dlls/dxdiagn/tests/container.c

   1 /*
   2  * Unit tests for IDxDiagContainer
   3  *
   4  * Copyright 2010 Andrew Nguyen
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdio.h>
  24 #include "dxdiag.h"
  25 #include "oleauto.h"
  26 #include "wine/test.h"
  27
  28 struct property_test
  29 {
  30     const WCHAR *prop;
  31     VARTYPE vt;
  32 };
  33
  34 static IDxDiagProvider *pddp;
  35 static IDxDiagContainer *pddc;
  36
  37 static const WCHAR DxDiag_SystemInfo[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','I','n','f','o',0};
  38 static const WCHAR DxDiag_DisplayDevices[] = {'D','x','D','i','a','g','_','D','i','s','p','l','a','y','D','e','v','i','c','e','s',0};
  39
  40 /* Based on debugstr_variant in dlls/jscript/jsutils.c. */
  41 static const char *debugstr_variant(const VARIANT *var)
  42 {
  43     static char buf[400];
  44
  45     if (!var)
  46         return "(null)";
  47
  48     switch (V_VT(var))
  49     {
  50     case VT_EMPTY:
  51         return "{VT_EMPTY}";
  52     case VT_BSTR:
  53         sprintf(buf, "{VT_BSTR: %s}", wine_dbgstr_w(V_BSTR(var)));
  54         break;
  55     case VT_BOOL:
  56         sprintf(buf, "{VT_BOOL: %x}", V_BOOL(var));
  57         break;
  58     case VT_UI4:
  59         sprintf(buf, "{VT_UI4: %u}", V_UI4(var));
  60         break;
  61     default:
  62         sprintf(buf, "{vt %d}", V_VT(var));
  63         break;
  64     }
  65
  66     return buf;
  67 }
  68
  69 static BOOL create_root_IDxDiagContainer(void)
  70 {
  71     HRESULT hr;
  72     DXDIAG_INIT_PARAMS params;
  73
  74     hr = CoCreateInstance(&CLSID_DxDiagProvider, NULL, CLSCTX_INPROC_SERVER,
  75                           &IID_IDxDiagProvider, (LPVOID*)&pddp);
  76     if (SUCCEEDED(hr))
  77     {
  78         params.dwSize = sizeof(params);
  79         params.dwDxDiagHeaderVersion = DXDIAG_DX9_SDK_VERSION;
  80         params.bAllowWHQLChecks = FALSE;
  81         params.pReserved = NULL;
  82         hr = IDxDiagProvider_Initialize(pddp, &params);
  83         if (SUCCEEDED(hr))
  84         {
  85             hr = IDxDiagProvider_GetRootContainer(pddp, &pddc);
  86             if (SUCCEEDED(hr))
  87                 return TRUE;
  88         }
  89         IDxDiagProvider_Release(pddp);
  90     }
  91     return FALSE;
  92 }
  93
  94 static void test_GetNumberOfChildContainers(void)
  95 {
  96     HRESULT hr;
  97     DWORD count;
  98
  99     if (!create_root_IDxDiagContainer())
 100     {
 101         skip("Unable to create the root IDxDiagContainer\n");
 102         return;
 103     }
 104
 105     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, NULL);
 106     ok(hr == E_INVALIDARG,
 107        "Expected IDxDiagContainer::GetNumberOfChildContainers to return E_INVALIDARG, got 0x%08x\n", hr);
 108
 109     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 110     ok(hr == S_OK,
 111        "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 112     if (hr == S_OK)
 113         ok(count != 0, "Expected the number of child containers for the root container to be non-zero\n");
 114
 115     IDxDiagContainer_Release(pddc);
 116     IDxDiagProvider_Release(pddp);
 117 }
 118
 119 static void test_GetNumberOfProps(void)
 120 {
 121     HRESULT hr;
 122     DWORD count;
 123
 124     if (!create_root_IDxDiagContainer())
 125     {
 126         skip("Unable to create the root IDxDiagContainer\n");
 127         return;
 128     }
 129
 130     hr = IDxDiagContainer_GetNumberOfProps(pddc, NULL);
 131     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetNumberOfProps to return E_INVALIDARG, got 0x%08x\n", hr);
 132
 133     hr = IDxDiagContainer_GetNumberOfProps(pddc, &count);
 134     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
 135     if (hr == S_OK)
 136         ok(count == 0, "Expected the number of properties for the root container to be zero\n");
 137
 138     IDxDiagContainer_Release(pddc);
 139     IDxDiagProvider_Release(pddp);
 140 }
 141
 142 static void test_EnumChildContainerNames(void)
 143 {
 144     HRESULT hr;
 145     WCHAR container[256];
 146     DWORD maxcount, index;
 147     static const WCHAR testW[] = {'t','e','s','t',0};
 148     static const WCHAR zerotestW[] = {0,'e','s','t',0};
 149
 150     if (!create_root_IDxDiagContainer())
 151     {
 152         skip("Unable to create the root IDxDiagContainer\n");
 153         return;
 154     }
 155
 156     /* Test various combinations of invalid parameters. */
 157     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, NULL, 0);
 158     ok(hr == E_INVALIDARG,
 159        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 160
 161     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, NULL, sizeof(container)/sizeof(WCHAR));
 162     ok(hr == E_INVALIDARG,
 163        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 164
 165     /* Test the conditions in which the output buffer can be modified. */
 166     memcpy(container, testW, sizeof(testW));
 167     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, container, 0);
 168     ok(hr == E_INVALIDARG,
 169        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 170     ok(!memcmp(container, testW, sizeof(testW)),
 171        "Expected the container buffer to be untouched, got %s\n", wine_dbgstr_w(container));
 172
 173     memcpy(container, testW, sizeof(testW));
 174     hr = IDxDiagContainer_EnumChildContainerNames(pddc, ~0, container, 0);
 175     ok(hr == E_INVALIDARG,
