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authorFlorian Apolloner <florian@apolloner.eu>2013-02-26 09:53:47 +0100
committerFlorian Apolloner <florian@apolloner.eu>2013-02-26 14:36:57 +0100
commit89f40e36246100df6a11316c31a76712ebc6c501 (patch)
tree6e65639683ddaf2027908d1ecb1739e0e2ff853b /tests/modeltests/basic
parentb3d2ccb5bfbaf6e7fe1f98843baaa48c35a70950 (diff)
Merged regressiontests and modeltests into the test root.
Diffstat (limited to 'tests/modeltests/basic')
-rw-r--r--tests/modeltests/basic/__init__.py0
-rw-r--r--tests/modeltests/basic/models.py20
-rw-r--r--tests/modeltests/basic/tests.py693
3 files changed, 0 insertions, 713 deletions
diff --git a/tests/modeltests/basic/__init__.py b/tests/modeltests/basic/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
--- a/tests/modeltests/basic/__init__.py
+++ /dev/null
diff --git a/tests/modeltests/basic/models.py b/tests/modeltests/basic/models.py
deleted file mode 100644
index 660beddf49..0000000000
--- a/tests/modeltests/basic/models.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding: utf-8
-"""
-1. Bare-bones model
-
-This is a basic model with only two non-primary-key fields.
-"""
-from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
-
-
-@python_2_unicode_compatible
-class Article(models.Model):
- headline = models.CharField(max_length=100, default='Default headline')
- pub_date = models.DateTimeField()
-
- class Meta:
- ordering = ('pub_date','headline')
-
- def __str__(self):
- return self.headline
diff --git a/tests/modeltests/basic/tests.py b/tests/modeltests/basic/tests.py
deleted file mode 100644
index 2de87a225f..0000000000
--- a/tests/modeltests/basic/tests.py
+++ /dev/null
@@ -1,693 +0,0 @@
-from __future__ import absolute_import, unicode_literals
-
-from datetime import datetime
-
-from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned, FieldError
-from django.db.models.fields import Field, FieldDoesNotExist
-from django.db.models.query import QuerySet, EmptyQuerySet, ValuesListQuerySet
-from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
-from django.utils import six
-from django.utils.translation import ugettext_lazy
-
-from .models import Article
-
-
-class ModelTest(TestCase):
-
- def test_lookup(self):
- # No articles are in the system yet.
- self.assertQuerysetEqual(Article.objects.all(), [])
-
- # Create an Article.
- a = Article(
- id=None,
- headline='Area man programs in Python',
- pub_date=datetime(2005, 7, 28),
- )
-
- # Save it into the database. You have to call save() explicitly.
- a.save()
-
- # Now it has an ID.
- self.assertTrue(a.id != None)
-
- # Models have a pk property that is an alias for the primary key
- # attribute (by default, the 'id' attribute).
- self.assertEqual(a.pk, a.id)
-
- # Access database columns via Python attributes.
- self.assertEqual(a.headline, 'Area man programs in Python')
- self.assertEqual(a.pub_date, datetime(2005, 7, 28, 0, 0))
-
- # Change values by changing the attributes, then calling save().
- a.headline = 'Area woman programs in Python'
- a.save()
-
- # Article.objects.all() returns all the articles in the database.
- self.assertQuerysetEqual(Article.objects.all(),
- ['<Article: Area woman programs in Python>'])
-
- # Django provides a rich database lookup API.
- self.assertEqual(Article.objects.get(id__exact=a.id), a)
- self.assertEqual(Article.objects.get(headline__startswith='Area woman'), a)
- self.assertEqual(Article.objects.get(pub_date__year=2005), a)
- self.assertEqual(Article.objects.get(pub_date__year=2005, pub_date__month=7), a)
- self.assertEqual(Article.objects.get(pub_date__year=2005, pub_date__month=7, pub_date__day=28), a)
- self.assertEqual(Article.objects.get(pub_date__week_day=5), a)
-
- # The "__exact" lookup type can be omitted, as a shortcut.
