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from django.core.urlresolvers import reverse
from django.conf.urls import patterns, url
from rest_framework.test import APITestCase
from tests.models import NullableForeignKeySource
from tests.serializers import NullableFKSourceSerializer
from tests.views import NullableFKSourceDetail
urlpatterns = patterns(
'',
url(r'^objects/(?P<pk>\d+)/$', NullableFKSourceDetail.as_view(), name='object-detail'),
)
class NullableForeignKeyTests(APITestCase):
"""
DRF should be able to handle nullable foreign keys when a test
Client POST/PUT request is made with its own serialized object.
"""
urls = 'tests.test_nullable_fields'
def test_updating_object_with_null_fk(self):
obj = NullableForeignKeySource(name='example', target=None)
obj.save()
serialized_data = NullableFKSourceSerializer(obj).data
response = self.client.put(reverse('object-detail', args=[obj.pk]), serialized_data)
self.assertEqual(response.data, serialized_data)
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