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reactos/rostests/tests/wcstombs-tests/wcstombs-tests.c
Colin Finck 678aeae6f0 Revert r37916 and add some correct tests for WC_NO_BEST_FIT_CHARS, which pass under Windows XP SP3. 
They show that our implementation still has some bugs here and there.

svn path=/trunk/; revision=37947
2008-12-08 22:18:50 +00:00

370 lines
16 KiB
C
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/*
* PROJECT: ReactOS wcstombs Test Suite
* LICENSE: GPL v2 or any later version
* FILE: tests/wcstombs-tests/wcstombs-tests.c
* PURPOSE: Application for testing the CRT API's (wcstombs and wctomb) and the Win32 API WideCharToMultiByte for the Unicode to MultiByte string conversion
* COPYRIGHT: Copyright 2008 Colin Finck <colin@reactos.org>
*/
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <errno.h>
/* Macros for simplification */
#define SETLOCALE(locale) \
loc = setlocale(LC_ALL, locale); \
if(!loc) \
{ \
puts("setlocale failed for " locale ", this locale is probably not installed on your system"); \
return; \
}
#define OK(condition, fail_message, ...) \
if(!(condition)) \
printf("%d: " fail_message "\n", __LINE__, ##__VA_ARGS__);
/* Global variables for easier handling */
char mbc;
char mbs[5];
int ret;
wchar_t wc1 = 228; /* Western Windows-1252 character */
wchar_t wc2 = 1088; /* Russian Windows-1251 character not displayable for Windows-1252 */
wchar_t wcs[5] = {'T', 'h', 1088, 'i', 0}; /* String with ASCII characters and a Russian character */
wchar_t dbwcs[3] = {28953, 25152, 0}; /* String with Chinese (codepage 950) characters */
void CRT_Tests()
{
char* loc;
puts("CRT-Tests");
puts("---------");
/* Current locale is "C", wcstombs should return the length of the input buffer without the terminating null character */
ret = wcstombs(NULL, dbwcs, 0);
OK(ret == 2, "ret is %d", ret);
ret = wcstombs(mbs, dbwcs, ret);
OK(ret == -1, "ret is %d", ret);
OK(mbs[0] == 0, "mbs[0] is %d", mbs[0]);
OK(errno == EILSEQ, "errno is %d", errno);
ret = wcstombs(NULL, wcs, 0);
OK(ret == 4, "ret is %d", ret);
ret = wcstombs(mbs, wcs, ret);
OK(ret == -1, "ret is %d", ret);
OK(!strcmp(mbs, "Th"), "mbs is %s", mbs);
OK(errno == EILSEQ, "errno is %d", errno);
ret = wctomb(&mbc, wcs[0]);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 84, "mbc is %d", mbc);
mbc = 84;
ret = wcstombs(&mbc, &dbwcs[0], 1);
OK(ret == -1, "ret is %d", ret);
OK(mbc == 84, "mbc is %d", mbc);
ret = wcstombs(mbs, wcs, 0);
OK(ret == 0, "ret is %d", ret);
/* 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 */
ret = wctomb(NULL, 0);
OK(ret == 0, "ret is %d", ret);
ret = wctomb(&mbc, 0);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 0, "mbc is %d", mbc);
/* msvcr80.dll and later versions of CRT change mbc in the following call back to 0, msvcrt.dll from WinXP SP2 leaves it untouched */
mbc = 84;
ret = wctomb(&mbc, dbwcs[0]);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
OK(mbc == 84, "mbc is %d", mbc);
/* With a real locale, -1 also becomes a possible return value in case of an invalid character */
SETLOCALE("German");
ret = wcstombs(NULL, dbwcs, 0);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
ret = wcstombs(NULL, wcs, 2);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
/* Test if explicitly setting the locale back to "C" also leads to the same results as above */
SETLOCALE("C");
ret = wcstombs(NULL, dbwcs, 0);
OK(ret == 2, "ret is %d", ret);
ret = wcstombs(NULL, wcs, 0);
OK(ret == 4, "ret is %d", ret);
/* Test wctomb() as well */
SETLOCALE("English");
ret = wctomb(&mbc, wc1);
OK(ret == 1, "ret is %d", ret);
OK(mbc == -28, "mbc is %d", mbc);
ret = wctomb(&mbc, wc2);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
OK(mbc == 63, "mbc is %d", mbc);
SETLOCALE("Russian");
ret = wcstombs(mbs, wcs, sizeof(mbs));
OK(ret == 4, "ret is %d", ret);
OK(!strcmp(mbs, "Th<EFBFBD>i"), "mbs is %s", mbs);
ret = wctomb(&mbc, wc2);
OK(ret == 1, "ret is %d", ret);
OK(mbc == -16, "mbc is %d", mbc);
ret = wctomb(&mbc, wc1);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 97, "mbc is %d", mbc);
SETLOCALE("English");
ret = wcstombs(&mbc, wcs, 1);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 84, "mbc is %d", mbc);
ZeroMemory(mbs, sizeof(mbs));
ret = wcstombs(mbs, wcs, sizeof(mbs));
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
mbs[0] = 0;
/* wcstombs mustn't add any null character automatically.
