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from django.db.models import Q
from django.http import Http404
from django.shortcuts import aget_list_or_404, aget_object_or_404
from django.test import TestCase
from .models import RelatedModel, SimpleModel
class GetListObjectOr404Test(TestCase):
@classmethod
def setUpTestData(cls):
cls.s1 = SimpleModel.objects.create(field=0)
cls.s2 = SimpleModel.objects.create(field=1)
cls.r1 = RelatedModel.objects.create(simple=cls.s1)
async def test_aget_object_or_404(self):
self.assertEqual(await aget_object_or_404(SimpleModel, field=1), self.s2)
self.assertEqual(await aget_object_or_404(SimpleModel, Q(field=0)), self.s1)
self.assertEqual(
await aget_object_or_404(SimpleModel.objects.all(), field=1), self.s2
)
self.assertEqual(
await aget_object_or_404(self.s1.relatedmodel_set, pk=self.r1.pk), self.r1
)
# Http404 is returned if the list is empty.
msg = "No SimpleModel matches the given query."
with self.assertRaisesMessage(Http404, msg):
await aget_object_or_404(SimpleModel, field=2)
async def test_get_list_or_404(self):
self.assertEqual(await aget_list_or_404(SimpleModel, field=1), [self.s2])
self.assertEqual(await aget_list_or_404(SimpleModel, Q(field=0)), [self.s1])
self.assertEqual(
await aget_list_or_404(SimpleModel.objects.all(), field=1), [self.s2]
)
self.assertEqual(
await aget_list_or_404(self.s1.relatedmodel_set, pk=self.r1.pk), [self.r1]
)
# Http404 is returned if the list is empty.
msg = "No SimpleModel matches the given query."
with self.assertRaisesMessage(Http404, msg):
await aget_list_or_404(SimpleModel, field=2)
async def test_get_object_or_404_bad_class(self):
msg = (
"First argument to aget_object_or_404() must be a Model, Manager, or "
"QuerySet, not 'str'."
)
with self.assertRaisesMessage(ValueError, msg):
await aget_object_or_404("SimpleModel", field=0)
async def test_get_list_or_404_bad_class(self):
msg = (
"First argument to aget_list_or_404() must be a Model, Manager, or "
"QuerySet, not 'list'."
)
with self.assertRaisesMessage(ValueError, msg):
await aget_list_or_404([SimpleModel], field=1)
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