Failing test case for creation-only serializers.

tests/browsable_api/no_auth_urls.py

@@ -1,9 +1,10 @@
 from __future__ import unicode_literals
 from django.conf.urls import patterns
 
-from .views import MockView
+from .views import MockView, CreateOnlyView
 
 urlpatterns = patterns(
     '',
     (r'^$', MockView.as_view()),
+    (r'^create/$', CreateOnlyView.as_view()),
 )

tests/browsable_api/test_browsable_api.py

@@ -63,3 +63,11 @@ class NoDropdownWithoutAuthTests(TestCase):
     def test_dropdown_not_shown_when_logged_out(self):
         response = self.client.get('/')
         self.assertNotContains(response, '<li class="dropdown">')
+
+
+class CreatOnlyModelTests(TestCase):
+    urls = 'tests.browsable_api.no_auth_urls'
+
+    def test_create_only_model(self):
+        with self.assertRaises(AssertionError):
+            self.client.post('/create/', {'text': 'creating'})

tests/browsable_api/views.py

@@ -3,8 +3,12 @@ from __future__ import unicode_literals
 from rest_framework.views import APIView
 from rest_framework import authentication
 from rest_framework import renderers
+from rest_framework import generics
+from rest_framework import serializers
 from rest_framework.response import Response
 
+from tests.models import BasicModel
+
 
 class MockView(APIView):
 
@@ -13,3 +17,19 @@ class MockView(APIView):
 
     def get(self, request):
         return Response({'a': 1, 'b': 2, 'c': 3})
+
+
+class CreateOnlySerializer(serializers.ModelSerializer):
+    def restore_object(self, attrs, instance=None):
+        assert instance is None, 'Cannot update models with this serializer'
+        return super(CreateOnlySerializer, self).restore_object(attrs, instance=instance)
+
+    class Meta:
+        model = BasicModel
+
+
+class CreateOnlyView(generics.ListCreateAPIView):
+    authentication_classes = (authentication.SessionAuthentication,)
+    renderer_classes = (renderers.BrowsableAPIRenderer,)
+    serializer_class = CreateOnlySerializer
+    model = BasicModel