I am sure the Buddha would have considered the view of "extreme metaphysical nihilism" i.e. a view that "nothing is real" as false. 

I am defining "extreme metaphysical nihilism" as the belief that "nothing is real". 

I do not know if the belief that "nothing is real" is (also) called something else but if it is then please tell me. 

I consider the view that "nothing is real" as false. 

A refutation of the view that "nothing is real" is that consciousness is observably real in the distinguishing and judging of real or unreal. Mental suffering may be verified as real by observing that it exists in reality as what it is deemed to be. 

Did the Buddha ever refute the view of "extreme metaphysical nihilism" i.e. a view that "nothing is real"?