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 static IDxDiagProvider *pddp;
  29 static IDxDiagContainer *pddc;
  30
  31 static BOOL create_root_IDxDiagContainer(void)
  32 {
  33     HRESULT hr;
  34     DXDIAG_INIT_PARAMS params;
  35
  36     hr = CoCreateInstance(&CLSID_DxDiagProvider, NULL, CLSCTX_INPROC_SERVER,
  37                           &IID_IDxDiagProvider, (LPVOID*)&pddp);
  38     if (SUCCEEDED(hr))
  39     {
  40         params.dwSize = sizeof(params);
  41         params.dwDxDiagHeaderVersion = DXDIAG_DX9_SDK_VERSION;
  42         params.bAllowWHQLChecks = FALSE;
  43         params.pReserved = NULL;
  44         hr = IDxDiagProvider_Initialize(pddp, &params);
  45         if (SUCCEEDED(hr))
  46         {
  47             hr = IDxDiagProvider_GetRootContainer(pddp, &pddc);
  48             if (SUCCEEDED(hr))
  49                 return TRUE;
  50         }
  51         IDxDiagProvider_Release(pddp);
  52     }
  53     return FALSE;
  54 }
  55
  56 static void test_GetNumberOfChildContainers(void)
  57 {
  58     HRESULT hr;
  59     DWORD count;
  60
  61     if (!create_root_IDxDiagContainer())
  62     {
  63         skip("Unable to create the root IDxDiagContainer\n");
  64         return;
  65     }
  66
  67     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, NULL);
  68     ok(hr == E_INVALIDARG,
  69        "Expected IDxDiagContainer::GetNumberOfChildContainers to return E_INVALIDARG, got 0x%08x\n", hr);
  70
  71     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
  72     ok(hr == S_OK,
  73        "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
  74     if (hr == S_OK)
  75         ok(count != 0, "Expected the number of child containers for the root container to be non-zero\n");
  76
  77     IDxDiagContainer_Release(pddc);
  78     IDxDiagProvider_Release(pddp);
  79 }
  80
  81 static void test_GetNumberOfProps(void)
  82 {
  83     HRESULT hr;
  84     DWORD count;
  85
  86     if (!create_root_IDxDiagContainer())
  87     {
  88         skip("Unable to create the root IDxDiagContainer\n");
  89         return;
  90     }
  91
  92     hr = IDxDiagContainer_GetNumberOfProps(pddc, NULL);
  93     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetNumberOfProps to return E_INVALIDARG, got 0x%08x\n", hr);
  94
  95     hr = IDxDiagContainer_GetNumberOfProps(pddc, &count);
  96     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
  97     if (hr == S_OK)
  98         ok(count == 0, "Expected the number of properties for the root container to be zero\n");
  99
 100     IDxDiagContainer_Release(pddc);
 101     IDxDiagProvider_Release(pddp);
 102 }
 103
 104 static void test_EnumChildContainerNames(void)
 105 {
 106     HRESULT hr;
 107     WCHAR container[256];
 108     DWORD maxcount, index;
 109     static const WCHAR testW[] = {'t','e','s','t',0};
 110     static const WCHAR zerotestW[] = {0,'e','s','t',0};
 111
 112     if (!create_root_IDxDiagContainer())
 113     {
 114         skip("Unable to create the root IDxDiagContainer\n");
 115         return;
 116     }
 117
 118     /* Test various combinations of invalid parameters. */
 119     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, NULL, 0);
 120     ok(hr == E_INVALIDARG,
 121        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 122
 123     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, NULL, sizeof(container)/sizeof(WCHAR));
 124     ok(hr == E_INVALIDARG,
 125        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 126
 127     /* Test the conditions in which the output buffer can be modified. */
 128     memcpy(container, testW, sizeof(testW));
 129     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, container, 0);
 130     ok(hr == E_INVALIDARG,
 131        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 132     ok(!memcmp(container, testW, sizeof(testW)),
 133        "Expected the container buffer to be untouched, got %s\n", wine_dbgstr_w(container));
 134
 135     memcpy(container, testW, sizeof(testW));
 136     hr = IDxDiagContainer_EnumChildContainerNames(pddc, ~0, container, 0);
 137     ok(hr == E_INVALIDARG,
 138        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 139     ok(!memcmp(container, testW, sizeof(testW)),
 140        "Expected the container buffer to be untouched, got %s\n", wine_dbgstr_w(container));
 141
 142     memcpy(container, testW, sizeof(testW));