 176        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 177     ok(!memcmp(container, testW, sizeof(testW)),
 178        "Expected the container buffer to be untouched, got %s\n", wine_dbgstr_w(container));
 179
 180     memcpy(container, testW, sizeof(testW));
 181     hr = IDxDiagContainer_EnumChildContainerNames(pddc, ~0, container, sizeof(container)/sizeof(WCHAR));
 182     ok(hr == E_INVALIDARG,
 183        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 184     ok(!memcmp(container, zerotestW, sizeof(zerotestW)),
 185        "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 186
 187     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &maxcount);
 188     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 189     if (FAILED(hr))
 190     {
 191         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 192         goto cleanup;
 193     }
 194
 195     trace("Starting child container enumeration of the root container:\n");
 196
 197     /* We should be able to enumerate as many child containers as the value
 198      * that IDxDiagContainer::GetNumberOfChildContainers returns. */
 199     for (index = 0; index <= maxcount; index++)
 200     {
 201         /* A buffer size of 1 is unlikely to be valid, as only a null terminator
 202          * could be stored, and it is unlikely that a container name could be empty. */
 203         DWORD buffersize = 1;
 204         memcpy(container, testW, sizeof(testW));
 205         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, buffersize);
 206         if (hr == E_INVALIDARG)
 207         {
 208             /* We should get here when index is one more than the maximum index value. */
 209             ok(maxcount == index,
 210                "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG "
 211                "on the last index %d, got 0x%08x\n", index, hr);
 212             ok(container[0] == '\0',
 213                "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 214             break;
 215         }
 216         else if (hr == DXDIAG_E_INSUFFICIENT_BUFFER)
 217         {
 218             WCHAR temp[256];
 219
 220             ok(container[0] == '\0',
 221                "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 222
 223             /* Get the container name to compare against. */
 224             hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, temp, sizeof(temp)/sizeof(WCHAR));
 225             ok(hr == S_OK,
 226                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 227
 228             /* Show that the DirectX SDK's stipulation that the buffer be at
 229              * least 256 characters long is a mere suggestion, and smaller sizes
 230              * can be acceptable also. IDxDiagContainer::EnumChildContainerNames
 231              * doesn't provide a way of getting the exact size required, so the
 232              * buffersize value will be iterated to at most 256 characters. */
 233             for (buffersize = 2; buffersize <= 256; buffersize++)
 234             {
 235                 memcpy(container, testW, sizeof(testW));
 236                 hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, buffersize);
 237                 if (hr != DXDIAG_E_INSUFFICIENT_BUFFER)
 238                     break;
 239
 240                 ok(!memcmp(temp, container, sizeof(WCHAR)*(buffersize - 1)),
 241                    "Expected truncated container name string, got %s\n", wine_dbgstr_w(container));
 242             }
 243
 244             ok(hr == S_OK,
 245                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, "
 246                "got hr = 0x%08x, buffersize = %d\n", hr, buffersize);
 247             if (hr == S_OK)
 248                 trace("pddc[%d] = %s, length = %d\n", index, wine_dbgstr_w(container), buffersize);
 249         }
 250         else
 251         {
 252             ok(0, "IDxDiagContainer::EnumChildContainerNames unexpectedly returned 0x%08x\n", hr);
 253             break;
 254         }
 255     }
 256
 257 cleanup:
 258     IDxDiagContainer_Release(pddc);
 259     IDxDiagProvider_Release(pddp);
 260 }
 261
 262 static void test_GetChildContainer(void)
 263 {
 264     HRESULT hr;
 265     WCHAR container[256] = {0};
 266     IDxDiagContainer *child;
 267
 268     if (!create_root_IDxDiagContainer())
 269     {
 270         skip("Unable to create the root IDxDiagContainer\n");
 271         return;
 272     }
 273
 274     /* Test various combinations of invalid parameters. */
 275     hr = IDxDiagContainer_GetChildContainer(pddc, NULL, NULL);
 276     ok(hr == E_INVALIDARG,
 277        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 278
 279     child = (void*)0xdeadbeef;
 280     hr = IDxDiagContainer_GetChildContainer(pddc, NULL, &child);
 281     ok(hr == E_INVALIDARG,
 282        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 283     ok(child == (void*)0xdeadbeef, "Expected output pointer to be unchanged, got %p\n", child);
 284
 285     hr = IDxDiagContainer_GetChildContainer(pddc, container, NULL);
 286     ok(hr == E_INVALIDARG,
 287        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 288
 289     child = (void*)0xdeadbeef;
 290     hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 291     ok(hr == E_INVALIDARG,
 292        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 293     ok(child == NULL, "Expected output pointer to be NULL, got %p\n", child);
 294
