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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "wine/test.h"
26 /* The following functions don't have tests, because either I don't know how
27 to test them, or they are WinNT only, or require multiple threads.
28 Since the last two issues shouldn't really stop the tests from being
29 written, assume for now that it is all due to the first case
38 /* In addition, these features aren't being tested
40 HEAP_GENERATE_EXCEPTIONS
41 STATUS_ACCESS_VIOLATION (error code from HeapAlloc)
44 static void test_Heap(void)
49 LPVOID mem1,mem1a,mem3;
54 /* Retrieve the page size for this system */
56 GetSystemInfo(&sysInfo);
57 ok(sysInfo.dwPageSize>0,"GetSystemInfo should return a valid page size");
59 /* Create a Heap with a minimum and maximum size */
60 /* Note that Windows and Wine seem to behave a bit differently with respect
61 to memory allocation. In Windows, you can't access all the memory
62 specified in the heap (due to overhead), so choosing a reasonable maximum
63 size for the heap was done mostly by trial-and-error on Win2k. It may need
64 more tweaking for otherWindows variants.
66 memchunk=10*sysInfo.dwPageSize;
67 heap=HeapCreate(0,2*memchunk,5*memchunk);
69 /* Check that HeapCreate allocated the right amount of ram */
71 /* Today HeapCreate seems to return a memory block larger than specified.
72 MSDN says the maximum heap size should be dwMaximumSize rounded up to the
75 mem1=HeapAlloc(heap,0,5*memchunk+1);
76 ok(mem1==NULL,"HeapCreate allocated more Ram than it should have");
78 HeapFree(heap,0,mem1);
82 /* Check that a normal alloc works */
83 mem1=HeapAlloc(heap,0,memchunk);
84 ok(mem1!=NULL,"HeapAlloc failed");
86 ok(HeapSize(heap,0,mem1)>=memchunk, "HeapAlloc should return a big enough memory block");
89 /* Check that a 'zeroing' alloc works */
90 mem2=HeapAlloc(heap,HEAP_ZERO_MEMORY,memchunk);
91 ok(mem2!=NULL,"HeapAlloc failed");
93 ok(HeapSize(heap,0,mem2)>=memchunk,"HeapAlloc should return a big enough memory block");
95 for(i=0;i<memchunk;i++) {
100 ok(!error,"HeapAlloc should have zeroed out it's allocated memory");
103 /* Check that HeapAlloc returns NULL when requested way too much memory */
104 mem3=HeapAlloc(heap,0,5*memchunk);
105 ok(mem3==NULL,"HeapAlloc should return NULL");
107 ok(HeapFree(heap,0,mem3),"HeapFree didn't pass successfully");
110 /* Check that HeapRealloc works */
111 mem2a=HeapReAlloc(heap,HEAP_ZERO_MEMORY,mem2,memchunk+5*sysInfo.dwPageSize);
112 ok(mem2a!=NULL,"HeapReAlloc failed");
114 ok(HeapSize(heap,0,mem2a)>=memchunk+5*sysInfo.dwPageSize,"HeapReAlloc failed");
116 for(i=0;i<5*sysInfo.dwPageSize;i++) {
117 if(mem2a[memchunk+i]!=0) {
121 ok(!error,"HeapReAlloc should have zeroed out it's allocated memory");
124 /* Check that HeapRealloc honours HEAP_REALLOC_IN_PLACE_ONLY */
126 mem1a=HeapReAlloc(heap,HEAP_REALLOC_IN_PLACE_ONLY,mem1,memchunk+sysInfo.dwPageSize);
132 ok(mem1a==NULL || error==0,"HeapReAlloc didn't honour HEAP_REALLOC_IN_PLACE_ONLY");
134 /* Check that HeapFree works correctly */
136 ok(HeapFree(heap,0,mem1a),"HeapFree failed");
138 ok(HeapFree(heap,0,mem1),"HeapFree failed");
141 ok(HeapFree(heap,0,mem2a),"HeapFree failed");
143 ok(HeapFree(heap,0,mem2),"HeapFree failed");
146 /* 0-length buffer */
147 mem1 = HeapAlloc(heap, 0, 0);
148 ok(mem1 != NULL, "Reserved memory");
150 dwSize = HeapSize(heap, 0, mem1);
151 /* should work with 0-length buffer */
152 ok((dwSize >= 0) && (dwSize < 0xFFFFFFFF),
153 "The size of the 0-length buffer");
154 ok(HeapFree(heap, 0, mem1), "Freed the 0-length buffer");
156 /* Check that HeapDestry works */
157 ok(HeapDestroy(heap),"HeapDestroy failed");
160 /* The following functions don't have tests, because either I don't know how
161 to test them, or they are WinNT only, or require multiple threads.
