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from django.test import TestCase
from .models import Comment, Tenant, User
class CompositePKDeleteTests(TestCase):
maxDiff = None
@classmethod
def setUpTestData(cls):
cls.tenant_1 = Tenant.objects.create()
cls.tenant_2 = Tenant.objects.create()
cls.user_1 = User.objects.create(
tenant=cls.tenant_1,
id=1,
email="user0001@example.com",
)
cls.user_2 = User.objects.create(
tenant=cls.tenant_2,
id=2,
email="user0002@example.com",
)
cls.comment_1 = Comment.objects.create(id=1, user=cls.user_1)
cls.comment_2 = Comment.objects.create(id=2, user=cls.user_2)
cls.comment_3 = Comment.objects.create(id=3, user=cls.user_2)
def test_delete_tenant_by_pk(self):
result = Tenant.objects.filter(pk=self.tenant_1.pk).delete()
self.assertEqual(
result,
(
3,
{
"composite_pk.Comment": 1,
"composite_pk.User": 1,
"composite_pk.Tenant": 1,
},
),
)
self.assertIs(Tenant.objects.filter(pk=self.tenant_1.pk).exists(), False)
self.assertIs(Tenant.objects.filter(pk=self.tenant_2.pk).exists(), True)
self.assertIs(User.objects.filter(pk=self.user_1.pk).exists(), False)
self.assertIs(User.objects.filter(pk=self.user_2.pk).exists(), True)
self.assertIs(Comment.objects.filter(pk=self.comment_1.pk).exists(), False)
self.assertIs(Comment.objects.filter(pk=self.comment_2.pk).exists(), True)
self.assertIs(Comment.objects.filter(pk=self.comment_3.pk).exists(), True)
def test_delete_user_by_pk(self):
result = User.objects.filter(pk=self.user_1.pk).delete()
self.assertEqual(
result, (2, {"composite_pk.User": 1, "composite_pk.Comment": 1})
)
self.assertIs(User.objects.filter(pk=self.user_1.pk).exists(), False)
self.assertIs(User.objects.filter(pk=self.user_2.pk).exists(), True)
self.assertIs(Comment.objects.filter(pk=self.comment_1.pk).exists(), False)
self.assertIs(Comment.objects.filter(pk=self.comment_2.pk).exists(), True)
self.assertIs(Comment.objects.filter(pk=self.comment_3.pk).exists(), True)
def test_delete_comments_by_user(self):
result = Comment.objects.filter(user=self.user_2).delete()
self.assertEqual(result, (2, {"composite_pk.Comment": 2}))
self.assertIs(Comment.objects.filter(pk=self.comment_1.pk).exists(), True)
self.assertIs(Comment.objects.filter(pk=self.comment_2.pk).exists(), False)
self.assertIs(Comment.objects.filter(pk=self.comment_3.pk).exists(), False)
def test_delete_without_pk(self):
msg = (
"Comment object can't be deleted because its pk attribute is set "
"to None."
)
with self.assertRaisesMessage(ValueError, msg):
Comment().delete()
with self.assertRaisesMessage(ValueError, msg):
Comment(tenant_id=1).delete()
with self.assertRaisesMessage(ValueError, msg):
Comment(id=1).delete()
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