 295     /* Get the name of a suitable child container. */
 296     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, container, sizeof(container)/sizeof(WCHAR));
 297     ok(hr == S_OK,
 298        "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 299     if (FAILED(hr))
 300     {
 301         skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 302         goto cleanup;
 303     }
 304
 305     child = (void*)0xdeadbeef;
 306     hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 307     ok(hr == S_OK,
 308        "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 309     ok(child != NULL && child != (void*)0xdeadbeef, "Expected a valid output pointer, got %p\n", child);
 310
 311     if (SUCCEEDED(hr))
 312     {
 313         IDxDiagContainer *ptr;
 314
 315         /* Show that IDxDiagContainer::GetChildContainer returns a different pointer
 316          * for multiple calls for the same container name. */
 317         hr = IDxDiagContainer_GetChildContainer(pddc, container, &ptr);
 318         ok(hr == S_OK,
 319            "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 320         if (SUCCEEDED(hr))
 321             ok(ptr != child, "Expected the two pointers (%p vs. %p) to be unequal\n", child, ptr);
 322
 323         IDxDiagContainer_Release(ptr);
 324         IDxDiagContainer_Release(child);
 325     }
 326
 327 cleanup:
 328     IDxDiagContainer_Release(pddc);
 329     IDxDiagProvider_Release(pddp);
 330 }
 331
 332 static void test_dot_parsing(void)
 333 {
 334     HRESULT hr;
 335     WCHAR containerbufW[256] = {0}, childbufW[256] = {0};
 336     DWORD count, index;
 337     size_t i;
 338     static const struct
 339     {
 340         const char *format;
 341         const HRESULT expect;
 342     } test_strings[] = {
 343         { "%s.%s",   S_OK },
 344         { "%s.%s.",  S_OK },
 345         { ".%s.%s",  E_INVALIDARG },
 346         { "%s.%s..", E_INVALIDARG },
 347         { ".%s.%s.", E_INVALIDARG },
 348         { "..%s.%s", E_INVALIDARG },
 349     };
 350
 351     if (!create_root_IDxDiagContainer())
 352     {
 353         skip("Unable to create the root IDxDiagContainer\n");
 354         return;
 355     }
 356
 357     /* Find a container with a child container of its own. */
 358     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 359     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 360     if (FAILED(hr))
 361     {
 362         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 363         goto cleanup;
 364     }
 365
 366     for (index = 0; index < count; index++)
 367     {
 368         IDxDiagContainer *child;
 369
 370         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, containerbufW, sizeof(containerbufW)/sizeof(WCHAR));
 371         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 372         if (FAILED(hr))
 373         {
 374             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 375             goto cleanup;
 376         }
 377
 378         hr = IDxDiagContainer_GetChildContainer(pddc, containerbufW, &child);
 379         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 380
 381         if (SUCCEEDED(hr))
 382         {
 383             hr = IDxDiagContainer_EnumChildContainerNames(child, 0, childbufW, sizeof(childbufW)/sizeof(WCHAR));
 384             ok(hr == S_OK || hr == E_INVALIDARG,
 385                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK or E_INVALIDARG, got 0x%08x\n", hr);
 386             IDxDiagContainer_Release(child);
 387
 388             if (SUCCEEDED(hr))
 389                 break;
 390         }
 391     }
 392
 393     if (!*containerbufW || !*childbufW)
 394     {
 395         skip("Unable to find a suitable container\n");
 396         goto cleanup;
 397     }
 398
 399     trace("Testing IDxDiagContainer::GetChildContainer dot parsing with container %s and child container %s.\n",
 400           wine_dbgstr_w(containerbufW), wine_dbgstr_w(childbufW));
 401
 402     for (i = 0; i < sizeof(test_strings)/sizeof(test_strings[0]); i++)
 403     {
 404         IDxDiagContainer *child;
 405         char containerbufA[256];
 406         char childbufA[256];
 407         char dotbufferA[255 + 255 + 3 + 1];
 408         WCHAR dotbufferW[255 + 255 + 3 + 1]; /* containerbuf + childbuf + dots + null terminator */
 409
 410         WideCharToMultiByte(CP_ACP, 0, containerbufW, -1, containerbufA, sizeof(containerbufA), NULL, NULL);
 411         WideCharToMultiByte(CP_ACP, 0, childbufW, -1, childbufA, sizeof(childbufA), NULL, NULL);
 412         sprintf(dotbufferA, test_strings[i].format, containerbufA, childbufA);
 413         MultiByteToWideChar(CP_ACP, 0, dotbufferA, -1, dotbufferW, sizeof(dotbufferW)/sizeof(WCHAR));
 414
 415         trace("Trying container name %s\n", wine_dbgstr_w(dotbufferW));
 416         hr = IDxDiagContainer_GetChildContainer(pddc, dotbufferW, &child);
 417         ok(hr == test_strings[i].expect,
 418            "Expected IDxDiagContainer::GetChildContainer to return 0x%08x for %s, got 0x%08x\n",
 419            test_strings[i].expect, wine_dbgstr_w(dotbufferW), hr);
 420         if (SUCCEEDED(hr))
 421             IDxDiagContainer_Release(child);
 422     }
 423
 424 cleanup:
 425     IDxDiagContainer_Release(pddc);
 426     IDxDiagProvider_Release(pddp);
 427 }
 428
 429 static void test_EnumPropNames(void)
 430 {
 431     HRESULT hr;
 432     WCHAR container[256], property[256];
 433     IDxDiagContainer *child = NULL;
