSE_WXVSNPRINTF | |
25 | ||
26 | #ifndef WX_PRECOMP | |
27 | #include "wx/wx.h" | |
28 | #include "wx/wxchar.h" | |
29 | #endif // WX_PRECOMP | |
30 | ||
31 | ||
32 | // NOTE: for more info about the specification of wxVsnprintf() behaviour you can | |
33 | // refer to the following page of the GNU libc manual: | |
34 | // http://www.gnu.org/software/libc/manual/html_node/Formatted-Output.html | |
35 | ||
36 | ||
37 | // ---------------------------------------------------------------------------- | |
38 | // global utilities for testing | |
39 | // ---------------------------------------------------------------------------- | |
40 | ||
41 | #define MAX_TEST_LEN 1024 | |
42 | ||
43 | // temporary buffers | |
44 | static wxChar buf[MAX_TEST_LEN]; | |
45 | int r; | |
46 | ||
47 | // these macros makes it possible to write all tests without repeating a lot | |
48 | // of times the wxT() macro | |
49 | // NOTE: you should use expected strings with these macros which do not exceed | |
50 | // MAX_TEST_LEN as these macro do check if the return value is == (int)wxStrlen(buf) | |
51 | ||
52 | #define ASSERT_STR_EQUAL( a, b ) \ | |
53 | CPPUNIT_ASSERT_EQUAL( wxString(a), wxString(b) ); | |
54 | ||
55 | #define CMP6(expected, fmt, y, z, w, t) \ | |
56 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z, w, t); \ | |
57 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
58 | ASSERT_STR_EQUAL( wxT(expected), buf ); | |
59 | ||
60 | #define CMP5(expected, fmt, y, z, w) \ | |
61 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z, w); \ | |
62 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
63 | ASSERT_STR_EQUAL( wxT(expected), buf ); | |
64 | ||
65 | #define CMP4(expected, fmt, y, z) \ | |
66 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z); \ | |
67 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
68 | ASSERT_STR_EQUAL( wxT(expected), buf ); | |
69 | ||
70 | #define CMP3(expected, fmt, y) \ | |
71 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y); \ | |
72 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
73 | ASSERT_STR_EQUAL( wxT(expected), buf ); | |
74 | ||
75 | #define CMP3i(expected, fmt, y) \ | |
76 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y); \ | |
77 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
78 | WX_ASSERT_MESSAGE( ("Expected \"%s\", got \"%s\"", expected, buf), \ | |
79 | wxStricmp(expected, buf) == 0 ); | |
80 | ||
81 | #define CMP2(expected, fmt) \ | |
82 | r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt)); \ | |
83 | CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \ | |
84 | ASSERT_STR_EQUAL( wxT(expected), buf ); | |
85 | ||
86 | // NOTE: this macro is used also with too-small buffers (see Miscellaneous()) | |
87 | // test function, thus the return value can be > size and thus we | |
88 | // cannot check if r == (int)wxStrlen(buf) | |
89 | #define CMPTOSIZE(buffer, size, failuremsg, expected, fmt, x, y, z, w) \ | |
90 | r=wxSnprintf(buffer, size, wxT(fmt), x, y, z, w); \ | |
