mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2024-12-22 17:16:24 +00:00
Code Issues 25 Releases Wiki Activity

Refs #26192 -- Added tests for ordering by constant value.

Browse Source
This commit is contained in:
Mariusz Felisiak 2019-05-21 18:29:08 +02:00
parent e2de49ec2e
commit cc80979f01
1 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
tests/ordering/tests.py
View File

@ -1,7 +1,10 @@
from datetime import datetime
from operator import attrgetter
from django.db.models import Count, DateTimeField, F, Max, OuterRef, Subquery
from django.core.exceptions import FieldError
from django.db.models import (
CharField, Count, DateTimeField, F, Max, OuterRef, Subquery, Value,
)
from django.db.models.functions import Upper
from django.test import TestCase
from django.utils.deprecation import RemovedInDjango31Warning
@ -402,6 +405,18 @@ class OrderingTests(TestCase):
attrgetter("headline")
)
def test_order_by_annotated_constant_value(self):
qs = Article.objects.annotate(
constant=Value('1', output_field=CharField()),
).order_by('constant', '-headline')
self.assertSequenceEqual(qs, [self.a4, self.a3, self.a2, self.a1])
def test_order_by_constant_value_without_output_field(self):
msg = 'Cannot resolve expression type, unknown output_field'
qs = Article.objects.annotate(constant=Value('1')).order_by('constant')
with self.assertRaisesMessage(FieldError, msg):
qs.first()
def test_related_ordering_duplicate_table_reference(self):
"""
An ordering referencing a model with an ordering referencing a model