def test_add_existing_group(self):
"""Asserts add_group returns non of a group that already
exists in the collection"""
add_group(self._groups_collection, "Fake University")
result = add_group(self._groups_collection, "Fake University")
assert not result
def test_add_nonexistant_group(self):
"""Asserts add_group returns ObjectID of a group that doesn't
already exist in the collection"""
result = add_group(self._groups_collection, "Fake University")
assert self._groups_collection.find_one(({"group_name": "Fake University"}))["_id"]
