mirror of
https://github.com/django/django.git
synced 2024-12-27 11:35:53 +00:00
83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
"""
|
|
The tests are shared with contenttypes_tests and so shouldn't import or
|
|
reference any models directly. Subclasses should inherit django.test.TestCase.
|
|
"""
|
|
from operator import attrgetter
|
|
|
|
|
|
class BaseOrderWithRespectToTests:
|
|
# Hook to allow subclasses to run these tests with alternate models.
|
|
Answer = None
|
|
Post = None
|
|
Question = None
|
|
|
|
@classmethod
|
|
def setUpTestData(cls):
|
|
cls.q1 = cls.Question.objects.create(text="Which Beatle starts with the letter 'R'?")
|
|
cls.Answer.objects.create(text="John", question=cls.q1)
|
|
cls.Answer.objects.create(text="Paul", question=cls.q1)
|
|
cls.Answer.objects.create(text="George", question=cls.q1)
|
|
cls.Answer.objects.create(text="Ringo", question=cls.q1)
|
|
|
|
def test_default_to_insertion_order(self):
|
|
# Answers will always be ordered in the order they were inserted.
|
|
self.assertQuerysetEqual(
|
|
self.q1.answer_set.all(), [
|
|
"John", "Paul", "George", "Ringo",
|
|
],
|
|
attrgetter("text"),
|
|
)
|
|
|
|
def test_previous_and_next_in_order(self):
|
|
# We can retrieve the answers related to a particular object, in the
|
|
# order they were created, once we have a particular object.
|
|
a1 = self.q1.answer_set.all()[0]
|
|
self.assertEqual(a1.text, "John")
|
|
self.assertEqual(a1.get_next_in_order().text, "Paul")
|
|
|
|
a2 = list(self.q1.answer_set.all())[-1]
|
|
self.assertEqual(a2.text, "Ringo")
|
|
self.assertEqual(a2.get_previous_in_order().text, "George")
|
|
|
|
def test_item_ordering(self):
|
|
# We can retrieve the ordering of the queryset from a particular item.
|
|
a1 = self.q1.answer_set.all()[1]
|
|
id_list = [o.pk for o in self.q1.answer_set.all()]
|
|
self.assertSequenceEqual(a1.question.get_answer_order(), id_list)
|
|
|
|
# It doesn't matter which answer we use to check the order, it will
|
|
# always be the same.
|
|
a2 = self.Answer.objects.create(text="Number five", question=self.q1)
|
|
self.assertEqual(list(a1.question.get_answer_order()), list(a2.question.get_answer_order()))
|
|
|
|
def test_change_ordering(self):
|
|
# The ordering can be altered
|
|
a = self.Answer.objects.create(text="Number five", question=self.q1)
|
|
|
|
# Swap the last two items in the order list
|
|
id_list = [o.pk for o in self.q1.answer_set.all()]
|
|
x = id_list.pop()
|
|
id_list.insert(-1, x)
|
|
|
|
# By default, the ordering is different from the swapped version
|
|
self.assertNotEqual(list(a.question.get_answer_order()), id_list)
|
|
|
|
# Change the ordering to the swapped version -
|
|
# this changes the ordering of the queryset.
|
|
a.question.set_answer_order(id_list)
|
|
self.assertQuerysetEqual(
|
|
self.q1.answer_set.all(), [
|
|
"John", "Paul", "George", "Number five", "Ringo"
|
|
],
|
|
attrgetter("text")
|
|
)
|
|
|
|
def test_recursive_ordering(self):
|
|
p1 = self.Post.objects.create(title="1")
|
|
p2 = self.Post.objects.create(title="2")
|
|
p1_1 = self.Post.objects.create(title="1.1", parent=p1)
|
|
p1_2 = self.Post.objects.create(title="1.2", parent=p1)
|
|
self.Post.objects.create(title="2.1", parent=p2)
|
|
p1_3 = self.Post.objects.create(title="1.3", parent=p1)
|
|
self.assertSequenceEqual(p1.get_post_order(), [p1_1.pk, p1_2.pk, p1_3.pk])
|