rostests/winetests/kernel32/format_msg.c

   1 /* Unit test suite for FormatMessageA/W
   2  *
   3  * Copyright 2002 Mike McCormack for CodeWeavers
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <stdarg.h>
  21
  22 #include "wine/test.h"
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winnls.h"
  26
  27 static DWORD __cdecl doit(DWORD flags, LPCVOID src, DWORD msg_id, DWORD lang_id,
  28                           LPSTR out, DWORD outsize, ... )
  29 {
  30     __ms_va_list list;
  31     DWORD r;
  32
  33     __ms_va_start(list, outsize);
  34     r = FormatMessageA(flags, src, msg_id,
  35         lang_id, out, outsize, &list);
  36     __ms_va_end(list);
  37     return r;
  38 }
  39
  40 static DWORD __cdecl doitW(DWORD flags, LPCVOID src, DWORD msg_id, DWORD lang_id,
  41                            LPWSTR out, DWORD outsize, ... )
  42 {
  43     __ms_va_list list;
  44     DWORD r;
  45
  46     __ms_va_start(list, outsize);
  47     r = FormatMessageW(flags, src, msg_id,
  48         lang_id, out, outsize, &list);
  49     __ms_va_end(list);
  50     return r;
  51 }
  52
  53 static void test_message_from_string_wide(void)
  54 {
  55     static const WCHAR test[]        = {'t','e','s','t',0};
  56     static const WCHAR empty[]       = {0};
  57     static const WCHAR te[]          = {'t','e',0};
  58     static const WCHAR st[]          = {'s','t',0};
  59     static const WCHAR t[]           = {'t',0};
  60     static const WCHAR e[]           = {'e',0};
  61     static const WCHAR s[]           = {'s',0};
  62     static const WCHAR fmt_null[]    = {'%',0};
  63     static const WCHAR fmt_tnull[]   = {'t','e','s','t','%',0};
  64     static const WCHAR fmt_1[]       = {'%','1',0};
  65     static const WCHAR fmt_12[]      = {'%','1','%','2',0};
  66     static const WCHAR fmt_123[]     = {'%','1','%','3','%','2','%','1',0};
  67     static const WCHAR fmt_123c[]    = {'%','1','!','c','!','%','2','!','c','!','%','3','!','c','!','%','1','!','c','!',0};
  68     static const WCHAR fmt_123lc[]   = {'%','1','!','l','c','!','%','2','!','l','c','!','%','3','!','l','c','!','%','1','!','l','c','!',0};
  69     static const WCHAR fmt_123wc[]   = {'%','1','!','w','c','!','%','2','!','w','c','!','%','3','!','w','c','!','%','1','!','w','c','!',0};
  70     static const WCHAR fmt_123C[]    = {'%','1','!','C','!','%','2','!','C','!','%','3','!','C','!','%','1','!','C','!',0};
  71     static const WCHAR fmt_123d[]    = {'%','1','!','d','!','%','2','!','d','!','%','3','!','d','!',0};
  72     static const WCHAR fmt_1s[]      = {'%','1','!','s','!',0};
  73     static const WCHAR fmt_s[]       = {'%','!','s','!',0};
  74     static const WCHAR fmt_ls[]      = {'%','!','l','s','!',0};
  75     static const WCHAR fmt_ws[]      = {'%','!','w','s','!',0};
  76     static const WCHAR fmt_S[]       = {'%','!','S','!',0};
  77     static const WCHAR fmt_14d[]     = {'%','1','!','4','d','!',0};
  78     static const WCHAR fmt_14x[]     = {'%','1','!','4','x','!',0};
  79     static const WCHAR fmt_14X[]     = {'%','1','!','4','X','!',0};
  80     static const WCHAR fmt_1_4X[]    = {'%','1','!','-','4','X','!',0};
  81     static const WCHAR fmt_1_4d[]    = {'%','1','!','-','4','d','!',0};
  82     static const WCHAR fmt_2pct[]    = {' ','%','%','%','%',' ',0};
  83     static const WCHAR fmt_2dot1d[]  = {' ', '%','.','%','.',' ',' ','%','1','!','d','!',0};
  84     static const WCHAR fmt_t0t[]     = {'t','e','s','t','%','0','t','e','s','t',0};
  85     static const WCHAR fmt_yah[]     = {'y','a','h','%','!','%','0',' ',' ',' ',0};
  86     static const WCHAR fmt_space[]   = {'%',' ','%',' ',' ',' ',0};
  87     static const WCHAR fmt_nrt[]     = {'%','n','%','r','%','t',0};
  88     static const WCHAR fmt_hi_lf[]   = {'h','i','\n',0};
  89     static const WCHAR fmt_hi_crlf[] = {'h','i','\r','\n',0};
  90     static const WCHAR fmt_cr[]      = {'\r',0};
  91     static const WCHAR fmt_crcrlf[]  = {'\r','\r','\n',0};
  92     static const WCHAR fmt_13s[]     = {'%','1','!','3','s','!',0};
  93     static const WCHAR fmt_1os[]     = {'%','1','!','*','s','!',0};
  94     static const WCHAR fmt_142u[]    = {'%','1','!','4','.','2','u','!',0};
  95     static const WCHAR fmt_1oou[]    = {'%','1','!','*','.','*','u','!',0};
  96     static const WCHAR fmt_1oou1oou[] = {'%','1','!','*','.','*','u','!',',','%','1','!','*','.','*','u','!',0};
  97     static const WCHAR fmt_1oou3oou[] = {'%','1','!','*','.','*','u','!',',','%','3','!','*','.','*','u','!',0};
  98     static const WCHAR fmt_1oou4oou[] = {'%','1','!','*','.','*','u','!',',','%','4','!','*','.','*','u','!',0};
  99
 100     static const WCHAR s_123d[]      = {'1','2','3',0};
 101     static const WCHAR s_14d[]       = {' ',' ',' ','1',0};
 102     static const WCHAR s_14x[]       = {' ',' ',' ','b',0};
 103     static const WCHAR s_14X[]       = {' ',' ',' ','B',0};
 104     static const WCHAR s_1_4X[]      = {'B',' ',' ',' ',0};
 105     static const WCHAR s_14d2[]      = {' ',' ','1','1',0};
 106     static const WCHAR s_1_4d[]      = {'1',' ',' ',' ',0};
 107     static const WCHAR s_1AB[]       = {' ','1','A','B',0};
 108     static const WCHAR s_2pct[]      = {' ','%','%',' ',0};
 109     static const WCHAR s_2dot147[]   = {' ','.','.',' ',' ','4','2','7',0};
 110     static const WCHAR s_yah[]       = {'y','a','h','!',0};
 111     static const WCHAR s_space[]     = {' ',' ',' ',' ',0};
 112     static const WCHAR s_nrt[]       = {'\r','\n','\r','\t',0};
 113     static const WCHAR s_hi_crlf[]   = {'h','i','\r','\n',0};
 114     static const WCHAR s_crlf[]      = {'\r','\n',0};
 115     static const WCHAR s_crlfcrlf[]  = {'\r','\n','\r','\n',0};
 116     static const WCHAR s_hi_sp[]     = {'h','i',' ',0};
 117     static const WCHAR s_sp[]        = {' ',0};
 118     static const WCHAR s_2sp[]       = {' ',' ',0};
 119     static const WCHAR s_spt[]       = {' ',' ','t',0};
 120     static const WCHAR s_sp3t[]      = {' ',' ',' ','t',0};
 121     static const WCHAR s_sp03[]      = {' ',' ','0','3',0};
 122     static const WCHAR s_sp001[]     = {' ',' ','0','0','1',0};
 123     static const WCHAR s_sp001002[]  = {' ',' ','0','0','1',',',' ','0','0','0','2',0};
 124     static const WCHAR s_sp001sp002[] = {' ',' ','0','0','1',',',' ',' ','0','0','0','2',0};
 125     static const WCHAR s_sp002sp001[] = {' ',' ','0','0','0','2',',',' ',' ','0','0','1',0};
 126     static const WCHAR s_sp002sp003[] = {' ',' ','0','0','0','2',',',' ','0','0','0','0','3',0};
 127     static const WCHAR s_sp001004[]   = {' ',' ','0','0','1',',','0','0','0','0','0','4',0};
 128     static const WCHAR s_null[]       = {'(','n','u','l','l',')',0};
 129
 130     static const WCHAR init_buf[] = {'x', 'x', 'x', 'x', 'x', 'x'};
 131     static const WCHAR broken_buf[] = {'t','e','s','t','x','x'};
 132
 133     WCHAR out[0x100] = {0};
 134     DWORD r, error;
 135
 136     /* the basics */
 137     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, test, 0,
 138         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 139     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 140     ok(r==4, "failed: r=%d\n", r);
 141
 142     /* null string, crashes on Windows */
 143     if (0)
 144     {
 145         SetLastError(0xdeadbeef);
 146         memcpy(out, init_buf, sizeof(init_buf));
 147         FormatMessageW(FORMAT_MESSAGE_FROM_STRING, NULL, 0,
 148             0, out, sizeof(out)/sizeof(WCHAR), NULL);
 149     }
 150
 151     /* empty string */
 152     SetLastError(0xdeadbeef);
 153     memcpy(out, init_buf, sizeof(init_buf));
 154     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, empty, 0,
 155         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 156     error = GetLastError();
 157     ok(!lstrcmpW(empty, out), "failed out=%s\n", wine_dbgstr_w(out));
 158     ok(r==0, "succeeded: r=%d\n", r);
 159     ok(error==0xdeadbeef, "last error %u\n", error);
 160
 161     /* format placeholder with no specifier */
 162     SetLastError(0xdeadbeef);
 163     memcpy(out, init_buf, sizeof(init_buf));
 164     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, fmt_null, 0,
 165         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 166     error = GetLastError();
 167     ok(!memcmp(out, init_buf, sizeof(init_buf)),
 168        "Expected the buffer to be unchanged\n");
 169     ok(r==0, "succeeded: r=%d\n", r);
 170     ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
 171
 172     /* test string with format placeholder with no specifier */
 173     SetLastError(0xdeadbeef);
 174     memcpy(out, init_buf, sizeof(init_buf));
 175     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, fmt_tnull, 0,
 176         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 177     error = GetLastError();
 178     ok(!memcmp(out, init_buf, sizeof(init_buf)) ||
 179        broken(!memcmp(out, broken_buf, sizeof(broken_buf))), /* W2K3+ */
 180        "Expected the buffer to be unchanged\n");
 181     ok(r==0, "succeeded: r=%d\n", r);
 182     ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
 183
 184     /* insertion with no variadic arguments */
 185     SetLastError(0xdeadbeef);
 186     memcpy(out, init_buf, sizeof(init_buf));
 187     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, fmt_1, 0,
 188         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 189     error = GetLastError();
 190     ok(!memcmp(out, init_buf, sizeof(init_buf)),
 191        "Expected the buffer to be unchanged\n");
 192     ok(r==0, "succeeded: r=%d\n", r);
 193     ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
 194
 195     SetLastError(0xdeadbeef);
 196     memcpy(out, init_buf, sizeof(init_buf));
 197     r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY, fmt_1, 0,
 198         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 199     error = GetLastError();
 200     ok(!memcmp(out, init_buf, sizeof(init_buf)),
 201        "Expected the buffer to be unchanged\n");