 434     DWORD count, index, propcount;
 435     static const WCHAR testW[] = {'t','e','s','t',0};
 436
 437     if (!create_root_IDxDiagContainer())
 438     {
 439         skip("Unable to create the root IDxDiagContainer\n");
 440         return;
 441     }
 442
 443     /* Find a container with a non-zero number of properties. */
 444     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 445     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 446     if (FAILED(hr))
 447     {
 448         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 449         goto cleanup;
 450     }
 451
 452     for (index = 0; index < count; index++)
 453     {
 454         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, sizeof(container)/sizeof(WCHAR));
 455         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 456         if (FAILED(hr))
 457         {
 458             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 459             goto cleanup;
 460         }
 461
 462         hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 463         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 464
 465         if (SUCCEEDED(hr))
 466         {
 467             hr = IDxDiagContainer_GetNumberOfProps(child, &propcount);
 468             ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
 469
 470             if (!propcount)
 471             {
 472                 IDxDiagContainer_Release(child);
 473                 child = NULL;
 474             }
 475             else
 476                 break;
 477         }
 478     }
 479
 480     if (!child)
 481     {
 482         skip("Unable to find a container with non-zero property count\n");
 483         goto cleanup;
 484     }
 485
 486     hr = IDxDiagContainer_EnumPropNames(child, ~0, NULL, 0);
 487     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 488
 489     memcpy(property, testW, sizeof(testW));
 490     hr = IDxDiagContainer_EnumPropNames(child, ~0, property, 0);
 491     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 492     ok(!memcmp(property, testW, sizeof(testW)),
 493        "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 494
 495     memcpy(property, testW, sizeof(testW));
 496     hr = IDxDiagContainer_EnumPropNames(child, ~0, property, sizeof(property)/sizeof(WCHAR));
 497     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 498     ok(!memcmp(property, testW, sizeof(testW)),
 499        "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 500
 501     trace("Starting property enumeration of the %s container:\n", wine_dbgstr_w(container));
 502
 503     /* We should be able to enumerate as many properties as the value that
 504      * IDxDiagContainer::GetNumberOfProps returns. */
 505     for (index = 0; index <= propcount; index++)
 506     {
 507         /* A buffer size of 1 is unlikely to be valid, as only a null terminator
 508          * could be stored, and it is unlikely that a property name could be empty. */
 509         DWORD buffersize = 1;
 510
 511         memcpy(property, testW, sizeof(testW));
 512         hr = IDxDiagContainer_EnumPropNames(child, index, property, buffersize);
 513         if (hr == E_INVALIDARG)
 514         {
 515             /* We should get here when index is one more than the maximum index value. */
 516             ok(propcount == index,
 517                "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG "
 518                "on the last index %d, got 0x%08x\n", index, hr);
 519             ok(!memcmp(property, testW, sizeof(testW)),
 520                "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 521             break;
 522         }
 523         else if (hr == DXDIAG_E_INSUFFICIENT_BUFFER)
 524         {
 525             WCHAR temp[256];
 526
 527             ok(property[0] == '\0',
 528                "Expected the property buffer string to be empty, got %s\n", wine_dbgstr_w(property));
 529             hr = IDxDiagContainer_EnumPropNames(child, index, temp, sizeof(temp)/sizeof(WCHAR));
 530             ok(hr == S_OK,
 531                "Expected IDxDiagContainer::EnumPropNames to return S_OK, got 0x%08x\n", hr);
 532
 533             /* Show that the DirectX SDK's stipulation that the buffer be at
 534              * least 256 characters long is a mere suggestion, and smaller sizes
 535              * can be acceptable also. IDxDiagContainer::EnumPropNames doesn't
 536              * provide a way of getting the exact size required, so the buffersize
 537              * value will be iterated to at most 256 characters. */
 538             for (buffersize = 2; buffersize <= 256; buffersize++)
 539             {
 540                 memcpy(property, testW, sizeof(testW));
 541                 hr = IDxDiagContainer_EnumPropNames(child, index, property, buffersize);
 542                 if (hr != DXDIAG_E_INSUFFICIENT_BUFFER)
 543                     break;
 544
 545                 ok(!memcmp(temp, property, sizeof(WCHAR)*(buffersize - 1)),
 546                    "Expected truncated property name string, got %s\n", wine_dbgstr_w(property));
 547             }
 548
 549             ok(hr == S_OK,
 550                "Expected IDxDiagContainer::EnumPropNames to return S_OK, "
 551                "got hr = 0x%08x, buffersize = %d\n", hr, buffersize);
 552             if (hr == S_OK)
 553                 trace("child[%d] = %s, length = %d\n", index, wine_dbgstr_w(property), buffersize);
 554         }
 555         else
 556         {
