mirror of https://github.com/django/django.git
42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
from django.db.models import CharField
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from django.db.models.functions import LTrim, RTrim, Trim
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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 TrimTests(TestCase):
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def test_trim(self):
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Author.objects.create(name=" John ", alias="j")
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Author.objects.create(name="Rhonda", alias="r")
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authors = Author.objects.annotate(
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ltrim=LTrim("name"),
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rtrim=RTrim("name"),
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trim=Trim("name"),
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)
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self.assertQuerysetEqual(
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authors.order_by("alias"),
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[
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("John ", " John", "John"),
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("Rhonda", "Rhonda", "Rhonda"),
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],
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lambda a: (a.ltrim, a.rtrim, a.trim),
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)
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def test_trim_transform(self):
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Author.objects.create(name=" John ")
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Author.objects.create(name="Rhonda")
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tests = (
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(LTrim, "John "),
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(RTrim, " John"),
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(Trim, "John"),
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)
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for transform, trimmed_name in tests:
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with self.subTest(transform=transform):
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with register_lookup(CharField, transform):
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authors = Author.objects.filter(
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**{"name__%s" % transform.lookup_name: trimmed_name}
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)
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self.assertQuerysetEqual(authors, [" John "], lambda a: a.name)
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