dlls/kernel32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 const WCHAR foobarW[] = {'f','o','o','b','a','r',0};
  29
  30 static void test_destination_buffer(void)
  31 {
  32     LPSTR   buffer;
  33     INT     maxsize;
  34     INT     needed;
  35     INT     len;
  36
  37     SetLastError(0xdeadbeef);
  38     needed = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, NULL, 0, NULL, NULL);
  39     ok( (needed > 0), "returned %d with %u (expected '> 0')\n",
  40         needed, GetLastError());
  41
  42     maxsize = needed*2;
  43     buffer = HeapAlloc(GetProcessHeap(), 0, maxsize);
  44     if (buffer == NULL) return;
  45
  46     maxsize--;
  47     memset(buffer, 'x', maxsize);
  48     buffer[maxsize] = '\0';
  49     SetLastError(0xdeadbeef);
  50     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed+1, NULL, NULL);
  51     ok( (len > 0), "returned %d with %u and '%s' (expected '> 0')\n",
  52         len, GetLastError(), buffer);
  53
  54     memset(buffer, 'x', maxsize);
  55     buffer[maxsize] = '\0';
  56     SetLastError(0xdeadbeef);
  57     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed, NULL, NULL);
  58     ok( (len > 0), "returned %d with %u and '%s' (expected '> 0')\n",
  59         len, GetLastError(), buffer);
  60
  61     memset(buffer, 'x', maxsize);
  62     buffer[maxsize] = '\0';
  63     SetLastError(0xdeadbeef);
  64     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed-1, NULL, NULL);
  65     ok( !len && (GetLastError() == ERROR_INSUFFICIENT_BUFFER),
  66         "returned %d with %u and '%s' (expected '0' with "
  67         "ERROR_INSUFFICIENT_BUFFER)\n", len, GetLastError(), buffer);
  68
  69     memset(buffer, 'x', maxsize);
  70     buffer[maxsize] = '\0';
  71     SetLastError(0xdeadbeef);
  72     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, 1, NULL, NULL);
  73     ok( !len && (GetLastError() == ERROR_INSUFFICIENT_BUFFER),
  74         "returned %d with %u and '%s' (expected '0' with "
  75         "ERROR_INSUFFICIENT_BUFFER)\n", len, GetLastError(), buffer);
  76
  77     SetLastError(0xdeadbeef);
  78     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, 0, NULL, NULL);
  79     ok( (len > 0), "returned %d with %u (expected '> 0')\n",
  80         len, GetLastError());
  81
  82     SetLastError(0xdeadbeef);
  83     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, NULL, needed, NULL, NULL);
  84     ok( !len && (GetLastError() == ERROR_INVALID_PARAMETER),
  85         "returned %d with %u (expected '0' with "
  86         "ERROR_INVALID_PARAMETER)\n", len, GetLastError());
  87
  88     HeapFree(GetProcessHeap(), 0, buffer);
  89 }
  90
  91
  92 static void test_null_source(void)
  93 {
  94     int len;
  95     DWORD GLE;
  96
  97     SetLastError(0);
  98     len = WideCharToMultiByte(CP_ACP, 0, NULL, 0, NULL, 0, NULL, NULL);
  99     GLE = GetLastError();
 100     ok(!len && GLE == ERROR_INVALID_PARAMETER,
 101         "WideCharToMultiByte returned %d with GLE=%u (expected 0 with ERROR_INVALID_PARAMETER)\n",
 102         len, GLE);
 103
 104     SetLastError(0);
 105     len = WideCharToMultiByte(CP_ACP, 0, NULL, -1, NULL, 0, NULL, NULL);
 106     GLE = GetLastError();
 107     ok(!len && GLE == ERROR_INVALID_PARAMETER,
 108         "WideCharToMultiByte returned %d with GLE=%u (expected 0 with ERROR_INVALID_PARAMETER)\n",
 109         len, GLE);
 110 }
 111
 112 /* lstrcmpW is not supported on Win9x! */
 113 static int mylstrcmpW(const WCHAR* str1, const WCHAR* str2)
 114 {
 115     while (*str1 && *str1==*str2) {
 116         str1++;
 117         str2++;
 118     }
 119     return *str1-*str2;
 120 }
 121
 122 static void test_negative_source_length(void)
 123 {
 124     int len;
 125     char buf[10];
 126     WCHAR bufW[10];
 127
 128     /* Test, whether any negative source length works as strlen() + 1 */
 129     SetLastError( 0xdeadbeef );
 130     memset(buf,'x',sizeof(buf));
 131     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -2002, buf, 10, NULL, NULL);
 132     ok(len == 7 && !lstrcmpA(buf, "foobar") && GetLastError() == 0xdeadbeef,
 133        "WideCharToMultiByte(-2002): len=%d error=%u\n", len, GetLastError());
 134
 135     SetLastError( 0xdeadbeef );
 136     memset(bufW,'x',sizeof(bufW));
 137     len = MultiByteToWideChar(CP_ACP, 0, "foobar", -2002, bufW, 10);
 138     ok(len == 7 && !mylstrcmpW(bufW, foobarW) && GetLastError() == 0xdeadbeef,
 139        "MultiByteToWideChar(-2002): len=%d error=%u\n", len, GetLastError());
 140
 141     SetLastError(0xdeadbeef);
 142     memset(bufW, 'x', sizeof(bufW));
 143     len = MultiByteToWideChar(CP_ACP, 0, "foobar", -1, bufW, 6);
 144     ok(len == 0 && GetLastError() == ERROR_INSUFFICIENT_BUFFER,
 145        "MultiByteToWideChar(-1): len=%d error=%u\n", len, GetLastError());
 146 }
 147
 148 static void test_overlapped_buffers(void)
 149 {
 150     static const WCHAR strW[] = {'j','u','s','t',' ','a',' ','t','e','s','t',0};
 151     static const char strA[] = "just a test";
 152     char buf[256];
 153     int ret;
 154
 155     memcpy((WCHAR *)(buf + 1), strW, sizeof(strW));
 156     ret = WideCharToMultiByte(CP_ACP, 0, (WCHAR *)(buf + 1), -1, buf, sizeof(buf), NULL, NULL);
 157     ok(ret == sizeof(strA), "unexpected ret %d\n", ret);
 158     ok(!memcmp(buf, strA, sizeof(strA)), "conversion failed: %s\n", buf);
 159 }
 160
 161 START_TEST(codepage)
 162 {
 163     test_destination_buffer();
 164     test_null_source();
 165     test_negative_source_length();
 166     test_overlapped_buffers();
 167 }