 557             ok(0, "IDxDiagContainer::EnumPropNames unexpectedly returned 0x%08x\n", hr);
 558             break;
 559         }
 560     }
 561
 562     IDxDiagContainer_Release(child);
 563
 564 cleanup:
 565     IDxDiagContainer_Release(pddc);
 566     IDxDiagProvider_Release(pddp);
 567 }
 568
 569 static void test_GetProp(void)
 570 {
 571     HRESULT hr;
 572     WCHAR container[256], property[256];
 573     IDxDiagContainer *child = NULL;
 574     DWORD count, index;
 575     VARIANT var;
 576     SAFEARRAY *sa;
 577     SAFEARRAYBOUND bound;
 578     ULONG ref;
 579     static const WCHAR emptyW[] = {0};
 580     static const WCHAR testW[] = {'t','e','s','t',0};
 581
 582     if (!create_root_IDxDiagContainer())
 583     {
 584         skip("Unable to create the root IDxDiagContainer\n");
 585         return;
 586     }
 587
 588     /* Find a container with a property. */
 589     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 590     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 591     if (FAILED(hr))
 592     {
 593         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 594         goto cleanup;
 595     }
 596
 597     for (index = 0; index < count; index++)
 598     {
 599         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, sizeof(container)/sizeof(WCHAR));
 600         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 601         if (FAILED(hr))
 602         {
 603             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 604             goto cleanup;
 605         }
 606
 607         hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 608         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 609
 610         if (SUCCEEDED(hr))
 611         {
 612             hr = IDxDiagContainer_EnumPropNames(child, 0, property, sizeof(property)/sizeof(WCHAR));
 613             ok(hr == S_OK || hr == E_INVALIDARG,
 614                "Expected IDxDiagContainer::EnumPropNames to return S_OK or E_INVALIDARG, got 0x%08x\n", hr);
 615
 616             if (SUCCEEDED(hr))
 617                 break;
 618             else
 619             {
 620                 IDxDiagContainer_Release(child);
 621                 child = NULL;
 622             }
 623         }
 624     }
 625
 626     if (!child)
 627     {
 628         skip("Unable to find a suitable container\n");
 629         goto cleanup;
 630     }
 631
 632     hr = IDxDiagContainer_GetProp(child, NULL, NULL);
 633     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 634
 635     V_VT(&var) = 0xdead;
 636     hr = IDxDiagContainer_GetProp(child, NULL, &var);
 637     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 638     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 639
 640     hr = IDxDiagContainer_GetProp(child, emptyW, NULL);
 641     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 642
 643     V_VT(&var) = 0xdead;
 644     hr = IDxDiagContainer_GetProp(child, emptyW, &var);
 645     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 646     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 647
 648     hr = IDxDiagContainer_GetProp(child, testW, NULL);
 649     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 650
 651     V_VT(&var) = 0xdead;
 652     hr = IDxDiagContainer_GetProp(child, testW, &var);
 653     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 654     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 655
 656     VariantInit(&var);
 657     hr = IDxDiagContainer_GetProp(child, property, &var);
 658     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 659     ok(V_VT(&var) != VT_EMPTY, "Expected the variant to be modified, got %d\n", V_VT(&var));
 660
 661     /* Since the documentation for IDxDiagContainer::GetProp claims that the
 662      * function reports return values from VariantCopy, try to exercise failure
 663      * paths in handling the destination variant. */
 664
 665     /* Try an invalid variant type. */
 666     V_VT(&var) = 0xdead;
 667     hr = IDxDiagContainer_GetProp(child, property, &var);
 668     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 669     ok(V_VT(&var) != 0xdead, "Expected the variant to be modified, got %d\n", V_VT(&var));
 670
 671     /* Try passing a variant with a locked SAFEARRAY. */
 672     bound.cElements = 1;
 673     bound.lLbound = 0;
 674     sa = SafeArrayCreate(VT_UI1, 1, &bound);
 675     ok(sa != NULL, "Expected SafeArrayCreate to return a valid pointer\n");
 676
 677     V_VT(&var) = (VT_ARRAY | VT_UI1);
 678     V_ARRAY(&var) = sa;
 679
 680     hr = SafeArrayLock(sa);
 681     ok(hr == S_OK, "Expected SafeArrayLock to return S_OK, got 0x%08x\n", hr);
 682
 683     hr = IDxDiagContainer_GetProp(child, property, &var);
 684     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 685     ok(V_VT(&var) != (VT_ARRAY | VT_UI1), "Expected the variant to be modified\n");
 686
 687     hr = SafeArrayUnlock(sa);
 688     ok(hr == S_OK, "Expected SafeArrayUnlock to return S_OK, got 0x%08x\n", hr);
 689     hr = SafeArrayDestroy(sa);
 690     ok(hr == S_OK, "Expected SafeArrayDestroy to return S_OK, got 0x%08x\n", hr);
 691
 692     /* Determine whether GetProp calls VariantClear on the passed variant. */
 693     V_VT(&var) = VT_UNKNOWN;
 694     V_UNKNOWN(&var) = (IUnknown *)child;
 695     IDxDiagContainer_AddRef(child);
 696
 697     hr = IDxDiagContainer_GetProp(child, property, &var);
