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8 changes: 8 additions & 0 deletions rest_framework/schemas/views.py
Original file line number Diff line number Diff line change
Expand Up @@ -31,3 +31,11 @@ def get(self, request, *args, **kwargs):
if schema is None:
raise exceptions.PermissionDenied()
return Response(schema)

def handle_exception(self, exc):
# Schema renderers do not render exceptions, so re-perform content
# negotiation with default renderers.
self.renderer_classes = api_settings.DEFAULT_RENDERER_CLASSES
neg = self.perform_content_negotiation(self.request, force=True)
self.request.accepted_renderer, self.request.accepted_media_type = neg
return super(SchemaView, self).handle_exception(exc)
10 changes: 10 additions & 0 deletions tests/test_schemas.py
Original file line number Diff line number Diff line change
Expand Up @@ -1304,3 +1304,13 @@ def test_foo(self):

def test_FOO(self):
assert not self._test('FOO')


@pytest.mark.skipif(not coreapi, reason='coreapi is not installed')
def test_schema_handles_exception():
schema_view = get_schema_view(permission_classes=[DenyAllUsingPermissionDenied])
request = factory.get('/')
response = schema_view(request)
response.render()
assert response.status_code == 403
assert "You do not have permission to perform this action." in str(response.content)