2 * Unit test suite for memory allocation functions.
4 * Copyright 2002 Geoffrey Hausheer
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.
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.
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
23 #include "wine/test.h"
29 /* The following functions don't have tests, because either I don't know how
30 to test them, or they are WinNT only, or require multiple threads.
31 Since the last two issues shouldn't really stop the tests from being
32 written, assume for now that it is all due to the first case
41 /* In addition, these features aren't being tested
43 HEAP_GENERATE_EXCEPTIONS
44 STATUS_ACCESS_VIOLATION (error code from HeapAlloc)
47 static void test_Heap(void)
52 LPVOID mem1,mem1a,mem3;
57 /* Retrieve the page size for this system */
59 GetSystemInfo(&sysInfo);
60 ok(sysInfo.dwPageSize>0,"GetSystemInfo should return a valid page size\n");
62 /* Create a Heap with a minimum and maximum size */
63 /* Note that Windows and Wine seem to behave a bit differently with respect
64 to memory allocation. In Windows, you can't access all the memory
65 specified in the heap (due to overhead), so choosing a reasonable maximum
66 size for the heap was done mostly by trial-and-error on Win2k. It may need
67 more tweaking for otherWindows variants.
69 memchunk=10*sysInfo.dwPageSize;
70 heap=HeapCreate(0,2*memchunk,5*memchunk);
72 /* Check that HeapCreate allocated the right amount of ram */
74 /* Today HeapCreate seems to return a memory block larger than specified.
75 MSDN says the maximum heap size should be dwMaximumSize rounded up to the
78 mem1=HeapAlloc(heap,0,5*memchunk+1);
79 ok(mem1==NULL,"HeapCreate allocated more Ram than it should have\n");
80 HeapFree(heap,0,mem1);
83 /* Check that a normal alloc works */
84 mem1=HeapAlloc(heap,0,memchunk);
85 ok(mem1!=NULL,"HeapAlloc failed\n");
87 ok(HeapSize(heap,0,mem1)>=memchunk, "HeapAlloc should return a big enough memory block\n");
90 /* Check that a 'zeroing' alloc works */
91 mem2=HeapAlloc(heap,HEAP_ZERO_MEMORY,memchunk);
92 ok(mem2!=NULL,"HeapAlloc failed\n");
94 ok(HeapSize(heap,0,mem2)>=memchunk,"HeapAlloc should return a big enough memory block\n");
96 for(i=0;i<memchunk;i++) {
101 ok(!error,"HeapAlloc should have zeroed out it's allocated memory\n");
104 /* Check that HeapAlloc returns NULL when requested way too much memory */
105 mem3=HeapAlloc(heap,0,5*memchunk);
106 ok(mem3==NULL,"HeapAlloc should return NULL\n");
108 ok(HeapFree(heap,0,mem3),"HeapFree didn't pass successfully\n");
111 /* Check that HeapRealloc works */
112 mem2a=HeapReAlloc(heap,HEAP_ZERO_MEMORY,mem2,memchunk+5*sysInfo.dwPageSize);
113 ok(mem2a!=NULL,"HeapReAlloc failed\n");
115 ok(HeapSize(heap,0,mem2a)>=memchunk+5*sysInfo.dwPageSize,"HeapReAlloc failed\n");
117 for(i=0;i<5*sysInfo.dwPageSize;i++) {
118 if(mem2a[memchunk+i]!=0) {
122 ok(!error,"HeapReAlloc should have zeroed out it's allocated memory\n");
125 /* Check that HeapRealloc honours HEAP_REALLOC_IN_PLACE_ONLY */
127 mem1a=HeapReAlloc(heap,HEAP_REALLOC_IN_PLACE_ONLY,mem1,memchunk+sysInfo.dwPageSize);
133 ok(mem1a==NULL || error==0,"HeapReAlloc didn't honour HEAP_REALLOC_IN_PLACE_ONLY\n");
135 /* Check that HeapFree works correctly */
137 ok(HeapFree(heap,0,mem1a),"HeapFree failed\n");
139 ok(HeapFree(heap,0,mem1),"HeapFree failed\n");
142 ok(HeapFree(heap,0,mem2a),"HeapFree failed\n");
144 ok(HeapFree(heap,0,mem2),"HeapFree failed\n");
147 /* 0-length buffer */
148 mem1 = HeapAlloc(heap, 0, 0);
149 ok(mem1 != NULL, "Reserved memory\n");
151 dwSize = HeapSize(heap, 0, mem1);
152 /* should work with 0-length buffer */
153 ok((dwSize >= 0) && (dwSize < 0xFFFFFFFF),
154 "The size of the 0-length buffer\n");
155 ok(HeapFree(heap, 0, mem1), "Freed the 0-length buffer\n");
157 /* Check that HeapDestry works */
158 ok(HeapDestroy(heap),"HeapDestroy failed\n");
161 /* The following functions don't have tests, because either I don't know how
162 to test them, or they are WinNT only, or require multiple threads.