 698     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 699     ok(V_VT(&var) != VT_UNKNOWN, "Expected the variant to be modified\n");
 700
 701     IDxDiagContainer_AddRef(child);
 702     ref = IDxDiagContainer_Release(child);
 703     ok(ref == 2, "Expected reference count to be 2, got %u\n", ref);
 704
 705     IDxDiagContainer_Release(child);
 706 cleanup:
 707     IDxDiagContainer_Release(pddc);
 708     IDxDiagProvider_Release(pddp);
 709 }
 710
 711 static void test_root_children(void)
 712 {
 713     static const WCHAR DxDiag_DirectSound[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','o','u','n','d',0};
 714     static const WCHAR DxDiag_DirectMusic[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','M','u','s','i','c',0};
 715     static const WCHAR DxDiag_DirectInput[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','I','n','p','u','t',0};
 716     static const WCHAR DxDiag_DirectPlay[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','P','l','a','y',0};
 717     static const WCHAR DxDiag_SystemDevices[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','D','e','v','i','c','e','s',0};
 718     static const WCHAR DxDiag_DirectXFiles[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','X','F','i','l','e','s',0};
 719     static const WCHAR DxDiag_DirectShowFilters[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','h','o','w','F','i','l','t','e','r','s',0};
 720     static const WCHAR DxDiag_LogicalDisks[] = {'D','x','D','i','a','g','_','L','o','g','i','c','a','l','D','i','s','k','s',0};
 721
 722     HRESULT hr;
 723     DWORD count, index;
 724
 725     static const WCHAR *root_children[] = {
 726         DxDiag_SystemInfo, DxDiag_DisplayDevices, DxDiag_DirectSound,
 727         DxDiag_DirectMusic, DxDiag_DirectInput, DxDiag_DirectPlay,
 728         DxDiag_SystemDevices, DxDiag_DirectXFiles, DxDiag_DirectShowFilters,
 729         DxDiag_LogicalDisks
 730     };
 731
 732     if (!create_root_IDxDiagContainer())
 733     {
 734         skip("Unable to create the root IDxDiagContainer\n");
 735         return;
 736     }
 737
 738     /* Verify the identity and ordering of the root container's children. */
 739     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 740     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 741     if (FAILED(hr))
 742     {
 743         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 744         goto cleanup;
 745     }
 746
 747     ok(count == sizeof(root_children)/sizeof(root_children[0]),
 748        "Got unexpected count %u for the number of child containers\n", count);
 749
 750     if (count != sizeof(root_children)/sizeof(root_children[0]))
 751     {
 752         skip("Received unexpected number of child containers\n");
 753         goto cleanup;
 754     }
 755
 756     for (index = 0; index <= count; index++)
 757     {
 758         WCHAR container[256];
 759
 760         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, sizeof(container)/sizeof(WCHAR));
 761         if (hr == E_INVALIDARG)
 762         {
 763             ok(index == count,
 764                "Expected IDxDiagContainer::EnumChildContainerNames to return "
 765                "E_INVALIDARG on the last index %u\n", count);
 766             break;
 767         }
 768         else if (hr == S_OK)
 769         {
 770             ok(!lstrcmpW(container, root_children[index]),
 771                "Expected container %s for index %u, got %s\n",
 772                wine_dbgstr_w(root_children[index]), index, wine_dbgstr_w(container));
 773         }
 774         else
 775         {
 776             ok(0, "IDxDiagContainer::EnumChildContainerNames unexpectedly returned 0x%08x\n", hr);
 777             break;
 778         }
 779     }
 780
 781 cleanup:
 782     IDxDiagContainer_Release(pddc);
 783     IDxDiagProvider_Release(pddp);
 784 }
 785
 786 static void test_container_properties(IDxDiagContainer *container, const struct property_test *property_tests, size_t len)
 787 {
 788     HRESULT hr;
 789
 790     /* Check that the container has no properties if there are no properties to examine. */
 791     if (len == 0)
 792     {
 793         DWORD prop_count;
 794
 795         hr = IDxDiagContainer_GetNumberOfProps(container, &prop_count);
 796         ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
 797         if (hr == S_OK)
 798             ok(prop_count == 0, "Expected container property count to be zero, got %u\n", prop_count);
 799     }
 800     else
 801     {
 802         VARIANT var;
 803         int i;
 804
 805         VariantInit(&var);
 806
 807         /* Examine the variant types of obtained property values. */
 808         for (i = 0; i < len; i++)
 809         {
 810             hr = IDxDiagContainer_GetProp(container, property_tests[i].prop, &var);
 811             ok(hr == S_OK, "[%d] Expected IDxDiagContainer::GetProp to return S_OK for %s, got 0x%08x\n",
 812                i, wine_dbgstr_w(property_tests[i].prop), hr);
 813
 814             if (hr == S_OK)
 815             {
 816                 ok(V_VT(&var) == property_tests[i].vt,
 817                    "[%d] Expected variant type %d, got %d\n", i, property_tests[i].vt, V_VT(&var));
 818                 trace("%s = %s\n", wine_dbgstr_w(property_tests[i].prop), debugstr_variant(&var));
 819                 VariantClear(&var);
 820             }
 821         }
 822     }
 823 }
 824
 825 static void test_DxDiag_SystemInfo(void)
 826 {
 827     static const WCHAR dwOSMajorVersion[] = {'d','w','O','S','M','a','j','o','r','V','e','r','s','i','o','n',0};
