KERNEL/tests: test WideCharToMultiByte

[Saulius Krasuckas]

* On Wed, 17 Aug 2005, Alexandre Julliard wrote:
> * Saulius Krasuckas <saulius2 at ar.fi.lt> writes:
> > 
> >         Add a test for WideCharToMultiByte.
> 
> This should go in codepage.c.

Makes a lot of sense.  
As we are used to say here, not all blind men see in the daylight.


Log message:
        Saulius Krasuckas <saulius.krasuckas at ieee.org>
        Test passing NULL source to WideCharToMultiByte.


Index: dlls/kernel/tests/codepage.c
===================================================================
RCS file: /home/wine/wine/dlls/kernel/tests/codepage.c,v
retrieving revision 1.5
diff -p -u -r1.5 codepage.c
--- dlls/kernel/tests/codepage.c        15 Jul 2005 16:33:10 -0000      1.5
+++ dlls/kernel/tests/codepage.c        17 Aug 2005 22:10:38 -0000
@@ -25,6 +25,19 @@
 #include "winbase.h"
 #include "winnls.h"
 
+static void test_null_source(void)
+{
+    int len;
+    DWORD GLE;
+
+    SetLastError(0);
+    len = WideCharToMultiByte(CP_ACP, 0, NULL, 0, NULL, 0, NULL, NULL);
+    GLE = GetLastError();
+    ok(!len && GLE == ERROR_INVALID_PARAMETER,
+        "WideCharToMultiByte returned %d with GLE=%ld (expected 0 with ERROR_INVALID_PARAMETER)\n", 
+        len, GLE);
+}
+
 /* lstrcmpW is not supported on Win9x! */
 static int mylstrcmpW(const WCHAR* str1, const WCHAR* str2)
 {
@@ -71,6 +84,7 @@ static void test_overlapped_buffers(void
 
 START_TEST(codepage)
 {
+    test_null_source();
     test_negative_source_length();
     test_overlapped_buffers();
 }