mirror of https://github.com/django/django.git
62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
from django.test import TestCase
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from .models import (
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CompetingTeam,
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Event,
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Group,
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IndividualCompetitor,
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Membership,
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Person,
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)
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class MultiTableTests(TestCase):
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@classmethod
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def setUpTestData(cls):
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cls.alice = Person.objects.create(name="Alice")
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cls.bob = Person.objects.create(name="Bob")
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cls.chris = Person.objects.create(name="Chris")
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cls.dan = Person.objects.create(name="Dan")
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cls.team_alpha = Group.objects.create(name="Alpha")
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Membership.objects.create(person=cls.alice, group=cls.team_alpha)
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Membership.objects.create(person=cls.bob, group=cls.team_alpha)
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cls.event = Event.objects.create(name="Exposition Match")
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IndividualCompetitor.objects.create(event=cls.event, person=cls.chris)
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IndividualCompetitor.objects.create(event=cls.event, person=cls.dan)
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CompetingTeam.objects.create(event=cls.event, team=cls.team_alpha)
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def test_m2m_query(self):
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result = self.event.teams.all()
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self.assertCountEqual(result, [self.team_alpha])
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def test_m2m_reverse_query(self):
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result = self.chris.event_set.all()
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self.assertCountEqual(result, [self.event])
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def test_m2m_query_proxied(self):
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result = self.event.special_people.all()
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self.assertCountEqual(result, [self.chris, self.dan])
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def test_m2m_reverse_query_proxied(self):
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result = self.chris.special_event_set.all()
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self.assertCountEqual(result, [self.event])
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def test_m2m_prefetch_proxied(self):
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result = Event.objects.filter(name="Exposition Match").prefetch_related(
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"special_people"
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)
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with self.assertNumQueries(2):
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self.assertCountEqual(result, [self.event])
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self.assertEqual(
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sorted(p.name for p in result[0].special_people.all()), ["Chris", "Dan"]
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)
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def test_m2m_prefetch_reverse_proxied(self):
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result = Person.objects.filter(name="Dan").prefetch_related("special_event_set")
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with self.assertNumQueries(2):
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self.assertCountEqual(result, [self.dan])
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self.assertEqual(
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[event.name for event in result[0].special_event_set.all()],
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["Exposition Match"],
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)
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