 202     ok(r==0, "succeeded: r=%d\n", r);
 203     ok(error==ERROR_INVALID_PARAMETER, "last error %u\n", error);
 204
 205     /* using the format feature */
 206     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1s, 0,
 207         0, out, sizeof(out)/sizeof(WCHAR), test);
 208     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 209     ok(r==4,"failed: r=%d\n", r);
 210
 211     /* no format */
 212     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1, 0,
 213         0, out, sizeof(out)/sizeof(WCHAR), test);
 214     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 215     ok(r==4,"failed: r=%d\n", r);
 216
 217     /* two pieces */
 218     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_12, 0,
 219         0, out, sizeof(out)/sizeof(WCHAR), te, st);
 220     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 221     ok(r==4,"failed: r=%d\n", r);
 222
 223     /* three pieces */
 224     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123, 0,
 225         0, out, sizeof(out)/sizeof(WCHAR), t, s, e);
 226     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 227     ok(r==4,"failed: r=%d\n", r);
 228
 229     /* s doesn't seem to work in format strings */
 230     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_s, 0,
 231         0, out, sizeof(out)/sizeof(WCHAR), test);
 232     ok(!lstrcmpW(&fmt_s[1], out), "failed out=%s\n", wine_dbgstr_w(out));
 233     ok(r==3, "failed: r=%d\n", r);
 234
 235     /* nor ls */
 236     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_ls, 0,
 237         0, out, sizeof(out)/sizeof(WCHAR), test);
 238     ok(!lstrcmpW(&fmt_ls[1], out), "failed out=%s\n", wine_dbgstr_w(out));
 239     ok(r==4, "failed: r=%d\n", r);
 240
 241     /* nor S */
 242     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_S, 0,
 243         0, out, sizeof(out)/sizeof(WCHAR), test);
 244     ok(!lstrcmpW(&fmt_S[1], out), "failed out=%s\n", wine_dbgstr_w(out));
 245     ok(r==3, "failed: r=%d\n", r);
 246
 247     /* nor ws */
 248     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_ws, 0,
 249         0, out, sizeof(out)/sizeof(WCHAR), test);
 250     ok(!lstrcmpW(&fmt_ws[1], out), "failed out=%s\n", wine_dbgstr_w(out));
 251     ok(r==4, "failed: r=%d\n", r);
 252
 253     /* as characters */
 254     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123c, 0,
 255         0, out, sizeof(out)/sizeof(WCHAR), 't', 'e', 's');
 256     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 257     ok(r==4,"failed: r=%d\n", r);
 258
 259     /* lc is unicode */
 260     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123lc, 0,
 261         0, out, sizeof(out)/sizeof(WCHAR), 't', 'e', 's');
 262     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 263     ok(r==4,"failed: r=%d\n", r);
 264
 265     /* wc is unicode */
 266     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123wc, 0,
 267         0, out, sizeof(out)/sizeof(WCHAR), 't', 'e', 's');
 268     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 269     ok(r==4,"failed: r=%d\n", r);
 270
 271     /* C is unicode */
 272     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123C, 0,
 273         0, out, sizeof(out)/sizeof(WCHAR), 't', 'e', 's');
 274     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 275     ok(r==4,"failed: r=%d\n", r);
 276
 277     /* some numbers */
 278     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_123d, 0,
 279         0, out, sizeof(out)/sizeof(WCHAR), 1, 2, 3);
 280     ok(!lstrcmpW(s_123d, out), "failed out=%s\n", wine_dbgstr_w(out));
 281     ok(r==3,"failed: r=%d\n", r);
 282
 283     /* a single digit with some spacing */
 284     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_14d, 0,
 285         0, out, sizeof(out)/sizeof(WCHAR), 1);
 286     ok(!lstrcmpW(s_14d, out), "failed out=%s\n", wine_dbgstr_w(out));
 287     ok(r==4,"failed: r=%d\n", r);
 288
 289     /* a single digit, left justified */
 290     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1_4d, 0,
 291         0, out, sizeof(out)/sizeof(CHAR), 1);
 292     ok(!lstrcmpW(s_1_4d, out), "failed out=%s\n", wine_dbgstr_w(out));
 293     ok(r==4,"failed: r=%d\n", r);
 294
 295     /* two digit decimal number */
 296     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_14d, 0,
 297         0, out, sizeof(out)/sizeof(WCHAR), 11);
 298     ok(!lstrcmpW(s_14d2, out), "failed out=%s\n", wine_dbgstr_w(out));
 299     ok(r==4,"failed: r=%d\n", r);
 300
 301     /* a hex number */
 302     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_14x, 0,
 303         0, out, sizeof(out)/sizeof(WCHAR), 11);
 304     ok(!lstrcmpW(s_14x, out), "failed out=%s\n", wine_dbgstr_w(out));
 305     ok(r==4,"failed: r=%d\n", r);
 306
 307     /* a hex number, upper case */
 308     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_14X, 0,
 309         0, out, sizeof(out)/sizeof(WCHAR), 11);
 310     ok(!lstrcmpW(s_14X, out), "failed out=%s\n", wine_dbgstr_w(out));
 311     ok(r==4,"failed: r=%d\n", r);
 312
 313     /* a hex number, upper case, left justified */
 314     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1_4X, 0,
 315         0, out, sizeof(out)/sizeof(WCHAR), 11);
 316     ok(!lstrcmpW(s_1_4X, out), "failed out=%s\n", wine_dbgstr_w(out));
 317     ok(r==4,"failed: r=%d\n", r);
 318
 319     /* a long hex number, upper case */
 320     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_14X, 0,
 321         0, out, sizeof(out)/sizeof(WCHAR), 0x1ab);
 322     ok(!lstrcmpW(s_1AB, out), "failed out=%s\n", wine_dbgstr_w(out));
 323     ok(r==4,"failed: r=%d\n", r);
 324
 325     /* two percent... */
 326     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_2pct, 0,
 327         0, out, sizeof(out)/sizeof(WCHAR));
 328     ok(!lstrcmpW(s_2pct, out), "failed out=%s\n", wine_dbgstr_w(out));
 329     ok(r==4,"failed: r=%d\n", r);
 330
 331     /* periods are special cases */
 332     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_2dot1d, 0,
 333         0, out, sizeof(out)/sizeof(WCHAR), 0x1ab);
 334     ok(!lstrcmpW(s_2dot147, out), "failed out=%s\n", wine_dbgstr_w(out));
 335     ok(r==8,"failed: r=%d\n", r);
 336
 337     /* %0 ends the line */
 338     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_t0t, 0,
 339         0, out, sizeof(out)/sizeof(WCHAR));
 340     ok(!lstrcmpW(test, out), "failed out=%s\n", wine_dbgstr_w(out));
 341     ok(r==4,"failed: r=%d\n", r);
 342
 343     /* %! prints an exclamation */
 344     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_yah, 0,
 345         0, out, sizeof(out)/sizeof(WCHAR));
 346     ok(!lstrcmpW(s_yah, out), "failed out=%s\n", wine_dbgstr_w(out));
 347     ok(r==4,"failed: r=%d\n", r);
 348
 349     /* %space */
 350     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_space, 0,
 351         0, out, sizeof(out)/sizeof(WCHAR));
 352     ok(!lstrcmpW(s_space, out), "failed out=%s\n", wine_dbgstr_w(out));
 353     ok(r==4,"failed: r=%d\n", r);
 354
 355     /* %n yields \r\n, %r yields \r, %t yields \t */
 356     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_nrt, 0,
 357         0, out, sizeof(out)/sizeof(WCHAR));
 358     ok(!lstrcmpW(s_nrt, out), "failed out=%s\n", wine_dbgstr_w(out));
 359     ok(r==4,"failed: r=%d\n", r);
 360
 361     /* line feed */
 362     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_hi_lf, 0,
 363         0, out, sizeof(out)/sizeof(WCHAR));
 364     ok(!lstrcmpW(s_hi_crlf, out), "failed out=%s\n", wine_dbgstr_w(out));
 365     ok(r==4,"failed: r=%d\n", r);
 366
 367     /* carriage return line feed */
 368     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_hi_crlf, 0,
 369         0, out, sizeof(out)/sizeof(WCHAR));
 370     ok(!lstrcmpW(s_hi_crlf, out), "failed out=%s\n", wine_dbgstr_w(out));
 371     ok(r==4,"failed: r=%d\n", r);
 372
 373     /* carriage return */
 374     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_cr, 0,
 375         0, out, sizeof(out)/sizeof(WCHAR));
 376     ok(!lstrcmpW(s_crlf, out), "failed out=%s\n", wine_dbgstr_w(out));
 377     ok(r==2,"failed: r=%d\n", r);
 378
 379     /* double carriage return line feed */
 380     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_crcrlf, 0,
 381         0, out, sizeof(out)/sizeof(WCHAR));
 382     ok(!lstrcmpW(s_crlfcrlf, out), "failed out=%s\n", wine_dbgstr_w(out));
 383     ok(r==4,"failed: r=%d\n", r);
 384
 385     /* null string as argument */
 386     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1, 0,
 387         0, out, sizeof(out)/sizeof(WCHAR), NULL);
 388     ok(!lstrcmpW(s_null, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 389     ok(r==6,"failed: r=%d\n",r);
 390
 391     /* precision and width */
 392
 393     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_13s,
 394               0, 0, out, sizeof(out)/sizeof(WCHAR), t );
 395     ok(!lstrcmpW(s_spt, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 396     ok(r==3, "failed: r=%d\n",r);
 397     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1os,
 398               0, 0, out, sizeof(out)/sizeof(WCHAR), 4, t );
 399     ok(!lstrcmpW( s_sp3t, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 400     ok(r==4,"failed: r=%d\n",r);
 401     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_142u,
 402               0, 0, out, sizeof(out)/sizeof(WCHAR), 3 );
 403     ok(!lstrcmpW( s_sp03, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 404     ok(r==4,"failed: r=%d\n",r);
 405     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1oou,
 406               0, 0, out, sizeof(out)/sizeof(WCHAR), 5, 3, 1 );
 407     ok(!lstrcmpW( s_sp001, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 408     ok(r==5,"failed: r=%d\n",r);
 409     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1oou1oou,
 410               0, 0, out, sizeof(out)/sizeof(WCHAR), 5, 3, 1, 4, 2 );
 411     ok(!lstrcmpW( s_sp001002, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 412     ok(r==11,"failed: r=%d\n",r);
