https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3cb0bdaa0bd427cba21a8288ad0a4d37b2743037

commit 3cb0bdaa0bd427cba21a8288ad0a4d37b2743037
Author:     Bișoc George <[email protected]>
AuthorDate: Fri May 1 16:01:11 2020 +0200
Commit:     GitHub <[email protected]>
CommitDate: Fri May 1 16:01:11 2020 +0200

    [CRT_APITEST] Implement wctomb() testcase (#2701)
---
 .../rostests/apitests/crt/crtdll_crt_apitest.cmake |  2 +-
 .../rostests/apitests/crt/msvcrt_crt_apitest.cmake |  2 +-
 .../rostests/apitests/crt/ntdll_crt_apitest.cmake  |  1 +
 modules/rostests/apitests/crt/testlist.c           |  2 +
 modules/rostests/apitests/crt/wctomb.c             | 67 ++++++++++++++++++++++
 5 files changed, 72 insertions(+), 2 deletions(-)

diff --git a/modules/rostests/apitests/crt/crtdll_crt_apitest.cmake 
b/modules/rostests/apitests/crt/crtdll_crt_apitest.cmake
index 768168681e8..f40c603c480 100644
--- a/modules/rostests/apitests/crt/crtdll_crt_apitest.cmake
+++ b/modules/rostests/apitests/crt/crtdll_crt_apitest.cmake
@@ -519,7 +519,7 @@ list(APPEND SOURCE_CRTDLL
     wcstombs.c
     wcstoul.c
 #    wcsxfrm.c
-#    wctomb.c
+    wctomb.c
 #    wprintf.c
 #    wscanf.c
 )
diff --git a/modules/rostests/apitests/crt/msvcrt_crt_apitest.cmake 
b/modules/rostests/apitests/crt/msvcrt_crt_apitest.cmake
index 2e3aaf9f3fc..e53d3b4f6fc 100644
--- a/modules/rostests/apitests/crt/msvcrt_crt_apitest.cmake
+++ b/modules/rostests/apitests/crt/msvcrt_crt_apitest.cmake
@@ -1255,7 +1255,7 @@ list(APPEND SOURCE_MSVCRT
     wcstoul.c
 #    wcsxfrm.c
 #    wctob
-#    wctomb.c
+    wctomb.c
 #    wctomb_s
 #    wprintf.c
 #    wprintf_s.c
diff --git a/modules/rostests/apitests/crt/ntdll_crt_apitest.cmake 
b/modules/rostests/apitests/crt/ntdll_crt_apitest.cmake
index 41322e1c338..7f923043068 100644
--- a/modules/rostests/apitests/crt/ntdll_crt_apitest.cmake
+++ b/modules/rostests/apitests/crt/ntdll_crt_apitest.cmake
@@ -123,6 +123,7 @@ list(APPEND SOURCE_NTDLL
 #    wcstol.c
     wcstombs.c
     wcstoul.c
+    wctomb.c
 )
 
 if(ARCH STREQUAL "i386")
diff --git a/modules/rostests/apitests/crt/testlist.c 
b/modules/rostests/apitests/crt/testlist.c
index 3afeb450484..20587372301 100644
--- a/modules/rostests/apitests/crt/testlist.c
+++ b/modules/rostests/apitests/crt/testlist.c
@@ -26,6 +26,7 @@ extern void func_strtoul(void);
 extern void func_wcsnlen(void);
 extern void func_wcstombs(void);
 extern void func_wcstoul(void);
+extern void func_wctomb(void);
 extern void func___getmainargs(void);
 
 extern void func_static_construct(void);
@@ -44,6 +45,7 @@ const struct test winetest_testlist[] =
     { "strlen", func_strlen },
     { "strtoul", func_strtoul },
     { "wcstoul", func_wcstoul },
+    { "wctomb", func_wctomb },
     { "wcstombs", func_wcstombs },
 #if defined(TEST_CRTDLL) || defined(TEST_MSVCRT) || defined(TEST_STATIC_CRT)
     // ...
diff --git a/modules/rostests/apitests/crt/wctomb.c 
b/modules/rostests/apitests/crt/wctomb.c
new file mode 100644
index 00000000000..b72d6156329
--- /dev/null
+++ b/modules/rostests/apitests/crt/wctomb.c
@@ -0,0 +1,67 @@
+/*
+ * PROJECT:         ReactOS API tests
+ * LICENSE:         GPL-2.0-or-later 
(https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE:         Tests for wctomb
+ * COPYRIGHT:       Copyright 2020 Bișoc George <[email protected]>
+ */
+
+#include <apitest.h>
+#include <apitest_guard.h>
+
+#define WIN32_NO_STATUS
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <locale.h>
+
+unsigned int cdecl ___lc_codepage_func(void);
+
+START_TEST(wctomb)
+{
+    int Length;
+    char *chDest;
+    char *loc;
+    unsigned int codepage = ___lc_codepage_func();
+    wchar_t wchSrc[2] = {L'R', 0414}; // 0414 corresponds to a Russian 
character in Windows-1251
+
+    chDest = AllocateGuarded(sizeof(*chDest));
+    if (!chDest)
+    {
+        skip("Buffer allocation failed!\n");
+        return;
+    }
+
+    /* Output the current locale of the system and codepage for comparison 
between ReactOS and Windows */
+    loc = setlocale(LC_ALL, NULL);
+    printf("The current codepage of your system tested is (%u) and locale 
(%s).\n\n", codepage, loc);
+
+    /* Do not give output to the caller */
+    Length = wctomb(NULL, 0);
+    ok(Length == 0, "Expected no characters to be converted (because the 
output argument is refused) but got %d\n.", Length);
+
+    /* Do the same but expect a valid wide character argument this time */
+    Length = wctomb(NULL, wchSrc[0]);
+    ok(Length == 0, "Expected no characters to be converted (because the 
output argument is refused) but got %d\n.", Length);
+
+    /* Don't return anything to the output even if conversion is impossible */
+    Length = wctomb(NULL, wchSrc[1]);
+    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);
+    ok(Length == 0, "Expected no characters to be converted (because the 
output argument is refused) but got %d\n.", Length);
+
+    /* Attempt to convert a character not possible in current locale */
+    Length = wctomb(chDest, wchSrc[1]);
+    ok(Length == -1, "The conversion is not possible in current locale but got 
%d as returned value.\n", Length);
+    ok(errno == EILSEQ, "EILSEQ is expected in an illegal sequence conversion 
but got %d.\n", errno);
+
+    /* Return a null wide character to the destination argument */
+    Length = wctomb(chDest, 0);
+    ok(Length == 1, "Expected one character to be converted (the null 
character) but got %d.\n", Length);
+    ok_int(chDest[0], '\0');
+
+    /* Get the converted output and validate what we should get */
+    Length = wctomb(chDest, wchSrc[0]);
+    ok(Length == 1, "Expected one character to be converted but got %d.\n", 
Length);
+    ok_int(chDest[0], 'R');
+
+    FreeGuarded(chDest);
+}

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