As an examiner I must disagree with BEagle. I expect the candidate to ask for ice checks during the IMC flight test for the very reasons stated by excrab. At some time during the test, even in the height of summer, I will respond to one of the ice checks by telling the candidate that a quantity of ice has accumulated on the leading edge of the wings. As soon as the candidate states what action (s)he would take the “ice” disappears and the flight can continue as planned.
Expecting an ice check in an aircraft that is not cleared for flight in any form of icing conditions is no different to the check of undercarriage in the standard BUMFFICH pre-landing checks when flying an aircraft with fixed undercarriage.