91 | CPPUNIT_ASSERT( r > 0 ); \ | |
92 | CPPUNIT_ASSERT_EQUAL_MESSAGE( \ | |
93 | failuremsg, \ | |
94 | wxString(wxT(expected)).Left(size - 1), \ | |
95 | wxString(buffer)) | |
96 | ||
97 | // this is the same as wxSnprintf() but it passes the format string to | |
98 | // wxVsnprintf() without using WX_ATTRIBUTE_PRINTF and thus suppresses the gcc | |
99 | // checks (and resulting warnings) for the format string | |
100 | // | |
101 | // use with extreme care and only when you're really sure the warnings must be | |
102 | // suppressed! | |
103 | template<typename T> | |
104 | static int | |
105 | wxUnsafeSnprintf(T *buf, size_t len, const wxChar *fmt, ...) | |
106 | { | |
107 | va_list args; | |
108 | va_start(args, fmt); | |
109 | ||
110 | int rc = wxVsnprintf(buf, len, fmt, args); | |
111 | ||
112 | va_end(args); | |
113 | ||
114 | return rc; | |
115 | } | |
116 | ||
117 | // ---------------------------------------------------------------------------- | |
118 | // test class | |
119 | // ---------------------------------------------------------------------------- | |
120 | ||
121 | class VsnprintfTestCase : public CppUnit::TestCase | |
122 | { | |
123 | public: | |
124 | VsnprintfTestCase() {} | |
125 | ||
126 | virtual void setUp(); | |
127 | ||
128 | private: | |
129 | CPPUNIT_TEST_SUITE( VsnprintfTestCase ); | |
130 | CPPUNIT_TEST( C ); | |
131 | CPPUNIT_TEST( D ); | |
132 | CPPUNIT_TEST( X ); | |
133 | CPPUNIT_TEST( O ); | |
134 | CPPUNIT_TEST( P ); | |
135 | CPPUNIT_TEST( N ); | |
136 | CPPUNIT_TEST( E ); | |
137 | CPPUNIT_TEST( F ); | |
138 | CPPUNIT_TEST( G ); | |
139 | CPPUNIT_TEST( S ); | |
140 | CPPUNIT_TEST( Asterisk ); | |
141 | CPPUNIT_TEST( Percent ); | |
142 | #ifdef wxLongLong_t | |
143 | CPPUNIT_TEST( LongLong ); | |
144 | #endif | |
145 | ||
146 | CPPUNIT_TEST( BigToSmallBuffer ); | |
147 | CPPUNIT_TEST( WrongFormatStrings ); | |
148 | CPPUNIT_TEST( Miscellaneous ); | |
149 | CPPUNIT_TEST( GlibcMisc1 ); | |
150 | CPPUNIT_TEST( GlibcMisc2 ); | |
151 | CPPUNIT_TEST_SUITE_END(); | |
152 | ||
153 | void C(); | |
154 | void D(); | |
155 | void X(); | |
156 | void O(); | |
157 | void P(); | |
158 | void N(); | |
159 | void E(); | |
160 | void F(); | |
161 | void G(); | |
162 | void S(); | |
163 | void Asterisk(); | |
164 | void Percent(); | |
165 | #ifdef wxLongLong_t | |
166 | void LongLong(); | |
167 | #endif | |
168 | void Unicode(); | |
169 | ||
170 | template<typename T> | |
171 | void DoBigToSmallBuffer(T *buffer, int size); | |
172 | void BigToSmallBuffer(); | |
173 | ||
174 | void WrongFormatStrings(); | |
175 | ||
176 | // compares the expectedString and the result of wxVsnprintf() char by char | |
177 | // for all its lenght (not only for first expectedLen chars) and also | |
178 | // checks the return value | |
179 | void DoMisc(int expectedLen, const wxString& expectedString, | |
180 | size_t max, const wxChar *format, ...); | |
181 | void Miscellaneous(); | |
182 | ||
183 | void GlibcMisc1(); | |
184 | void GlibcMisc2(); | |
185 | ||
