Xcode UI tests - Lost connection to test manager service

Question

Sometimes while running my UI tests, I get the following error Lost connection to test manager services. No logs or anything. Happens randomly. I would provide more information but I just don't have it because of the nature of the error.

Using Xcode 7 beta 5.

Answer 1

The error appear for every async operations made in tests. It can be:

1. Operation on non existing object
2. dispatch_after
3. Network operations with wrongly assign block handler