issue #537: adds specs for enum values (#575)

spec/issues/537_enum_values_spec.rb

@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe '#537 enum values spec' do
+  let(:app) do
+    Class.new(Grape::API) do
+      namespace :issue_539 do
+        class Spec < Grape::Entity
+          expose :test_property, documentation: { values: [:foo, :bar] }
+        end
+
+        desc 'create account',
+             success: Spec
+        get do
+        end
+      end
+
+      add_swagger_documentation format: :json
+    end
+  end
+
+  subject do
+    get '/swagger_doc'
+    JSON.parse(last_response.body)
+  end
+
+  let(:property) { subject['definitions']['Spec']['properties']['test_property'] }
+
+  specify do
+    expect(property).to include 'enum'
+    expect(property['enum']).to eql %w(foo bar)
+  end
+end