reactos/rostests/apitests/crt/_vsnprintf.c

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/*
* PROJECT: ReactOS api tests
* LICENSE: GPL - See COPYING in the top level directory
* PURPOSE: Test for _vsnprintf
*/
#include <apitest.h>
#define WIN32_NO_STATUS
#include <stdio.h>
#include <tchar.h>
#include <pseh/pseh2.h>
#include <ndk/mmfuncs.h>
#include <ndk/rtlfuncs.h>
static void call_varargs(char* buf, size_t buf_size, int expected_ret, LPCSTR formatString, ...)
{
va_list args;
int ret;
/* Test the basic functionality */
va_start(args, formatString);
ret = _vsnprintf(buf, 255, formatString, args);
ok(expected_ret == ret, "Test failed: expected %i, got %i.\n", expected_ret, ret);
}
START_TEST(_vsnprintf)
{
char buffer[255];
/* Here you can mix wide and ANSI strings */
call_varargs(buffer, 255, 12, "%S world!", L"hello");
call_varargs(buffer, 255, 12, "%s world!", "hello");
call_varargs(buffer, 255, 11, "%u cookies", 100);
/* This is how WINE implements _vcsprintf, and they are obviously wrong */
StartSeh()
call_varargs(NULL, INT_MAX, -1, "%s it really work?", "does");
#if defined(TEST_CRTDLL) || defined(TEST_USER32)
EndSeh(STATUS_ACCESS_VIOLATION);
#else
EndSeh(STATUS_SUCCESS);
#endif
#if defined(TEST_MSVCRT) /* NTDLL doesn't use/set errno */
ok(errno == EINVAL, "Expected EINVAL, got %u\n", errno);
#endif
/* This one is no better */
StartSeh()
call_varargs(NULL, 0, -1, "%s it really work?", "does");
#if defined(TEST_CRTDLL) || defined(TEST_USER32)
EndSeh(STATUS_ACCESS_VIOLATION);
#else
EndSeh(STATUS_SUCCESS);
#endif
#if defined(TEST_MSVCRT) /* NTDLL doesn't use/set errno */
ok(errno == EINVAL, "Expected EINVAL, got %u\n", errno);
#endif
/* One more NULL checks */
StartSeh()
call_varargs(buffer, 255, -1, NULL);
#if defined(TEST_CRTDLL)
EndSeh(STATUS_ACCESS_VIOLATION);
#else
EndSeh(STATUS_SUCCESS);
#endif
#if defined(TEST_MSVCRT) /* NTDLL doesn't use/set errno */
ok(errno == EINVAL, "Expected EINVAL, got %u\n", errno);
#endif
}