FCL.050 Recording of flight time
The pilot shall keep a reliable record of the details of all flights flown in a form and manner established by the competent authority.
No mention of tests or how to log it in the regulation
AMC1 FCL.050 Recording of flight time
(1) PIC flight time:
(i) the holder of a licence may log as PIC time all of the flight time
during which he or she is the PIC;
(4) instruction time: a summary of all time logged by an applicant for a
licence or rating as flight instruction, instrument flight instruction,
instrument ground time, etc., may be logged if certified by the
appropriately rated or authorised instructor from whom it was received;
(5) PICUS flight time: provided that the method of supervision is acceptable
to the competent authority, a co-pilot may log as PIC flight time flown as
PICUS when all the duties and functions of PIC on that flight were carried
out in such a way that the intervention of the PIC in the interest of safety
was not required.