 413     r = doitW(FORMAT_MESSAGE_FROM_STRING, fmt_1oou3oou,
 414               0, 0, out, sizeof(out)/sizeof(WCHAR), 5, 3, 1, 6, 4, 2 );
 415     ok(!lstrcmpW( s_sp001sp002, out) ||
 416        broken(!lstrcmpW(s_sp001004, out)), /* NT4/Win2k */
 417        "failed out=[%s]\n", wine_dbgstr_w(out));
 418     ok(r==12,"failed: r=%d\n",r);
 419     /* args are not counted the same way with an argument array */
 420     {
 421         ULONG_PTR args[] = { 6, 4, 2, 5, 3, 1 };
 422         r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY, fmt_1oou1oou,
 423                            0, 0, out, sizeof(out)/sizeof(WCHAR), (__ms_va_list *)args );
 424         ok(!lstrcmpW(s_sp002sp003, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 425         ok(r==13,"failed: r=%d\n",r);
 426         r = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY, fmt_1oou4oou,
 427                            0, 0, out, sizeof(out)/sizeof(WCHAR), (__ms_va_list *)args );
 428         ok(!lstrcmpW(s_sp002sp001, out),"failed out=[%s]\n", wine_dbgstr_w(out));
 429         ok(r==12,"failed: r=%d\n",r);
 430     }
 431
 432     /* change of pace... test the low byte of dwflags */
 433
 434     /* line feed */
 435     r = doitW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_hi_lf, 0,
 436         0, out, sizeof(out)/sizeof(WCHAR));
 437     ok(!lstrcmpW(s_hi_sp, out), "failed out=%s\n", wine_dbgstr_w(out));
 438     ok(r==3,"failed: r=%d\n", r);
 439
 440     /* carriage return line feed */
 441     r = doitW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_hi_crlf, 0,
 442         0, out, sizeof(out)/sizeof(WCHAR));
 443     ok(!lstrcmpW(s_hi_sp, out), "failed out=%s\n", wine_dbgstr_w(out));
 444     ok(r==3,"failed: r=%d\n", r);
 445
 446     /* carriage return */
 447     r = doitW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_cr, 0,
 448         0, out, sizeof(out)/sizeof(WCHAR));
 449     ok(!lstrcmpW(s_sp, out), "failed out=%s\n", wine_dbgstr_w(out));
 450     ok(r==1,"failed: r=%d\n", r);
 451
 452     /* double carriage return line feed */
 453     r = doitW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_crcrlf, 0,
 454         0, out, sizeof(out)/sizeof(WCHAR));
 455     ok(!lstrcmpW(s_2sp, out), "failed out=%s\n", wine_dbgstr_w(out));
 456     ok(r==2,"failed: r=%d\n", r);
 457 }
 458
 459 static void test_message_from_string(void)
 460 {
 461     CHAR out[0x100] = {0};
 462     DWORD r;
 463     static const char init_buf[] = {'x', 'x', 'x', 'x', 'x', 'x'};
 464     static const WCHAR szwTest[] = { 't','e','s','t',0};
 465
 466     /* the basics */
 467     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test", 0,
 468         0, out, sizeof(out)/sizeof(CHAR),NULL);
 469     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 470     ok(r==4,"failed: r=%d\n",r);
 471
 472     /* null string, crashes on Windows */
 473     if (0)
 474     {
 475         SetLastError(0xdeadbeef);
 476         memcpy(out, init_buf, sizeof(init_buf));
 477         FormatMessageA(FORMAT_MESSAGE_FROM_STRING, NULL, 0,
 478             0, out, sizeof(out)/sizeof(CHAR), NULL);
 479     }
 480
 481     /* empty string */
 482     SetLastError(0xdeadbeef);
 483     memcpy(out, init_buf, sizeof(init_buf));
 484     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "", 0,
 485         0, out, sizeof(out)/sizeof(CHAR), NULL);
 486     ok(!memcmp(out, init_buf, sizeof(init_buf)), "Expected the buffer to be untouched\n");
 487     ok(r==0, "succeeded: r=%d\n", r);
 488     ok(GetLastError()==0xdeadbeef,
 489        "last error %u\n", GetLastError());
 490
 491     /* format placeholder with no specifier */
 492     SetLastError(0xdeadbeef);
 493     memcpy(out, init_buf, sizeof(init_buf));
 494     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "%", 0,
 495         0, out, sizeof(out)/sizeof(CHAR), NULL);
 496     ok(!memcmp(out, init_buf, sizeof(init_buf)),
 497        "Expected the buffer to be untouched\n");
 498     ok(r==0, "succeeded: r=%d\n", r);
 499     ok(GetLastError()==ERROR_INVALID_PARAMETER,
 500        "last error %u\n", GetLastError());
 501
 502     /* test string with format placeholder with no specifier */
 503     SetLastError(0xdeadbeef);
 504     memcpy(out, init_buf, sizeof(init_buf));
 505     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test%", 0,
 506         0, out, sizeof(out)/sizeof(CHAR), NULL);
 507     ok(!memcmp(out, init_buf, sizeof(init_buf)),
 508        "Expected the buffer to be untouched\n");
 509     ok(r==0, "succeeded: r=%d\n", r);
 510     ok(GetLastError()==ERROR_INVALID_PARAMETER,
 511        "last error %u\n", GetLastError());
 512
 513     /* insertion with no variadic arguments */
 514     SetLastError(0xdeadbeef);
 515     memcpy(out, init_buf, sizeof(init_buf));
 516     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "%1", 0,
 517         0, out, sizeof(out)/sizeof(CHAR), NULL);
 518     ok(!memcmp(out, init_buf, sizeof(init_buf)), "Expected the buffer to be untouched\n");
 519     ok(r==0, "succeeded: r=%d\n", r);
 520     ok(GetLastError()==ERROR_INVALID_PARAMETER, "last error %u\n", GetLastError());
 521
 522     SetLastError(0xdeadbeef);
 523     memcpy(out, init_buf, sizeof(init_buf));
 524     r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY, "%1", 0,
 525         0, out, sizeof(out)/sizeof(CHAR), NULL);
 526     ok(!memcmp(out, init_buf, sizeof(init_buf)), "Expected the buffer to be untouched\n");
 527     ok(r==0, "succeeded: r=%d\n", r);
 528     ok(GetLastError()==ERROR_INVALID_PARAMETER, "last error %u\n", GetLastError());
 529
 530     /* using the format feature */
 531     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!s!", 0,
 532         0, out, sizeof(out)/sizeof(CHAR), "test");
 533     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 534     ok(r==4,"failed: r=%d\n",r);
 535
 536     /* no format */
 537     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1", 0,
 538         0, out, sizeof(out)/sizeof(CHAR), "test");
 539     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 540     ok(r==4,"failed: r=%d\n",r);
 541
 542     /* two pieces */
 543     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1%2", 0,
 544         0, out, sizeof(out)/sizeof(CHAR), "te","st");
 545     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 546     ok(r==4,"failed: r=%d\n",r);
 547
 548     /* three pieces */
 549     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1%3%2%1", 0,
 550         0, out, sizeof(out)/sizeof(CHAR), "t","s","e");
 551     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 552     ok(r==4,"failed: r=%d\n",r);
 553
 554     /* s doesn't seem to work in format strings */
 555     r = doit(FORMAT_MESSAGE_FROM_STRING, "%!s!", 0,
 556         0, out, sizeof(out)/sizeof(CHAR), "test");
 557     ok(!strcmp("!s!", out),"failed out=[%s]\n",out);
 558     ok(r==3,"failed: r=%d\n",r);
 559
 560     /* ls is unicode */
 561     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!ls!", 0,
 562         0, out, sizeof(out)/sizeof(CHAR), szwTest);
 563     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 564     ok(r==4,"failed: r=%d\n",r);
 565
 566     /* S is unicode */
 567     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!S!", 0,
 568         0, out, sizeof(out)/sizeof(CHAR), szwTest);
 569     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 570     ok(r==4,"failed: r=%d\n",r);
 571
 572     /* ws is unicode */
 573     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!ws!", 0,
 574         0, out, sizeof(out)/sizeof(CHAR), szwTest);
 575     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 576     ok(r==4,"failed: r=%d\n",r);
 577
 578     /* as characters */
 579     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!c!%2!c!%3!c!%1!c!", 0,
 580         0, out, sizeof(out)/sizeof(CHAR), 't','e','s');
 581     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 582     ok(r==4,"failed: r=%d\n",r);
 583
 584     /* lc is unicode */
 585     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!lc!%2!lc!%3!lc!%1!lc!", 0,
 586         0, out, sizeof(out)/sizeof(CHAR), 't','e','s');
 587     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 588     ok(r==4,"failed: r=%d\n",r);
 589
 590     /* wc is unicode */
 591     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!wc!%2!wc!%3!wc!%1!wc!", 0,
 592         0, out, sizeof(out)/sizeof(CHAR), 't','e','s');
 593     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 594     ok(r==4,"failed: r=%d\n",r);
 595
 596     /* C is unicode */
 597     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!C!%2!C!%3!C!%1!C!", 0,
 598         0, out, sizeof(out)/sizeof(CHAR), 't','e','s');
 599     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 600     ok(r==4,"failed: r=%d\n",r);
 601
 602     /* some numbers */
 603     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!d!%2!d!%3!d!", 0,
 604         0, out, sizeof(out)/sizeof(CHAR), 1,2,3);
 605     ok(!strcmp("123", out),"failed out=[%s]\n",out);
 606     ok(r==3,"failed: r=%d\n",r);
 607
 608     /* a single digit with some spacing */
 609     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4d!", 0,
 610         0, out, sizeof(out)/sizeof(CHAR), 1);
 611     ok(!strcmp("   1", out),"failed out=[%s]\n",out);
 612     ok(r==4,"failed: r=%d\n",r);
 613
 614     /* a single digit, left justified */
 615     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!-4d!", 0,
 616         0, out, sizeof(out)/sizeof(CHAR), 1);
 617     ok(!strcmp("1   ", out),"failed out=[%s]\n",out);
 618     ok(r==4,"failed: r=%d\n",r);
 619
 620     /* two digit decimal number */
 621     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4d!", 0,
 622         0, out, sizeof(out)/sizeof(CHAR), 11);
 623     ok(!strcmp("  11", out),"failed out=[%s]\n",out);
 624     ok(r==4,"failed: r=%d\n",r);
 625
 626     /* a hex number */
