dlls/kernel/tests/environ.c

   1 /*
   2  * Unit test suite for environment functions.
   3  *
   4  * Copyright 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 "winerror.h"
  27
  28 static void test_GetSetEnvironmentVariableA(void)
  29 {
  30     char buf[256];
  31     BOOL ret;
  32     DWORD ret_size;
  33     static const char name[] = "SomeWildName";
  34     static const char name_cased[] = "sOMEwILDnAME";
  35     static const char value[] = "SomeWildValue";
  36
  37     ret = SetEnvironmentVariableA(name, value);
  38     ok(ret == TRUE,
  39        "unexpected error in SetEnvironmentVariableA, GetLastError=%ld\n",
  40        GetLastError());
  41
  42     /* Try to retrieve the environment variable we just set */
  43     ret_size = GetEnvironmentVariableA(name, NULL, 0);
  44     ok(ret_size == strlen(value) + 1,
  45        "should return length with terminating 0 ret_size=%ld\n", ret_size);
  46
  47     lstrcpyA(buf, "foo");
  48     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value));
  49     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  50     ok(ret_size == strlen(value) + 1,
  51        "should return length with terminating 0 ret_size=%ld\n", ret_size);
  52
  53     lstrcpyA(buf, "foo");
  54     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  55     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  56     ok(ret_size == strlen(value),
  57        "should return length without terminating 0 ret_size=%ld\n", ret_size);
  58
  59     lstrcpyA(buf, "foo");
  60     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
  61     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  62     ok(ret_size == strlen(value),
  63        "should return length without terminating 0 ret_size=%ld\n", ret_size);
  64
  65     /* Remove that environment variable */
  66     ret = SetEnvironmentVariableA(name_cased, NULL);
  67     ok(ret == TRUE, "should erase existing variable\n");
  68
  69     lstrcpyA(buf, "foo");
  70     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  71     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  72     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
  73        "should not find variable but ret_size=%ld GetLastError=%ld\n",
  74        ret_size, GetLastError());
  75
  76     /* Check behavior of SetEnvironmentVariableA(name, "") */
  77     ret = SetEnvironmentVariableA(name, value);
  78     ok(ret == TRUE,
  79        "unexpected error in SetEnvironmentVariableA, GetLastError=%ld\n",
  80        GetLastError());
  81
  82     lstrcpyA(buf, "foo");
  83     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
  84     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  85     ok(ret_size == strlen(value),
  86        "should return length without terminating 0 ret_size=%ld\n", ret_size);
  87
  88     ret = SetEnvironmentVariableA(name_cased, "");
  89     ok(ret == TRUE,
  90        "should not fail with empty value but GetLastError=%ld\n", GetLastError());
  91
  92     lstrcpyA(buf, "foo");
  93     SetLastError(0);
  94     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  95     ok(ret_size == 0 &&
  96        ((GetLastError() == 0 && lstrcmpA(buf, "") == 0) ||
  97         (GetLastError() == ERROR_ENVVAR_NOT_FOUND)),
  98        "%s should be set to \"\" (NT) or removed (Win9x) but ret_size=%ld GetLastError=%ld and buf=%s\n",
  99        name, ret_size, GetLastError(), buf);
 100
 101     /* Test the limits */
 102     ret_size = GetEnvironmentVariableA(NULL, NULL, 0);
 103     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 104        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 105        ret_size, GetLastError());
 106
 107     ret_size = GetEnvironmentVariableA(NULL, buf, lstrlenA(value) + 1);
 108     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 109        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 110        ret_size, GetLastError());
 111
 112     ret_size = GetEnvironmentVariableA("", buf, lstrlenA(value) + 1);
 113     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 114        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 115        ret_size, GetLastError());
 116 }
 117
 118 static void test_GetSetEnvironmentVariableW(void)
 119 {
 120     WCHAR buf[256];
 121     BOOL ret;
 122     DWORD ret_size;
 123     static const WCHAR name[] = {'S','o','m','e','W','i','l','d','N','a','m','e',0};
 124     static const WCHAR value[] = {'S','o','m','e','W','i','l','d','V','a','l','u','e',0};
 125     static const WCHAR name_cased[] = {'s','O','M','E','w','I','L','D','n','A','M','E',0};
 126     static const WCHAR empty_strW[] = { 0 };
