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Merged pagination tests 

It is simpler/cleaner to have all pagination tests in a single file.
Refs #16122.
This commit is contained in:
Claude Paroz 2012-11-08 11:00:26 +01:00
parent cafb266954
commit 45802e1248
6 changed files with 95 additions and 156 deletions
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134
tests/modeltests/pagination/tests.py
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@ -1,134 +0,0 @@
from __future__ import absolute_import, unicode_literals
from datetime import datetime
from django.core.paginator import Paginator, InvalidPage, EmptyPage
from django.test import TestCase
from django.utils import six
from .models import Article
class CountContainer(object):
def count(self):
return 42
class LenContainer(object):
def __len__(self):
return 42
class PaginationTests(TestCase):
def setUp(self):
# Prepare a list of objects for pagination.
for x in range(1, 10):
a = Article(headline='Article %s' % x, pub_date=datetime(2005, 7, 29))
a.save()
def test_paginator(self):
paginator = Paginator(Article.objects.all(), 5)
self.assertEqual(9, paginator.count)
self.assertEqual(2, paginator.num_pages)
self.assertEqual([1, 2], list(paginator.page_range))
def test_first_page(self):
paginator = Paginator(Article.objects.all(), 5)
p = paginator.page(1)
self.assertEqual("<Page 1 of 2>", six.text_type(p))
self.assertQuerysetEqual(p.object_list, [
"<Article: Article 1>",
"<Article: Article 2>",
"<Article: Article 3>",
"<Article: Article 4>",
"<Article: Article 5>"
]
)
self.assertTrue(p.has_next())
self.assertFalse(p.has_previous())
self.assertTrue(p.has_other_pages())
self.assertEqual(2, p.next_page_number())
self.assertRaises(InvalidPage, p.previous_page_number)
self.assertEqual(1, p.start_index())
self.assertEqual(5, p.end_index())
def test_last_page(self):
paginator = Paginator(Article.objects.all(), 5)
p = paginator.page(2)
self.assertEqual("<Page 2 of 2>", six.text_type(p))
self.assertQuerysetEqual(p.object_list, [
"<Article: Article 6>",
"<Article: Article 7>",
"<Article: Article 8>",
"<Article: Article 9>"
]
)
self.assertFalse(p.has_next())
self.assertTrue(p.has_previous())
self.assertTrue(p.has_other_pages())
self.assertRaises(InvalidPage, p.next_page_number)
self.assertEqual(1, p.previous_page_number())
self.assertEqual(6, p.start_index())
self.assertEqual(9, p.end_index())
def test_empty_page(self):
paginator = Paginator(Article.objects.all(), 5)
self.assertRaises(EmptyPage, paginator.page, 0)
self.assertRaises(EmptyPage, paginator.page, 3)
# Empty paginators with allow_empty_first_page=True.
paginator = Paginator(Article.objects.filter(id=0), 5, allow_empty_first_page=True)
self.assertEqual(0, paginator.count)
self.assertEqual(1, paginator.num_pages)
self.assertEqual([1], list(paginator.page_range))
# Empty paginators with allow_empty_first_page=False.
paginator = Paginator(Article.objects.filter(id=0), 5, allow_empty_first_page=False)
self.assertEqual(0, paginator.count)
self.assertEqual(0, paginator.num_pages)
self.assertEqual([], list(paginator.page_range))
def test_invalid_page(self):
paginator = Paginator(Article.objects.all(), 5)
self.assertRaises(InvalidPage, paginator.page, 7)
def test_orphans(self):
# Add a few more records to test out the orphans feature.
for x in range(10, 13):
Article(headline="Article %s" % x, pub_date=datetime(2006, 10, 6)).save()
# With orphans set to 3 and 10 items per page, we should get all 12 items on a single page.
paginator = Paginator(Article.objects.all(), 10, orphans=3)
self.assertEqual(1, paginator.num_pages)
# With orphans only set to 1, we should get two pages.
paginator = Paginator(Article.objects.all(), 10, orphans=1)
self.assertEqual(2, paginator.num_pages)
def test_paginate_list(self):
# Paginators work with regular lists/tuples, too -- not just with QuerySets.
paginator = Paginator([1, 2, 3, 4, 5, 6, 7, 8, 9], 3)
self.assertEqual(9, paginator.count)
self.assertEqual(3, paginator.num_pages)
self.assertEqual([1, 2, 3], list(paginator.page_range))
p = paginator.page(2)
self.assertEqual("<Page 2 of 3>", six.text_type(p))
self.assertEqual([4, 5, 6], p.object_list)
self.assertTrue(p.has_next())
self.assertTrue(p.has_previous())
self.assertTrue(p.has_other_pages())
self.assertEqual(3, p.next_page_number())
self.assertEqual(1, p.previous_page_number())
self.assertEqual(4, p.start_index())
self.assertEqual(6, p.end_index())
def test_paginate_misc_classes(self):
# Paginator can be passed other objects with a count() method.
paginator = Paginator(CountContainer(), 10)
self.assertEqual(42, paginator.count)
self.assertEqual(5, paginator.num_pages)
self.assertEqual([1, 2, 3, 4, 5], list(paginator.page_range))
# Paginator can be passed other objects that implement __len__.
paginator = Paginator(LenContainer(), 10)
self.assertEqual(42, paginator.count)
self.assertEqual(5, paginator.num_pages)
self.assertEqual([1, 2, 3, 4, 5], list(paginator.page_range))

