i’m gonna be guessing… that yes, i’m sure they will.
drug testing is about liability. if you don’t drug test, and your guy is a tweaker that steals from your customer, the customer can come back on the company and sue saying the company didn’t perform due diligence in screening their employees.
this is especially important for jobs with any degree of implicit trust or elevated access. such as medical care, in-home repair, being called to assist people unlock doors in remote locations.
if you’re being provided a company vehicle, you can nearly guarantee that there’ll be drug testing.