162 Since the last two issues shouldn't really stop the tests from being
163 written, assume for now that it is all due to the first case
168 /* In addition, these features aren't being tested
172 static void test_Global(void)
175 HGLOBAL mem1,mem2,mem2a,mem2b;
180 SetLastError(NO_ERROR);
181 /* Check that a normal alloc works */
182 mem1=GlobalAlloc(0,memchunk);
183 ok(mem1!=NULL,"GlobalAlloc failed");
185 ok(GlobalSize(mem1)>=memchunk, "GlobalAlloc should return a big enough memory block");
188 /* Check that a 'zeroing' alloc works */
189 mem2=GlobalAlloc(GMEM_ZEROINIT,memchunk);
190 ok(mem2!=NULL,"GlobalAlloc failed: error=%ld",GetLastError());
192 ok(GlobalSize(mem2)>=memchunk,"GlobalAlloc should return a big enough memory block");
193 mem2ptr=GlobalLock(mem2);
194 ok(mem2ptr==mem2,"GlobalLock should have returned the same memory as was allocated");
197 for(i=0;i<memchunk;i++) {
202 ok(!error,"GlobalAlloc should have zeroed out it's allocated memory");
205 /* Check that GlobalReAlloc works */
206 /* Check that we can change GMEM_FIXED to GMEM_MOVEABLE */
207 mem2a=GlobalReAlloc(mem2,0,GMEM_MODIFY | GMEM_MOVEABLE);
208 ok(mem2a!=NULL,"GlobalReAlloc failed to convert FIXED to MOVEABLE: error=%ld",GetLastError());
212 mem2ptr=GlobalLock(mem2a);
213 ok(mem2ptr!=NULL && !GlobalUnlock(mem2a)&&GetLastError()==NO_ERROR,
214 "Converting from FIXED to MOVEABLE didn't REALLY work");
216 /* Check that ReAllocing memory works as expected */
217 mem2a=GlobalReAlloc(mem2,2*memchunk,GMEM_MOVEABLE | GMEM_ZEROINIT);
218 ok(mem2a!=NULL,"GlobalReAlloc failed");
220 ok(GlobalSize(mem2a)>=2*memchunk,"GlobalReAlloc failed");
221 mem2ptr=GlobalLock(mem2a);
222 ok(mem2ptr!=NULL,"GlobalLock Failed.");
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");
232 /* Check that GlobalHandle works */
233 mem2b=GlobalHandle(mem2ptr);
234 ok(mem2b==mem2a,"GlobalHandle didn't return the correct memory handle");
236 /* Check that we can't discard locked memory */
237 mem2b=GlobalDiscard(mem2a);
238 ok(mem2b==NULL,"Discarded memory we shouldn't have");
239 ok(!GlobalUnlock(mem2a) && GetLastError()==NO_ERROR,"GlobalUnlock Failed.");
243 ok(GlobalFree(mem1)==NULL,"GlobalFree failed");
246 ok(GlobalFree(mem2a)==NULL,"GlobalFree failed");
248 ok(GlobalFree(mem2)==NULL,"GlobalFree failed");
253 /* The following functions don't have tests, because either I don't know how
254 to test them, or they are WinNT only, or require multiple threads.