186 | DECLARE_NO_COPY_CLASS(VsnprintfTestCase) | |
187 | }; | |
188 | ||
189 | // register in the unnamed registry so that these tests are run by default | |
190 | CPPUNIT_TEST_SUITE_REGISTRATION( VsnprintfTestCase ); | |
191 | ||
192 | // also include in its own registry so that these tests can be run alone | |
193 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VsnprintfTestCase, "VsnprintfTestCase" ); | |
194 | ||
195 | void VsnprintfTestCase::setUp() | |
196 | { | |
197 | // this call is required to avoid check failures when running on machines | |
198 | // with a locale where the decimal point is not '.' | |
199 | wxSetlocale(LC_ALL, "C"); | |
200 | } | |
201 | ||
202 | void VsnprintfTestCase::C() | |
203 | { | |
204 | CMP5("hi!", "%c%c%c", wxT('h'), wxT('i'), wxT('!')); | |
205 | ||
206 | // NOTE: | |
207 | // the NULL characters _can_ be passed to %c to e.g. create strings | |
208 | // with embedded NULs (because strings are not always supposed to be | |
209 | // NUL-terminated). | |
210 | ||
211 | DoMisc(14, wxT("Hello \0 World!"), 16, wxT("Hello %c World!"), wxT('\0')); | |
212 | } | |
213 | ||
214 | void VsnprintfTestCase::D() | |
215 | { | |
216 | CMP3("+123456", "%+d", 123456); | |
217 | CMP3("-123456", "%d", -123456); | |
218 | CMP3(" 123456", "% d", 123456); | |
219 | CMP3(" 123456", "%10d", 123456); | |
220 | CMP3("0000123456", "%010d", 123456); | |
221 | CMP3("-123456 ", "%-10d", -123456); | |
222 | } | |
223 | ||
224 | void VsnprintfTestCase::X() | |
225 | { | |
226 | CMP3("ABCD", "%X", 0xABCD); | |
227 | CMP3("0XABCD", "%#X", 0xABCD); | |
228 | CMP3("0xabcd", "%#x", 0xABCD); | |
229 | } | |
230 | ||
231 | void VsnprintfTestCase::O() | |
232 | { | |
233 | CMP3("1234567", "%o", 01234567); | |
234 | CMP3("01234567", "%#o", 01234567); | |
235 | } | |
236 | ||
237 | void VsnprintfTestCase::P() | |
238 | { | |
239 | // The exact format used for "%p" is not specified by the standard and so | |
240 | // varies among different platforms, so we need to expect different results | |
241 | // here (remember that while we test our own wxPrintf() code here, it uses | |
242 | // the system sprintf() for actual formatting so the results are still | |
243 | // different under different systems). | |
244 | ||
245 | #ifdef wxUSING_VC_CRT_IO | |
246 | // MSVC always prints pointers as %8X on 32 bit systems and as %16X on 64 | |
247 | // bit systems. | |
248 | #if SIZEOF_VOID_P == 4 | |
249 | CMP3i("00ABCDEF", "%p", (void*)0xABCDEF); | |
250 | CMP3("00000000", "%p", (void*)NULL); | |
251 | #elif SIZEOF_VOID_P == 8 | |
252 | CMP3i("0000ABCDEFABCDEF", "%p", (void*)0xABCDEFABCDEF); | |
253 | CMP3("0000000000000000", "%p", (void*)NULL); | |
254 | #endif | |
255 | #elif defined(__MINGW32__) | |
256 | // mingw32 uses MSVC CRT in old versions but is own implementation now | |
257 | // which is somewhere in the middle as it uses %8x, so to catch both cases | |
258 | // we use case-insensitive comparison here. | |
259 | CMP3("0xabcdef", "%p", (void*)0xABCDEF); | |
260 | CMP3("0", "%p", (void*)NULL); | |