 627     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4x!", 0,
 628         0, out, sizeof(out)/sizeof(CHAR), 11);
 629     ok(!strcmp("   b", out),"failed out=[%s]\n",out);
 630     ok(r==4,"failed: r=%d\n",r);
 631
 632     /* a hex number, upper case */
 633     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4X!", 0,
 634         0, out, sizeof(out)/sizeof(CHAR), 11);
 635     ok(!strcmp("   B", out),"failed out=[%s]\n",out);
 636     ok(r==4,"failed: r=%d\n",r);
 637
 638     /* a hex number, upper case, left justified */
 639     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!-4X!", 0,
 640         0, out, sizeof(out)/sizeof(CHAR), 11);
 641     ok(!strcmp("B   ", out),"failed out=[%s]\n",out);
 642     ok(r==4,"failed: r=%d\n",r);
 643
 644     /* a long hex number, upper case */
 645     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4X!", 0,
 646         0, out, sizeof(out)/sizeof(CHAR), 0x1ab);
 647     ok(!strcmp(" 1AB", out),"failed out=[%s]\n",out);
 648     ok(r==4,"failed: r=%d\n",r);
 649
 650     /* two percent... */
 651     r = doit(FORMAT_MESSAGE_FROM_STRING, " %%%% ", 0,
 652         0, out, sizeof(out)/sizeof(CHAR));
 653     ok(!strcmp(" %% ", out),"failed out=[%s]\n",out);
 654     ok(r==4,"failed: r=%d\n",r);
 655
 656     /* periods are special cases */
 657     r = doit(FORMAT_MESSAGE_FROM_STRING, " %.%. %1!d!", 0,
 658         0, out, sizeof(out)/sizeof(CHAR), 0x1ab);
 659     ok(!strcmp(" .. 427", out),"failed out=[%s]\n",out);
 660     ok(r==7,"failed: r=%d\n",r);
 661
 662     /* %0 ends the line */
 663     r = doit(FORMAT_MESSAGE_FROM_STRING, "test%0test", 0,
 664         0, out, sizeof(out)/sizeof(CHAR));
 665     ok(!strcmp("test", out),"failed out=[%s]\n",out);
 666     ok(r==4,"failed: r=%d\n",r);
 667
 668     /* %! prints an exclamation */
 669     r = doit(FORMAT_MESSAGE_FROM_STRING, "yah%!%0   ", 0,
 670         0, out, sizeof(out)/sizeof(CHAR));
 671     ok(!strcmp("yah!", out),"failed out=[%s]\n",out);
 672     ok(r==4,"failed: r=%d\n",r);
 673
 674     /* %space */
 675     r = doit(FORMAT_MESSAGE_FROM_STRING, "% %   ", 0,
 676         0, out, sizeof(out)/sizeof(CHAR));
 677     ok(!strcmp("    ", out),"failed out=[%s]\n",out);
 678     ok(r==4,"failed: r=%d\n",r);
 679
 680     /* %n yields \r\n, %r yields \r, %t yields \t */
 681     r = doit(FORMAT_MESSAGE_FROM_STRING, "%n%r%t", 0,
 682         0, out, sizeof(out)/sizeof(CHAR));
 683     ok(!strcmp("\r\n\r\t", out),"failed out=[%s]\n",out);
 684     ok(r==4,"failed: r=%d\n",r);
 685
 686     /* line feed */
 687     r = doit(FORMAT_MESSAGE_FROM_STRING, "hi\n", 0,
 688         0, out, sizeof(out)/sizeof(CHAR));
 689     ok(!strcmp("hi\r\n", out),"failed out=[%s]\n",out);
 690     ok(r==4,"failed: r=%d\n",r);
 691
 692     /* carriage return line feed */
 693     r = doit(FORMAT_MESSAGE_FROM_STRING, "hi\r\n", 0,
 694         0, out, sizeof(out)/sizeof(CHAR));
 695     ok(!strcmp("hi\r\n", out),"failed out=[%s]\n",out);
 696     ok(r==4,"failed: r=%d\n",r);
 697
 698     /* carriage return */
 699     r = doit(FORMAT_MESSAGE_FROM_STRING, "\r", 0,
 700         0, out, sizeof(out)/sizeof(CHAR));
 701     ok(!strcmp("\r\n", out),"failed out=[%s]\n",out);
 702     ok(r==2,"failed: r=%d\n",r);
 703
 704     /* double carriage return line feed */
 705     r = doit(FORMAT_MESSAGE_FROM_STRING, "\r\r\n", 0,
 706         0, out, sizeof(out)/sizeof(CHAR));
 707     ok(!strcmp("\r\n\r\n", out),"failed out=[%s]\n",out);
 708     ok(r==4,"failed: r=%d\n",r);
 709
 710     /* null string as argument */
 711     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1", 0,
 712         0, out, sizeof(out)/sizeof(CHAR), NULL);
 713     ok(!strcmp("(null)", out),"failed out=[%s]\n",out);
 714     ok(r==6,"failed: r=%d\n",r);
 715
 716     /* precision and width */
 717
 718     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!3s!",
 719              0, 0, out, sizeof(out), "t" );
 720     ok(!strcmp("  t", out),"failed out=[%s]\n",out);
 721     ok(r==3, "failed: r=%d\n",r);
 722     r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!*s!",
 723              0, 0, out, sizeof(out), 4, "t");
 724     if (!strcmp("*s",out)) win_skip( "width/precision not supported\n" );
 725     else
 726     {
 727         ok(!strcmp( "   t", out),"failed out=[%s]\n",out);
 728         ok(r==4,"failed: r=%d\n",r);
 729         r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!4.2u!",
 730                  0, 0, out, sizeof(out), 3 );
 731         ok(!strcmp( "  03", out),"failed out=[%s]\n",out);
 732         ok(r==4,"failed: r=%d\n",r);
 733         r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!*.*u!",
 734                  0, 0, out, sizeof(out), 5, 3, 1 );
 735         ok(!strcmp( "  001", out),"failed out=[%s]\n",out);
 736         ok(r==5,"failed: r=%d\n",r);
 737         r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!*.*u!,%1!*.*u!",
 738                  0, 0, out, sizeof(out), 5, 3, 1, 4, 2 );
 739         ok(!strcmp( "  001, 0002", out),"failed out=[%s]\n",out);
 740         ok(r==11,"failed: r=%d\n",r);
 741         r = doit(FORMAT_MESSAGE_FROM_STRING, "%1!*.*u!,%3!*.*u!",
 742                  0, 0, out, sizeof(out), 5, 3, 1, 6, 4, 2 );
 743         /* older Win versions marked as broken even though this is arguably the correct behavior */
 744         /* but the new (brain-damaged) behavior is specified on MSDN */
 745         ok(!strcmp( "  001,  0002", out) ||
 746            broken(!strcmp("  001,000004", out)), /* NT4/Win2k */
 747            "failed out=[%s]\n",out);
 748         ok(r==12,"failed: r=%d\n",r);
 749         /* args are not counted the same way with an argument array */
 750         {
 751             ULONG_PTR args[] = { 6, 4, 2, 5, 3, 1 };
 752             r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY,
 753                                "%1!*.*u!,%1!*.*u!", 0, 0, out, sizeof(out), (__ms_va_list *)args );
 754             ok(!strcmp("  0002, 00003", out),"failed out=[%s]\n",out);
 755             ok(r==13,"failed: r=%d\n",r);
 756             r = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY,
 757                                "%1!*.*u!,%4!*.*u!", 0, 0, out, sizeof(out), (__ms_va_list *)args );
 758             ok(!strcmp("  0002,  001", out),"failed out=[%s]\n",out);
 759             ok(r==12,"failed: r=%d\n",r);
 760         }
 761     }
 762
 763     /* change of pace... test the low byte of dwflags */
 764
 765     /* line feed */
 766     r = doit(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, "hi\n", 0,
 767         0, out, sizeof(out)/sizeof(CHAR));
 768     ok(!strcmp("hi ", out), "failed out=[%s]\n",out);
 769     ok(r==3, "failed: r=%d\n",r);
 770
 771     /* carriage return line feed */
 772     r = doit(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, "hi\r\n", 0,
 773         0, out, sizeof(out)/sizeof(CHAR));
 774     ok(!strcmp("hi ", out),"failed out=[%s]\n",out);
 775     ok(r==3,"failed: r=%d\n",r);
 776
 777     /* carriage return */
 778     r = doit(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, "\r", 0,
 779         0, out, sizeof(out)/sizeof(CHAR));
 780     ok(!strcmp(" ", out),"failed out=[%s]\n",out);
 781     ok(r==1,"failed: r=%d\n",r);
 782
 783     /* double carriage return line feed */
 784     r = doit(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_MAX_WIDTH_MASK, "\r\r\n", 0,
 785         0, out, sizeof(out)/sizeof(CHAR));
 786     ok(!strcmp("  ", out),"failed out=[%s]\n",out);
 787     ok(r==2,"failed: r=%d\n",r);
 788 }
 789
 790 static void test_message_ignore_inserts(void)
 791 {
 792     static const char init_buf[] = {'x', 'x', 'x', 'x', 'x'};
 793
 794     DWORD ret;
 795     CHAR out[256];
 796
 797     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "test", 0, 0, out,
 798                          sizeof(out)/sizeof(CHAR), NULL);
 799     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 800     ok(!strcmp("test", out), "Expected output string \"test\", got %s\n", out);
 801
 802     /* The %0 escape sequence is handled. */
 803     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "test%0", 0, 0, out,
 804                          sizeof(out)/sizeof(CHAR), NULL);
 805     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 806     ok(!strcmp("test", out), "Expected output string \"test\", got %s\n", out);
 807
 808     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "test%0test", 0, 0, out,
 809                          sizeof(out)/sizeof(CHAR), NULL);
 810     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 811     ok(!strcmp("test", out), "Expected output string \"test\", got %s\n", out);
 812
 813     /* While FormatMessageA returns 0 in this case, no last error code is set. */
 814     SetLastError(0xdeadbeef);
 815     memcpy(out, init_buf, sizeof(init_buf));
 816     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "%0test", 0, 0, out,
 817                          sizeof(out)/sizeof(CHAR), NULL);
 818     ok(ret == 0, "Expected FormatMessageA to return 0, got %d\n", ret);
 819     ok(!memcmp(out, init_buf, sizeof(init_buf)), "Expected the output buffer to be untouched\n");
 820     ok(GetLastError() == 0xdeadbeef, "Expected GetLastError() to return 0xdeadbeef, got %u\n", GetLastError());
 821
 822     /* Insert sequences are ignored. */
 823     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "test%1%2!*.*s!%99", 0, 0, out,
 824                          sizeof(out)/sizeof(CHAR), NULL);
 825     ok(ret == 17, "Expected FormatMessageA to return 17, got %d\n", ret);
 826     ok(!strcmp("test%1%2!*.*s!%99", out), "Expected output string \"test%%1%%2!*.*s!%%99\", got %s\n", out);
 827
 828     /* Only the "%n", "%r", and "%t" escape sequences are processed. */
 829     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "%%% %.%!", 0, 0, out,
 830                          sizeof(out)/sizeof(CHAR), NULL);
 831     ok(ret == 8, "Expected FormatMessageA to return 8, got %d\n", ret);
