mirror of https://github.com/django/django.git
88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
import datetime
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import json
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from django import forms
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from django.core import exceptions, serializers
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from django.db import models
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from django.test import SimpleTestCase, TestCase
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from .models import DurationModel, NullDurationModel
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class TestSaveLoad(TestCase):
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def test_simple_roundtrip(self):
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duration = datetime.timedelta(microseconds=8999999999999999)
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DurationModel.objects.create(field=duration)
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loaded = DurationModel.objects.get()
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self.assertEqual(loaded.field, duration)
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def test_create_empty(self):
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NullDurationModel.objects.create()
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loaded = NullDurationModel.objects.get()
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self.assertIsNone(loaded.field)
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def test_fractional_seconds(self):
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value = datetime.timedelta(seconds=2.05)
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d = DurationModel.objects.create(field=value)
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d.refresh_from_db()
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self.assertEqual(d.field, value)
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class TestQuerying(TestCase):
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@classmethod
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def setUpTestData(cls):
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cls.objs = [
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DurationModel.objects.create(field=datetime.timedelta(days=1)),
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DurationModel.objects.create(field=datetime.timedelta(seconds=1)),
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DurationModel.objects.create(field=datetime.timedelta(seconds=-1)),
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]
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def test_exact(self):
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self.assertSequenceEqual(
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DurationModel.objects.filter(field=datetime.timedelta(days=1)),
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[self.objs[0]],
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)
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def test_gt(self):
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self.assertCountEqual(
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DurationModel.objects.filter(field__gt=datetime.timedelta(days=0)),
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[self.objs[0], self.objs[1]],
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)
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class TestSerialization(SimpleTestCase):
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test_data = (
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'[{"fields": {"field": "1 01:00:00"}, "model": "model_fields.durationmodel", '
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'"pk": null}]'
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)
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def test_dumping(self):
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instance = DurationModel(field=datetime.timedelta(days=1, hours=1))
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data = serializers.serialize("json", [instance])
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self.assertEqual(json.loads(data), json.loads(self.test_data))
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def test_loading(self):
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instance = list(serializers.deserialize("json", self.test_data))[0].object
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self.assertEqual(instance.field, datetime.timedelta(days=1, hours=1))
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class TestValidation(SimpleTestCase):
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def test_invalid_string(self):
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field = models.DurationField()
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with self.assertRaises(exceptions.ValidationError) as cm:
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field.clean("not a datetime", None)
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self.assertEqual(cm.exception.code, "invalid")
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self.assertEqual(
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cm.exception.message % cm.exception.params,
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"“not a datetime” value has an invalid format. "
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"It must be in [DD] [[HH:]MM:]ss[.uuuuuu] format.",
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)
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class TestFormField(SimpleTestCase):
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# Tests for forms.DurationField are in the forms_tests app.
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def test_formfield(self):
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field = models.DurationField()
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self.assertIsInstance(field.formfield(), forms.DurationField)
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