Francois Gouget : vbscript/tests: Fix the testChrError() tests in the mixed locale case.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1d9de16091a048cf37485001bf9f9af9089edadb
URL:    https://gitlab.winehq.org/wine/wine/-/commit/1d9de16091a048cf37485001bf9f9af...

Author: Francois Gouget <fgouget(a)codeweavers.com>
Date:   Sun Mar 12 20:26:29 2023 +0100

vbscript/tests: Fix the testChrError() tests in the mixed locale case.

VBscript actually uses the default code page of the user default locale
which may not be the same as CP_THREAD_ACP.
Also for locales that don't have an ANSI code page, such as Hindi, it
falls back to UTF-8.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54003

---

 dlls/vbscript/tests/run.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/dlls/vbscript/tests/run.c b/dlls/vbscript/tests/run.c
index 294b635ea41..65459711061 100644
--- a/dlls/vbscript/tests/run.c
+++ b/dlls/vbscript/tests/run.c
@@ -231,6 +231,7 @@ static const char *vt2a(VARIANT *v)
  */
 static void detect_locale(void)
 {
+    UINT cp;
     CPINFOEXA cpinfo;
     HMODULE kernel32 = GetModuleHandleA("kernel32.dll");
     LANGID (WINAPI *pGetThreadUILanguage)(void) = (void*)GetProcAddress(kernel32, "GetThreadUILanguage");
@@ -239,8 +240,17 @@ static void detect_locale(void)
                   PRIMARYLANGID(GetUserDefaultUILanguage()) == LANG_ENGLISH &&
                   PRIMARYLANGID(GetUserDefaultLangID()) == LANG_ENGLISH);
 
-    GetCPInfoExA( CP_THREAD_ACP, 0, &cpinfo );
-    MaxCharSize = cpinfo.MaxCharSize;
+    GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER, (WCHAR*)&cp, sizeof(cp));
+    if (cp)
+    {
+        GetCPInfoExA( cp, 0, &cpinfo );
+        MaxCharSize = cpinfo.MaxCharSize;
+    }
+    else
+    {
+        /* No ANSI code page for that locale -> the fallback is UTF-8 */
+        MaxCharSize = 4;
+    }
 
     GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_IFIRSTDAYOFWEEK | LOCALE_RETURN_NUMBER,
                    (void*)&first_day_of_week, sizeof(first_day_of_week));