If version cake defined add the helpers

Author: SebAshton

spec/spec_helper.rb

@@ -59,6 +59,14 @@
   config.include Spree::Api::TestingSupport::Helpers, type: :controller
   config.include Spree::Api::TestingSupport::Setup, type: :controller
 
+  if Object.const_defined?('VersionCake')
+    config.include VersionCake::TestHelpers, type: :controller
+
+    config.before(:each, type: :controller) do
+      set_request_version('', 1)
+    end
+  end
+
   config.before(:suite) do
     DatabaseCleaner.clean_with(:truncation)
   end