[1.2.X] Migrated m2m_multiple doctests. Thanks to Alex Gaynor.

    def __unicode__(self):

        return self.headline

__test__ = {'API_TESTS':"""

>>> from datetime import datetime

>>> c1 = Category(name='Sports')

>>> c1.save()

>>> c2 = Category(name='News')

>>> c2.save()

>>> c3 = Category(name='Crime')

>>> c3.save()

>>> c4 = Category(name='Life')

>>> c4.save()

>>> a1 = Article(headline='Area man steals', pub_date=datetime(2005, 11, 27))

>>> a1.save()

>>> a1.primary_categories.add(c2, c3)

>>> a1.secondary_categories.add(c4)

>>> a2 = Article(headline='Area man runs', pub_date=datetime(2005, 11, 28))

>>> a2.save()

>>> a2.primary_categories.add(c1, c2)

>>> a2.secondary_categories.add(c4)

>>> a1.primary_categories.all()

[<Category: Crime>, <Category: News>]

>>> a2.primary_categories.all()

[<Category: News>, <Category: Sports>]

>>> a1.secondary_categories.all()

[<Category: Life>]

>>> c1.primary_article_set.all()

[<Article: Area man runs>]

>>> c1.secondary_article_set.all()

[]

>>> c2.primary_article_set.all()

[<Article: Area man steals>, <Article: Area man runs>]

>>> c2.secondary_article_set.all()

[]

>>> c3.primary_article_set.all()

[<Article: Area man steals>]

>>> c3.secondary_article_set.all()

[]

>>> c4.primary_article_set.all()

[]

>>> c4.secondary_article_set.all()

[<Article: Area man steals>, <Article: Area man runs>]

"""}

from datetime import datetime

from django.test import TestCase

from models import Article, Category

class M2MMultipleTests(TestCase):

    def test_multiple(self):

        c1, c2, c3, c4 = [

            Category.objects.create(name=name)

            for name in ["Sports", "News", "Crime", "Life"]

        ]

        a1 = Article.objects.create(

            headline="Area man steals", pub_date=datetime(2005, 11, 27)

        )

        a1.primary_categories.add(c2, c3)

        a1.secondary_categories.add(c4)

        a2 = Article.objects.create(

            headline="Area man runs", pub_date=datetime(2005, 11, 28)

        )

        a2.primary_categories.add(c1, c2)

        a2.secondary_categories.add(c4)

        self.assertQuerysetEqual(

            a1.primary_categories.all(), [

                "Crime",

                "News",

            ],

            lambda c: c.name

        )

        self.assertQuerysetEqual(

            a2.primary_categories.all(), [

                "News",

                "Sports",

            ],

            lambda c: c.name

        )

        self.assertQuerysetEqual(

            a1.secondary_categories.all(), [

                "Life",

            ],

            lambda c: c.name

        )

        self.assertQuerysetEqual(

            c1.primary_article_set.all(), [

                "Area man runs",

            ],

            lambda a: a.headline

        )

        self.assertQuerysetEqual(

            c1.secondary_article_set.all(), []

        )

        self.assertQuerysetEqual(

            c2.primary_article_set.all(), [

                "Area man steals",

                "Area man runs",

            ],

            lambda a: a.headline

        )

        self.assertQuerysetEqual(

            c2.secondary_article_set.all(), []

        )

        self.assertQuerysetEqual(

            c3.primary_article_set.all(), [

                "Area man steals",

            ],

            lambda a: a.headline

        )

        self.assertQuerysetEqual(

            c3.secondary_article_set.all(), []

        )

        self.assertQuerysetEqual(

            c4.primary_article_set.all(), []

        )

        self.assertQuerysetEqual(

            c4.secondary_article_set.all(), [

                "Area man steals",

                "Area man runs",

            ],

            lambda a: a.headline

        )