41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
from django.test import TransactionTestCase
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from polymorphic.models import PolymorphicTypeUndefined
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from polymorphic.tests.models import Model2A, Model2B, Model2C, Model2D
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from polymorphic.utils import reset_polymorphic_ctype, sort_by_subclass
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class UtilsTests(TransactionTestCase):
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def test_sort_by_subclass(self):
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self.assertEqual(
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sort_by_subclass(Model2D, Model2B, Model2D, Model2A, Model2C),
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[Model2A, Model2B, Model2C, Model2D, Model2D]
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)
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def test_reset_polymorphic_ctype(self):
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"""
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Test the the polymorphic_ctype_id can be restored.
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"""
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Model2A.objects.create(field1='A1')
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Model2D.objects.create(field1='A1', field2='B2', field3='C3', field4='D4')
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Model2B.objects.create(field1='A1', field2='B2')
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Model2B.objects.create(field1='A1', field2='B2')
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Model2A.objects.all().update(polymorphic_ctype_id=None)
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with self.assertRaises(PolymorphicTypeUndefined):
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list(Model2A.objects.all())
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reset_polymorphic_ctype(Model2D, Model2B, Model2D, Model2A, Model2C)
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self.assertQuerysetEqual(
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Model2A.objects.order_by("pk"),
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[
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Model2A,
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Model2D,
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Model2B,
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Model2B,
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],
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transform=lambda o: o.__class__,
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)
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