reactos/rostests/apitests/ntdll/RtlReAllocateHeap.c

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/*
* PROJECT: ReactOS api tests
* LICENSE: LGPLv2.1+ - See COPYING.LIB in the top level directory
* PURPOSE: Test for RtlReAllocateHeap
* PROGRAMMERS: Thomas Faber <thomas.faber@reactos.org>
*/
#include <apitest.h>
#include <ndk/rtlfuncs.h>
static
BOOLEAN
CheckBuffer(
PVOID Buffer,
SIZE_T Size,
UCHAR Value)
{
PUCHAR Array = Buffer;
SIZE_T i;
for (i = 0; i < Size; i++)
if (Array[i] != Value)
{
trace("Expected %x, found %x at offset %lu\n", Value, Array[i], (ULONG)i);
return FALSE;
}
return TRUE;
}
static
BOOLEAN
ReAllocBuffer(
PUCHAR *Buffer,
SIZE_T Size,
SIZE_T *OldSizePtr,
PCSTR Action)
{
PUCHAR NewBuffer;
SIZE_T OldSize = *OldSizePtr;
RtlFillMemory(*Buffer, OldSize, 0x7a);
NewBuffer = RtlReAllocateHeap(RtlGetProcessHeap(),
HEAP_ZERO_MEMORY,
*Buffer,
Size);
if (!NewBuffer)
{
skip("RtlReAllocateHeap failed for size %lu (%s)\n", Size, Action);
return FALSE;
}
*Buffer = NewBuffer;
ok_hex(RtlSizeHeap(RtlGetProcessHeap(), 0, NewBuffer), Size);
if (OldSize < Size)
{
ok(CheckBuffer(NewBuffer, OldSize, 0x7a), "CheckBuffer failed at size 0x%lx -> 0x%lx\n", OldSize, Size);
ok(CheckBuffer(NewBuffer + OldSize, Size - OldSize, 0), "HEAP_ZERO_MEMORY not respected for 0x%lx -> 0x%lx\n", OldSize, Size);
}
else
{
ok(CheckBuffer(NewBuffer, Size, 0x7a), "CheckBuffer failed at size 0x%lx -> 0x%lx\n", OldSize, Size);
}
*OldSizePtr = Size;
return TRUE;
}
START_TEST(RtlReAllocateHeap)
{
PUCHAR Buffer = NULL;
SIZE_T OldSize = 0;
SIZE_T Size;
BOOLEAN Continue = TRUE;
OldSize = 0x100;
Buffer = RtlReAllocateHeap(RtlGetProcessHeap(),
HEAP_ZERO_MEMORY,
NULL,
OldSize);
ok(Buffer == NULL, "RtlReAllocateHeap succeeded for NULL\n");
if (Buffer)
RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
Buffer = RtlAllocateHeap(RtlGetProcessHeap(),
HEAP_ZERO_MEMORY,
OldSize);
if (!Buffer)
{
skip("RtlAllocateHeap failed for size %lu\n", OldSize);
return;
}
ok(CheckBuffer(Buffer, OldSize, 0), "HEAP_ZERO_MEMORY not respected for 0x%lx\n", OldSize);
for (Size = 0x78000; Size < 0x90000 && Continue; Size += 0x100)
{
Continue = ReAllocBuffer(&Buffer, Size, &OldSize, "growing");
}
/* and back again */
for (Size -= 0x100; Size >= 0x78000 && Continue; Size -= 0x100)
{
Continue = ReAllocBuffer(&Buffer, Size, &OldSize, "shrinking");
}
RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
}