ReactOS  0.4.15-dev-2344-g8ddbfde
wctomb.c
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1 /*
2  * PROJECT: ReactOS API tests
3  * LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
4  * PURPOSE: Tests for wctomb
5  * COPYRIGHT: Copyright 2020 George BiČ™oc <george.bisoc@reactos.org>
6  */
7 
8 #include <apitest.h>
9 #include <apitest_guard.h>
10 
11 #define WIN32_NO_STATUS
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <errno.h>
15 #include <locale.h>
16 
17 unsigned int cdecl ___lc_codepage_func(void);
18 
20 {
21  int Length;
22  char *chDest;
23  char *loc;
24  unsigned int codepage = ___lc_codepage_func();
25  wchar_t wchSrc[2] = {L'R', 0414}; // 0414 corresponds to a Russian character in Windows-1251
26 
27  chDest = AllocateGuarded(sizeof(*chDest));
28  if (!chDest)
29  {
30  skip("Buffer allocation failed!\n");
31  return;
32  }
33 
34  /* Output the current locale of the system and codepage for comparison between ReactOS and Windows */
35  loc = setlocale(LC_ALL, NULL);
36  printf("The current codepage of your system tested is (%u) and locale (%s).\n\n", codepage, loc);
37 
38  /* Do not give output to the caller */
39  Length = wctomb(NULL, 0);
40  ok(Length == 0, "Expected no characters to be converted (because the output argument is refused) but got %d\n.", Length);
41 
42  /* Do the same but expect a valid wide character argument this time */
43  Length = wctomb(NULL, wchSrc[0]);
44  ok(Length == 0, "Expected no characters to be converted (because the output argument is refused) but got %d\n.", Length);
45 
46  /* Don't return anything to the output even if conversion is impossible */
47  Length = wctomb(NULL, wchSrc[1]);
48  ok(errno == 0, "The error number (errno) should be 0 even though an invalid character in current locale is given but got %d.\n", errno);
49  ok(Length == 0, "Expected no characters to be converted (because the output argument is refused) but got %d\n.", Length);
50 
51  /* Attempt to convert a character not possible in current locale */
52  Length = wctomb(chDest, wchSrc[1]);
53  ok(Length == -1, "The conversion is not possible in current locale but got %d as returned value.\n", Length);
54  ok(errno == EILSEQ, "EILSEQ is expected in an illegal sequence conversion but got %d.\n", errno);
55 
56  /* Return a null wide character to the destination argument */
57  Length = wctomb(chDest, 0);
58  ok(Length == 1, "Expected one character to be converted (the null character) but got %d.\n", Length);
59  ok_int(chDest[0], '\0');
60 
61  /* Get the converted output and validate what we should get */
62  Length = wctomb(chDest, wchSrc[0]);
63  ok(Length == 1, "Expected one character to be converted but got %d.\n", Length);
64  ok_int(chDest[0], 'R');
65 
66  FreeGuarded(chDest);
67 }
#define wctomb(cp, wc)
Definition: wchar.h:161
#define EILSEQ
Definition: errno.h:97
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:101
int errno
static VOID FreeGuarded(_In_ PVOID Pointer)
Definition: apitest_guard.h:45
#define cdecl
Definition: windef.h:118
static PVOID AllocateGuarded(_In_ SIZE_T SizeRequested)
Definition: apitest_guard.h:10
unsigned int cdecl ___lc_codepage_func(void)
Definition: locale.c:627
int codepage
Definition: win_iconv.c:156
#define ok_int(expression, result)
Definition: atltest.h:134
#define LC_ALL
Definition: locale.h:25
START_TEST(wctomb)
Definition: wctomb.c:19
static const WCHAR L[]
Definition: oid.c:1250
#define ok(value,...)
Definition: atltest.h:57
#define NULL
Definition: types.h:112
#define skip(...)
Definition: atltest.h:64
#define setlocale(n, s)
Definition: locale.h:46
#define printf
Definition: config.h:203