261 | #elif defined(__GNUG__) | |
262 | // glibc prints pointers as %#x except for NULL pointers which are printed | |
263 | // as '(nil)'. | |
264 | CMP3("0xabcdef", "%p", (void*)0xABCDEF); | |
265 | CMP3("(nil)", "%p", (void*)NULL); | |
266 | #endif | |
267 | } | |
268 | ||
269 | void VsnprintfTestCase::N() | |
270 | { | |
271 | int nchar; | |
272 | ||
273 | wxSnprintf(buf, MAX_TEST_LEN, wxT("%d %s%n\n"), 3, wxT("bears"), &nchar); | |
274 | CPPUNIT_ASSERT_EQUAL( 7, nchar ); | |
275 | } | |
276 | ||
277 | void VsnprintfTestCase::E() | |
278 | { | |
279 | // NB: there are no standards about the minimum exponent width | |
280 | // (and the width of the %e conversion specifier refers to the | |
281 | // mantissa, not to the exponent). | |
282 | // Since newer MSVC versions use 3 digits as minimum exponent | |
283 | // width while GNU libc uses 2 digits as minimum width, here we | |
284 | // workaround this problem using for the exponent values with at | |
285 | // least three digits. | |
286 | // Some examples: | |
287 | // printf("%e",2.342E+02); | |
288 | // -> under MSVC7.1 prints: 2.342000e+002 | |
289 | // -> under GNU libc 2.4 prints: 2.342000e+02 | |
290 | CMP3("2.342000e+112", "%e",2.342E+112); | |
291 | CMP3("-2.3420e-112", "%10.4e",-2.342E-112); | |
292 | CMP3("-2.3420e-112", "%11.4e",-2.342E-112); | |
293 | CMP3(" -2.3420e-112", "%15.4e",-2.342E-112); | |
294 | ||
295 | CMP3("-0.02342", "%G",-2.342E-02); | |
296 | CMP3("3.1415E-116", "%G",3.1415e-116); | |
297 | CMP3("0003.141500e+103", "%016e", 3141.5e100); | |
298 | CMP3(" 3.141500e+103", "%16e", 3141.5e100); | |
299 | CMP3("3.141500e+103 ", "%-16e", 3141.5e100); | |
300 | CMP3("3.142e+103", "%010.3e", 3141.5e100); | |
301 | } | |
302 | ||
303 | void VsnprintfTestCase::F() | |
304 | { | |
305 | CMP3("3.300000", "%5f", 3.3); | |
306 | CMP3("3.000000", "%5f", 3.0); | |
307 | CMP3("0.000100", "%5f", .999999E-4); | |
308 | CMP3("0.000990", "%5f", .99E-3); | |
309 | CMP3("3333.000000", "%5f", 3333.0); | |
310 | } | |
311 | ||
312 | void VsnprintfTestCase::G() | |
313 | { | |
314 | // NOTE: the same about E() testcase applies here... | |
315 | ||
316 | CMP3(" 3.3", "%5g", 3.3); | |
317 | CMP3(" 3", "%5g", 3.0); | |
318 | CMP3("9.99999e-115", "%5g", .999999E-114); | |
319 | CMP3("0.00099", "%5g", .99E-3); | |
320 | CMP3(" 3333", "%5g", 3333.0); | |
321 | CMP3(" 0.01", "%5g", 0.01); | |
322 | ||
323 | CMP3(" 3", "%5.g", 3.3); | |
324 | CMP3(" 3", "%5.g", 3.0); | |
325 | CMP3("1e-114", "%5.g", .999999E-114); | |
326 | CMP3("0.0001", "%5.g", 1.0E-4); | |
327 | CMP3("0.001", "%5.g", .99E-3); | |
328 | CMP3("3e+103", "%5.g", 3333.0E100); | |
329 | CMP3(" 0.01", "%5.g", 0.01); | |
330 | ||
331 | CMP3(" 3.3", "%5.2g", 3.3); | |
332 | CMP3(" 3", "%5.2g", 3.0); | |
333 | CMP3("1e-114", "%5.2g", .999999E-114); | |
334 | CMP3("0.00099", "%5.2g", .99E-3); | |
335 | CMP3("3.3e+103", "%5.2g", 3333.0E100); | |
336 | CMP3(" 0.01", "%5.2g", 0.01); | |
337 | } | |
338 | ||
339 | void VsnprintfTestCase::S() | |
340 | { | |
