Hi CFsupport!
Could you be more precise? If you're looking for simple strength tests, try manual muscle tests for shoulder muscles. If you want to examine specific structures, take a look at the Shoulder Tests at the Physio Video topic where you will find muscle tests as well. If you seek functional movements, check reaching an object at a hight above the head or grasping a seatbelt and fastening it (whole diagonal movement, from flexion-adduction to extension-abduction). Use your imagination and ask the patient which movement was limited some weeks ago.
ilias