 828     static const WCHAR dwOSMinorVersion[] = {'d','w','O','S','M','i','n','o','r','V','e','r','s','i','o','n',0};
 829     static const WCHAR dwOSBuildNumber[] = {'d','w','O','S','B','u','i','l','d','N','u','m','b','e','r',0};
 830     static const WCHAR dwOSPlatformID[] = {'d','w','O','S','P','l','a','t','f','o','r','m','I','D',0};
 831     static const WCHAR dwDirectXVersionMajor[] = {'d','w','D','i','r','e','c','t','X','V','e','r','s','i','o','n','M','a','j','o','r',0};
 832     static const WCHAR dwDirectXVersionMinor[] = {'d','w','D','i','r','e','c','t','X','V','e','r','s','i','o','n','M','i','n','o','r',0};
 833     static const WCHAR szDirectXVersionLetter[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','L','e','t','t','e','r',0};
 834     static const WCHAR bDebug[] = {'b','D','e','b','u','g',0};
 835     static const WCHAR bNECPC98[] = {'b','N','E','C','P','C','9','8',0};
 836     static const WCHAR ullPhysicalMemory[] = {'u','l','l','P','h','y','s','i','c','a','l','M','e','m','o','r','y',0};
 837     static const WCHAR ullUsedPageFile[] = {'u','l','l','U','s','e','d','P','a','g','e','F','i','l','e',0};
 838     static const WCHAR ullAvailPageFile[] = {'u','l','l','A','v','a','i','l','P','a','g','e','F','i','l','e',0};
 839     static const WCHAR szWindowsDir[] = {'s','z','W','i','n','d','o','w','s','D','i','r',0};
 840     static const WCHAR szCSDVersion[] = {'s','z','C','S','D','V','e','r','s','i','o','n',0};
 841     static const WCHAR szDirectXVersionEnglish[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','E','n','g','l','i','s','h',0};
 842     static const WCHAR szDirectXVersionLongEnglish[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','L','o','n','g','E','n','g','l','i','s','h',0};
 843     static const WCHAR bNetMeetingRunning[] = {'b','N','e','t','M','e','e','t','i','n','g','R','u','n','n','i','n','g',0};
 844     static const WCHAR szMachineNameLocalized[] = {'s','z','M','a','c','h','i','n','e','N','a','m','e','L','o','c','a','l','i','z','e','d',0};
 845     static const WCHAR szMachineNameEnglish[] = {'s','z','M','a','c','h','i','n','e','N','a','m','e','E','n','g','l','i','s','h',0};
 846     static const WCHAR szLanguagesLocalized[] = {'s','z','L','a','n','g','u','a','g','e','s','L','o','c','a','l','i','z','e','d',0};
 847     static const WCHAR szLanguagesEnglish[] = {'s','z','L','a','n','g','u','a','g','e','s','E','n','g','l','i','s','h',0};
 848     static const WCHAR szTimeLocalized[] = {'s','z','T','i','m','e','L','o','c','a','l','i','z','e','d',0};
 849     static const WCHAR szTimeEnglish[] = {'s','z','T','i','m','e','E','n','g','l','i','s','h',0};
 850     static const WCHAR szPhysicalMemoryEnglish[] = {'s','z','P','h','y','s','i','c','a','l','M','e','m','o','r','y','E','n','g','l','i','s','h',0};
 851     static const WCHAR szPageFileLocalized[] = {'s','z','P','a','g','e','F','i','l','e','L','o','c','a','l','i','z','e','d',0};
 852     static const WCHAR szPageFileEnglish[] = {'s','z','P','a','g','e','F','i','l','e','E','n','g','l','i','s','h',0};
 853     static const WCHAR szOSLocalized[] = {'s','z','O','S','L','o','c','a','l','i','z','e','d',0};
 854     static const WCHAR szOSExLocalized[] = {'s','z','O','S','E','x','L','o','c','a','l','i','z','e','d',0};
 855     static const WCHAR szOSExLongLocalized[] = {'s','z','O','S','E','x','L','o','n','g','L','o','c','a','l','i','z','e','d',0};
 856     static const WCHAR szOSEnglish[] = {'s','z','O','S','E','n','g','l','i','s','h',0};
 857     static const WCHAR szOSExEnglish[] = {'s','z','O','S','E','x','E','n','g','l','i','s','h',0};
 858     static const WCHAR szOSExLongEnglish[] = {'s','z','O','S','E','x','L','o','n','g','E','n','g','l','i','s','h',0};
 859
 860     static const struct property_test property_tests[] =
 861     {
 862         {dwOSMajorVersion, VT_UI4},
 863         {dwOSMinorVersion, VT_UI4},
 864         {dwOSBuildNumber, VT_UI4},
 865         {dwOSPlatformID, VT_UI4},
 866         {dwDirectXVersionMajor, VT_UI4},
 867         {dwDirectXVersionMinor, VT_UI4},
 868         {szDirectXVersionLetter, VT_BSTR},
 869         {bDebug, VT_BOOL},
 870         {bNECPC98, VT_BOOL},
 871         {ullPhysicalMemory, VT_BSTR},
 872         {ullUsedPageFile, VT_BSTR},
 873         {ullAvailPageFile, VT_BSTR},
 874         {szWindowsDir, VT_BSTR},
 875         {szCSDVersion, VT_BSTR},
 876         {szDirectXVersionEnglish, VT_BSTR},
 877         {szDirectXVersionLongEnglish, VT_BSTR},
 878         {bNetMeetingRunning, VT_BOOL},
 879         {szMachineNameLocalized, VT_BSTR},
 880         {szMachineNameEnglish, VT_BSTR},
 881         {szLanguagesLocalized, VT_BSTR},
 882         {szLanguagesEnglish, VT_BSTR},
 883         {szTimeLocalized, VT_BSTR},
 884         {szTimeEnglish, VT_BSTR},
 885         {szPhysicalMemoryEnglish, VT_BSTR},
 886         {szPageFileLocalized, VT_BSTR},
 887         {szPageFileEnglish, VT_BSTR},
 888         {szOSLocalized, VT_BSTR},
 889         {szOSExLocalized, VT_BSTR},
 890         {szOSExLongLocalized, VT_BSTR},
 891         {szOSEnglish, VT_BSTR},
 892         {szOSExEnglish, VT_BSTR},
 893         {szOSExLongEnglish, VT_BSTR},
 894     };
 895
 896     IDxDiagContainer *container;
 897     HRESULT hr;
 898
 899     if (!create_root_IDxDiagContainer())
 900     {
 901         skip("Unable to create the root IDxDiagContainer\n");
 902         return;
 903     }
 904
 905     hr = IDxDiagContainer_GetChildContainer(pddc, DxDiag_SystemInfo, &container);