0
tests/modeltests/pagination/__init__.py → tests/regressiontests/pagination/__init__.py
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8
tests/modeltests/pagination/models.py → tests/regressiontests/pagination/models.py
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@ -1,11 +1,3 @@
"""
30. Object pagination
Django provides a framework for paginating a list of objects in a few lines
of code. This is often useful for dividing search results or long lists of
objects into easily readable pages.
"""
from django.db import models
from django.utils.encoding import python_2_unicode_compatible

108
tests/regressiontests/pagination_regress/tests.py → tests/regressiontests/pagination/tests.py
View File

@ -1,9 +1,17 @@
from __future__ import unicode_literals
from __future__ import absolute_import, unicode_literals
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from django.utils.unittest import TestCase
from datetime import datetime
class PaginatorTests(TestCase):
from django.core.paginator import (Paginator, EmptyPage, InvalidPage,
PageNotAnInteger)
from django.test import TestCase
from django.utils import six
from django.utils import unittest
from .models import Article
class PaginationTests(unittest.TestCase):
"""
Tests for the Paginator and Page classes.
"""
@ -31,15 +39,6 @@ class PaginatorTests(TestCase):
"For '%s', expected %s but got %s. Paginator parameters were: %s"
% (name, expected, got, params))
def test_invalid_page_number(self):
"""
Tests that invalid page numbers result in the correct exception being
raised.
"""
paginator = Paginator([1, 2, 3], 2)
self.assertRaises(PageNotAnInteger, paginator.validate_number, None)
self.assertRaises(PageNotAnInteger, paginator.validate_number, 'x')
def test_paginator(self):
"""
Tests the paginator attributes using varying inputs.
@ -107,6 +106,38 @@ class PaginatorTests(TestCase):
for params, output in tests:
self.check_paginator(params, output)
def test_invalid_page_number(self):
"""
Tests that invalid page numbers result in the correct exception being
raised.
"""
paginator = Paginator([1, 2, 3], 2)
self.assertRaises(InvalidPage, paginator.page, 3)
self.assertRaises(PageNotAnInteger, paginator.validate_number, None)
self.assertRaises(PageNotAnInteger, paginator.validate_number, 'x')
# With no content and allow_empty_first_page=True, 1 is a valid page number
paginator = Paginator([], 2)
self.assertEqual(paginator.validate_number(1), 1)
def test_paginate_misc_classes(self):
class CountContainer(object):
def count(self):
return 42
# Paginator can be passed other objects with a count() method.
paginator = Paginator(CountContainer(), 10)
self.assertEqual(42, paginator.count)
self.assertEqual(5, paginator.num_pages)
self.assertEqual([1, 2, 3, 4, 5], list(paginator.page_range))
# Paginator can be passed other objects that implement __len__.
class LenContainer(object):
def __len__(self):
return 42
paginator = Paginator(LenContainer(), 10)
self.assertEqual(42, paginator.count)
self.assertEqual(5, paginator.num_pages)
self.assertEqual([1, 2, 3, 4, 5], list(paginator.page_range))
def check_indexes(self, params, page_num, indexes):
"""
Helper method that instantiates a Paginator object from the passed
@ -168,6 +199,7 @@ class PaginatorTests(TestCase):
for params, first, last in tests:
self.check_indexes(params, 'first', first)
self.check_indexes(params, 'last', last)
# When no items and no empty first page, we should get EmptyPage error.
self.assertRaises(EmptyPage, self.check_indexes, ([], 4, 0, False), 1, None)
self.assertRaises(EmptyPage, self.check_indexes, ([], 4, 1, False), 1, None)
@ -184,3 +216,53 @@ class PaginatorTests(TestCase):
self.assertFalse('a' in page2)
self.assertEqual(''.join(page2), 'fghijk')
self.assertEqual(''.join(reversed(page2)), 'kjihgf')
class ModelPaginationTests(TestCase):
"""
Test pagination with Django model instances
"""
def setUp(self):
# Prepare a list of objects for pagination.
for x in range(1, 10):
a = Article(headline='Article %s' % x, pub_date=datetime(2005, 7, 29))
a.save()
def test_first_page(self):
paginator = Paginator(Article.objects.all(), 5)
p = paginator.page(1)
self.assertEqual("<Page 1 of 2>", six.text_type(p))
self.assertQuerysetEqual(p.object_list, [
"<Article: Article 1>",
"<Article: Article 2>",
"<Article: Article 3>",
"<Article: Article 4>",
"<Article: Article 5>"
]
)
self.assertTrue(p.has_next())
self.assertFalse(p.has_previous())
self.assertTrue(p.has_other_pages())
self.assertEqual(2, p.next_page_number())
self.assertRaises(InvalidPage, p.previous_page_number)
self.assertEqual(1, p.start_index())
self.assertEqual(5, p.end_index())
def test_last_page(self):
paginator = Paginator(Article.objects.all(), 5)
p = paginator.page(2)
self.assertEqual("<Page 2 of 2>", six.text_type(p))
self.assertQuerysetEqual(p.object_list, [
"<Article: Article 6>",
"<Article: Article 7>",
"<Article: Article 8>",
"<Article: Article 9>"
]
)
self.assertFalse(p.has_next())
self.assertTrue(p.has_previous())
self.assertTrue(p.has_other_pages())
self.assertRaises(InvalidPage, p.next_page_number)
self.assertEqual(1, p.previous_page_number())
self.assertEqual(6, p.start_index())
self.assertEqual(9, p.end_index())

0
tests/regressiontests/pagination_regress/__init__.py
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1
tests/regressiontests/pagination_regress/models.py
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@ -1 +0,0 @@
# Models file for tests to run.