Add pending spec for error objects.

Author: Michael Bleigh

lib/grape/middleware/error.rb

@@ -18,4 +18,4 @@ def error_response(error = {})
       end
     end
   end
-end
+end

spec/grape/endpoint_spec.rb

@@ -71,6 +71,18 @@ def app; subject end
       last_response.status.should == 401
       last_response.body.should == "Unauthorized."
     end
+
+    it 'should accept an object and render it in format' do
+      pending
+
+      subject.get '/hey' do
+        error!({'dude' => 'rad'}, 403)
+      end
+
+      get '/hey.json'
+      last_response.status.should == 403
+      last_response.body.should == '{"dude":"rad"}'
+    end
   end
 
   it 'should not persist params between calls' do
@@ -101,4 +113,4 @@ def memoized
     get '/hello?howdy=yo'
     last_response.body.should == 'yo'
   end
-end
+end