255 Since the last two issues shouldn't really stop the tests from being
256 written, assume for now that it is all due to the first case
260 /* In addition, these features aren't being tested
264 static void test_Local(void)
267 HLOCAL mem1,mem2,mem2a,mem2b;
272 /* Check that a normal alloc works */
273 mem1=LocalAlloc(0,memchunk);
274 ok(mem1!=NULL,"LocalAlloc failed: error=%ld",GetLastError());
276 ok(LocalSize(mem1)>=memchunk, "LocalAlloc should return a big enough memory block");
279 /* Check that a 'zeroing' and lock alloc works */
280 mem2=LocalAlloc(LMEM_ZEROINIT|LMEM_MOVEABLE,memchunk);
281 ok(mem2!=NULL,"LocalAlloc failed: error=%ld",GetLastError());
283 ok(LocalSize(mem2)>=memchunk,"LocalAlloc should return a big enough memory block");
284 mem2ptr=LocalLock(mem2);
285 ok(mem2ptr!=NULL,"LocalLock: error=%ld",GetLastError());
288 for(i=0;i<memchunk;i++) {
293 ok(!error,"LocalAlloc should have zeroed out it's allocated memory");
295 error=LocalUnlock(mem2);
296 ok(error==0 && GetLastError()==NO_ERROR,
297 "LocalUnlock Failed: rc=%d err=%ld",error,GetLastError());
300 mem2a=LocalFree(mem2);
301 ok(mem2a==NULL, "LocalFree failed: %p",mem2a);
303 /* Reallocate mem2 as moveable memory */
304 mem2=LocalAlloc(LMEM_MOVEABLE | LMEM_ZEROINIT,memchunk);
305 ok(mem2!=NULL, "LocalAlloc failed to create moveable memory, error=%ld",GetLastError());
307 /* Check that ReAllocing memory works as expected */
308 mem2a=LocalReAlloc(mem2,2*memchunk,LMEM_MOVEABLE | LMEM_ZEROINIT);
309 ok(mem2a!=NULL,"LocalReAlloc failed, error=%ld",GetLastError());
311 ok(LocalSize(mem2a)>=2*memchunk,"LocalReAlloc failed");
312 mem2ptr=LocalLock(mem2a);
313 ok(mem2ptr!=NULL,"LocalLock Failed.");
316 for(i=0;i<memchunk;i++) {
317 if(mem2ptr[memchunk+i]!=0) {
321 ok(!error,"LocalReAlloc should have zeroed out it's allocated memory");
322 /* Check that LocalHandle works */
323 mem2b=LocalHandle(mem2ptr);
324 ok(mem2b==mem2a,"LocalHandle didn't return the correct memory handle");
325 /* Check that we can't discard locked memory */
326 mem2b=LocalDiscard(mem2a);
327 ok(mem2b==NULL,"Discarded memory we shouldn't have");
328 SetLastError(NO_ERROR);
329 ok(!LocalUnlock(mem2a) && GetLastError()==NO_ERROR, "LocalUnlock Failed.");
333 ok(LocalFree(mem1)==NULL,"LocalFree failed");
336 ok(LocalFree(mem2a)==NULL,"LocalFree failed");
338 ok(LocalFree(mem2)==NULL,"LocalFree failed");
342 /* The Virtual* routines are not tested as thoroughly,
343 since I don't really understand how to use them correctly :)
344 The following routines are not tested at all
353 And the only features (flags) being tested are
357 Testing the rest requires using exceptions, which I really don't
360 static void test_Virtual(void)
367 /* Retrieve the page size for this system */
368 sysInfo.dwPageSize=0;
369 GetSystemInfo(&sysInfo);
370 ok(sysInfo.dwPageSize>0,"GetSystemInfo should return a valid page size");
372 /* Choose a reasonable allocation size */
373 memchunk=10*sysInfo.dwPageSize;
375 /* Check that a normal alloc works */
376 mem1=VirtualAlloc(NULL,memchunk,MEM_COMMIT,PAGE_READWRITE);
377 ok(mem1!=NULL,"VirtualAlloc failed");
379 /* check that memory is initialized to 0 */
381 for(i=0;i<memchunk;i++) {
386 ok(!error,"VirtualAlloc did not initialize memory to '0's");
387 /* Check that we can read/write to memory */
389 for(i=0;i<memchunk;i+=100) {
395 ok(!error,"Virtual memory was not writable");
397 ok(VirtualFree(mem1,0,MEM_RELEASE),"VirtualFree failed");