def test_m2m_deserialization_with_missing_objects(self):
serialized_articles = Serializer().serialize(Article.objects.all())
article = Deserializer(serialized_articles).next()
Article.objects.all().delete()
Category.objects.all().delete()
article.save()
self.assertEqual(Article.objects.count(), 1)
article = Article.objects.filter()[0]
self.assertEqual(article.categories.count(), 0)
def test_repeated_m2m_deserialization(self):
serialized_articles = Serializer().serialize(Article.objects.all())
article = Deserializer(serialized_articles).next()
Article.objects.all().delete()
article.save()
self.assertEqual(Article.objects.count(), 1)
article = Deserializer(serialized_articles).next()
article.save()
self.assertEqual(Article.objects.count(), 1)
def test_category_deserialization(self):
Category.objects.all().delete()
Category.objects.create(name="Foo", slug="foo")
serialzed_categories = Serializer().serialize(Category.objects.all())
category = Deserializer(serialzed_categories).next()
category2 = Deserializer(serialzed_categories).next()
Category.objects.all().delete()
category.save()
self.assertEqual(Category.objects.count(), 1)
# saving an identical object shouldn't create another instance
category2.save()
self.assertEqual(Category.objects.count(), 1)
