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_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_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 check_indexes(self, params, page_num, indexes): """ Helper method that instantiates a Paginator object from the passed params and then checks that the start and end indexes of the passed page_num match those given as a 2-tuple in indexes. """ paginator = Paginator(*params) if page_num == 'first': page_num = 1 elif page_num == 'last': page_num = paginator.num_pages page = paginator.page(page_num) start, end = indexes msg = ("For %s of page %s, expected %s but got %s." " Paginator parameters were: %s") self.assertEqual(start, page.start_index(), msg % ('start index', page_num, start, page.start_index(), params)) self.assertEqual(end, page.end_index(), msg % ('end index', page_num, end, page.end_index(), params))