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 #include <limits.h>
  23
  24 #include "wine/test.h"
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnls.h"
  28
  29 static const WCHAR foobarW[] = {'f','o','o','b','a','r',0};
  30
  31 static void test_destination_buffer(void)
  32 {
  33     LPSTR   buffer;
  34     INT     maxsize;
  35     INT     needed;
  36     INT     len;
  37
  38     SetLastError(0xdeadbeef);
  39     needed = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, NULL, 0, NULL, NULL);
  40     ok( (needed > 0), "returned %d with %u (expected '> 0')\n",
  41         needed, GetLastError());
  42
  43     maxsize = needed*2;
  44     buffer = HeapAlloc(GetProcessHeap(), 0, maxsize);
  45     if (buffer == NULL) return;
  46
  47     maxsize--;
  48     memset(buffer, 'x', maxsize);
  49     buffer[maxsize] = '\0';
  50     SetLastError(0xdeadbeef);
  51     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed+1, NULL, NULL);
  52     ok( (len > 0), "returned %d with %u and '%s' (expected '> 0')\n",
  53         len, GetLastError(), buffer);
  54
  55     memset(buffer, 'x', maxsize);
  56     buffer[maxsize] = '\0';
  57     SetLastError(0xdeadbeef);
  58     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed, NULL, NULL);
  59     ok( (len > 0), "returned %d with %u and '%s' (expected '> 0')\n",
  60         len, GetLastError(), buffer);
  61
  62     memset(buffer, 'x', maxsize);
  63     buffer[maxsize] = '\0';
  64     SetLastError(0xdeadbeef);
  65     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, needed-1, NULL, NULL);
  66     ok( !len && (GetLastError() == ERROR_INSUFFICIENT_BUFFER),
  67         "returned %d with %u and '%s' (expected '0' with "
  68         "ERROR_INSUFFICIENT_BUFFER)\n", len, GetLastError(), buffer);
  69
  70     memset(buffer, 'x', maxsize);
  71     buffer[maxsize] = '\0';
  72     SetLastError(0xdeadbeef);
  73     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, 1, NULL, NULL);
  74     ok( !len && (GetLastError() == ERROR_INSUFFICIENT_BUFFER),
  75         "returned %d with %u and '%s' (expected '0' with "
  76         "ERROR_INSUFFICIENT_BUFFER)\n", len, GetLastError(), buffer);
  77
  78     SetLastError(0xdeadbeef);
  79     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buffer, 0, NULL, NULL);
  80     ok( (len > 0), "returned %d with %u (expected '> 0')\n",
  81         len, GetLastError());
  82
  83     SetLastError(0xdeadbeef);
  84     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, NULL, needed, NULL, NULL);
  85     ok( !len && (GetLastError() == ERROR_INVALID_PARAMETER),
  86         "returned %d with %u (expected '0' with "
  87         "ERROR_INVALID_PARAMETER)\n", len, GetLastError());
  88
  89     HeapFree(GetProcessHeap(), 0, buffer);
  90 }
  91
  92
  93 static void test_null_source(void)
  94 {
  95     int len;
  96     DWORD GLE;
  97
  98     SetLastError(0);
  99     len = WideCharToMultiByte(CP_ACP, 0, NULL, 0, NULL, 0, NULL, NULL);
 100     GLE = GetLastError();
 101     ok(!len && GLE == ERROR_INVALID_PARAMETER,
 102         "WideCharToMultiByte returned %d with GLE=%u (expected 0 with ERROR_INVALID_PARAMETER)\n",
 103         len, GLE);
 104
 105     SetLastError(0);
 106     len = WideCharToMultiByte(CP_ACP, 0, NULL, -1, NULL, 0, NULL, NULL);
 107     GLE = GetLastError();
 108     ok(!len && GLE == ERROR_INVALID_PARAMETER,
 109         "WideCharToMultiByte returned %d with GLE=%u (expected 0 with ERROR_INVALID_PARAMETER)\n",
 110         len, GLE);
 111 }
 112
 113 /* lstrcmpW is not supported on Win9x! */
 114 static int mylstrcmpW(const WCHAR* str1, const WCHAR* str2)
 115 {
 116     while (*str1 && *str1==*str2) {
 117         str1++;
 118         str2++;
 119     }
 120     return *str1-*str2;
 121 }
 122
 123 static void test_negative_source_length(void)
 124 {
 125     int len;
 126     char buf[10];
 127     WCHAR bufW[10];
 128