 832     ok(!strcmp("%%% %.%!", out), "Expected output string \"%%%%%% %%.%%!\", got %s\n", out);
 833
 834     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "%n%r%t", 0, 0, out,
 835                          sizeof(out)/sizeof(CHAR), NULL);
 836     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 837     ok(!strcmp("\r\n\r\t", out), "Expected output string \"\\r\\n\\r\\t\", got %s\n", out);
 838
 839     /* CRLF characters are processed normally. */
 840     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "hi\n", 0, 0, out,
 841                          sizeof(out)/sizeof(CHAR), NULL);
 842     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 843     ok(!strcmp("hi\r\n", out), "Expected output string \"hi\\r\\n\", got %s\n", out);
 844
 845     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "hi\r\n", 0, 0, out,
 846                          sizeof(out)/sizeof(CHAR), NULL);
 847     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 848     ok(!strcmp("hi\r\n", out), "Expected output string \"hi\\r\\n\", got %s\n", out);
 849
 850     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "\r", 0, 0, out,
 851                          sizeof(out)/sizeof(CHAR), NULL);
 852     ok(ret == 2, "Expected FormatMessageA to return 2, got %d\n", ret);
 853     ok(!strcmp("\r\n", out), "Expected output string \"\\r\\n\", got %s\n", out);
 854
 855     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, "\r\r\n", 0, 0, out,
 856                          sizeof(out)/sizeof(CHAR), NULL);
 857     ok(ret == 4, "Expected FormatMessageA to return 4, got %d\n", ret);
 858     ok(!strcmp("\r\n\r\n", out), "Expected output string \"\\r\\n\\r\\n\", got %s\n", out);
 859
 860     /* The width parameter is handled the same also. */
 861     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 862                          FORMAT_MESSAGE_MAX_WIDTH_MASK, "hi\n", 0, 0, out,
 863                          sizeof(out)/sizeof(CHAR), NULL);
 864     ok(!strcmp("hi ", out), "Expected output string \"hi \", got %s\n", out);
 865     ok(ret == 3, "Expected FormatMessageA to return 3, got %d\n", ret);
 866
 867     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 868                          FORMAT_MESSAGE_MAX_WIDTH_MASK, "hi\r\n", 0, 0, out,
 869                          sizeof(out)/sizeof(CHAR), NULL);
 870     ok(ret == 3, "Expected FormatMessageA to return 3, got %d\n", ret);
 871     ok(!strcmp("hi ", out), "Expected output string \"hi \", got %s\n", out);
 872
 873     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 874                          FORMAT_MESSAGE_MAX_WIDTH_MASK, "\r", 0, 0, out,
 875                          sizeof(out)/sizeof(CHAR), NULL);
 876     ok(ret == 1, "Expected FormatMessageA to return 1, got %d\n", ret);
 877     ok(!strcmp(" ", out), "Expected output string \" \", got %s\n", out);
 878
 879     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 880                          FORMAT_MESSAGE_MAX_WIDTH_MASK, "\r\r\n", 0, 0, out,
 881                          sizeof(out)/sizeof(CHAR), NULL);
 882     ok(ret == 2, "Expected FormatMessageA to return 2, got %d\n", ret);
 883     ok(!strcmp("  ", out), "Expected output string \"  \", got %s\n", out);
 884 }
 885
 886 static void test_message_ignore_inserts_wide(void)
 887 {
 888     static const WCHAR test[] = {'t','e','s','t',0};
 889     static const WCHAR empty[] = {0};
 890     static const WCHAR fmt_t0[] = {'t','e','s','t','%','0',0};
 891     static const WCHAR fmt_t0t[] = {'t','e','s','t','%','0','t','e','s','t',0};
 892     static const WCHAR fmt_0t[] = {'%','0','t','e','s','t',0};
 893     static const WCHAR fmt_t12oos99[] = {'t','e','s','t','%','1','%','2','!','*','.','*','s','!','%','9','9',0};
 894     static const WCHAR fmt_pctspacedot[] = {'%','%','%',' ','%','.','%','!',0};
 895     static const WCHAR fmt_nrt[] = {'%','n','%','r','%','t',0};
 896     static const WCHAR fmt_hi_lf[]   = {'h','i','\n',0};
 897     static const WCHAR fmt_hi_crlf[] = {'h','i','\r','\n',0};
 898     static const WCHAR fmt_cr[]      = {'\r',0};
 899     static const WCHAR fmt_crcrlf[]  = {'\r','\r','\n',0};
 900
 901     static const WCHAR s_nrt[] = {'\r','\n','\r','\t',0};
 902     static const WCHAR s_hi_crlf[] = {'h','i','\r','\n',0};
 903     static const WCHAR s_crlf[] = {'\r','\n',0};
 904     static const WCHAR s_crlfcrlf[] = {'\r','\n','\r','\n',0};
 905     static const WCHAR s_hi_sp[] = {'h','i',' ',0};
 906     static const WCHAR s_sp[] = {' ',0};
 907     static const WCHAR s_2sp[] = {' ',' ',0};
 908
 909     DWORD ret;
 910     WCHAR out[256];
 911
 912     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, test, 0, 0, out,
 913                          sizeof(out)/sizeof(WCHAR), NULL);
 914     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 915     ok(!lstrcmpW(test, out), "Expected output string \"test\", got %s\n", wine_dbgstr_w(out));
 916
 917     /* The %0 escape sequence is handled. */
 918     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_t0, 0, 0, out,
 919                          sizeof(out)/sizeof(WCHAR), NULL);
 920     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 921     ok(!lstrcmpW(test, out), "Expected output string \"test\", got %s\n", wine_dbgstr_w(out));
 922
 923     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_t0t, 0, 0, out,
 924                          sizeof(out)/sizeof(WCHAR), NULL);
 925     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 926     ok(!lstrcmpW(test, out), "Expected output string \"test\", got %s\n", wine_dbgstr_w(out));
 927
 928     /* While FormatMessageA returns 0 in this case, no last error code is set. */
 929     SetLastError(0xdeadbeef);
 930     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_0t, 0, 0, out,
 931                          sizeof(out)/sizeof(WCHAR), NULL);
 932     ok(ret == 0, "Expected FormatMessageW to return 0, got %d\n", ret);
 933     ok(!lstrcmpW(empty, out), "Expected the output buffer to be the empty string, got %s\n", wine_dbgstr_w(out));
 934     ok(GetLastError() == 0xdeadbeef, "Expected GetLastError() to return 0xdeadbeef, got %u\n", GetLastError());
 935
 936     /* Insert sequences are ignored. */
 937     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_t12oos99, 0, 0, out,
 938                          sizeof(out)/sizeof(WCHAR), NULL);
 939     ok(ret == 17, "Expected FormatMessageW to return 17, got %d\n", ret);
 940     ok(!lstrcmpW(fmt_t12oos99, out), "Expected output string \"test%%1%%2!*.*s!%%99\", got %s\n", wine_dbgstr_w(out));
 941
 942     /* Only the "%n", "%r", and "%t" escape sequences are processed. */
 943     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_pctspacedot, 0, 0, out,
 944                          sizeof(out)/sizeof(WCHAR), NULL);
 945     ok(ret == 8, "Expected FormatMessageW to return 8, got %d\n", ret);
 946     ok(!lstrcmpW(fmt_pctspacedot, out), "Expected output string \"%%%%%% %%.%%!\", got %s\n", wine_dbgstr_w(out));
 947
 948     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_nrt, 0, 0, out,
 949                          sizeof(out)/sizeof(WCHAR), NULL);
 950     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 951     ok(!lstrcmpW(s_nrt, out), "Expected output string \"\\r\\n\\r\\t\", got %s\n", wine_dbgstr_w(out));
 952
 953     /* CRLF characters are processed normally. */
 954     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_hi_lf, 0, 0, out,
 955                          sizeof(out)/sizeof(WCHAR), NULL);
 956     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 957     ok(!lstrcmpW(s_hi_crlf, out), "Expected output string \"hi\\r\\n\", got %s\n", wine_dbgstr_w(out));
 958
 959     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_hi_crlf, 0, 0, out,
 960                          sizeof(out)/sizeof(WCHAR), NULL);
 961     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 962     ok(!lstrcmpW(s_hi_crlf, out), "Expected output string \"hi\\r\\n\", got %s\n", wine_dbgstr_w(out));
 963
 964     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_cr, 0, 0, out,
 965                          sizeof(out)/sizeof(WCHAR), NULL);
 966     ok(ret == 2, "Expected FormatMessageW to return 2, got %d\n", ret);
 967     ok(!lstrcmpW(s_crlf, out), "Expected output string \"\\r\\n\", got %s\n", wine_dbgstr_w(out));
 968
 969     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS, fmt_crcrlf, 0, 0, out,
 970                          sizeof(out)/sizeof(WCHAR), NULL);
 971     ok(ret == 4, "Expected FormatMessageW to return 4, got %d\n", ret);
 972     ok(!lstrcmpW(s_crlfcrlf, out), "Expected output string \"\\r\\n\\r\\n\", got %s\n", wine_dbgstr_w(out));
 973
 974     /* The width parameter is handled the same also. */
 975     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 976                          FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_hi_lf, 0, 0, out,
 977                          sizeof(out)/sizeof(WCHAR), NULL);
 978     ok(ret == 3, "Expected FormatMessageW to return 3, got %d\n", ret);
 979     ok(!lstrcmpW(s_hi_sp, out), "Expected output string \"hi \", got %s\n", wine_dbgstr_w(out));
 980
 981     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 982                          FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_hi_crlf, 0, 0, out,
 983                          sizeof(out)/sizeof(WCHAR), NULL);
 984     ok(ret == 3, "Expected FormatMessageW to return 3, got %d\n", ret);
 985     ok(!lstrcmpW(s_hi_sp, out), "Expected output string \"hi \", got %s\n", wine_dbgstr_w(out));
 986
 987     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 988                          FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_cr, 0, 0, out,
 989                          sizeof(out)/sizeof(WCHAR), NULL);
 990     ok(ret == 1, "Expected FormatMessageW to return 1, got %d\n", ret);
 991     ok(!lstrcmpW(s_sp, out), "Expected output string \" \", got %s\n", wine_dbgstr_w(out));