- self.assertEqual(Article.objects.get(id=a.id), a)
- self.assertEqual(Article.objects.get(headline='Area woman programs in Python'), a)
-
- self.assertQuerysetEqual(
- Article.objects.filter(pub_date__year=2005),
- ['<Article: Area woman programs in Python>'],
- )
- self.assertQuerysetEqual(
- Article.objects.filter(pub_date__year=2004),
- [],
- )
- self.assertQuerysetEqual(
- Article.objects.filter(pub_date__year=2005, pub_date__month=7),
- ['<Article: Area woman programs in Python>'],
- )
-
- self.assertQuerysetEqual(
- Article.objects.filter(pub_date__week_day=5),
- ['<Article: Area woman programs in Python>'],
- )
- self.assertQuerysetEqual(
- Article.objects.filter(pub_date__week_day=6),
- [],
- )
-
- # Django raises an Article.DoesNotExist exception for get() if the
- # parameters don't match any object.
- six.assertRaisesRegex(self,
- ObjectDoesNotExist,
- "Article matching query does not exist. Lookup parameters were "
- "{'id__exact': 2000}",
- Article.objects.get,
- id__exact=2000,
- )
- # To avoid dict-ordering related errors check only one lookup
- # in single assert.
- six.assertRaisesRegex(self,
- ObjectDoesNotExist,
- ".*'pub_date__year': 2005.*",
- Article.objects.get,
- pub_date__year=2005,
- pub_date__month=8,
- )
- six.assertRaisesRegex(self,
- ObjectDoesNotExist,
- ".*'pub_date__month': 8.*",
- Article.objects.get,
- pub_date__year=2005,
- pub_date__month=8,
- )
-
- six.assertRaisesRegex(self,
- ObjectDoesNotExist,
- "Article matching query does not exist. Lookup parameters were "
- "{'pub_date__week_day': 6}",
- Article.objects.get,
- pub_date__week_day=6,
- )
-
- # Lookup by a primary key is the most common case, so Django
- # provides a shortcut for primary-key exact lookups.
- # The following is identical to articles.get(id=a.id).
- self.assertEqual(Article.objects.get(pk=a.id), a)
-
- # pk can be used as a shortcut for the primary key name in any query.
- self.assertQuerysetEqual(Article.objects.filter(pk__in=[a.id]),
- ["<Article: Area woman programs in Python>"])
-
- # Model instances of the same type and same ID are considered equal.
- a = Article.objects.get(pk=a.id)
- b = Article.objects.get(pk=a.id)
- self.assertEqual(a, b)
-
- # Create a very similar object
- a = Article(
- id=None,
- headline='Area man programs in Python',
- pub_date=datetime(2005, 7, 28),
- )
- a.save()
-
- self.assertEqual(Article.objects.count(), 2)
-
- # Django raises an Article.MultipleObjectsReturned exception if the
- # lookup matches more than one object
- six.assertRaisesRegex(self,
- MultipleObjectsReturned,
- "get\(\) returned more than one Article -- it returned 2!",
- Article.objects.get,
- headline__startswith='Area',
- )
-
- six.assertRaisesRegex(self,
- MultipleObjectsReturned,
- "get\(\) returned more than one Article -- it returned 2!",
- Article.objects.get,
- pub_date__year=2005,
- )
-
- six.assertRaisesRegex(self,
- MultipleObjectsReturned,
- "get\(\) returned more than one Article -- it returned 2!",
- Article.objects.get,
- pub_date__year=2005,
- pub_date__month=7,
- )
-
- def test_object_creation(self):
- # Create an Article.
- a = Article(
- id=None,
- headline='Area man programs in Python',
- pub_date=datetime(2005, 7, 28),
- )
-
- # Save it into the database. You have to call save() explicitly.
- a.save()
-
- # You can initialize a model instance using positional arguments,
- # which should match the field order as defined in the model.
