added some tests for the aggregated field name.
added some tests for the aggregated field name.

nym/django-drip,nym/django-drip,cloudControl/django-drip,rwillmer/django-drip,alexphelps/django-drip,kronok/django-drip,rwillmer/django-drip,zapier/django-drip,kronok/django-drip,zapier/django-drip,cloudControl/django-drip,alexphelps/django-drip