 143     hr = IDxDiagContainer_EnumChildContainerNames(pddc, ~0, container, sizeof(container)/sizeof(WCHAR));
 144     ok(hr == E_INVALIDARG,
 145        "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG, got 0x%08x\n", hr);
 146     ok(!memcmp(container, zerotestW, sizeof(zerotestW)),
 147        "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 148
 149     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &maxcount);
 150     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 151     if (FAILED(hr))
 152     {
 153         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 154         goto cleanup;
 155     }
 156
 157     trace("Starting child container enumeration of the root container:\n");
 158
 159     /* We should be able to enumerate as many child containers as the value
 160      * that IDxDiagContainer::GetNumberOfChildContainers returns. */
 161     for (index = 0; index <= maxcount; index++)
 162     {
 163         /* A buffer size of 1 is unlikely to be valid, as only a null terminator
 164          * could be stored, and it is unlikely that a container name could be empty. */
 165         DWORD buffersize = 1;
 166         memcpy(container, testW, sizeof(testW));
 167         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, buffersize);
 168         if (hr == E_INVALIDARG)
 169         {
 170             /* We should get here when index is one more than the maximum index value. */
 171             ok(maxcount == index,
 172                "Expected IDxDiagContainer::EnumChildContainerNames to return E_INVALIDARG "
 173                "on the last index %d, got 0x%08x\n", index, hr);
 174             ok(container[0] == '\0',
 175                "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 176             break;
 177         }
 178         else if (hr == DXDIAG_E_INSUFFICIENT_BUFFER)
 179         {
 180             WCHAR temp[256];
 181
 182             ok(container[0] == '\0',
 183                "Expected the container buffer string to be empty, got %s\n", wine_dbgstr_w(container));
 184
 185             /* Get the container name to compare against. */
 186             hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, temp, sizeof(temp)/sizeof(WCHAR));
 187             ok(hr == S_OK,
 188                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 189
 190             /* Show that the DirectX SDK's stipulation that the buffer be at
 191              * least 256 characters long is a mere suggestion, and smaller sizes
 192              * can be acceptable also. IDxDiagContainer::EnumChildContainerNames
 193              * doesn't provide a way of getting the exact size required, so the
 194              * buffersize value will be iterated to at most 256 characters. */
 195             for (buffersize = 2; buffersize <= 256; buffersize++)
 196             {
 197                 memcpy(container, testW, sizeof(testW));
 198                 hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, buffersize);
 199                 if (hr != DXDIAG_E_INSUFFICIENT_BUFFER)
 200                     break;
 201
 202                 ok(!memcmp(temp, container, sizeof(WCHAR)*(buffersize - 1)),
 203                    "Expected truncated container name string, got %s\n", wine_dbgstr_w(container));
 204             }
 205
 206             ok(hr == S_OK,
 207                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, "
 208                "got hr = 0x%08x, buffersize = %d\n", hr, buffersize);
 209             if (hr == S_OK)
 210                 trace("pddc[%d] = %s, length = %d\n", index, wine_dbgstr_w(container), buffersize);
 211         }
 212         else
 213         {
 214             ok(0, "IDxDiagContainer::EnumChildContainerNames unexpectedly returned 0x%08x\n", hr);
 215             break;
 216         }
 217     }
 218
 219 cleanup:
 220     IDxDiagContainer_Release(pddc);
 221     IDxDiagProvider_Release(pddp);
 222 }
 223
 224 static void test_GetChildContainer(void)
 225 {
 226     HRESULT hr;
 227     WCHAR container[256] = {0};
 228     IDxDiagContainer *child;
 229
 230     if (!create_root_IDxDiagContainer())
 231     {
 232         skip("Unable to create the root IDxDiagContainer\n");
 233         return;
 234     }
 235
 236     /* Test various combinations of invalid parameters. */
 237     hr = IDxDiagContainer_GetChildContainer(pddc, NULL, NULL);
 238     ok(hr == E_INVALIDARG,
 239        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 240
