from django.conf import settings

from django.contrib.sites.models import Site

from django.test import TestCase

from models import SyndicatedArticle, ExclusiveArticle, CustomArticle, InvalidArticle, ConfusedArticle

class SitesFrameworkTestCase(TestCase):

    def setUp(self):

        Site.objects.get_or_create(id=settings.SITE_ID, domain="example.com", name="example.com")

        Site.objects.create(id=settings.SITE_ID+1, domain="example2.com", name="example2.com")

    def test_site_fk(self):

        article = ExclusiveArticle.objects.create(title="Breaking News!", site_id=settings.SITE_ID)

        self.assertEqual(ExclusiveArticle.on_site.all().get(), article)

    def test_sites_m2m(self):

        article = SyndicatedArticle.objects.create(title="Fresh News!")

        article.sites.add(Site.objects.get(id=settings.SITE_ID))

        article.sites.add(Site.objects.get(id=settings.SITE_ID+1))

        article2 = SyndicatedArticle.objects.create(title="More News!")

        article2.sites.add(Site.objects.get(id=settings.SITE_ID+1))

        self.assertEqual(SyndicatedArticle.on_site.all().get(), article)

    def test_custom_named_field(self):

        article = CustomArticle.objects.create(title="Tantalizing News!", places_this_article_should_appear_id=settings.SITE_ID)

        self.assertEqual(CustomArticle.on_site.all().get(), article)

    def test_invalid_name(self):

        article = InvalidArticle.objects.create(title="Bad News!", site_id=settings.SITE_ID)

        self.assertRaises(ValueError, InvalidArticle.on_site.all)

    def test_invalid_field_type(self):

        article = ConfusedArticle.objects.create(title="More Bad News!", site=settings.SITE_ID)

        self.assertRaises(TypeError, ConfusedArticle.on_site.all)