ruby - undefined method `authenticate' for nil:NilClass While Testing Custom OmniAuth Strategy in Rails With Devise -


i wrote custom omniauth strategy , trying write rspec tests around it, keep getting error:

nomethoderror:    undefined method `authenticate' nil:nilclass  # ./controllers/application_controller.rb:58:in `block in <class:applicationcontroller>'  # ./lib/omniauth/custom_strategy.rb:135:in `block in callback_phase'  # ./lib/omniauth/custom_strategy.rb:119:in `callback_phase'  # ./spec/lib/omniauth/custom_strategy_spec.rb:62:in `block (3 levels) in <top (required)>'

after digging through devise code, found error originating in lib/devise/controllers/helpers.rb, current_user method gets defined in applicationcontroller:

def current_#{mapping}   @current_#{mapping} ||= warden.authenticate(:scope => :#{mapping}) end

in case, warden defined as:

def warden   request.env['warden'] end

so, in spec, since it's not controller spec, put in custom code create rack app (as seen here: https://github.com/mkdynamic/omniauth/blob/master/spec/omniauth/strategies/developer_spec.rb) so:

# outside of spec block:

rspec.configure |config|   config.include rack::test::methods end

# inside spec block:

let(:app){ rack::builder.new |b|   b.use rack::session::cookie   b.use omniauth::strategies::customstrategy   b.run lambda{|env| [200, {}, ['not found']]} end.to_app }

the problem here rack::test::methods don't include request object, rspec provides in controller tests. so, request.env not defined , therefore warden not defined.

i tried including devise::testhelpers, described here (all ruby tests raising: undefined method `authenticate' nil:nilclass), since @request not defined, throws error.

i've tried many other solutions, none seem deal non-controller tests, since rely on request object. has had experience these issues , can shed light on possible solutions?

thanks in advance.


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