dlls/kernel/tests/codepage.c

   1 /*
   2  * Unit tests for code page to/from unicode translations
   3  *
   4  * Copyright (c) 2002 Dmitry Timoshkov
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #include "wine/test.h"
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnls.h"
  27
  28 static void test_null_source(void)
  29 {
  30     int len;
  31     DWORD GLE;
  32
  33     SetLastError(0);
  34     len = WideCharToMultiByte(CP_ACP, 0, NULL, 0, NULL, 0, NULL, NULL);
  35     GLE = GetLastError();
  36     ok(!len && GLE == ERROR_INVALID_PARAMETER,
  37         "WideCharToMultiByte returned %d with GLE=%ld (expected 0 with ERROR_INVALID_PARAMETER)\n",
  38         len, GLE);
  39 }
  40
  41 /* lstrcmpW is not supported on Win9x! */
  42 static int mylstrcmpW(const WCHAR* str1, const WCHAR* str2)
  43 {
  44     while (*str1 && *str1==*str2) {
  45         str1++;
  46         str2++;
  47     }
  48     return *str1-*str2;
  49 }
  50
  51 static void test_negative_source_length(void)
  52 {
  53     int len;
  54     char buf[10];
  55     WCHAR bufW[10];
  56     static const WCHAR foobarW[] = {'f','o','o','b','a','r',0};
  57
  58     /* Test, whether any negative source length works as strlen() + 1 */
  59     SetLastError( 0xdeadbeef );
  60     memset(buf,'x',sizeof(buf));
  61     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -2002, buf, 10, NULL, NULL);
  62     ok(len == 7 && !lstrcmpA(buf, "foobar") && GetLastError() == 0xdeadbeef,
  63        "WideCharToMultiByte(-2002): len=%d error=%ld\n",len,GetLastError());
  64
  65     SetLastError( 0xdeadbeef );
  66     memset(bufW,'x',sizeof(bufW));
  67     len = MultiByteToWideChar(CP_ACP, 0, "foobar", -2002, bufW, 10);
  68     ok(len == 7 && !mylstrcmpW(bufW, foobarW) && GetLastError() == 0xdeadbeef,
  69        "MultiByteToWideChar(-2002): len=%d error=%ld\n",len,GetLastError());
  70 }
  71
  72 static void test_overlapped_buffers(void)
  73 {
  74     static const WCHAR strW[] = {'j','u','s','t',' ','a',' ','t','e','s','t',0};
  75     static const char strA[] = "just a test";
  76     char buf[256];
  77     int ret;
  78
  79     lstrcpyW((WCHAR *)(buf + 1), strW);
  80     ret = WideCharToMultiByte(CP_ACP, 0, (WCHAR *)(buf + 1), -1, buf, sizeof(buf), NULL, NULL);
  81     ok(ret == sizeof(strA), "unexpected ret %d != %d\n", ret, sizeof(strA));
  82     ok(!memcmp(buf, strA, sizeof(strA)), "conversion failed: %s\n", buf);
  83 }
  84
  85 START_TEST(codepage)
  86 {
  87     test_null_source();
  88     test_negative_source_length();
  89     test_overlapped_buffers();
  90 }