Heartlessly going off copper, ditching most adorable AI check (6,4)

I believe the answer is:

turing test

I'm a little stuck... Click here to teach me more about this clue!

'ditching most adorable ai check' is the definition.
I can't tell whether this definition defines the answer.

'heartlessly going off copper' is the wordplay.
'heartlessly' suggests removing the centre.
'going' becomes 'turning' (turning is a kind of going).
'off copper' becomes 'test' (I can't justify this - if you can you should believe this answer much more).
'turning' with its centre taken out is 'turing'.
'turing'+'test'='TURING TEST'

Can you help me to learn more?

(Another definition for turing test that I've seen is " Anthropomorphic trial".)

I've seen this clue in the Sydney Morning Herald.

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