1// Copyright 2006-2008 the V8 project authors. All rights reserved.
2//
3// Tests of the TokenLock class from lock.h
4
5#include <stdlib.h>
6
7#include "v8.h"
8
9#include "platform.h"
10#include "cctest.h"
11
12using namespace ::v8::internal;
13
14
15TEST(VirtualMemory) {
16  OS::SetUp();
17  VirtualMemory* vm = new VirtualMemory(1 * MB);
18  CHECK(vm->IsReserved());
19  void* block_addr = vm->address();
20  size_t block_size = 4 * KB;
21  CHECK(vm->Commit(block_addr, block_size, false));
22  // Check whether we can write to memory.
23  int* addr = static_cast<int*>(block_addr);
24  addr[KB-1] = 2;
25  CHECK(vm->Uncommit(block_addr, block_size));
26  delete vm;
27}
28