341 | CMP3(" abc", "%5s", wxT("abc")); | |
342 | CMP3(" a", "%5s", wxT("a")); | |
343 | CMP3("abcdefghi", "%5s", wxT("abcdefghi")); | |
344 | CMP3("abc ", "%-5s", wxT("abc")); | |
345 | CMP3("abcdefghi", "%-5s", wxT("abcdefghi")); | |
346 | ||
347 | CMP3("abcde", "%.5s", wxT("abcdefghi")); | |
348 | ||
349 | // do the same tests but with Unicode characters: | |
350 | #if wxUSE_UNICODE | |
351 | ||
352 | // Unicode code points from U+03B1 to U+03B9 are the greek letters alpha-iota; | |
353 | // UTF8 encoding of such code points is 0xCEB1 to 0xCEB9 | |
354 | ||
355 | #define ALPHA "\xCE\xB1" | |
356 | // alpha | |
357 | #define ABC "\xCE\xB1\xCE\xB2\xCE\xB3" | |
358 | // alpha+beta+gamma | |
359 | #define ABCDE "\xCE\xB1\xCE\xB2\xCE\xB3\xCE\xB4\xCE\xB5" | |
360 | // alpha+beta+gamma+delta+epsilon | |
361 | #define ABCDEFGHI "\xCE\xB1\xCE\xB2\xCE\xB3\xCE\xB4\xCE\xB5\xCE\xB6\xCE\xB7\xCE\xB8\xCE\xB9" | |
362 | // alpha+beta+gamma+delta+epsilon+zeta+eta+theta+iota | |
363 | ||
364 | // the 'expected' and 'arg' parameters of this macro are supposed to be | |
365 | // UTF-8 strings | |
366 | #define CMP3_UTF8(expected, fmt, arg) \ | |
367 | CPPUNIT_ASSERT_EQUAL \ | |
368 | ( \ | |
369 | wxString::FromUTF8(expected).length(), \ | |
370 | wxSnprintf(buf, MAX_TEST_LEN, fmt, wxString::FromUTF8(arg)) \ | |
371 | ); \ | |
372 | CPPUNIT_ASSERT_EQUAL \ | |
373 | ( \ | |
374 | wxString::FromUTF8(expected), \ | |
375 | buf \ | |
376 | ) | |
377 | ||
378 | CMP3_UTF8(" " ABC, "%5s", ABC); | |
379 | CMP3_UTF8(" " ALPHA, "%5s", ALPHA); | |
380 | CMP3_UTF8(ABCDEFGHI, "%5s", ABCDEFGHI); | |
381 | CMP3_UTF8(ABC " ", "%-5s", ABC); | |
382 | CMP3_UTF8(ABCDEFGHI, "%-5s", ABCDEFGHI); | |
383 | CMP3_UTF8(ABCDE, "%.5s", ABCDEFGHI); | |
384 | #endif // wxUSE_UNICODE | |
385 | ||
386 | // test a string which has a NULL character after "ab"; | |
387 | // obviously it should be handled exactly like just as "ab" | |
388 | CMP3(" ab", "%5s", wxT("ab\0cdefghi")); | |
389 | } | |
390 | ||
391 | void VsnprintfTestCase::Asterisk() | |
392 | { | |
393 | CMP5(" 0.1", "%*.*f", 10, 1, 0.123); | |
394 | CMP5(" 0.1230", "%*.*f", 10, 4, 0.123); | |
395 | CMP5("0.1", "%*.*f", 3, 1, 0.123); | |
396 | ||
397 | CMP4("%0.002", "%%%.*f", 3, 0.0023456789); | |
398 | ||
399 | CMP4(" a", "%*c", 8, 'a'); | |
400 | CMP4(" four", "%*s", 8, "four"); | |
401 | CMP6(" four four", "%*s %*s", 8, "four", 6, "four"); | |
402 | } | |
403 | ||
404 | void VsnprintfTestCase::Percent() | |
405 | { | |
406 | // some tests without any argument passed through ... | |
407 | CMP2("%", "%%"); | |
408 | CMP2("%%%", "%%%%%%"); | |
409 | ||
410 | CMP3("% abc", "%%%5s", wxT("abc")); | |
411 | CMP3("% abc%", "%%%5s%%", wxT("abc")); | |
412 | ||
413 | // do not test odd number of '%' symbols as different implementations | |
414 | // of snprintf() give different outputs as this situation is not considered | |
415 | // by any standard (in fact, GCC will also warn you about a spurious % if | |
416 | // you write %%% as argument of some *printf function !) | |