- a2 = Article(None, 'Second article', datetime(2005, 7, 29))
- a2.save()
-
- self.assertNotEqual(a2.id, a.id)
- self.assertEqual(a2.headline, 'Second article')
- self.assertEqual(a2.pub_date, datetime(2005, 7, 29, 0, 0))
-
- # ...or, you can use keyword arguments.
- a3 = Article(
- id=None,
- headline='Third article',
- pub_date=datetime(2005, 7, 30),
- )
- a3.save()
-
- self.assertNotEqual(a3.id, a.id)
- self.assertNotEqual(a3.id, a2.id)
- self.assertEqual(a3.headline, 'Third article')
- self.assertEqual(a3.pub_date, datetime(2005, 7, 30, 0, 0))
-
- # You can also mix and match position and keyword arguments, but
- # be sure not to duplicate field information.
- a4 = Article(None, 'Fourth article', pub_date=datetime(2005, 7, 31))
- a4.save()
- self.assertEqual(a4.headline, 'Fourth article')
-
- # Don't use invalid keyword arguments.
- six.assertRaisesRegex(self,
- TypeError,
- "'foo' is an invalid keyword argument for this function",
- Article,
- id=None,
- headline='Invalid',
- pub_date=datetime(2005, 7, 31),
- foo='bar',
- )
-
- # You can leave off the value for an AutoField when creating an
- # object, because it'll get filled in automatically when you save().
- a5 = Article(headline='Article 6', pub_date=datetime(2005, 7, 31))
- a5.save()
- self.assertEqual(a5.headline, 'Article 6')
-
- # If you leave off a field with "default" set, Django will use
- # the default.
- a6 = Article(pub_date=datetime(2005, 7, 31))
- a6.save()
- self.assertEqual(a6.headline, 'Default headline')
-
- # For DateTimeFields, Django saves as much precision (in seconds)
- # as you give it.
- a7 = Article(
- headline='Article 7',
- pub_date=datetime(2005, 7, 31, 12, 30),
- )
- a7.save()
- self.assertEqual(Article.objects.get(id__exact=a7.id).pub_date,
- datetime(2005, 7, 31, 12, 30))
-
- a8 = Article(
- headline='Article 8',
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- a8.save()
- self.assertEqual(Article.objects.get(id__exact=a8.id).pub_date,
- datetime(2005, 7, 31, 12, 30, 45))
-
- # Saving an object again doesn't create a new object -- it just saves
- # the old one.
- current_id = a8.id
- a8.save()
- self.assertEqual(a8.id, current_id)
- a8.headline = 'Updated article 8'
- a8.save()
- self.assertEqual(a8.id, current_id)
-
- # Check that != and == operators behave as expecte on instances
- self.assertTrue(a7 != a8)
- self.assertFalse(a7 == a8)
- self.assertEqual(a8, Article.objects.get(id__exact=a8.id))
-
- self.assertTrue(Article.objects.get(id__exact=a8.id) != Article.objects.get(id__exact=a7.id))
- self.assertFalse(Article.objects.get(id__exact=a8.id) == Article.objects.get(id__exact=a7.id))
-
- # You can use 'in' to test for membership...
- self.assertTrue(a8 in Article.objects.all())
-
- # ... but there will often be more efficient ways if that is all you need:
- self.assertTrue(Article.objects.filter(id=a8.id).exists())
-
- # datetimes() returns a list of available dates of the given scope for
- # the given field.
