def test_archive_month_includes_only_month(self):
        author = Author(name="John Smith")
        author.save()

        # 2004 was a leap year, so it should be weird enough to not cheat
        first_second_of_feb = datetime(2004, 2, 1, 0, 0, 1)
        first_second_of_mar = datetime(2004, 3, 1, 0, 0, 1)
        two_seconds = timedelta(0, 2, 0)
        article = Article(title="example", author=author)

        article.date_created = first_second_of_feb
        article.save()
        response = self.client.get('/views/date_based/archive_month/2004/02/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context['next_month'], date(2004, 3, 1))
        self.assertEqual(response.context['previous_month'], date(2004, 1, 1))

        article.date_created = first_second_of_feb-two_seconds
        article.save()
        response = self.client.get('/views/date_based/archive_month/2004/02/')
        self.assertEqual(response.status_code, 404)

        article.date_created = first_second_of_mar-two_seconds
        article.save()
        response = self.client.get('/views/date_based/archive_month/2004/02/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context['next_month'], date(2004, 3, 1))
        self.assertEqual(response.context['previous_month'], date(2004, 1, 1))

        article.date_created = first_second_of_mar
        article.save()
        response = self.client.get('/views/date_based/archive_month/2004/02/')
        self.assertEqual(response.status_code, 404)

        article2 = DateArticle(title="example", author=author)

        article2.date_created = first_second_of_feb.date()
        article2.save()
        response = self.client.get('/views/date_based/datefield/archive_month/2004/02/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context['next_month'], date(2004, 3, 1))
        self.assertEqual(response.context['previous_month'], date(2004, 1, 1))

        article2.date_created = (first_second_of_feb-two_seconds).date()
        article2.save()
        response = self.client.get('/views/date_based/datefield/archive_month/2004/02/')
        self.assertEqual(response.status_code, 404)

        article2.date_created = (first_second_of_mar-two_seconds).date()
        article2.save()
        response = self.client.get('/views/date_based/datefield/archive_month/2004/02/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context['next_month'], date(2004, 3, 1))
        self.assertEqual(response.context['previous_month'], date(2004, 1, 1))

        article2.date_created = first_second_of_mar.date()
        article2.save()
        response = self.client.get('/views/date_based/datefield/archive_month/2004/02/')
        self.assertEqual(response.status_code, 404)

        now = datetime.now()
        prev_month = now.date().replace(day=1)
        if prev_month.month == 1:
            prev_month = prev_month.replace(year=prev_month.year-1, month=12)
        else:
            prev_month = prev_month.replace(month=prev_month.month-1)
        article2.date_created = now
        article2.save()
        response = self.client.get('/views/date_based/datefield/archive_month/%s/' % now.strftime('%Y/%m'))
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.context['next_month'], None)
        self.assertEqual(response.context['previous_month'], prev_month)
A sequence of instances to discover metadata. 
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/views/tests/generic/date_based.py/MonthArchiveTest.test_archive_month_includes_only_month--crossover with--dataset/ETHPy150Open willhardy/django-seo/rollyourown/seo/base.py/MetadataBase._get_instances