163 Since the last two issues shouldn't really stop the tests from being
164 written, assume for now that it is all due to the first case
169 /* In addition, these features aren't being tested
173 static void test_Global(void)
176 HGLOBAL mem1,mem2,mem2a,mem2b;
181 SetLastError(NO_ERROR);
182 /* Check that a normal alloc works */
183 mem1=GlobalAlloc(0,memchunk);
184 ok(mem1!=NULL,"GlobalAlloc failed\n");
186 ok(GlobalSize(mem1)>=memchunk, "GlobalAlloc should return a big enough memory block\n");
189 /* Check that a 'zeroing' alloc works */
190 mem2=GlobalAlloc(GMEM_ZEROINIT,memchunk);
191 ok(mem2!=NULL,"GlobalAlloc failed: error=%d\n",GetLastError());
193 ok(GlobalSize(mem2)>=memchunk,"GlobalAlloc should return a big enough memory block\n");
194 mem2ptr=GlobalLock(mem2);
195 ok(mem2ptr==mem2,"GlobalLock should have returned the same memory as was allocated\n");
198 for(i=0;i<memchunk;i++) {
203 ok(!error,"GlobalAlloc should have zeroed out it's allocated memory\n");
206 /* Check that GlobalReAlloc works */
207 /* Check that we can change GMEM_FIXED to GMEM_MOVEABLE */
208 mem2a=GlobalReAlloc(mem2,0,GMEM_MODIFY | GMEM_MOVEABLE);
211 mem2ptr=GlobalLock(mem2a);
212 ok(mem2ptr!=NULL && !GlobalUnlock(mem2a)&&GetLastError()==NO_ERROR,
213 "Converting from FIXED to MOVEABLE didn't REALLY work\n");
216 /* Check that ReAllocing memory works as expected */
217 mem2a=GlobalReAlloc(mem2,2*memchunk,GMEM_MOVEABLE | GMEM_ZEROINIT);
218 ok(mem2a!=NULL,"GlobalReAlloc failed\n");
220 ok(GlobalSize(mem2a)>=2*memchunk,"GlobalReAlloc failed\n");
221 mem2ptr=GlobalLock(mem2a);
222 ok(mem2ptr!=NULL,"GlobalLock Failed\n");
225 for(i=0;i<memchunk;i++) {
226 if(mem2ptr[memchunk+i]!=0) {
230 ok(!error,"GlobalReAlloc should have zeroed out it's allocated memory\n");
232 /* Check that GlobalHandle works */
233 mem2b=GlobalHandle(mem2ptr);
234 ok(mem2b==mem2a,"GlobalHandle didn't return the correct memory handle\n");
236 /* Check that we can't discard locked memory */
237 mem2b=GlobalDiscard(mem2a);
239 ok(!GlobalUnlock(mem2a) && GetLastError()==NO_ERROR,"GlobalUnlock Failed\n");
244 ok(GlobalFree(mem1)==NULL,"GlobalFree failed\n");
247 ok(GlobalFree(mem2a)==NULL,"GlobalFree failed\n");
249 ok(GlobalFree(mem2)==NULL,"GlobalFree failed\n");
254 /* The following functions don't have tests, because either I don't know how
255 to test them, or they are WinNT only, or require multiple threads.
