require 'oauth/client/action_controller_request'

def _do_oauth(consumer, params = {})
  c=OAuth::Consumer.new(consumer.consumer_key, consumer.consumer_secret)
  t=OAuth::AccessToken.new(c)
  ActionController::TestRequest.use_oauth=true
  @request.configure_oauth(c, t, params)
end

params = { :store => 'foo' }
_do_oauth(oauth_consumers(:one), params) # currently not working for passing params
get :index, { :format => :json }.merge(params)

ArgumentError: comparison of Array with Array failed
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/helper.rb:37:in `sort'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/helper.rb:37:in `normalize'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/request_proxy/base.rb:98:in `normalized_parameters'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/request_proxy/base.rb:113:in `signature_base_string'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/signature/base.rb:77:in `signature_base_string'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/signature/hmac/base.rb:12:in `digest'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/signature/base.rb:65:in `signature'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/signature.rb:23:in `sign'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/client/helper.rb:45:in `signature'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/client/helper.rb:75:in `header'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/client/action_controller_request.rb:54:in `set_oauth_header'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/client/action_controller_request.rb:50:in `apply_oauth!'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/oauth-0.4.5/lib/oauth/client/action_controller_request.rb:14:in `process_with_new_base_test'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.0.7/lib/action_controller/test_case.rb:412:in `process'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.0.7/lib/action_controller/test_case.rb:47:in `process'
/home/sp/.rvm/gems/ruby-1.9.2-p180/gems/actionpack-3.0.7/lib/action_controller/test_case.rb:350:in `get'
test/functional/deals_controller_test.rb:56:in `block in <class:DealsControllerTest>'