417 | // Compare(wxT("%"), wxT("%%%")); | |
418 | } | |
419 | ||
420 | #ifdef wxLongLong_t | |
421 | void VsnprintfTestCase::LongLong() | |
422 | { | |
423 | CMP3("123456789", "%lld", (wxLongLong_t)123456789); | |
424 | CMP3("-123456789", "%lld", (wxLongLong_t)-123456789); | |
425 | ||
426 | CMP3("123456789", "%llu", (wxULongLong_t)123456789); | |
427 | ||
428 | #ifdef __WINDOWS__ | |
429 | CMP3("123456789", "%I64d", (wxLongLong_t)123456789); | |
430 | CMP3("123456789abcdef", "%I64x", wxLL(0x123456789abcdef)); | |
431 | #endif | |
432 | } | |
433 | #endif | |
434 | ||
435 | void VsnprintfTestCase::WrongFormatStrings() | |
436 | { | |
437 | // test how wxVsnprintf() behaves with wrong format string: | |
438 | ||
439 | #if 0 | |
440 | // NB: the next 2 tests currently return an error but it would be nice | |
441 | // if they didn't (see ticket #9367) | |
442 | ||
443 | // two positionals with the same index: | |
444 | r = wxSnprintf(buf, MAX_TEST_LEN, wxT("%1$s %1$s"), "hello"); | |
445 | CPPUNIT_ASSERT(r != -1); | |
446 | ||
447 | // three positionals with the same index mixed with other pos args: | |
448 | r = wxSnprintf(buf, MAX_TEST_LEN, wxT("%4$d %2$f %1$s %2$s %3$d"), "hello", "world", 3, 4); | |
449 | CPPUNIT_ASSERT(r != -1); | |
450 | #endif | |
451 | ||
452 | // a missing positional arg should result in an assert | |
453 | WX_ASSERT_FAILS_WITH_ASSERT( | |
454 | wxSnprintf(buf, MAX_TEST_LEN, wxT("%1$d %3$d"), 1, 2, 3) ); | |
455 | ||
456 | // positional and non-positionals in the same format string: | |
457 | r = wxSnprintf(buf, MAX_TEST_LEN, wxT("%1$d %d %3$d"), 1, 2, 3); | |
458 | CPPUNIT_ASSERT_EQUAL(-1, r); | |
459 | } | |
460 | ||
461 | // BigToSmallBuffer() test case helper: | |
462 | template<typename T> | |
463 | void VsnprintfTestCase::DoBigToSmallBuffer(T *buffer, int size) | |
464 | { | |
465 | // Remember that wx*printf could be mapped either to system | |
466 | // implementation or to wx implementation. | |
467 | // In the first case, when the output buffer is too small, the returned | |
468 | // value can be the number of characters required for the output buffer | |
469 | // (conforming to ISO C99; implemented in e.g. GNU libc >= 2.1), or | |
470 | // just a negative number, usually -1; (this is how e.g. MSVC's | |
471 | // *printf() behaves). Luckily, in all implementations, when the | |
472 | // output buffer is too small, it's nonetheless filled up to its max size. | |
473 | // | |
474 | // Note that in the second case (i.e. when we're using our own implementation), | |
475 | // wxVsnprintf() will return the number of characters written in the standard | |
476 | // output or | |
477 | // -1 if there was an error in the format string | |
478 | // maxSize+1 if the output buffer is too small | |
479 | ||
480 | wxString errStr; | |
481 | errStr << "The size of the buffer was " << size; | |
482 | std::string errMsg(errStr.mb_str()); | |
483 | ||
484 | // test without positionals | |
485 | CMPTOSIZE(buffer, size, errMsg, | |