 906     ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 907
 908     if (hr == S_OK)
 909     {
 910         trace("Testing container DxDiag_SystemInfo\n");
 911         test_container_properties(container, property_tests, sizeof(property_tests)/sizeof(property_tests[0]));
 912         IDxDiagContainer_Release(container);
 913     }
 914
 915     IDxDiagContainer_Release(pddc);
 916     IDxDiagProvider_Release(pddp);
 917 }
 918
 919 static void test_DxDiag_DisplayDevices(void)
 920 {
 921     static const WCHAR szDescription[] = {'s','z','D','e','s','c','r','i','p','t','i','o','n',0};
 922     static const WCHAR szDeviceName[] = {'s','z','D','e','v','i','c','e','N','a','m','e',0};
 923     static const WCHAR szKeyDeviceID[] = {'s','z','K','e','y','D','e','v','i','c','e','I','D',0};
 924     static const WCHAR szKeyDeviceKey[] = {'s','z','K','e','y','D','e','v','i','c','e','K','e','y',0};
 925     static const WCHAR szVendorId[] = {'s','z','V','e','n','d','o','r','I','d',0};
 926     static const WCHAR szDeviceId[] = {'s','z','D','e','v','i','c','e','I','d',0};
 927     static const WCHAR szDeviceIdentifier[] = {'s','z','D','e','v','i','c','e','I','d','e','n','t','i','f','i','e','r',0};
 928     static const WCHAR dwWidth[] = {'d','w','W','i','d','t','h',0};
 929     static const WCHAR dwHeight[] = {'d','w','H','e','i','g','h','t',0};
 930     static const WCHAR dwBpp[] = {'d','w','B','p','p',0};
 931     static const WCHAR szDisplayMemoryLocalized[] = {'s','z','D','i','s','p','l','a','y','M','e','m','o','r','y','L','o','c','a','l','i','z','e','d',0};
 932     static const WCHAR szDisplayMemoryEnglish[] = {'s','z','D','i','s','p','l','a','y','M','e','m','o','r','y','E','n','g','l','i','s','h',0};
 933     static const WCHAR szDriverName[] = {'s','z','D','r','i','v','e','r','N','a','m','e',0};
 934     static const WCHAR szDriverVersion[] = {'s','z','D','r','i','v','e','r','V','e','r','s','i','o','n',0};
 935     static const WCHAR szSubSysId[] = {'s','z','S','u','b','S','y','s','I','d',0};
 936     static const WCHAR szRevisionId[] = {'s','z','R','e','v','i','s','i','o','n','I','d',0};
 937     static const WCHAR dwRefreshRate[] = {'d','w','R','e','f','r','e','s','h','R','a','t','e',0};
 938     static const WCHAR szManufacturer[] = {'s','z','M','a','n','u','f','a','c','t','u','r','e','r',0};
 939
 940     static const struct property_test property_tests[] =
 941     {
 942         {szDescription, VT_BSTR},
 943         {szDeviceName, VT_BSTR},
 944         {szKeyDeviceID, VT_BSTR},
 945         {szKeyDeviceKey, VT_BSTR},
 946         {szVendorId, VT_BSTR},
 947         {szDeviceId, VT_BSTR},
 948         {szDeviceIdentifier, VT_BSTR},
 949         {dwWidth, VT_UI4},
 950         {dwHeight, VT_UI4},
 951         {dwBpp, VT_UI4},
 952         {szDisplayMemoryLocalized, VT_BSTR},
 953         {szDisplayMemoryEnglish, VT_BSTR},
 954         {szDriverName, VT_BSTR},
 955         {szDriverVersion, VT_BSTR},
 956         {szSubSysId, VT_BSTR},
 957         {szRevisionId, VT_BSTR},
 958         {dwRefreshRate, VT_UI4},
 959         {szManufacturer, VT_BSTR},
 960     };
 961
 962     IDxDiagContainer *display_cont = NULL;
 963     DWORD count, i;
 964     HRESULT hr;
 965
 966     if (!create_root_IDxDiagContainer())
 967     {
 968         skip("Unable to create the root IDxDiagContainer\n");
 969         return;
 970     }
 971
 972     hr = IDxDiagContainer_GetChildContainer(pddc, DxDiag_DisplayDevices, &display_cont);
 973     ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 974
 975     if (hr != S_OK)
 976         goto cleanup;
 977
 978     hr = IDxDiagContainer_GetNumberOfProps(display_cont, &count);
 979     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
 980     if (hr == S_OK)
 981         ok(count == 0, "Expected count to be 0, got %u\n", count);
 982
 983     hr = IDxDiagContainer_GetNumberOfChildContainers(display_cont, &count);
 984     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 985
 986     if (hr != S_OK)
 987         goto cleanup;
 988
 989     for (i = 0; i < count; i++)
 990     {
 991         WCHAR child_container[256];
 992         IDxDiagContainer *child;
 993
 994         hr = IDxDiagContainer_EnumChildContainerNames(display_cont, i, child_container, sizeof(child_container)/sizeof(WCHAR));
 995         ok(hr == S_OK, "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 996
 997         hr = IDxDiagContainer_GetChildContainer(display_cont, child_container, &child);
 998         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 999
1000         if (hr == S_OK)
1001         {
1002             trace("Testing container %s\n", wine_dbgstr_w(child_container));
1003             test_container_properties(child, property_tests, sizeof(property_tests)/sizeof(property_tests[0]));
1004         }
1005     }
1006
1007 cleanup:
1008     if (display_cont) IDxDiagContainer_Release(display_cont);
1009     IDxDiagContainer_Release(pddc);
1010     IDxDiagProvider_Release(pddp);
1011 }
1012
1013 START_TEST(container)
1014 {
1015     CoInitialize(NULL);
1016     test_GetNumberOfChildContainers();
1017     test_GetNumberOfProps();
1018     test_EnumChildContainerNames();
1019     test_GetChildContainer();
1020     test_dot_parsing();
1021     test_EnumPropNames();
1022     test_GetProp();
1023
1024     test_root_children();
1025     test_DxDiag_SystemInfo();
1026     test_DxDiag_DisplayDevices();
1027     CoUninitialize();
1028 }