- self.assertQuerysetEqual(
- Article.objects.datetimes('pub_date', 'year'),
- ["datetime.datetime(2005, 1, 1, 0, 0)"])
- self.assertQuerysetEqual(
- Article.objects.datetimes('pub_date', 'month'),
- ["datetime.datetime(2005, 7, 1, 0, 0)"])
- self.assertQuerysetEqual(
- Article.objects.datetimes('pub_date', 'day'),
- ["datetime.datetime(2005, 7, 28, 0, 0)",
- "datetime.datetime(2005, 7, 29, 0, 0)",
- "datetime.datetime(2005, 7, 30, 0, 0)",
- "datetime.datetime(2005, 7, 31, 0, 0)"])
- self.assertQuerysetEqual(
- Article.objects.datetimes('pub_date', 'day', order='ASC'),
- ["datetime.datetime(2005, 7, 28, 0, 0)",
- "datetime.datetime(2005, 7, 29, 0, 0)",
- "datetime.datetime(2005, 7, 30, 0, 0)",
- "datetime.datetime(2005, 7, 31, 0, 0)"])
- self.assertQuerysetEqual(
- Article.objects.datetimes('pub_date', 'day', order='DESC'),
- ["datetime.datetime(2005, 7, 31, 0, 0)",
- "datetime.datetime(2005, 7, 30, 0, 0)",
- "datetime.datetime(2005, 7, 29, 0, 0)",
- "datetime.datetime(2005, 7, 28, 0, 0)"])
-
- # datetimes() requires valid arguments.
- self.assertRaises(
- TypeError,
- Article.objects.dates,
- )
-
- six.assertRaisesRegex(self,
- FieldDoesNotExist,
- "Article has no field named 'invalid_field'",
- Article.objects.dates,
- "invalid_field",
- "year",
- )
-
- six.assertRaisesRegex(self,
- AssertionError,
- "'kind' must be one of 'year', 'month' or 'day'.",
- Article.objects.dates,
- "pub_date",
- "bad_kind",
- )
-
- six.assertRaisesRegex(self,
- AssertionError,
- "'order' must be either 'ASC' or 'DESC'.",
- Article.objects.dates,
- "pub_date",
- "year",
- order="bad order",
- )
-
- # Use iterator() with datetimes() to return a generator that lazily
- # requests each result one at a time, to save memory.
- dates = []
- for article in Article.objects.datetimes('pub_date', 'day', order='DESC').iterator():
- dates.append(article)
- self.assertEqual(dates, [
- datetime(2005, 7, 31, 0, 0),
- datetime(2005, 7, 30, 0, 0),
- datetime(2005, 7, 29, 0, 0),
- datetime(2005, 7, 28, 0, 0)])
-
- # You can combine queries with & and |.
- s1 = Article.objects.filter(id__exact=a.id)
- s2 = Article.objects.filter(id__exact=a2.id)
- self.assertQuerysetEqual(s1 | s2,
- ["<Article: Area man programs in Python>",
- "<Article: Second article>"])
- self.assertQuerysetEqual(s1 & s2, [])
-
- # You can get the number of objects like this:
- self.assertEqual(len(Article.objects.filter(id__exact=a.id)), 1)
-
- # You can get items using index and slice notation.
- self.assertEqual(Article.objects.all()[0], a)
- self.assertQuerysetEqual(Article.objects.all()[1:3],
- ["<Article: Second article>", "<Article: Third article>"])
-
- s3 = Article.objects.filter(id__exact=a3.id)
- self.assertQuerysetEqual((s1 | s2 | s3)[::2],
- ["<Article: Area man programs in Python>",
- "<Article: Third article>"])
-
- # Slicing works with longs (Python 2 only -- Python 3 doesn't have longs).
- if not six.PY3:
- self.assertEqual(Article.objects.all()[long(0)], a)
- self.assertQuerysetEqual(Article.objects.all()[long(1):long(3)],
- ["<Article: Second article>", "<Article: Third article>"])
- self.assertQuerysetEqual((s1 | s2 | s3)[::long(2)],
- ["<Article: Area man programs in Python>",
- "<Article: Third article>"])
-
- # And can be mixed with ints.