 992
 993     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_IGNORE_INSERTS |
 994                          FORMAT_MESSAGE_MAX_WIDTH_MASK, fmt_crcrlf, 0, 0, out,
 995                          sizeof(out)/sizeof(WCHAR), NULL);
 996     ok(ret == 2, "Expected FormatMessageW to return 2, got %d\n", ret);
 997     ok(!lstrcmpW(s_2sp, out), "Expected output string \"  \", got %s\n", wine_dbgstr_w(out));
 998 }
 999
1000 static void test_message_insufficient_buffer(void)
1001 {
1002     static const char init_buf[] = {'x', 'x', 'x', 'x', 'x'};
1003     static const char expected_buf[] = {'x', 'x', 'x', 'x', 'x'};
1004     DWORD ret;
1005     CHAR out[5];
1006
1007     SetLastError(0xdeadbeef);
1008     memcpy(out, init_buf, sizeof(init_buf));
1009     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test", 0, 0, out, 0, NULL);
1010     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1011     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1012        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1013        GetLastError());
1014     ok(!memcmp(expected_buf, out, sizeof(expected_buf)),
1015        "Expected the buffer to be untouched\n");
1016
1017     SetLastError(0xdeadbeef);
1018     memcpy(out, init_buf, sizeof(init_buf));
1019     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test", 0, 0, out, 1, NULL);
1020     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1021     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1022        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1023        GetLastError());
1024     ok(!memcmp(expected_buf, out, sizeof(expected_buf)),
1025        "Expected the buffer to be untouched\n");
1026
1027     SetLastError(0xdeadbeef);
1028     memcpy(out, init_buf, sizeof(init_buf));
1029     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING, "test", 0, 0, out, sizeof(out)/sizeof(out[0]) - 1, NULL);
1030     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1031     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1032        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1033        GetLastError());
1034     ok(!memcmp(expected_buf, out, sizeof(expected_buf)),
1035        "Expected the buffer to be untouched\n");
1036 }
1037
1038 static void test_message_insufficient_buffer_wide(void)
1039 {
1040     static const WCHAR test[] = {'t','e','s','t',0};
1041     static const WCHAR init_buf[] = {'x', 'x', 'x', 'x', 'x'};
1042     static const WCHAR expected_buf[] = {'x', 'x', 'x', 'x', 'x'};
1043     static const WCHAR broken_buf[] = {0, 'x', 'x', 'x', 'x'};
1044     static const WCHAR broken2_buf[] = {'t','e','s',0,'x'};
1045
1046     DWORD ret;
1047     WCHAR out[5];
1048
1049     SetLastError(0xdeadbeef);
1050     memcpy(out, init_buf, sizeof(init_buf));
1051     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, test, 0, 0, out, 0, NULL);
1052     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1053     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1054        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1055        GetLastError());
1056     ok(!memcmp(expected_buf, out, sizeof(expected_buf)),
1057        "Expected the buffer to be untouched\n");
1058
1059     /* Windows Server 2003 and newer report failure but copy a
1060      * truncated string to the buffer for non-zero buffer sizes. */
1061     SetLastError(0xdeadbeef);
1062     memcpy(out, init_buf, sizeof(init_buf));
1063     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, test, 0, 0, out, 1, NULL);
1064     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1065     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1066        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1067        GetLastError());
1068     ok(!memcmp(expected_buf, out, sizeof(expected_buf)) ||
1069        broken(!memcmp(broken_buf, out, sizeof(broken_buf))), /* W2K3+ */
1070        "Expected the buffer to be untouched\n");
1071
1072     SetLastError(0xdeadbeef);
1073     memcpy(out, init_buf, sizeof(init_buf));
1074     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, test, 0, 0, out, sizeof(out)/sizeof(out[0]) - 1, NULL);
1075     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1076     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER,
1077        "Expected GetLastError() to return ERROR_INSUFFICIENT_BUFFER, got %u\n",
1078        GetLastError());
1079     ok(!memcmp(expected_buf, out, sizeof(expected_buf)) ||
1080        broken(!memcmp(broken2_buf, out, sizeof(broken2_buf))), /* W2K3+ */
1081        "Expected the buffer to be untouched\n");
1082 }
1083
1084 static void test_message_null_buffer(void)
1085 {
1086     DWORD ret, error;
1087
1088     /* Without FORMAT_MESSAGE_ALLOCATE_BUFFER, only the specified buffer size is checked. */
1089     SetLastError(0xdeadbeef);
1090     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 0, NULL);
1091     error = GetLastError();
1092     ok(!ret, "FormatMessageA returned %u\n", ret);
1093     ok(error == ERROR_INSUFFICIENT_BUFFER, "last error %u\n", error);
1094
1095     SetLastError(0xdeadbeef);
1096     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 1, NULL);
1097     error = GetLastError();
1098     ok(!ret, "FormatMessageA returned %u\n", ret);
1099     ok(error == ERROR_INSUFFICIENT_BUFFER, "last error %u\n", error);
1100
1101     if (0) /* crashes on Windows */
1102     {
1103         SetLastError(0xdeadbeef);
1104         FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 256, NULL);
1105     }
1106
1107     SetLastError(0xdeadbeef);
1108     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 0, NULL);
1109     error = GetLastError();
1110     ok(!ret, "FormatMessageA returned %u\n", ret);
1111     ok(error == ERROR_NOT_ENOUGH_MEMORY, "last error %u\n", error);
1112
1113     SetLastError(0xdeadbeef);
1114     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 1, NULL);
1115     error = GetLastError();
1116     ok(!ret, "FormatMessageA returned %u\n", ret);
1117     ok(error == ERROR_NOT_ENOUGH_MEMORY, "last error %u\n", error);
1118
1119     SetLastError(0xdeadbeef);
1120     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 256, NULL);
1121     error = GetLastError();
1122     ok(!ret, "FormatMessageA returned %u\n", ret);
1123     ok(error == ERROR_NOT_ENOUGH_MEMORY, "last error %u\n", error);
1124 }
1125
1126 static void test_message_null_buffer_wide(void)
1127 {
1128     DWORD ret, error;
1129
1130     SetLastError(0xdeadbeef);
1131     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 0, NULL);
1132     error = GetLastError();
1133     ok(!ret, "FormatMessageW returned %u\n", ret);
1134     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1135
1136     SetLastError(0xdeadbeef);
1137     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 1, NULL);
1138     error = GetLastError();
1139     ok(!ret, "FormatMessageW returned %u\n", ret);
1140     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1141
1142     SetLastError(0xdeadbeef);
1143     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM, NULL, 0, 0, NULL, 256, NULL);
1144     error = GetLastError();
1145     ok(!ret, "FormatMessageW returned %u\n", ret);
1146     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1147
1148     SetLastError(0xdeadbeef);
1149     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 0, NULL);
1150     error = GetLastError();
1151     ok(!ret, "FormatMessageW returned %u\n", ret);
1152     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1153
1154     SetLastError(0xdeadbeef);
1155     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 1, NULL);
1156     error = GetLastError();
1157     ok(!ret, "FormatMessageW returned %u\n", ret);
1158     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1159
1160     SetLastError(0xdeadbeef);
1161     ret = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, 0, 0, NULL, 256, NULL);
1162     error = GetLastError();
1163     ok(!ret, "FormatMessageW returned %u\n", ret);
1164     ok(error == ERROR_INVALID_PARAMETER, "last error %u\n", error);
1165 }
1166
1167 static void test_message_allocate_buffer(void)
1168 {
1169     DWORD ret;
1170     char *buf;
1171
1172     /* While MSDN suggests that FormatMessageA allocates a buffer whose size is
1173      * the larger of the output string and the requested buffer size, the tests
1174      * will not try to determine the actual size of the buffer allocated, as
1175      * the return value of LocalSize cannot be trusted for the purpose, and it should
1176      * in any case be safe for FormatMessageA to allocate in the manner that
1177      * MSDN suggests. */
1178
1179     SetLastError(0xdeadbeef);
1180     buf = (char *)0xdeadbeef;
1181     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1182                          "", 0, 0, (char *)&buf, 0, NULL);
1183     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1184     ok(buf == NULL, "Expected output buffer pointer to be NULL\n");
1185     ok(GetLastError() == 0xdeadbeef,
1186        "Expected last error to be untouched, got %u\n", GetLastError());
1187
1188     buf = (char *)0xdeadbeef;
1189     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1190                          "test", 0, 0, (char *)&buf, 0, NULL);
1191     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1192     ok(buf != NULL && buf != (char *)0xdeadbeef,
1193        "Expected output buffer pointer to be valid\n");
1194     if (buf != NULL && buf != (char *)0xdeadbeef)
1195     {
1196         ok(!strcmp("test", buf),
1197            "Expected buffer to contain \"test\", got %s\n", buf);
1198         LocalFree(buf);
1199     }
1200
1201     buf = (char *)0xdeadbeef;
1202     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1203                          "test", 0, 0, (char *)&buf, strlen("test"), NULL);
1204     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1205     ok(buf != NULL && buf != (char *)0xdeadbeef,