486 | "123456789012 - test - 123 -4.567", | |
487 | "%i%li - test - %d %.3f", | |
488 | 123, (long int)456789012, 123, -4.567); | |
489 | ||
490 | #if wxUSE_PRINTF_POS_PARAMS | |
491 | // test with positional | |
492 | CMPTOSIZE(buffer, size, errMsg, | |
493 | "-4.567 123 - test - 456789012 123", | |
494 | "%4$.3f %1$i - test - %2$li %3$d", | |
495 | 123, (long int)456789012, 123, -4.567); | |
496 | #endif | |
497 | ||
498 | // test unicode/ansi conversion specifiers | |
499 | // | |
500 | // NB: we use wxUnsafeSnprintf() as %hs and %hc are invalid in printf | |
501 | // format and gcc would warn about this otherwise | |
502 | ||
503 | r = wxUnsafeSnprintf(buffer, size, | |
504 | wxT("unicode string/char: %ls/%lc -- ansi string/char: %hs/%hc"), | |
505 | L"unicode", L'U', "ansi", 'A'); | |
506 | wxString expected = | |
507 | wxString(wxT("unicode string/char: unicode/U -- ansi string/char: ansi/A")).Left(size - 1); | |
508 | ||
509 | CPPUNIT_ASSERT( r != -1 ); | |
510 | CPPUNIT_ASSERT_EQUAL( | |
511 | expected, | |
512 | wxString(buffer) | |
513 | ); | |
514 | } | |
515 | ||
516 | void VsnprintfTestCase::BigToSmallBuffer() | |
517 | { | |
518 | // VC6 can't compile this code | |
519 | #if !defined(__VISUALC__) || (__VISUALC__ >= 1310) | |
520 | #if wxUSE_UNICODE | |
521 | wchar_t bufw[1024], bufw2[16], bufw3[4], bufw4; | |
522 | DoBigToSmallBuffer(bufw, 1024); | |
523 | DoBigToSmallBuffer(bufw2, 16); | |
524 | DoBigToSmallBuffer(bufw3, 4); | |
525 | DoBigToSmallBuffer(&bufw4, 1); | |
526 | #endif // wxUSE_UNICODE | |
527 | ||
528 | char bufa[1024], bufa2[16], bufa3[4], bufa4; | |
529 | DoBigToSmallBuffer(bufa, 1024); | |
530 | DoBigToSmallBuffer(bufa2, 16); | |
531 | DoBigToSmallBuffer(bufa3, 4); | |
532 | DoBigToSmallBuffer(&bufa4, 1); | |
533 | #endif // !VC6 | |
534 | } | |
535 | ||
536 | // Miscellaneous() test case helper: | |
537 | void VsnprintfTestCase::DoMisc( | |
538 | int expectedLen, | |
539 | const wxString& expectedString, | |
540 | size_t max, | |
541 | const wxChar *format, ...) | |
542 | { | |
543 | const size_t BUFSIZE = MAX_TEST_LEN - 1; | |
544 | size_t i; | |
545 | static int count = 0; | |
546 | ||
547 | wxASSERT(max <= BUFSIZE); | |
548 | ||
549 | for (i = 0; i < BUFSIZE; i++) | |
550 | buf[i] = '*'; | |
551 | buf[BUFSIZE] = 0; | |
552 | ||
553 | va_list ap; | |
554 | va_start(ap, format); | |
555 | ||
556 | int n = wxVsnprintf(buf, max, format, ap); | |
557 | ||
558 | va_end(ap); | |
559 | ||
560 | // Prepare messages so that it is possible to see from the error which | |
561 | // test was running. | |
562 | wxString errStr, overflowStr; | |
563 | errStr << wxT("No.: ") << ++count << wxT(", expected: ") << expectedLen | |
564 | << wxT(" '") << expectedString << wxT("', result: "); | |
565 | overflowStr << errStr << wxT("buffer overflow"); | |
566 | errStr << n << wxT(" '") << buf << wxT("'"); | |
567 | ||
568 | // turn them into std::strings | |
569 | std::string errMsg(errStr.mb_str()); | |
570 | std::string overflowMsg(overflowStr.mb_str()); | |
571 | ||
