public void ShouldGetAndAddIntToNativeBuffer(IAtomicBuffer buffer)
{
Marshal.WriteInt32(buffer.BufferPointer, Index, IntValue);
const int delta = 1;
var beforeValue = buffer.GetAndAddInt(Index, delta);
Assert.That(beforeValue, Is.EqualTo(IntValue));
Assert.That(Marshal.ReadInt32(buffer.BufferPointer, Index), Is.EqualTo(IntValue + delta));
}