1206        "Expected output buffer pointer to be valid\n");
1207     if (buf != NULL && buf != (char *)0xdeadbeef)
1208     {
1209         ok(!strcmp("test", buf),
1210            "Expected buffer to contain \"test\", got %s\n", buf);
1211         LocalFree(buf);
1212     }
1213
1214     buf = (char *)0xdeadbeef;
1215     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1216                          "test", 0, 0, (char *)&buf, strlen("test") + 1, NULL);
1217     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1218     ok(buf != NULL && buf != (char *)0xdeadbeef,
1219        "Expected output buffer pointer to be valid\n");
1220    if (buf != NULL && buf != (char *)0xdeadbeef)
1221     {
1222         ok(!strcmp("test", buf),
1223            "Expected buffer to contain \"test\", got %s\n", buf);
1224         LocalFree(buf);
1225     }
1226
1227     buf = (char *)0xdeadbeef;
1228     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1229                          "test", 0, 0, (char *)&buf, strlen("test") + 2, NULL);
1230     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1231     ok(buf != NULL && buf != (char *)0xdeadbeef,
1232        "Expected output buffer pointer to be valid\n");
1233     if (buf != NULL && buf != (char *)0xdeadbeef)
1234     {
1235         ok(!strcmp("test", buf),
1236            "Expected buffer to contain \"test\", got %s\n", buf);
1237         LocalFree(buf);
1238     }
1239
1240     buf = (char *)0xdeadbeef;
1241     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1242                          "test", 0, 0, (char *)&buf, 1024, NULL);
1243     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1244     ok(buf != NULL && buf != (char *)0xdeadbeef,
1245        "Expected output buffer pointer to be valid\n");
1246     if (buf != NULL && buf != (char *)0xdeadbeef)
1247     {
1248         ok(!strcmp("test", buf),
1249            "Expected buffer to contain \"test\", got %s\n", buf);
1250         LocalFree(buf);
1251     }
1252 }
1253
1254 static void test_message_allocate_buffer_wide(void)
1255 {
1256     static const WCHAR empty[] = {0};
1257     static const WCHAR test[] = {'t','e','s','t',0};
1258
1259     DWORD ret;
1260     WCHAR *buf;
1261
1262     /* While MSDN suggests that FormatMessageW allocates a buffer whose size is
1263      * the larger of the output string and the requested buffer size, the tests
1264      * will not try to determine the actual size of the buffer allocated, as
1265      * the return value of LocalSize cannot be trusted for the purpose, and it should
1266      * in any case be safe for FormatMessageW to allocate in the manner that
1267      * MSDN suggests. */
1268
1269     if (0) /* crashes on Windows */
1270     {
1271         buf = (WCHAR *)0xdeadbeef;
1272         FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1273                              NULL, 0, 0, (WCHAR *)&buf, 0, NULL);
1274     }
1275
1276     SetLastError(0xdeadbeef);
1277     buf = (WCHAR *)0xdeadbeef;
1278     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1279                          empty, 0, 0, (WCHAR *)&buf, 0, NULL);
1280     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1281     ok(buf == NULL, "Expected output buffer pointer to be NULL\n");
1282     ok(GetLastError() == 0xdeadbeef,
1283        "Expected last error to be untouched, got %u\n", GetLastError());
1284
1285     buf = (WCHAR *)0xdeadbeef;
1286     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1287                          test, 0, 0, (WCHAR *)&buf, 0, NULL);
1288     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1289     ok(buf != NULL && buf != (WCHAR *)0xdeadbeef,
1290        "Expected output buffer pointer to be valid\n");
1291     if (buf != NULL && buf != (WCHAR *)0xdeadbeef)
1292     {
1293         ok(!lstrcmpW(test, buf),
1294            "Expected buffer to contain \"test\", got %s\n", wine_dbgstr_w(buf));
1295         LocalFree(buf);
1296     }
1297
1298     buf = (WCHAR *)0xdeadbeef;
1299     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1300                          test, 0, 0, (WCHAR *)&buf, sizeof(test)/sizeof(WCHAR) - 1, NULL);
1301     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1302     ok(buf != NULL && buf != (WCHAR *)0xdeadbeef,
1303        "Expected output buffer pointer to be valid\n");
1304     if (buf != NULL && buf != (WCHAR *)0xdeadbeef)
1305     {
1306         ok(!lstrcmpW(test, buf),
1307            "Expected buffer to contain \"test\", got %s\n", wine_dbgstr_w(buf));
1308         LocalFree(buf);
1309     }
1310
1311     buf = (WCHAR *)0xdeadbeef;
1312     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1313                          test, 0, 0, (WCHAR *)&buf, sizeof(test)/sizeof(WCHAR), NULL);
1314     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1315     ok(buf != NULL && buf != (WCHAR *)0xdeadbeef,
1316        "Expected output buffer pointer to be valid\n");
1317     if (buf != NULL && buf != (WCHAR *)0xdeadbeef)
1318     {
1319         ok(!lstrcmpW(test, buf),
1320            "Expected buffer to contain \"test\", got %s\n", wine_dbgstr_w(buf));
1321         LocalFree(buf);
1322     }
1323
1324     buf = (WCHAR *)0xdeadbeef;
1325     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1326                          test, 0, 0, (WCHAR *)&buf, sizeof(test)/sizeof(WCHAR) + 1, NULL);
1327     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1328     ok(buf != NULL && buf != (WCHAR *)0xdeadbeef,
1329        "Expected output buffer pointer to be valid\n");
1330     if (buf != NULL && buf != (WCHAR *)0xdeadbeef)
1331     {
1332         ok(!lstrcmpW(test, buf),
1333            "Expected buffer to contain \"test\", got %s\n", wine_dbgstr_w(buf));
1334         LocalFree(buf);
1335     }
1336
1337     buf = (WCHAR *)0xdeadbeef;
1338     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
1339                          test, 0, 0, (WCHAR *)&buf, 1024, NULL);
1340     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1341     ok(buf != NULL && buf != (WCHAR *)0xdeadbeef,
1342        "Expected output buffer pointer to be valid\n");
1343     if (buf != NULL && buf != (WCHAR *)0xdeadbeef)
1344     {
1345         ok(!lstrcmpW(test, buf),
1346            "Expected buffer to contain \"test\", got %s\n", wine_dbgstr_w(buf));
1347         LocalFree(buf);
1348     }
1349 }
1350
1351 static void test_message_from_hmodule(void)
1352 {
1353     DWORD ret, error;
1354     HMODULE h;
1355     CHAR out[0x100] = {0};
1356
1357     h = GetModuleHandle("kernel32.dll");
1358     ok(h != 0, "GetModuleHandle failed\n");
1359
1360     /*Test existing messageID; as the message strings from wine's kernel32 differ from windows' kernel32 we don't compare
1361     the strings but only test that FormatMessage doesn't return 0*/
1362     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 7/*=ERROR_ARENA_TRASHED*/,
1363                          MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), out, sizeof(out)/sizeof(CHAR), NULL);
1364     ok(ret != 0, "FormatMessageA returned 0\n");
1365
1366     /* Test a message string with an insertion without passing any variadic arguments. */
1367     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 193 /* ERROR_BAD_EXE_FORMAT */,
1368                          MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), out, sizeof(out)/sizeof(CHAR), NULL);
1369     ok(ret == 0, "FormatMessageA returned non-zero\n");
1370
1371     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE |
1372                          FORMAT_MESSAGE_ARGUMENT_ARRAY, h, 193 /* ERROR_BAD_EXE_FORMAT */,
1373                          MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), out, sizeof(out)/sizeof(CHAR), NULL);
1374     ok(ret == 0, "FormatMessageA returned non-zero\n");
1375
1376     /*Test nonexistent messageID with varying language IDs Note: FormatMessageW behaves the same*/
1377     SetLastError(0xdeadbeef);
1378     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 3044,
1379                          MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), out, sizeof(out)/sizeof(CHAR), NULL);
1380     error = GetLastError();
1381     ok(ret == 0, "FormatMessageA returned %u instead of 0\n", ret);
1382     ok(error == ERROR_MR_MID_NOT_FOUND || error == ERROR_MUI_FILE_NOT_FOUND, "last error %u\n", error);
1383
1384     SetLastError(0xdeadbeef);
1385     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 3044,
1386                          MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), out, sizeof(out)/sizeof(CHAR), NULL);
1387     error = GetLastError();
1388     ok(ret == 0, "FormatMessageA returned %u instead of 0\n", ret);
1389     ok(error == ERROR_MR_MID_NOT_FOUND || error == ERROR_MUI_FILE_NOT_LOADED, "last error %u\n", error);
1390
1391     SetLastError(0xdeadbeef);
1392     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 3044,
1393                          MAKELANGID(LANG_NEUTRAL, SUBLANG_SYS_DEFAULT), out, sizeof(out)/sizeof(CHAR), NULL);
1394     error = GetLastError();
1395     ok(ret == 0, "FormatMessageA returned %u instead of 0\n", ret);
1396     ok(error == ERROR_MR_MID_NOT_FOUND || error == ERROR_MUI_FILE_NOT_LOADED, "last error %u\n", error);
1397
1398     SetLastError(0xdeadbeef);
1399     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 3044,
1400                          MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), out, sizeof(out)/sizeof(CHAR), NULL);
1401     error = GetLastError();
1402     ok(ret == 0, "FormatMessageA returned %u instead of 0\n", ret);
1403     ok(error == ERROR_RESOURCE_LANG_NOT_FOUND ||
1404        error == ERROR_MR_MID_NOT_FOUND ||
1405        error == ERROR_MUI_FILE_NOT_FOUND ||
1406        error == ERROR_MUI_FILE_NOT_LOADED,
1407        "last error %u\n", error);
1408
1409     SetLastError(0xdeadbeef);
1410     ret = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE, h, 3044,
