v8/test/cctest/test-platform-linux.cc

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// Tests of the TokenLock class from lock.h

#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>  // for usleep()

#include "src/v8.h"

#include "src/base/platform/platform.h"
#include "test/cctest/cctest.h"

using namespace ::v8::internal;


TEST(VirtualMemory) {
  v8::base::VirtualMemory* vm = new v8::base::VirtualMemory(1 * MB);
  CHECK(vm->IsReserved());
  void* block_addr = vm->address();
  size_t block_size = 4 * KB;
  CHECK(vm->Commit(block_addr, block_size, false));
  // Check whether we can write to memory.
  int* addr = static_cast<int*>(block_addr);
  addr[KB-1] = 2;
  CHECK(vm->Uncommit(block_addr, block_size));
  delete vm;
}