- self.assertQuerysetEqual(Article.objects.all()[1:long(3)],
- ["<Article: Second article>", "<Article: Third article>"])
-
- # Slices (without step) are lazy:
- self.assertQuerysetEqual(Article.objects.all()[0:5].filter(),
- ["<Article: Area man programs in Python>",
- "<Article: Second article>",
- "<Article: Third article>",
- "<Article: Article 6>",
- "<Article: Default headline>"])
-
- # Slicing again works:
- self.assertQuerysetEqual(Article.objects.all()[0:5][0:2],
- ["<Article: Area man programs in Python>",
- "<Article: Second article>"])
- self.assertQuerysetEqual(Article.objects.all()[0:5][:2],
- ["<Article: Area man programs in Python>",
- "<Article: Second article>"])
- self.assertQuerysetEqual(Article.objects.all()[0:5][4:],
- ["<Article: Default headline>"])
- self.assertQuerysetEqual(Article.objects.all()[0:5][5:], [])
-
- # Some more tests!
- self.assertQuerysetEqual(Article.objects.all()[2:][0:2],
- ["<Article: Third article>", "<Article: Article 6>"])
- self.assertQuerysetEqual(Article.objects.all()[2:][:2],
- ["<Article: Third article>", "<Article: Article 6>"])
- self.assertQuerysetEqual(Article.objects.all()[2:][2:3],
- ["<Article: Default headline>"])
-
- # Using an offset without a limit is also possible.
- self.assertQuerysetEqual(Article.objects.all()[5:],
- ["<Article: Fourth article>",
- "<Article: Article 7>",
- "<Article: Updated article 8>"])
-
- # Also, once you have sliced you can't filter, re-order or combine
- six.assertRaisesRegex(self,
- AssertionError,
- "Cannot filter a query once a slice has been taken.",
- Article.objects.all()[0:5].filter,
- id=a.id,
- )
-
- six.assertRaisesRegex(self,
- AssertionError,
- "Cannot reorder a query once a slice has been taken.",
- Article.objects.all()[0:5].order_by,
- 'id',
- )
-
- try:
- Article.objects.all()[0:1] & Article.objects.all()[4:5]
- self.fail('Should raise an AssertionError')
- except AssertionError as e:
- self.assertEqual(str(e), "Cannot combine queries once a slice has been taken.")
- except Exception as e:
- self.fail('Should raise an AssertionError, not %s' % e)
-
- # Negative slices are not supported, due to database constraints.
- # (hint: inverting your ordering might do what you need).
- try:
- Article.objects.all()[-1]
- self.fail('Should raise an AssertionError')
- except AssertionError as e:
- self.assertEqual(str(e), "Negative indexing is not supported.")
- except Exception as e:
- self.fail('Should raise an AssertionError, not %s' % e)
-
- error = None
- try:
- Article.objects.all()[0:-5]
- except Exception as e:
- error = e
- self.assertTrue(isinstance(error, AssertionError))
- self.assertEqual(str(error), "Negative indexing is not supported.")
-
- # An Article instance doesn't have access to the "objects" attribute.
- # That's only available on the class.
- six.assertRaisesRegex(self,
- AttributeError,
- "Manager isn't accessible via Article instances",
- getattr,
- a7,
- "objects",
- )
-
- # Bulk delete test: How many objects before and after the delete?
- self.assertQuerysetEqual(Article.objects.all(),
- ["<Article: Area man programs in Python>",
- "<Article: Second article>",
- "<Article: Third article>",
- "<Article: Article 6>",
- "<Article: Default headline>",
- "<Article: Fourth article>",
- "<Article: Article 7>",
- "<Article: Updated article 8>"])
- Article.objects.filter(id__lte=a4.id).delete()
- self.assertQuerysetEqual(Article.objects.all(),
- ["<Article: Article 6>",
- "<Article: Default headline>",
- "<Article: Article 7>",
- "<Article: Updated article 8>"])
-
- @skipUnlessDBFeature('supports_microsecond_precision')
- def test_microsecond_precision(self):
- # In PostgreSQL, microsecond-level precision is available.