572 | CPPUNIT_ASSERT_MESSAGE(errMsg, | |
573 | (expectedLen == -1 && size_t(n) >= max) || expectedLen == n); | |
574 | ||
575 | CPPUNIT_ASSERT_MESSAGE(errMsg, expectedString == buf); | |
576 | ||
577 | for (i = max; i < BUFSIZE; i++) | |
578 | CPPUNIT_ASSERT_MESSAGE(overflowMsg, buf[i] == '*'); | |
579 | } | |
580 | ||
581 | void VsnprintfTestCase::Miscellaneous() | |
582 | { | |
583 | // expectedLen, expectedString, max, format, ... | |
584 | DoMisc(5, wxT("-1234"), 8, wxT("%d"), -1234); | |
585 | DoMisc(7, wxT("1234567"), 8, wxT("%d"), 1234567); | |
586 | DoMisc(-1, wxT("1234567"), 8, wxT("%d"), 12345678); | |
587 | DoMisc(-1, wxT("-123456"), 8, wxT("%d"), -1234567890); | |
588 | ||
589 | DoMisc(6, wxT("123456"), 8, wxT("123456")); | |
590 | DoMisc(7, wxT("1234567"), 8, wxT("1234567")); | |
591 | DoMisc(-1, wxT("1234567"), 8, wxT("12345678")); | |
592 | ||
593 | DoMisc(6, wxT("123450"), 8, wxT("12345%d"), 0); | |
594 | DoMisc(7, wxT("1234560"), 8, wxT("123456%d"), 0); | |
595 | DoMisc(-1, wxT("1234567"), 8, wxT("1234567%d"), 0); | |
596 | DoMisc(-1, wxT("1234567"), 8, wxT("12345678%d"), 0); | |
597 | ||
598 | DoMisc(6, wxT("12%45%"), 8, wxT("12%%45%%")); | |
599 | DoMisc(7, wxT("12%45%7"), 8, wxT("12%%45%%7")); | |
600 | DoMisc(-1, wxT("12%45%7"), 8, wxT("12%%45%%78")); | |
601 | ||
602 | DoMisc(5, wxT("%%%%%"), 6, wxT("%%%%%%%%%%")); | |
603 | DoMisc(6, wxT("%%%%12"), 7, wxT("%%%%%%%%%d"), 12); | |
604 | } | |
605 | ||
606 | ||
607 | /* (C) Copyright C E Chew | |
608 | * | |
609 | * Feel free to copy, use and distribute this software provided: | |
610 | * | |
611 | * 1. you do not pretend that you wrote it | |
612 | * 2. you leave this copyright notice intact. | |
613 | */ | |
614 | ||
615 | void VsnprintfTestCase::GlibcMisc1() | |
616 | { | |
617 | CMP3(" ", "%5.s", "xyz"); | |
618 | CMP3(" 33", "%5.f", 33.3); | |
619 | #ifdef wxUSING_VC_CRT_IO | |
620 | // see the previous notes about the minimum width of mantissa: | |
621 | CMP3(" 3e+008", "%8.e", 33.3e7); | |
622 | CMP3(" 3E+008", "%8.E", 33.3e7); | |
623 | CMP3("3e+001", "%.g", 33.3); | |
624 | CMP3("3E+001", "%.G", 33.3); | |
625 | #else | |
626 | CMP3(" 3e+08", "%8.e", 33.3e7); | |
627 | CMP3(" 3E+08", "%8.E", 33.3e7); | |
628 | CMP3("3e+01", "%.g", 33.3); | |
629 | CMP3("3E+01", "%.G", 33.3); | |
630 | #endif | |
631 | } | |
632 | ||
633 | void VsnprintfTestCase::GlibcMisc2() | |
634 | { | |
635 | int prec; | |
636 | wxString test_format; | |
637 | ||
638 | prec = 0; | |
639 | CMP4("3", "%.*g", prec, 3.3); | |
640 | ||
641 | prec = 0; | |
642 | CMP4("3", "%.*G", prec, 3.3); | |
643 | ||
644 | prec = 0; | |
645 | CMP4(" 3", "%7.*G", prec, 3.33); | |
646 | ||
647 | prec = 3; | |
648 | CMP4(" 041", "%04.*o", prec, 33); | |
649 | ||
650 | prec = 7; | |
651 | CMP4(" 0000033", "%09.*u", prec, 33); | |
652 | ||
653 | prec = 3; | |
654 | CMP4(" 021", "%04.*x", prec, 33); | |
655 | ||
656 | prec = 3; | |
657 | CMP4(" 021", "%04.*X", prec, 33); | |
658 | } | |
659 | ||
660 | #endif // wxUSE_WXVSNPRINTF | |
661 |