 129     /* Test, whether any negative source length works as strlen() + 1 */
 130     SetLastError( 0xdeadbeef );
 131     memset(buf,'x',sizeof(buf));
 132     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -2002, buf, 10, NULL, NULL);
 133     ok(len == 7 && !lstrcmpA(buf, "foobar") && GetLastError() == 0xdeadbeef,
 134        "WideCharToMultiByte(-2002): len=%d error=%u\n", len, GetLastError());
 135
 136     SetLastError( 0xdeadbeef );
 137     memset(bufW,'x',sizeof(bufW));
 138     len = MultiByteToWideChar(CP_ACP, 0, "foobar", -2002, bufW, 10);
 139     ok(len == 7 && !mylstrcmpW(bufW, foobarW) && GetLastError() == 0xdeadbeef,
 140        "MultiByteToWideChar(-2002): len=%d error=%u\n", len, GetLastError());
 141
 142     SetLastError(0xdeadbeef);
 143     memset(bufW, 'x', sizeof(bufW));
 144     len = MultiByteToWideChar(CP_ACP, 0, "foobar", -1, bufW, 6);
 145     ok(len == 0 && GetLastError() == ERROR_INSUFFICIENT_BUFFER,
 146        "MultiByteToWideChar(-1): len=%d error=%u\n", len, GetLastError());
 147 }
 148
 149 #define LONGBUFLEN 100000
 150 static void test_negative_dest_length(void)
 151 {
 152     int len, i;
 153     static char buf[LONGBUFLEN];
 154     static WCHAR originalW[LONGBUFLEN];
 155     static char originalA[LONGBUFLEN];
 156     DWORD theError;
 157
 158     /* Test return on -1 dest length */
 159     SetLastError( 0xdeadbeef );
 160     memset(buf,'x',sizeof(buf));
 161     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buf, -1, NULL, NULL);
 162     todo_wine {
 163       ok(len == 0 && GetLastError() == ERROR_INVALID_PARAMETER,
 164          "WideCharToMultiByte(destlen -1): len=%d error=%x\n", len, GetLastError());
 165     }
 166
 167     /* Test return on -1000 dest length */
 168     SetLastError( 0xdeadbeef );
 169     memset(buf,'x',sizeof(buf));
 170     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buf, -1000, NULL, NULL);
 171     todo_wine {
 172       ok(len == 0 && GetLastError() == ERROR_INVALID_PARAMETER,
 173          "WideCharToMultiByte(destlen -1000): len=%d error=%x\n", len, GetLastError());
 174     }
 175
 176     /* Test return on INT_MAX dest length */
 177     SetLastError( 0xdeadbeef );
 178     memset(buf,'x',sizeof(buf));
 179     len = WideCharToMultiByte(CP_ACP, 0, foobarW, -1, buf, INT_MAX, NULL, NULL);
 180     ok(len == 7 && !lstrcmpA(buf, "foobar") && GetLastError() == 0xdeadbeef,
 181        "WideCharToMultiByte(destlen INT_MAX): len=%d error=%x\n", len, GetLastError());
 182
 183     /* Test return on INT_MAX dest length and very long input */
 184     SetLastError( 0xdeadbeef );
 185     memset(buf,'x',sizeof(buf));
 186     for (i=0; i < LONGBUFLEN - 1; i++) {
 187         originalW[i] = 'Q';
 188         originalA[i] = 'Q';
 189     }
 190     originalW[LONGBUFLEN-1] = 0;
 191     originalA[LONGBUFLEN-1] = 0;
 192     len = WideCharToMultiByte(CP_ACP, 0, originalW, -1, buf, INT_MAX, NULL, NULL);
 193     theError = GetLastError();
 194     ok(len == LONGBUFLEN && !lstrcmpA(buf, originalA) && theError == 0xdeadbeef,
 195        "WideCharToMultiByte(srclen %d, destlen INT_MAX): len %d error=%x\n", LONGBUFLEN, len, theError);
 196
 197 }
 198
 199 static void test_overlapped_buffers(void)
 200 {
 201     static const WCHAR strW[] = {'j','u','s','t',' ','a',' ','t','e','s','t',0};
 202     static const char strA[] = "just a test";
 203     char buf[256];
 204     int ret;
 205
 206     memcpy((WCHAR *)(buf + 1), strW, sizeof(strW));
 207     ret = WideCharToMultiByte(CP_ACP, 0, (WCHAR *)(buf + 1), -1, buf, sizeof(buf), NULL, NULL);
 208     ok(ret == sizeof(strA), "unexpected ret %d\n", ret);
 209     ok(!memcmp(buf, strA, sizeof(strA)), "conversion failed: %s\n", buf);
 210 }
 211
 212 START_TEST(codepage)
 213 {
 214     test_destination_buffer();
 215     test_null_source();
 216     test_negative_source_length();
 217     test_negative_dest_length();
 218     test_overlapped_buffers();
 219 }