Fix: headers defaults to nil.

Author: dblock

lib/grape-swagger-rails.rb

@@ -1,7 +1,7 @@
 require "grape-swagger-rails/engine"
 
 module GrapeSwaggerRails
-  class Options < Struct.new(:url, :api_key_name, :api_key_type, :api_auth, :headers, :app_name, :app_url, :authentication_proc)
+  class Options < OpenStruct
     def authenticate_with(&block)
       self.authentication_proc = block
     end

spec/features/grape-swagger-rails_spec.rb

@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+describe GrapeSwaggerRails do
+  context "#options" do
+    subject do
+      GrapeSwaggerRails.options
+    end
+    it 'is an instance of Options' do
+      expect(subject).to be_a GrapeSwaggerRails::Options
+    end
+    it 'defaults headers to an empty hash' do
+      expect(subject.headers).to eq({})
+    end
+  end
+end