 241     child = (void*)0xdeadbeef;
 242     hr = IDxDiagContainer_GetChildContainer(pddc, NULL, &child);
 243     ok(hr == E_INVALIDARG,
 244        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 245     ok(child == (void*)0xdeadbeef, "Expected output pointer to be unchanged, got %p\n", child);
 246
 247     hr = IDxDiagContainer_GetChildContainer(pddc, container, NULL);
 248     ok(hr == E_INVALIDARG,
 249        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 250
 251     child = (void*)0xdeadbeef;
 252     hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 253     ok(hr == E_INVALIDARG,
 254        "Expected IDxDiagContainer::GetChildContainer to return E_INVALIDARG, got 0x%08x\n", hr);
 255     ok(child == NULL, "Expected output pointer to be NULL, got %p\n", child);
 256
 257     /* Get the name of a suitable child container. */
 258     hr = IDxDiagContainer_EnumChildContainerNames(pddc, 0, container, sizeof(container)/sizeof(WCHAR));
 259     ok(hr == S_OK,
 260        "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 261     if (FAILED(hr))
 262     {
 263         skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 264         goto cleanup;
 265     }
 266
 267     child = (void*)0xdeadbeef;
 268     hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 269     ok(hr == S_OK,
 270        "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 271     ok(child != NULL && child != (void*)0xdeadbeef, "Expected a valid output pointer, got %p\n", child);
 272
 273     if (SUCCEEDED(hr))
 274     {
 275         IDxDiagContainer *ptr;
 276
 277         /* Show that IDxDiagContainer::GetChildContainer returns a different pointer
 278          * for multiple calls for the same container name. */
 279         hr = IDxDiagContainer_GetChildContainer(pddc, container, &ptr);
 280         ok(hr == S_OK,
 281            "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 282         if (SUCCEEDED(hr))
 283             todo_wine ok(ptr != child, "Expected the two pointers (%p vs. %p) to be unequal\n", child, ptr);
 284
 285         IDxDiagContainer_Release(ptr);
 286         IDxDiagContainer_Release(child);
 287     }
 288
 289 cleanup:
 290     IDxDiagContainer_Release(pddc);
 291     IDxDiagProvider_Release(pddp);
 292 }
 293
 294 static void test_dot_parsing(void)
 295 {
 296     HRESULT hr;
 297     WCHAR containerbufW[256] = {0}, childbufW[256] = {0};
 298     DWORD count, index;
 299     size_t i;
 300     static const struct
 301     {
 302         const char *format;
 303         const HRESULT expect;
 304     } test_strings[] = {
 305         { "%s.%s",   S_OK },
 306         { "%s.%s.",  S_OK },
 307         { ".%s.%s",  E_INVALIDARG },
 308         { "%s.%s..", E_INVALIDARG },
 309         { ".%s.%s.", E_INVALIDARG },
 310         { "..%s.%s", E_INVALIDARG },
 311     };
 312
 313     if (!create_root_IDxDiagContainer())
 314     {
 315         skip("Unable to create the root IDxDiagContainer\n");
 316         return;
 317     }
 318
 319     /* Find a container with a child container of its own. */
 320     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 321     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 322     if (FAILED(hr))
 323     {
 324         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 325         goto cleanup;
 326     }
 327
 328     for (index = 0; index < count; index++)
 329     {
 330         IDxDiagContainer *child;
 331
 332         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, containerbufW, sizeof(containerbufW)/sizeof(WCHAR));
 333         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 334         if (FAILED(hr))
 335         {
 336             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 337             goto cleanup;
 338         }
 339
 340         hr = IDxDiagContainer_GetChildContainer(pddc, containerbufW, &child);
 341         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 342
 343         if (SUCCEEDED(hr))
 344         {
 345             hr = IDxDiagContainer_EnumChildContainerNames(child, 0, childbufW, sizeof(childbufW)/sizeof(WCHAR));
 346             ok(hr == S_OK || hr == E_INVALIDARG,
 347                "Expected IDxDiagContainer::EnumChildContainerNames to return S_OK or E_INVALIDARG, got 0x%08x\n", hr);
 348             IDxDiagContainer_Release(child);
 349
 350             if (SUCCEEDED(hr))
 351                 break;
 352         }
 353     }
 354
