Unit testing with django-celery?

Question

I am trying to come up with a testing methodology for our django-celery project. I have read the notes in the documentation, but it didn't give me a good idea of what to actually do. I am not worried about testing the tasks in the actual daemons, just the functionality of my code. Mainly I am wondering:

1. How can we bypass task.delay() during the test (I tried setting CELERY_ALWAYS_EAGER = True but it made no difference)?
2. How do we use the test settings that are recommended (if that is the best way) without actually changing our settings.py?
3. Can we still use manage.py test or do we have to use a custom runner?

Overall any hints or tips for testing with celery would be very helpful.