1411                          MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_UK), out, sizeof(out)/sizeof(CHAR), NULL);
1412     error = GetLastError();
1413     ok(ret == 0, "FormatMessageA returned %u instead of 0\n", ret);
1414     ok(error == ERROR_RESOURCE_LANG_NOT_FOUND ||
1415        error == ERROR_MR_MID_NOT_FOUND ||
1416        error == ERROR_MUI_FILE_NOT_FOUND ||
1417        error == ERROR_MUI_FILE_NOT_LOADED,
1418        "last error %u\n", error);
1419 }
1420
1421 static void test_message_invalid_flags(void)
1422 {
1423     static const char init_buf[] = {'x', 'x', 'x', 'x', 'x'};
1424
1425     DWORD ret;
1426     CHAR out[5];
1427     char *ptr;
1428
1429     SetLastError(0xdeadbeef);
1430     memcpy(out, init_buf, sizeof(init_buf));
1431     ret = FormatMessageA(0, "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1432     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1433     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1434        "Expected the output buffer to be untouched\n");
1435     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1436        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1437        GetLastError());
1438
1439     SetLastError(0xdeadbeef);
1440     ptr = (char *)0xdeadbeef;
1441     ret = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER, "test", 0, 0, (char *)&ptr, 0, NULL);
1442     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1443     ok(ptr == NULL, "Expected output pointer to be initialized to NULL, got %p\n", ptr);
1444     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1445        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1446        GetLastError());
1447
1448     SetLastError(0xdeadbeef);
1449     memcpy(out, init_buf, sizeof(init_buf));
1450     ret = FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS, "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1451     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1452     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1453        "Expected the output buffer to be untouched\n");
1454     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1455        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1456        GetLastError());
1457
1458     SetLastError(0xdeadbeef);
1459     memcpy(out, init_buf, sizeof(init_buf));
1460     ret = FormatMessageA(FORMAT_MESSAGE_ARGUMENT_ARRAY, "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1461     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1462     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1463        "Expected the output buffer to be untouched\n");
1464     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1465        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1466        GetLastError());
1467
1468     SetLastError(0xdeadbeef);
1469     memcpy(out, init_buf, sizeof(init_buf));
1470     ret = FormatMessageA(FORMAT_MESSAGE_MAX_WIDTH_MASK, "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1471     ok(ret == 0, "Expected FormatMessageA to return 0, got %u\n", ret);
1472     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1473        "Expected the output buffer to be untouched\n");
1474     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1475        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1476        GetLastError());
1477
1478     /* Simultaneously setting FORMAT_MESSAGE_FROM_STRING with other source
1479      * flags is apparently permissible, and FORMAT_MESSAGE_FROM_STRING takes
1480      * precedence in this case. */
1481
1482     memcpy(out, init_buf, sizeof(init_buf));
1483     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_SYSTEM,
1484                          "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1485     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1486     ok(!strcmp("test", out),
1487        "Expected the output buffer to be untouched\n");
1488
1489     memcpy(out, init_buf, sizeof(init_buf));
1490     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_HMODULE,
1491                          "test", 0, 0, out, sizeof(out)/sizeof(CHAR), NULL);
1492     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1493     ok(!strcmp("test", out),
1494        "Expected the output buffer to be untouched\n");
1495
1496     memcpy(out, init_buf, sizeof(init_buf));
1497     ret = FormatMessageA(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_HMODULE |
1498                          FORMAT_MESSAGE_FROM_SYSTEM, "test", 0, 0, out,
1499                          sizeof(out)/sizeof(CHAR), NULL);
1500     ok(ret == 4, "Expected FormatMessageA to return 4, got %u\n", ret);
1501     ok(!strcmp("test", out),
1502        "Expected the output buffer to be untouched\n");
1503 }
1504
1505 static void test_message_invalid_flags_wide(void)
1506 {
1507     static const WCHAR init_buf[] = {'x', 'x', 'x', 'x', 'x'};
1508     static const WCHAR test[] = {'t','e','s','t',0};
1509
1510     DWORD ret;
1511     WCHAR out[5];
1512     WCHAR *ptr;
1513
1514     SetLastError(0xdeadbeef);
1515     memcpy(out, init_buf, sizeof(init_buf));
1516     ret = FormatMessageW(0, test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1517     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1518     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1519        "Expected the output buffer to be untouched\n");
1520     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1521        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1522        GetLastError());
1523
1524     SetLastError(0xdeadbeef);
1525     ptr = (WCHAR *)0xdeadbeef;
1526     ret = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER, test, 0, 0, (WCHAR *)&ptr, 0, NULL);
1527     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1528     ok(ptr == NULL, "Expected output pointer to be initialized to NULL, got %p\n", ptr);
1529     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1530        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1531        GetLastError());
1532
1533     SetLastError(0xdeadbeef);
1534     memcpy(out, init_buf, sizeof(init_buf));
1535     ret = FormatMessageW(FORMAT_MESSAGE_IGNORE_INSERTS, test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1536     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1537     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1538        "Expected the output buffer to be untouched\n");
1539     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1540        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1541        GetLastError());
1542
1543     SetLastError(0xdeadbeef);
1544     memcpy(out, init_buf, sizeof(init_buf));
1545     ret = FormatMessageW(FORMAT_MESSAGE_ARGUMENT_ARRAY, test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1546     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1547     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1548        "Expected the output buffer to be untouched\n");
1549     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1550        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1551        GetLastError());
1552
1553     SetLastError(0xdeadbeef);
1554     memcpy(out, init_buf, sizeof(init_buf));
1555     ret = FormatMessageW(FORMAT_MESSAGE_MAX_WIDTH_MASK, test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1556     ok(ret == 0, "Expected FormatMessageW to return 0, got %u\n", ret);
1557     ok(!memcmp(out, init_buf, sizeof(init_buf)),
1558        "Expected the output buffer to be untouched\n");
1559     ok(GetLastError() == ERROR_INVALID_PARAMETER,
1560        "Expected GetLastError() to return ERROR_INVALID_PARAMETER, got %u\n",
1561        GetLastError());
1562
1563     /* Simultaneously setting FORMAT_MESSAGE_FROM_STRING with other source
1564      * flags is apparently permissible, and FORMAT_MESSAGE_FROM_STRING takes
1565      * precedence in this case. */
1566
1567     memcpy(out, init_buf, sizeof(init_buf));
1568     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_SYSTEM,
1569                          test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1570     ok(ret == 4, "Expected FormatMessageW to return 4, got %u\n", ret);
1571     ok(!lstrcmpW(test, out),
1572        "Expected the output buffer to be untouched\n");
1573
1574     memcpy(out, init_buf, sizeof(init_buf));
1575     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_HMODULE,
1576                          test, 0, 0, out, sizeof(out)/sizeof(WCHAR), NULL);
1577     ok(ret == 4, "Expected FormatMessageW to return 4, got %u\n", ret);
1578     ok(!lstrcmpW(test, out),
1579        "Expected the output buffer to be untouched\n");
1580
1581     memcpy(out, init_buf, sizeof(init_buf));
1582     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_FROM_HMODULE |
1583                          FORMAT_MESSAGE_FROM_SYSTEM, test, 0, 0, out,
1584                          sizeof(out)/sizeof(WCHAR), NULL);
1585     ok(ret == 4, "Expected FormatMessageW to return 4, got %u\n", ret);
1586     ok(!lstrcmpW(test, out),
1587        "Expected the output buffer to be untouched\n");
1588 }
1589
1590 START_TEST(format_msg)
1591 {
1592     DWORD ret;
1593
1594     test_message_from_string();
1595     test_message_ignore_inserts();
1596     test_message_insufficient_buffer();
1597     test_message_null_buffer();
1598     test_message_allocate_buffer();
1599     test_message_from_hmodule();
1600     test_message_invalid_flags();
1601
1602     SetLastError(0xdeadbeef);
1603     ret = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, NULL, 0, 0, NULL, 0, NULL);
1604     if (!ret && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
1605     {
1606         win_skip("FormatMessageW is not implemented\n");
1607         return;
1608     }
1609
1610     test_message_from_string_wide();
1611     test_message_ignore_inserts_wide();
1612     test_message_insufficient_buffer_wide();
1613     test_message_null_buffer_wide();
1614     test_message_allocate_buffer_wide();
1615     test_message_invalid_flags_wide();
1616 }