mirror of
https://github.com/django/django.git
synced 2024-12-23 17:46:27 +00:00
259 lines
9.2 KiB
Python
259 lines
9.2 KiB
Python
import datetime
|
|
from operator import attrgetter
|
|
|
|
from django.core.exceptions import ValidationError
|
|
from django.db import models, router
|
|
from django.db.models.sql import InsertQuery
|
|
from django.test import TestCase, skipUnlessDBFeature
|
|
from django.test.utils import isolate_apps
|
|
from django.utils.timezone import get_fixed_timezone
|
|
|
|
from .models import (
|
|
Article, Department, Event, Model1, Model2, Model3, NonAutoPK, Party,
|
|
Worker,
|
|
)
|
|
|
|
|
|
class ModelTests(TestCase):
|
|
def test_model_init_too_many_args(self):
|
|
msg = "Number of args exceeds number of fields"
|
|
with self.assertRaisesMessage(IndexError, msg):
|
|
Worker(1, 2, 3, 4)
|
|
|
|
# The bug is that the following queries would raise:
|
|
# "TypeError: Related Field has invalid lookup: gte"
|
|
def test_related_gte_lookup(self):
|
|
"""
|
|
Regression test for #10153: foreign key __gte lookups.
|
|
"""
|
|
Worker.objects.filter(department__gte=0)
|
|
|
|
def test_related_lte_lookup(self):
|
|
"""
|
|
Regression test for #10153: foreign key __lte lookups.
|
|
"""
|
|
Worker.objects.filter(department__lte=0)
|
|
|
|
def test_sql_insert_compiler_return_id_attribute(self):
|
|
"""
|
|
Regression test for #14019: SQLInsertCompiler.as_sql() failure
|
|
"""
|
|
db = router.db_for_write(Party)
|
|
query = InsertQuery(Party)
|
|
query.insert_values([Party._meta.fields[0]], [], raw=False)
|
|
# this line will raise an AttributeError without the accompanying fix
|
|
query.get_compiler(using=db).as_sql()
|
|
|
|
def test_empty_choice(self):
|
|
# NOTE: Part of the regression test here is merely parsing the model
|
|
# declaration. The verbose_name, in particular, did not always work.
|
|
a = Article.objects.create(
|
|
headline="Look at me!", pub_date=datetime.datetime.now()
|
|
)
|
|
# An empty choice field should return None for the display name.
|
|
self.assertIs(a.get_status_display(), None)
|
|
|
|
# Empty strings should be returned as string
|
|
a = Article.objects.get(pk=a.pk)
|
|
self.assertEqual(a.misc_data, '')
|
|
|
|
def test_long_textfield(self):
|
|
# TextFields can hold more than 4000 characters (this was broken in
|
|
# Oracle).
|
|
a = Article.objects.create(
|
|
headline="Really, really big",
|
|
pub_date=datetime.datetime.now(),
|
|
article_text="ABCDE" * 1000
|
|
)
|
|
a = Article.objects.get(pk=a.pk)
|
|
self.assertEqual(len(a.article_text), 5000)
|
|
|
|
def test_long_unicode_textfield(self):
|
|
# TextFields can hold more than 4000 bytes also when they are
|
|
# less than 4000 characters
|
|
a = Article.objects.create(
|
|
headline="Really, really big",
|
|
pub_date=datetime.datetime.now(),
|
|
article_text='\u05d0\u05d1\u05d2' * 1000
|
|
)
|
|
a = Article.objects.get(pk=a.pk)
|
|
self.assertEqual(len(a.article_text), 3000)
|
|
|
|
def test_date_lookup(self):
|
|
# Regression test for #659
|
|
Party.objects.create(when=datetime.datetime(1999, 12, 31))
|
|
Party.objects.create(when=datetime.datetime(1998, 12, 31))
|
|
Party.objects.create(when=datetime.datetime(1999, 1, 1))
|
|
Party.objects.create(when=datetime.datetime(1, 3, 3))
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__month=2), []
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__month=1), [
|
|
datetime.date(1999, 1, 1)
|
|
],
|
|
attrgetter("when")
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__month=12), [
|
|
datetime.date(1999, 12, 31),
|
|
datetime.date(1998, 12, 31),
|
|
],
|
|
attrgetter("when"),
|
|
ordered=False
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__year=1998), [
|
|
datetime.date(1998, 12, 31),
|
|
],
|
|
attrgetter("when")
|
|
)
|
|
# Regression test for #8510
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__day="31"), [
|
|
datetime.date(1999, 12, 31),
|
|
datetime.date(1998, 12, 31),
|
|
],
|
|
attrgetter("when"),
|
|
ordered=False
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__month="12"), [
|
|
datetime.date(1999, 12, 31),
|
|
datetime.date(1998, 12, 31),
|
|
],
|
|
attrgetter("when"),
|
|
ordered=False
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__year="1998"), [
|
|
datetime.date(1998, 12, 31),
|
|
],
|
|
attrgetter("when")
|
|
)
|
|
|
|
# Regression test for #18969
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__year=1), [
|
|
datetime.date(1, 3, 3),
|
|
],
|
|
attrgetter("when")
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(when__year='1'), [
|
|
datetime.date(1, 3, 3),
|
|
],
|
|
attrgetter("when")
|
|
)
|
|
|
|
def test_date_filter_null(self):
