constant_lookup.rb Ruby on Rails 5.1.2 constant_lookup.rb activesupport/lib/active_support/testing/constant_lookup.rb on GitHub Last modified: 2017-07-12 08:38:53 -0700 Required Files active_support/concern active_support/inflector Namespace MODULE ActiveSupport MODULE ActiveSupport::Testing MODULE ActiveSupport::Testing::ConstantLookup