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37 lines
1.3 KiB
Python
37 lines
1.3 KiB
Python
"""
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The citext PostgreSQL extension supports indexing of case-insensitive text
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strings and thus eliminates the need for operations such as iexact and other
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modifiers to enforce use of an index.
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"""
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from django.db import IntegrityError
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from . import PostgreSQLTestCase
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from .models import CITestModel
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class CITextTestCase(PostgreSQLTestCase):
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@classmethod
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def setUpTestData(cls):
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cls.john = CITestModel.objects.create(
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name='JoHn',
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email='joHn@johN.com',
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description='Average Joe named JoHn',
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)
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def test_equal_lowercase(self):
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"""
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citext removes the need for iexact as the index is case-insensitive.
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"""
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self.assertEqual(CITestModel.objects.filter(name=self.john.name.lower()).count(), 1)
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self.assertEqual(CITestModel.objects.filter(email=self.john.email.lower()).count(), 1)
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self.assertEqual(CITestModel.objects.filter(description=self.john.description.lower()).count(), 1)
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def test_fail_citext_primary_key(self):
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"""
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Creating an entry for a citext field used as a primary key which
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clashes with an existing value isn't allowed.
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"""
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with self.assertRaises(IntegrityError):
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CITestModel.objects.create(name='John')
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