Marcel, I respectfully disagree.
Looking at the standards of practice established for fire door inspections:
It is not the purpose of this standard to establish inspection procedures to determine the fire rating or the degree of protection provided by a fire door or surrounding wall, determine the need for a fire door in any particular location, determine proper placement of detectors, determine the functionality of fire detection systems, heat test fusible links, determine the combustibility of floor coverings extending through doorways, inspect accordion, folding, hoistway, elevator, chute, access, or dumbwaiter doors, inspect fire windows, or inspect fabric fire safety curtains.
IMO, activating the fire alarm system to test fire doors goes beyond (most) of our knowledge and expertise. A fire alarm company is most likely testing these devices when they conduct their inspections of the system. Verify it through documentation. If it isn’t documented, advise your client that they need to have this done by a qualified fire alarm testing company, or (even if it has previously been done and this is for a commercial real estate transaction) suggest that they have it done by an independent, qualified fire alarm testing company to verify the previous vendors findings. IMO, our role in regards to the functional testing of fire doors is essentially to verify the operation of the fire door(s) once released from the door holding mechanism, resetting the fire door(s) back into the ready state, and documenting the findings.
Just my 2 cents.