OpenSlides/tests/integration/agenda/test_models.py

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from openslides.agenda.models import Item
from openslides.topics.models import Topic
from openslides.utils.test import TestCase
class TestItemManager(TestCase):
def test_get_root_and_children_db_queries(self):
"""
Test that get_root_and_children needs only one db query.
"""
for i in range(10):
Topic.objects.create(title='item{}'.format(i))
with self.assertNumQueries(1):
Item.objects.get_root_and_children()