 127     static const WCHAR fooW[] = {'f','o','o',0};
 128
 129     ret = SetEnvironmentVariableW(name, value);
 130     if (ret == FALSE && GetLastError()==ERROR_CALL_NOT_IMPLEMENTED)
 131     {
 132         /* Must be Win9x which doesn't support the Unicode functions */
 133         return;
 134     }
 135     ok(ret == TRUE,
 136        "unexpected error in SetEnvironmentVariableW, GetLastError=%ld\n",
 137        GetLastError());
 138
 139     /* Try to retrieve the environment variable we just set */
 140     ret_size = GetEnvironmentVariableW(name, NULL, 0);
 141     ok(ret_size == lstrlenW(value) + 1,
 142        "should return length with terminating 0 ret_size=%ld\n",
 143        ret_size);
 144
 145     lstrcpyW(buf, fooW);
 146     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value));
 147     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 148
 149     ok(ret_size == lstrlenW(value) + 1,
 150        "should return length with terminating 0 ret_size=%ld\n", ret_size);
 151
 152     lstrcpyW(buf, fooW);
 153     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 154     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 155     ok(ret_size == lstrlenW(value),
 156        "should return length without terminating 0 ret_size=%ld\n", ret_size);
 157
 158     lstrcpyW(buf, fooW);
 159     ret_size = GetEnvironmentVariableW(name_cased, buf, lstrlenW(value) + 1);
 160     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 161     ok(ret_size == lstrlenW(value),
 162        "should return length without terminating 0 ret_size=%ld\n", ret_size);
 163
 164     /* Remove that environment variable */
 165     ret = SetEnvironmentVariableW(name_cased, NULL);
 166     ok(ret == TRUE, "should erase existing variable\n");
 167
 168     lstrcpyW(buf, fooW);
 169     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 170     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 171     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 172        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 173        ret_size, GetLastError());
 174
 175     /* Check behavior of SetEnvironmentVariableW(name, "") */
 176     ret = SetEnvironmentVariableW(name, value);
 177     ok(ret == TRUE,
 178        "unexpected error in SetEnvironmentVariableW, GetLastError=%ld\n",
 179        GetLastError());
 180
 181     lstrcpyW(buf, fooW);
 182     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 183     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 184     ok(ret_size == lstrlenW(value),
 185        "should return length without terminating 0 ret_size=%ld\n", ret_size);
 186
 187     ret = SetEnvironmentVariableW(name_cased, empty_strW);
 188     ok(ret == TRUE, "should not fail with empty value but GetLastError=%ld\n", GetLastError());
 189
 190     lstrcpyW(buf, fooW);
 191     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 192     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 193        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 194        ret_size, GetLastError());
 195     ok(lstrcmpW(buf, empty_strW) == 0, "should copy an empty string\n");
 196
 197     /* Test the limits */
 198     ret_size = GetEnvironmentVariableW(NULL, NULL, 0);
 199     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 200        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 201        ret_size, GetLastError());
 202
 203     ret_size = GetEnvironmentVariableW(NULL, buf, lstrlenW(value) + 1);
 204     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 205        "should not find variable but ret_size=%ld GetLastError=%ld\n",
 206        ret_size, GetLastError());
 207
 208     ret = SetEnvironmentVariableW(NULL, NULL);
 209     ok(ret == FALSE && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 210        "should fail with NULL, NULL but ret=%d and GetLastError=%ld\n",
 211        ret, GetLastError());
 212 }
 213
 214 static void test_ExpandEnvironmentStringsA()
 215 {
 216     char buf[256], buf1[256];
 217     DWORD ret_size, ret_size1;
 218
 219     ret_size1 = GetWindowsDirectoryA(buf1,256);
 220     ok ((ret_size1 >0) && (ret_size1<256), "GetWindowsDirectory Failed\n");
 221     ret_size = ExpandEnvironmentStringsA("%SystemRoot%",buf,sizeof(buf));
 222     if (ERROR_ENVVAR_NOT_FOUND == GetLastError())
 223         return;
 224     ok(!strcmp(buf, buf1), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %ld\n", buf, buf1, ret_size);
 225 }
 226
 227 START_TEST(environ)
 228 {
 229     test_GetSetEnvironmentVariableA();
 230     test_GetSetEnvironmentVariableW();
 231     test_ExpandEnvironmentStringsA();
 232 }