41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
from django.db.models import CharField
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from django.db.models.functions import Lower
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from django.test import TestCase
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from django.test.utils import register_lookup
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from ..models import Author
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class LowerTests(TestCase):
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def test_basic(self):
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Author.objects.create(name='John Smith', alias='smithj')
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Author.objects.create(name='Rhonda')
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authors = Author.objects.annotate(lower_name=Lower('name'))
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self.assertQuerysetEqual(
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authors.order_by('name'), ['john smith', 'rhonda'],
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lambda a: a.lower_name
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)
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Author.objects.update(name=Lower('name'))
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self.assertQuerysetEqual(
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authors.order_by('name'), [
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('john smith', 'john smith'),
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('rhonda', 'rhonda'),
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],
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lambda a: (a.lower_name, a.name)
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)
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def test_num_args(self):
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with self.assertRaisesMessage(TypeError, "'Lower' takes exactly 1 argument (2 given)"):
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Author.objects.update(name=Lower('name', 'name'))
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def test_transform(self):
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with register_lookup(CharField, Lower):
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Author.objects.create(name='John Smith', alias='smithj')
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Author.objects.create(name='Rhonda')
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authors = Author.objects.filter(name__lower__exact='john smith')
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self.assertQuerysetEqual(
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authors.order_by('name'), ['John Smith'],
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lambda a: a.name
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)
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