def test_paginator(self):
"""pages share first and last items with each other"""
items = [i + 1 for i in range(30)]
paginator = PostsPaginator(items, 5)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5],
[5, 6, 7, 8, 9],
[9, 10, 11, 12, 13],
[13, 14, 15, 16, 17],
[17, 18, 19, 20, 21],
[21, 22, 23, 24, 25],
[25, 26, 27, 28, 29],
[29, 30],
])
def test_paginator_overlap(self):
"""test for #732 - assert that page contants don't overlap too much"""
num_items = 16
items = [i + 1 for i in range(num_items)]
for per_page, orphans in product(range(num_items), range(num_items)):
paginator = PostsPaginator(items, per_page + 2, orphans)
pages = self.get_paginator_items_list(paginator)
for p, page in enumerate(pages):
for c, compared in enumerate(pages):
if p == c:
continue
common_part = set(page) & set(compared)
self.assertTrue(
len(common_part) < 2, "invalid page %s: %s" %
(max(p, c) + 1, sorted(list(common_part))))
def test_paginator_orphans(self):
"""paginator handles orphans"""
items = [i + 1 for i in range(16)]
paginator = PostsPaginator(items, 8, 6)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5, 6, 7, 8],
[8, 9, 10, 11, 12, 13, 14, 15, 16],
])
paginator = PostsPaginator(items, 4, 4)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4],
[4, 5, 6, 7],
[7, 8, 9, 10],
[10, 11, 12, 13, 14, 15, 16],
])
paginator = PostsPaginator(items, 5, 3)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5],
[5, 6, 7, 8, 9],
[9, 10, 11, 12, 13, 14, 15, 16],
])
paginator = PostsPaginator(items, 6, 2)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5, 6],
[6, 7, 8, 9, 10, 11],
[11, 12, 13, 14, 15, 16],
])
paginator = PostsPaginator(items, 7, 1)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5, 6, 7],
[7, 8, 9, 10, 11, 12, 13],
[13, 14, 15, 16],
])
paginator = PostsPaginator(items, 7, 3)
self.assertEqual(self.get_paginator_items_list(paginator), [
[1, 2, 3, 4, 5, 6, 7],
[7, 8, 9, 10, 11, 12, 13, 14, 15, 16],
])
paginator = PostsPaginator(items, 10, 6)
self.assertEqual(self.get_paginator_items_list(paginator), [items])
def test_paginator(self):
"""pages share first and last items with each other"""
items = [i + 1 for i in range(30)]
paginator = PostsPaginator(items, 5)
self.assertEqual(paginator.num_pages, 8)
self.assertEqual(paginator.page(1).object_list, [1, 2, 3, 4, 5])
self.assertEqual(paginator.page(2).object_list, [5, 6, 7, 8, 9])
self.assertEqual(paginator.page(3).object_list, [9, 10, 11, 12, 13])
self.assertEqual(paginator.page(4).object_list, [13, 14, 15, 16, 17])
self.assertEqual(paginator.page(5).object_list, [17, 18, 19, 20, 21])
self.assertEqual(paginator.page(6).object_list, [21, 22, 23, 24, 25])
self.assertEqual(paginator.page(7).object_list, [25, 26, 27, 28, 29])
self.assertEqual(paginator.page(8).object_list, [29, 30])
def test_paginator_orphans(self):
"""paginator handles orphans"""
items = [i + 1 for i in range(20)]
paginator = PostsPaginator(items, 8, 6)
self.assertEqual(paginator.num_pages, 2)
self.assertEqual(
paginator.page(1).object_list, [1, 2, 3, 4, 5, 6, 7, 8])
self.assertEqual(
paginator.page(2).object_list,
[8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20])
paginator = PostsPaginator(items, 8, 4)
self.assertEqual(paginator.num_pages, 3)
self.assertEqual(
paginator.page(1).object_list, [1, 2, 3, 4, 5, 6, 7, 8])
self.assertEqual(
paginator.page(2).object_list, [8, 9, 10, 11, 12, 13, 14, 15])
self.assertEqual(
paginator.page(3).object_list, [15, 16, 17, 18, 19, 20])
paginator = PostsPaginator(items, 8, 6)
self.assertEqual(paginator.num_pages, 2)
self.assertEqual(
paginator.page(1).object_list, [1, 2, 3, 4, 5, 6, 7, 8])
self.assertEqual(
paginator.page(2).object_list,
[8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20])
paginator = PostsPaginator(items, 6, 5)
self.assertEqual(paginator.num_pages, 3)
self.assertEqual(paginator.page(1).object_list, [1, 2, 3, 4, 5, 6])
self.assertEqual(paginator.page(2).object_list, [6, 7, 8, 9, 10, 11])
self.assertEqual(
paginator.page(3).object_list,
[11, 12, 13, 14, 15, 16, 17, 18, 19, 20])