Test for JSONP support

spec/grape/entity_spec.rb

@@ -196,6 +196,34 @@ def initialize(args)
  last_response.headers['Content-type'].should == "application/json"
  last_response.body.should == '{"example":{"name":"johnnyiller"}}'
  end
+
+ # We ignore the JSONP callback and rack-jsonp dependency for this test
+ # the main focus is the serialization of the Entity with the
+ # application/javascript content-type
+ it 'presents with jsonp' do
+ entity = Class.new(Grape::Entity)
+ entity.root "examples", "example"
+ entity.expose :name
+
+ subject.content_type :jsonp, 'application/javascript'
+ subject.format :jsonp
+
+ subject.get '/example' do
+ c = Class.new do
+ attr_reader :name
+ def initialize(args)
+ @name = args[:name] || "no name set"
+ end
+ end
+
+ present c.new({:name => "johnnyiller"}), :with => entity
+ end
+ get '/example'
+ last_response.status.should == 200
+ last_response.headers['Content-type'].should == "application/javascript"
+ last_response.body.should == '{"example":{"name":"johnnyiller"}}'
+ end
+
  end
 
 end