- a9 = Article(
- headline='Article 9',
- pub_date=datetime(2005, 7, 31, 12, 30, 45, 180),
- )
- a9.save()
- self.assertEqual(Article.objects.get(pk=a9.pk).pub_date,
- datetime(2005, 7, 31, 12, 30, 45, 180))
-
- @skipIfDBFeature('supports_microsecond_precision')
- def test_microsecond_precision_not_supported(self):
- # In MySQL, microsecond-level precision isn't available. You'll lose
- # microsecond-level precision once the data is saved.
- a9 = Article(
- headline='Article 9',
- pub_date=datetime(2005, 7, 31, 12, 30, 45, 180),
- )
- a9.save()
- self.assertEqual(Article.objects.get(id__exact=a9.id).pub_date,
- datetime(2005, 7, 31, 12, 30, 45))
-
- def test_manually_specify_primary_key(self):
- # You can manually specify the primary key when creating a new object.
- a101 = Article(
- id=101,
- headline='Article 101',
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- a101.save()
- a101 = Article.objects.get(pk=101)
- self.assertEqual(a101.headline, 'Article 101')
-
- def test_create_method(self):
- # You can create saved objects in a single step
- a10 = Article.objects.create(
- headline="Article 10",
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- self.assertEqual(Article.objects.get(headline="Article 10"), a10)
-
- def test_year_lookup_edge_case(self):
- # Edge-case test: A year lookup should retrieve all objects in
- # the given year, including Jan. 1 and Dec. 31.
- a11 = Article.objects.create(
- headline='Article 11',
- pub_date=datetime(2008, 1, 1),
- )
- a12 = Article.objects.create(
- headline='Article 12',
- pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999),
- )
- self.assertQuerysetEqual(Article.objects.filter(pub_date__year=2008),
- ["<Article: Article 11>", "<Article: Article 12>"])
-
- def test_unicode_data(self):
- # Unicode data works, too.
- a = Article(
- headline='\u6797\u539f \u3081\u3050\u307f',
- pub_date=datetime(2005, 7, 28),
- )
- a.save()
- self.assertEqual(Article.objects.get(pk=a.id).headline,
- '\u6797\u539f \u3081\u3050\u307f')
-
- def test_hash_function(self):
- # Model instances have a hash function, so they can be used in sets
- # or as dictionary keys. Two models compare as equal if their primary
- # keys are equal.
- a10 = Article.objects.create(
- headline="Article 10",
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- a11 = Article.objects.create(
- headline='Article 11',
- pub_date=datetime(2008, 1, 1),
- )
- a12 = Article.objects.create(
- headline='Article 12',
- pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999),
- )
-
- s = set([a10, a11, a12])
- self.assertTrue(Article.objects.get(headline='Article 11') in s)
-
- def test_field_ordering(self):
- """
- Field instances have a `__lt__` comparison function to define an
- ordering based on their creation. Prior to #17851 this ordering
- comparison relied on the now unsupported `__cmp__` and was assuming
- compared objects were both Field instances raising `AttributeError`
- when it should have returned `NotImplemented`.
- """
- f1 = Field()
- f2 = Field(auto_created=True)
- f3 = Field()
- self.assertTrue(f2 < f1)
- self.assertTrue(f3 > f1)
- self.assertFalse(f1 == None)
- self.assertFalse(f2 in (None, 1, ''))
-
- def test_extra_method_select_argument_with_dashes_and_values(self):
- # The 'select' argument to extra() supports names with dashes in
- # them, as long as you use values().
- a10 = Article.objects.create(
- headline="Article 10",
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- a11 = Article.objects.create(
- headline='Article 11',
- pub_date=datetime(2008, 1, 1),
- )
- a12 = Article.objects.create(
- headline='Article 12',
- pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999),
- )
-
- dicts = Article.objects.filter(
- pub_date__year=2008).extra(
- select={'dashed-value': '1'}
- ).values('headline', 'dashed-value')
- self.assertEqual([sorted(d.items()) for d in dicts],
- [[('dashed-value', 1), ('headline', 'Article 11')], [('dashed-value', 1), ('headline', 'Article 12')]])
-
- def test_extra_method_select_argument_with_dashes(self):
- # If you use 'select' with extra() and names containing dashes on a
- # query that's *not* a values() query, those extra 'select' values
- # will silently be ignored.