|
|
# Date filtering was failing with NULL date values in SQLite
|
|
# (regression test for #3501, among other things).
|
|
Party.objects.create(when=datetime.datetime(1999, 1, 1))
|
|
Party.objects.create()
|
|
p = Party.objects.filter(when__month=1)[0]
|
|
self.assertEqual(p.when, datetime.date(1999, 1, 1))
|
|
self.assertQuerysetEqual(
|
|
Party.objects.filter(pk=p.pk).dates("when", "month"), [
|
|
1
|
|
],
|
|
attrgetter("month")
|
|
)
|
|
|
|
def test_get_next_prev_by_field(self):
|
|
# get_next_by_FIELD() and get_previous_by_FIELD() don't crash when
|
|
# microseconds values are stored in the database.
|
|
Event.objects.create(when=datetime.datetime(2000, 1, 1, 16, 0, 0))
|
|
Event.objects.create(when=datetime.datetime(2000, 1, 1, 6, 1, 1))
|
|
Event.objects.create(when=datetime.datetime(2000, 1, 1, 13, 1, 1))
|
|
e = Event.objects.create(when=datetime.datetime(2000, 1, 1, 12, 0, 20, 24))
|
|
self.assertEqual(
|
|
e.get_next_by_when().when, datetime.datetime(2000, 1, 1, 13, 1, 1)
|
|
)
|
|
self.assertEqual(
|
|
e.get_previous_by_when().when, datetime.datetime(2000, 1, 1, 6, 1, 1)
|
|
)
|
|
|
|
def test_get_next_prev_by_field_unsaved(self):
|
|
msg = 'get_next/get_previous cannot be used on unsaved objects.'
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
Event().get_next_by_when()
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
Event().get_previous_by_when()
|
|
|
|
def test_primary_key_foreign_key_types(self):
|
|
# Check Department and Worker (non-default PK type)
|
|
d = Department.objects.create(id=10, name="IT")
|
|
w = Worker.objects.create(department=d, name="Full-time")
|
|
self.assertEqual(str(w), "Full-time")
|
|
|
|
@skipUnlessDBFeature("supports_timezones")
|
|
def test_timezones(self):
|
|
# Saving and updating with timezone-aware datetime Python objects.
|
|
# Regression test for #10443.
|
|
# The idea is that all these creations and saving should work without
|
|
# crashing. It's not rocket science.
|
|
dt1 = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=get_fixed_timezone(600))
|
|
dt2 = datetime.datetime(2008, 8, 31, 17, 20, tzinfo=get_fixed_timezone(600))
|
|
obj = Article.objects.create(
|
|
headline="A headline", pub_date=dt1, article_text="foo"
|
|
)
|
|
obj.pub_date = dt2
|
|
obj.save()
|
|
self.assertEqual(
|
|
Article.objects.filter(headline="A headline").update(pub_date=dt1),
|
|
1
|
|
)
|
|
|
|
def test_chained_fks(self):
|
|
"""
|
|
Regression for #18432: Chained foreign keys with to_field produce incorrect query
|
|
"""
|
|
|
|
m1 = Model1.objects.create(pkey=1000)
|
|
m2 = Model2.objects.create(model1=m1)
|
|
m3 = Model3.objects.create(model2=m2)
|
|
|
|
# this is the actual test for #18432
|
|
m3 = Model3.objects.get(model2=1000)
|
|
m3.model2
|
|
|
|
@isolate_apps('model_regress')
|
|
def test_metaclass_can_access_attribute_dict(self):
|
|
"""
|
|
Model metaclasses have access to the class attribute dict in
|
|
__init__() (#30254).
|
|
"""
|
|
class HorseBase(models.base.ModelBase):
|
|
def __init__(cls, name, bases, attrs):
|
|
super(HorseBase, cls).__init__(name, bases, attrs)
|
|
cls.horns = (1 if 'magic' in attrs else 0)
|
|
|
|
class Horse(models.Model, metaclass=HorseBase):
|
|
name = models.CharField(max_length=255)
|
|
magic = True
|
|
|
|
self.assertEqual(Horse.horns, 1)
|
|
|
|
|
|
class ModelValidationTest(TestCase):
|
|
def test_pk_validation(self):
|
|
NonAutoPK.objects.create(name="one")
|
|
again = NonAutoPK(name="one")
|
|
with self.assertRaises(ValidationError):
|
|
again.validate_unique()
|
|
|
|
|
|
class EvaluateMethodTest(TestCase):
|
|
"""
|
|
Regression test for #13640: cannot filter by objects with 'evaluate' attr
|
|
"""
|
|
|
|
def test_model_with_evaluate_method(self):
|
|
"""
|
|
You can filter by objects that have an 'evaluate' attr
|
|
"""
|
|
dept = Department.objects.create(pk=1, name='abc')
|
|
dept.evaluate = 'abc'
|
|
Worker.objects.filter(department=dept)
|