Adds api.endpoint when called to help introspection and testability.

Author: Michael Bleigh

lib/grape/endpoint.rb

@@ -83,6 +83,7 @@ def call(env)
     end
 
     def call!(env)
+      env['api.endpoint'] = self
       if options[:app]
         options[:app].call(env)
       else

spec/grape/endpoint_spec.rb

@@ -14,6 +14,12 @@ def app; subject end
     end
   end
 
+  it 'should set itself in the env upon call' do
+    subject.get('/'){ "Hello world." }
+    get '/'
+    last_request.env['api.endpoint'].should be_kind_of(Grape::Endpoint)
+  end
+
   describe '#status' do
     it 'should be callable from within a block' do
       subject.get('/home') do