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66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
from datetime import datetime, timedelta
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from django.db import connection
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from django.db.models import TextField
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from django.db.models.functions import Cast, Now
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from django.test import TestCase
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from django.utils import timezone
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from ..models import Article
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lorem_ipsum = """
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Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
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tempor incididunt ut labore et dolore magna aliqua."""
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class NowTests(TestCase):
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def test_basic(self):
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a1 = Article.objects.create(
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title="How to Django",
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text=lorem_ipsum,
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written=timezone.now(),
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)
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a2 = Article.objects.create(
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title="How to Time Travel",
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text=lorem_ipsum,
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written=timezone.now(),
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)
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num_updated = Article.objects.filter(id=a1.id, published=None).update(
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published=Now()
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)
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self.assertEqual(num_updated, 1)
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num_updated = Article.objects.filter(id=a1.id, published=None).update(
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published=Now()
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)
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self.assertEqual(num_updated, 0)
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a1.refresh_from_db()
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self.assertIsInstance(a1.published, datetime)
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a2.published = Now() + timedelta(days=2)
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a2.save()
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a2.refresh_from_db()
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self.assertIsInstance(a2.published, datetime)
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self.assertQuerySetEqual(
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Article.objects.filter(published__lte=Now()),
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["How to Django"],
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lambda a: a.title,
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)
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self.assertQuerySetEqual(
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Article.objects.filter(published__gt=Now()),
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["How to Time Travel"],
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lambda a: a.title,
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)
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def test_microseconds(self):
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Article.objects.create(
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title="How to Django",
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text=lorem_ipsum,
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written=timezone.now(),
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)
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now_string = (
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Article.objects.annotate(now_string=Cast(Now(), TextField()))
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.get()
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.now_string
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)
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precision = connection.features.time_cast_precision
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self.assertRegex(now_string, rf"^.*\.\d{{1,{precision}}}")
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