 355     if (!*containerbufW || !*childbufW)
 356     {
 357         skip("Unable to find a suitable container\n");
 358         goto cleanup;
 359     }
 360
 361     trace("Testing IDxDiagContainer::GetChildContainer dot parsing with container %s and child container %s.\n",
 362           wine_dbgstr_w(containerbufW), wine_dbgstr_w(childbufW));
 363
 364     for (i = 0; i < sizeof(test_strings)/sizeof(test_strings[0]); i++)
 365     {
 366         IDxDiagContainer *child;
 367         char containerbufA[256];
 368         char childbufA[256];
 369         char dotbufferA[255 + 255 + 3 + 1];
 370         WCHAR dotbufferW[255 + 255 + 3 + 1]; /* containerbuf + childbuf + dots + null terminator */
 371
 372         WideCharToMultiByte(CP_ACP, 0, containerbufW, -1, containerbufA, sizeof(containerbufA), NULL, NULL);
 373         WideCharToMultiByte(CP_ACP, 0, childbufW, -1, childbufA, sizeof(childbufA), NULL, NULL);
 374         sprintf(dotbufferA, test_strings[i].format, containerbufA, childbufA);
 375         MultiByteToWideChar(CP_ACP, 0, dotbufferA, -1, dotbufferW, sizeof(dotbufferW)/sizeof(WCHAR));
 376
 377         trace("Trying container name %s\n", wine_dbgstr_w(dotbufferW));
 378         hr = IDxDiagContainer_GetChildContainer(pddc, dotbufferW, &child);
 379         ok(hr == test_strings[i].expect,
 380            "Expected IDxDiagContainer::GetChildContainer to return 0x%08x for %s, got 0x%08x\n",
 381            test_strings[i].expect, wine_dbgstr_w(dotbufferW), hr);
 382         if (SUCCEEDED(hr))
 383             IDxDiagContainer_Release(child);
 384     }
 385
 386 cleanup:
 387     IDxDiagContainer_Release(pddc);
 388     IDxDiagProvider_Release(pddp);
 389 }
 390
 391 static void test_EnumPropNames(void)
 392 {
 393     HRESULT hr;
 394     WCHAR container[256], property[256];
 395     IDxDiagContainer *child = NULL;
 396     DWORD count, index, propcount;
 397     static const WCHAR testW[] = {'t','e','s','t',0};
 398
 399     if (!create_root_IDxDiagContainer())
 400     {
 401         skip("Unable to create the root IDxDiagContainer\n");
 402         return;
 403     }
 404
 405     /* Find a container with a non-zero number of properties. */
 406     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 407     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 408     if (FAILED(hr))
 409     {
 410         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 411         goto cleanup;
 412     }
 413
 414     for (index = 0; index < count; index++)
 415     {
 416         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, sizeof(container)/sizeof(WCHAR));
 417         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 418         if (FAILED(hr))
 419         {
 420             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 421             goto cleanup;
 422         }
 423
 424         hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 425         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 426
 427         if (SUCCEEDED(hr))
 428         {
 429             hr = IDxDiagContainer_GetNumberOfProps(child, &propcount);
 430             ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfProps to return S_OK, got 0x%08x\n", hr);
 431
 432             if (!propcount)
 433             {
 434                 IDxDiagContainer_Release(child);
 435                 child = NULL;
 436             }
 437             else
 438                 break;
 439         }
 440     }
 441
 442     if (!child)
 443     {
 444         skip("Unable to find a container with non-zero property count\n");
 445         goto cleanup;
 446     }
 447
 448     hr = IDxDiagContainer_EnumPropNames(child, ~0, NULL, 0);
 449     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 450
 451     memcpy(property, testW, sizeof(testW));
 452     hr = IDxDiagContainer_EnumPropNames(child, ~0, property, 0);
 453     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 454     ok(!memcmp(property, testW, sizeof(testW)),
 455        "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 456
 457     memcpy(property, testW, sizeof(testW));
 458     hr = IDxDiagContainer_EnumPropNames(child, ~0, property, sizeof(property)/sizeof(WCHAR));
 459     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG, got 0x%08x\n", hr);
 460     ok(!memcmp(property, testW, sizeof(testW)),
 461        "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 462
