mirror of https://github.com/django/django.git
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"], 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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[
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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(
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TypeError, "'Lower' takes exactly 1 argument (2 given)"
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):
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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"], lambda a: a.name
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)
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