问NoMethodError:用于nil:NilClass的未定义方法`original_path_set‘

EN

DaysController

    GET 'index'

An error occurred in an after hook

    NoMethodError: undefined method `original_path_set' for nil:NilClass

    occurred at /home/travis/build/violarium/ruby-moon/vendor/bundle/ruby/2.1.0/gems/rspec-rails-2.14.2/lib/rspec/rails/view_rendering.rb:121:in `block (2 levels) in <module:ViewRendering>'

module UserSession
  extend ActiveSupport::Concern

  private

  # Sign in existent user
  def sign_in(user)
    cookies.permanent[:remember_token] = user.remember_token
  end

  # Clear cookies
  def sign_out
    cookies[:remember_token] = nil
  end

  # Get current signed in user or nil
  def signed_in_user
    @current_user ||= User.find_by(remember_token: cookies[:remember_token])
  end

  # Check if user is signed in
  def signed_in?
    !signed_in_user.nil?
  end

  included do
    helper_method :signed_in?
  end
end