public void ShouldAddIntOrderedToNativeBuffer(IAtomicBuffer buffer)
{
const int initialValue = 7;
const int increment = 9;
buffer.PutIntOrdered(Index, initialValue);
buffer.AddIntOrdered(Index, increment);
Assert.That(Marshal.ReadInt32(buffer.BufferPointer, Index), Is.EqualTo(initialValue + increment));
}