So in this case, we should get the same string again, even if we only copied the first three bytes. */
ret = wcstombs(mbs, wcs, 3);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
ZeroMemory(mbs, 5);
/* Now this shouldn't be the case like above as we zeroed the complete string buffer. */
ret = wcstombs(mbs, wcs, 3);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
OK(!strcmp(mbs, "Th?"), "mbs is %s", mbs);
/* Double-byte tests */
SETLOCALE("Chinese");
ret = wcstombs(mbs, dbwcs, sizeof(mbs));
OK(ret == 4, "ret is %d", ret);
OK(!strcmp(mbs, "<EFBFBD>H<EFBFBD><EFBFBD>"), "mbs is %s", mbs);
ZeroMemory(mbs, 5);
/* Length-only tests */
SETLOCALE("English");
ret = wcstombs(NULL, wcs, 0);
OK(ret == -1, "ret is %d", ret);
OK(errno == EILSEQ, "errno is %d", errno);
SETLOCALE("Chinese");
ret = wcstombs(NULL, dbwcs, 0);
OK(ret == 4, "ret is %d", ret);
/* This call causes an ERROR_INSUFFICIENT_BUFFER in the called WideCharToMultiByte function.
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().
This could also be seen as an indication that Windows uses WideCharToMultiByte internally for wcstombs. */
ret = wcstombs(mbs, dbwcs, 1);
OK(ret == 0, "ret is %d", ret);
OK(mbs[0] == 0, "mbs[0] is %d", mbs[0]);
/* ERROR_INSUFFICIENT_BUFFER is also the result of this call with SBCS characters. WTF?!
Anyway this is a Win32 error not related to the CRT, so we leave out this criteria. */
ret = wcstombs(mbs, wcs, 1);
OK(ret == 1, "ret is %d", ret);
OK(mbs[0] == 84, "mbs[0] is %d", mbs[0]);
putchar('\n');
}
void Win32_Tests(LPBOOL bUsedDefaultChar)
{
SetLastError(0xdeadbeef);
puts("Win32-Tests");
puts("-----------");
ret = WideCharToMultiByte(1252, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == -28, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(1252, 0, &wc2, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 63, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(1251, 0, &wc2, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == -16, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(1251, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 97, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* The behaviour for this character is different when WC_NO_BEST_FIT_CHARS is used */
ret = WideCharToMultiByte(1251, WC_NO_BEST_FIT_CHARS, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 63, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(1252, 0, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 3, "ret is %d", ret);
OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ZeroMemory(mbs, 5);
ret = WideCharToMultiByte(1252, WC_NO_BEST_FIT_CHARS, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 3, "ret is %d", ret);
OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* This call triggers the last Win32 error */
ret = WideCharToMultiByte(1252, 0, wcs, -1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 0, "ret is %d", ret);
OK(mbc == 84, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "GetLastError() is %lu", GetLastError());
SetLastError(0xdeadbeef);
ret = WideCharToMultiByte(1252, 0, wcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 5, "ret is %d", ret);
OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
mbs[0] = 0;
/* WideCharToMultiByte mustn't add any null character automatically.
