As long as its not physically damaged I doubt its bad. These take alot of abuse because the location they are in. I usually put some hot glue around them to keep them safe.
Honestly I have no idea how to test these.
I know HOW to test it, I just don't have the equipment to do it. But, yeah, it's physically damaged. A friend of mine has a meter that will test it. I'll post it here as soon as I find out in case anyone else ever needs to order one.
As long as its not physically damaged I doubt its bad. These take alot of abuse because the location they are in. I usually put some hot glue around them to keep them safe.
Honestly I have no idea how to test these.