 463     trace("Starting property enumeration of the %s container:\n", wine_dbgstr_w(container));
 464
 465     /* We should be able to enumerate as many properties as the value that
 466      * IDxDiagContainer::GetNumberOfProps returns. */
 467     for (index = 0; index <= propcount; index++)
 468     {
 469         /* A buffer size of 1 is unlikely to be valid, as only a null terminator
 470          * could be stored, and it is unlikely that a property name could be empty. */
 471         DWORD buffersize = 1;
 472
 473         memcpy(property, testW, sizeof(testW));
 474         hr = IDxDiagContainer_EnumPropNames(child, index, property, buffersize);
 475         if (hr == E_INVALIDARG)
 476         {
 477             /* We should get here when index is one more than the maximum index value. */
 478             ok(propcount == index,
 479                "Expected IDxDiagContainer::EnumPropNames to return E_INVALIDARG "
 480                "on the last index %d, got 0x%08x\n", index, hr);
 481             ok(!memcmp(property, testW, sizeof(testW)),
 482                "Expected the property buffer to be unchanged, got %s\n", wine_dbgstr_w(property));
 483             break;
 484         }
 485         else if (hr == DXDIAG_E_INSUFFICIENT_BUFFER)
 486         {
 487             WCHAR temp[256];
 488
 489             ok(property[0] == '\0',
 490                "Expected the property buffer string to be empty, got %s\n", wine_dbgstr_w(property));
 491             hr = IDxDiagContainer_EnumPropNames(child, index, temp, sizeof(temp)/sizeof(WCHAR));
 492             ok(hr == S_OK,
 493                "Expected IDxDiagContainer::EnumPropNames to return S_OK, got 0x%08x\n", hr);
 494
 495             /* Show that the DirectX SDK's stipulation that the buffer be at
 496              * least 256 characters long is a mere suggestion, and smaller sizes
 497              * can be acceptable also. IDxDiagContainer::EnumPropNames doesn't
 498              * provide a way of getting the exact size required, so the buffersize
 499              * value will be iterated to at most 256 characters. */
 500             for (buffersize = 2; buffersize <= 256; buffersize++)
 501             {
 502                 memcpy(property, testW, sizeof(testW));
 503                 hr = IDxDiagContainer_EnumPropNames(child, index, property, buffersize);
 504                 if (hr != DXDIAG_E_INSUFFICIENT_BUFFER)
 505                     break;
 506
 507                 ok(!memcmp(temp, property, sizeof(WCHAR)*(buffersize - 1)),
 508                    "Expected truncated property name string, got %s\n", wine_dbgstr_w(property));
 509             }
 510
 511             ok(hr == S_OK,
 512                "Expected IDxDiagContainer::EnumPropNames to return S_OK, "
 513                "got hr = 0x%08x, buffersize = %d\n", hr, buffersize);
 514             if (hr == S_OK)
 515                 trace("child[%d] = %s, length = %d\n", index, wine_dbgstr_w(property), buffersize);
 516         }
 517         else
 518         {
 519             ok(0, "IDxDiagContainer::EnumPropNames unexpectedly returned 0x%08x\n", hr);
 520             break;
 521         }
 522     }
 523
 524     IDxDiagContainer_Release(child);
 525
 526 cleanup:
 527     IDxDiagContainer_Release(pddc);
 528     IDxDiagProvider_Release(pddp);
 529 }
 530
 531 static void test_GetProp(void)
 532 {
 533     HRESULT hr;
 534     WCHAR container[256], property[256];
 535     IDxDiagContainer *child = NULL;
 536     DWORD count, index;
 537     VARIANT var;
 538     SAFEARRAY *sa;
 539     SAFEARRAYBOUND bound;
 540     static const WCHAR emptyW[] = {0};
 541     static const WCHAR testW[] = {'t','e','s','t',0};
 542
 543     if (!create_root_IDxDiagContainer())
 544     {
 545         skip("Unable to create the root IDxDiagContainer\n");
 546         return;
 547     }
 548
 549     /* Find a container with a property. */
 550     hr = IDxDiagContainer_GetNumberOfChildContainers(pddc, &count);
 551     ok(hr == S_OK, "Expected IDxDiagContainer::GetNumberOfChildContainers to return S_OK, got 0x%08x\n", hr);
 552     if (FAILED(hr))
 553     {
 554         skip("IDxDiagContainer::GetNumberOfChildContainers failed\n");
 555         goto cleanup;
 556     }
 557
 558     for (index = 0; index < count; index++)
 559     {
 560         hr = IDxDiagContainer_EnumChildContainerNames(pddc, index, container, sizeof(container)/sizeof(WCHAR));
 561         ok(hr == S_OK, "Expected IDxDiagContainer_EnumChildContainerNames to return S_OK, got 0x%08x\n", hr);