So in this case, we should get the same string again, even if we only copied the first three bytes. */
ret = WideCharToMultiByte(1252, 0, wcs, 3, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 3, "ret is %d", ret);
OK(!strcmp(mbs, "Th?i"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ZeroMemory(mbs, 5);
/* Now this shouldn't be the case like above as we zeroed the complete string buffer. */
ret = WideCharToMultiByte(1252, 0, wcs, 3, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 3, "ret is %d", ret);
OK(!strcmp(mbs, "Th?"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* Chinese codepage tests
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.
But as it isn't documented whether all other variables are undefined if ERROR_INSUFFICIENT_BUFFER is set, we skip this behaviour. */
ret = WideCharToMultiByte(950, WC_NO_BEST_FIT_CHARS, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 63, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(950, 0, &wc1, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
OK(mbc == 97, "mbc is %d", mbc);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* Double-byte tests */
ret = WideCharToMultiByte(950, 0, dbwcs, -1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 5, "ret is %d", ret);
OK(!strcmp(mbs, "<EFBFBD>H<EFBFBD><EFBFBD>"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(950, 0, dbwcs, 1, &mbc, 1, NULL, bUsedDefaultChar);
OK(ret == 0, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "GetLastError() is %lu", GetLastError());
SetLastError(0xdeadbeef);
ZeroMemory(mbs, 5);
ret = WideCharToMultiByte(950, 0, dbwcs, 1, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 2, "ret is %d", ret);
OK(!strcmp(mbs, "<EFBFBD>H"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* Length-only tests */
ret = WideCharToMultiByte(1252, 0, &wc2, 1, NULL, 0, NULL, bUsedDefaultChar);
OK(ret == 1, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(1252, 0, wcs, -1, NULL, 0, NULL, bUsedDefaultChar);
OK(ret == 5, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(950, 0, dbwcs, 1, NULL, 0, NULL, bUsedDefaultChar);
OK(ret == 2, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
ret = WideCharToMultiByte(950, 0, dbwcs, -1, NULL, 0, NULL, bUsedDefaultChar);
OK(ret == 5, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == 0xdeadbeef, "GetLastError() is %lu", GetLastError());
/* Abnormal uses of WideCharToMultiByte */
ret = WideCharToMultiByte(1252, 0, NULL, 5, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 0, "ret is %d", ret);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == FALSE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
SetLastError(0xdeadbeef);
ret = WideCharToMultiByte(0, 0, dbwcs, 5, mbs, sizeof(mbs), NULL, bUsedDefaultChar);
OK(ret == 5, "ret is %d", ret);
OK(!strcmp(mbs, "??"), "mbs is %s", mbs);
if(bUsedDefaultChar) OK(*bUsedDefaultChar == TRUE, "bUsedDefaultChar is %d", *bUsedDefaultChar);
ret = WideCharToMultiByte(1252, 0, wcs, -1, (LPSTR)wcs, 5, NULL, bUsedDefaultChar);
OK(ret == 0, "ret is %d", ret);
OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
SetLastError(0xdeadbeef);
ret = WideCharToMultiByte(1252, 0, wcs, -1, mbs, -1, NULL, bUsedDefaultChar);
OK(ret == 0, "ret is %d", ret);
OK(GetLastError() == ERROR_INVALID_PARAMETER, "GetLastError() is %lu", GetLastError());
SetLastError(0xdeadbeef);
putchar('\n');
}
int main()
{
BOOL UsedDefaultChar;
CRT_Tests();
/* There are two code pathes in WideCharToMultiByte, one when Flags || DefaultChar || UsedDefaultChar is set and one when it's not.
Test both here. */
Win32_Tests(NULL);
Win32_Tests(&UsedDefaultChar);
return 0;
}
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