256 Since the last two issues shouldn't really stop the tests from being
257 written, assume for now that it is all due to the first case
261 /* In addition, these features aren't being tested
265 static void test_Local(void)
268 HLOCAL mem1,mem2,mem2a,mem2b;
273 /* Check that a normal alloc works */
274 mem1=LocalAlloc(0,memchunk);
275 ok(mem1!=NULL,"LocalAlloc failed: error=%d\n",GetLastError());
277 ok(LocalSize(mem1)>=memchunk, "LocalAlloc should return a big enough memory block\n");
280 /* Check that a 'zeroing' and lock alloc works */
281 mem2=LocalAlloc(LMEM_ZEROINIT|LMEM_MOVEABLE,memchunk);
282 ok(mem2!=NULL,"LocalAlloc failed: error=%d\n",GetLastError());
284 ok(LocalSize(mem2)>=memchunk,"LocalAlloc should return a big enough memory block\n");
285 mem2ptr=LocalLock(mem2);
286 ok(mem2ptr!=NULL,"LocalLock: error=%d\n",GetLastError());
289 for(i=0;i<memchunk;i++) {
294 ok(!error,"LocalAlloc should have zeroed out it's allocated memory\n");
296 error=LocalUnlock(mem2);
297 ok(error==0 && GetLastError()==NO_ERROR,
298 "LocalUnlock Failed: rc=%d err=%d\n",error,GetLastError());
301 mem2a=LocalFree(mem2);
302 ok(mem2a==NULL, "LocalFree failed: %p\n",mem2a);
304 /* Reallocate mem2 as moveable memory */
305 mem2=LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT,memchunk);
306 ok(mem2!=NULL, "LocalAlloc failed to create moveable memory, error=%d\n",GetLastError());
308 /* Check that ReAllocing memory works as expected */
309 mem2a=LocalReAlloc(mem2,2*memchunk,LMEM_MOVEABLE | LMEM_ZEROINIT);
310 ok(mem2a!=NULL,"LocalReAlloc failed, error=%d\n",GetLastError());
312 ok(LocalSize(mem2a)>=2*memchunk,"LocalReAlloc failed\n");
313 mem2ptr=LocalLock(mem2a);
314 ok(mem2ptr!=NULL,"LocalLock Failed\n");
317 for(i=0;i<memchunk;i++) {
318 if(mem2ptr[memchunk+i]!=0) {
322 ok(!error,"LocalReAlloc should have zeroed out it's allocated memory\n");
323 /* Check that LocalHandle works */
324 mem2b=LocalHandle(mem2ptr);
325 ok(mem2b==mem2a,"LocalHandle didn't return the correct memory handle\n");
326 /* Check that we can't discard locked memory */
327 mem2b=LocalDiscard(mem2a);
328 ok(mem2b==NULL,"Discarded memory we shouldn't have\n");
329 SetLastError(NO_ERROR);
330 ok(!LocalUnlock(mem2a) && GetLastError()==NO_ERROR, "LocalUnlock Failed\n");
334 ok(LocalFree(mem1)==NULL,"LocalFree failed\n");
337 ok(LocalFree(mem2a)==NULL,"LocalFree failed\n");
339 ok(LocalFree(mem2)==NULL,"LocalFree failed\n");
343 /* The Virtual* routines are not tested as thoroughly,
344 since I don't really understand how to use them correctly :)
345 The following routines are not tested at all
354 And the only features (flags) being tested are
358 Testing the rest requires using exceptions, which I really don't
361 static void test_Virtual(void)
368 /* Retrieve the page size for this system */
369 sysInfo.dwPageSize=0;
370 GetSystemInfo(&sysInfo);
371 ok(sysInfo.dwPageSize>0,"GetSystemInfo should return a valid page size\n");
373 /* Choose a reasonable allocation size */
374 memchunk=10*sysInfo.dwPageSize;
376 /* Check that a normal alloc works */
377 mem1=VirtualAlloc(NULL,memchunk,MEM_COMMIT,PAGE_READWRITE);
378 ok(mem1!=NULL,"VirtualAlloc failed\n");
380 /* check that memory is initialized to 0 */
382 for(i=0;i<memchunk;i++) {
387 ok(!error,"VirtualAlloc did not initialize memory to '0's\n");
388 /* Check that we can read/write to memory */
390 for(i=0;i<memchunk;i+=100) {
396 ok(!error,"Virtual memory was not writable\n");
398 ok(VirtualFree(mem1,0,MEM_RELEASE),"VirtualFree failed\n");