 562         if (FAILED(hr))
 563         {
 564             skip("IDxDiagContainer::EnumChildContainerNames failed\n");
 565             goto cleanup;
 566         }
 567
 568         hr = IDxDiagContainer_GetChildContainer(pddc, container, &child);
 569         ok(hr == S_OK, "Expected IDxDiagContainer::GetChildContainer to return S_OK, got 0x%08x\n", hr);
 570
 571         if (SUCCEEDED(hr))
 572         {
 573             hr = IDxDiagContainer_EnumPropNames(child, 0, property, sizeof(property)/sizeof(WCHAR));
 574             ok(hr == S_OK || hr == E_INVALIDARG,
 575                "Expected IDxDiagContainer::EnumPropNames to return S_OK or E_INVALIDARG, got 0x%08x\n", hr);
 576
 577             if (SUCCEEDED(hr))
 578                 break;
 579             else
 580             {
 581                 IDxDiagContainer_Release(child);
 582                 child = NULL;
 583             }
 584         }
 585     }
 586
 587     if (!child)
 588     {
 589         skip("Unable to find a suitable container\n");
 590         goto cleanup;
 591     }
 592
 593     hr = IDxDiagContainer_GetProp(child, NULL, NULL);
 594     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 595
 596     V_VT(&var) = 0xdead;
 597     hr = IDxDiagContainer_GetProp(child, NULL, &var);
 598     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 599     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 600
 601     hr = IDxDiagContainer_GetProp(child, emptyW, NULL);
 602     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 603
 604     V_VT(&var) = 0xdead;
 605     hr = IDxDiagContainer_GetProp(child, emptyW, &var);
 606     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 607     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 608
 609     hr = IDxDiagContainer_GetProp(child, testW, NULL);
 610     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 611
 612     V_VT(&var) = 0xdead;
 613     hr = IDxDiagContainer_GetProp(child, testW, &var);
 614     ok(hr == E_INVALIDARG, "Expected IDxDiagContainer::GetProp to return E_INVALIDARG, got 0x%08x\n", hr);
 615     ok(V_VT(&var) == 0xdead, "Expected the variant to be untouched, got %u\n", V_VT(&var));
 616
 617     VariantInit(&var);
 618     hr = IDxDiagContainer_GetProp(child, property, &var);
 619     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 620     ok(V_VT(&var) != VT_EMPTY, "Expected the variant to be modified, got %d\n", V_VT(&var));
 621
 622     /* Since the documentation for IDxDiagContainer::GetProp claims that the
 623      * function reports return values from VariantCopy, try to exercise failure
 624      * paths in handling the destination variant. */
 625
 626     /* Try an invalid variant type. */
 627     V_VT(&var) = 0xdead;
 628     hr = IDxDiagContainer_GetProp(child, property, &var);
 629     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 630     ok(V_VT(&var) != 0xdead, "Expected the variant to be modified, got %d\n", V_VT(&var));
 631
 632     /* Try passing a variant with a locked SAFEARRAY. */
 633     bound.cElements = 1;
 634     bound.lLbound = 0;
 635     sa = SafeArrayCreate(VT_UI1, 1, &bound);
 636     ok(sa != NULL, "Expected SafeArrayCreate to return a valid pointer\n");
 637
 638     V_VT(&var) = (VT_ARRAY | VT_UI1);
 639     V_ARRAY(&var) = sa;
 640
 641     hr = SafeArrayLock(sa);
 642     ok(hr == S_OK, "Expected SafeArrayLock to return S_OK, got 0x%08x\n", hr);
 643
 644     hr = IDxDiagContainer_GetProp(child, property, &var);
 645     ok(hr == S_OK, "Expected IDxDiagContainer::GetProp to return S_OK, got 0x%08x\n", hr);
 646     ok(V_VT(&var) != (VT_ARRAY | VT_UI1), "Expected the variant to be modified\n");
 647
 648     hr = SafeArrayUnlock(sa);
 649     ok(hr == S_OK, "Expected SafeArrayUnlock to return S_OK, got 0x%08x\n", hr);
 650     hr = SafeArrayDestroy(sa);
 651     ok(hr == S_OK, "Expected SafeArrayDestroy to return S_OK, got 0x%08x\n", hr);
 652     IDxDiagContainer_Release(child);
 653
 654 cleanup:
 655     IDxDiagContainer_Release(pddc);
 656     IDxDiagProvider_Release(pddp);
 657 }
 658
 659 START_TEST(container)
 660 {
 661     CoInitialize(NULL);
 662     test_GetNumberOfChildContainers();
 663     test_GetNumberOfProps();
 664     test_EnumChildContainerNames();
 665     test_GetChildContainer();
 666     test_dot_parsing();
 667     test_EnumPropNames();
 668     test_GetProp();
 669     CoUninitialize();
 670 }