61.235 Flight tests for flight crew licences and ratings—prerequisites
Para (2) (c) if the flight test is to be conducted in an aircraft:
(i) the applicant holds a current medical certificate of the class required for the exercise of the privileges of the licence; or
...
(iii) the applicant holds a medical exemption for the exercise of the privileges of the licence.
So the old days of sitting a CPL test holding a class 2 medical - Gone!
Must hold a Class 1 to sit a CPL or ATPL flight test.
Safety case? Not much I would imagine...
But does it matter?
61.240 Consequences of taking flight test when ineligible
An applicant for a flight crew licence or rating is taken not to have passed a flight test if, when the applicant took the flight test, the applicant was not eligible under regulation 61.235 to take the flight test.