2 files changed, 83 insertions, 0 deletions
diff --git a/rest_framework/tests/test_generics.py b/rest_framework/tests/test_generics.py
index 7a87d389..79cd99ac 100644
--- a/rest_framework/tests/test_generics.py
+++ b/rest_framework/tests/test_generics.py
@@ -272,6 +272,48 @@ class TestInstanceView(TestCase):
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, expected)
 
+    def test_options_before_instance_create(self):
+        """
+        OPTIONS requests to RetrieveUpdateDestroyAPIView should return metadata
+        before the instance has been created
+        """
+        request = factory.options('/999')
+        with self.assertNumQueries(1):
+            response = self.view(request, pk=999).render()
+        expected = {
+            'parses': [
+                'application/json',
+                'application/x-www-form-urlencoded',
+                'multipart/form-data'
+            ],
+            'renders': [
+                'application/json',
+                'text/html'
+            ],
+            'name': 'Instance',
+            'description': 'Example description for OPTIONS.',
+            'actions': {
+                'PUT': {
+                    'text': {
+                        'max_length': 100,
+                        'read_only': False,
+                        'required': True,
+                        'type': 'string',
+                        'label': 'Text comes here',
+                        'help_text': 'Text description.'
+                    },
+                    'id': {
+                        'read_only': True,
+                        'required': False,
+                        'type': 'integer',
+                        'label': 'ID',
+                    },
+                }
+            }
+        }
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertEqual(response.data, expected)
+
     def test_get_instance_view_incorrect_arg(self):
         """
         GET requests with an incorrect pk type, should raise 404, not 500.
diff --git a/rest_framework/tests/test_views.py b/rest_framework/tests/test_views.py
index c0bec5ae..65c7e50e 100644
--- a/rest_framework/tests/test_views.py
+++ b/rest_framework/tests/test_views.py
@@ -32,6 +32,16 @@ def basic_view(request):
         return {'method': 'PATCH', 'data': request.DATA}
 
 
+class ErrorView(APIView):
+    def get(self, request, *args, **kwargs):
+        raise Exception
+
+
+@api_view(['GET'])
+def error_view(request):
+    raise Exception
+
+
 def sanitise_json_error(error_dict):
     """
     Exact contents of JSON error messages depend on the installed version
@@ -99,3 +109,34 @@ class FunctionBasedViewIntegrationTests(TestCase):
         }
         self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
         self.assertEqual(sanitise_json_error(response.data), expected)
+
+
+class TestCustomExceptionHandler(TestCase):
+    def setUp(self):
+        self.DEFAULT_HANDLER = api_settings.EXCEPTION_HANDLER
+
+        def exception_handler(exc):
+            return Response('Error!', status=status.HTTP_400_BAD_REQUEST)
+
+        api_settings.EXCEPTION_HANDLER = exception_handler
+
+    def tearDown(self):
+        api_settings.EXCEPTION_HANDLER = self.DEFAULT_HANDLER
+
+    def test_class_based_view_exception_handler(self):
+        view = ErrorView.as_view()
+
+        request = factory.get('/', content_type='application/json')
+        response = view(request)
+        expected = 'Error!'
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.data, expected)
+
+    def test_function_based_view_exception_handler(self):
+        view = error_view
+
+        request = factory.get('/', content_type='application/json')
+        response = view(request)
+        expected = 'Error!'
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.data, expected)