- a10 = Article.objects.create(
- headline="Article 10",
- pub_date=datetime(2005, 7, 31, 12, 30, 45),
- )
- a11 = Article.objects.create(
- headline='Article 11',
- pub_date=datetime(2008, 1, 1),
- )
- a12 = Article.objects.create(
- headline='Article 12',
- pub_date=datetime(2008, 12, 31, 23, 59, 59, 999999),
- )
-
- articles = Article.objects.filter(
- pub_date__year=2008).extra(
- select={'dashed-value': '1', 'undashedvalue': '2'})
- self.assertEqual(articles[0].undashedvalue, 2)
-
- def test_create_relation_with_ugettext_lazy(self):
- """
- Test that ugettext_lazy objects work when saving model instances
- through various methods. Refs #10498.
- """
- notlazy = 'test'
- lazy = ugettext_lazy(notlazy)
- reporter = Article.objects.create(headline=lazy, pub_date=datetime.now())
- article = Article.objects.get()
- self.assertEqual(article.headline, notlazy)
- # test that assign + save works with Promise objecs
- article.headline = lazy
- article.save()
- self.assertEqual(article.headline, notlazy)
- # test .update()
- Article.objects.update(headline=lazy)
- article = Article.objects.get()
- self.assertEqual(article.headline, notlazy)
- # still test bulk_create()
- Article.objects.all().delete()
- Article.objects.bulk_create([Article(headline=lazy, pub_date=datetime.now())])
- article = Article.objects.get()
- self.assertEqual(article.headline, notlazy)
-
- def test_emptyqs(self):
- # Can't be instantiated
- with self.assertRaises(TypeError):
- EmptyQuerySet()
- self.assertTrue(isinstance(Article.objects.none(), EmptyQuerySet))
-
- def test_emptyqs_values(self):
- # test for #15959
- Article.objects.create(headline='foo', pub_date=datetime.now())
- with self.assertNumQueries(0):
- qs = Article.objects.none().values_list('pk')
- self.assertTrue(isinstance(qs, EmptyQuerySet))
- self.assertTrue(isinstance(qs, ValuesListQuerySet))
- self.assertEqual(len(qs), 0)
-
- def test_emptyqs_customqs(self):
- # A hacky test for custom QuerySet subclass - refs #17271
- Article.objects.create(headline='foo', pub_date=datetime.now())
- class CustomQuerySet(QuerySet):
- def do_something(self):
- return 'did something'
-
- qs = Article.objects.all()
- qs.__class__ = CustomQuerySet
- qs = qs.none()
- with self.assertNumQueries(0):
- self.assertEqual(len(qs), 0)
- self.assertTrue(isinstance(qs, EmptyQuerySet))
- self.assertEqual(qs.do_something(), 'did something')
-
- def test_emptyqs_values_order(self):
- # Tests for ticket #17712
- Article.objects.create(headline='foo', pub_date=datetime.now())
- with self.assertNumQueries(0):
- self.assertEqual(len(Article.objects.none().values_list('id').order_by('id')), 0)
- with self.assertNumQueries(0):
- self.assertEqual(len(Article.objects.none().filter(
- id__in=Article.objects.values_list('id', flat=True))), 0)
-
- @skipUnlessDBFeature('can_distinct_on_fields')
- def test_emptyqs_distinct(self):
- # Tests for #19426
- Article.objects.create(headline='foo', pub_date=datetime.now())
- with self.assertNumQueries(0):
- self.assertEqual(len(Article.objects.none().distinct('headline', 'pub_date')), 0)
-
- def test_invalid_qs_list(self):
- qs = Article.objects.order_by('invalid_column')
- self.assertRaises(FieldError, list, qs)
- self.assertRaises(FieldError, list, qs) \ No newline at end of file