Simulating CLLocation Course?

I've been working on an app which crashes every time it gets a course value. I obviously want it to crash whilst attached to my mac, but I develop on an iMac, so can't really take that out in the car with me! Is there any way to simulate the course property of CLLocation?

Alternatively, would I be able to develop on my MacBook too? The certificates/keys needed when setting it all up make me think it's perhaps not the easiest thing to do.