機能テストが失敗する（Rspec、Devise）

Question

私はrspec機能テストを実装して、ユーザーがdeviseでサインインしていることを確認しようとしています。私は何度も何度も何度も何度もコードを見てきました。

私は関連ファイルであると考えているものを含めました。欠けているものがあれば教えてください。どんな勧告も感謝しています。

スペック/ rails_helper.rb

# This file is copied to spec/ when you run 'rails generate rspec:install' 
ENV['RAILS_ENV'] ||= 'test' 
require File.expand_path('../../config/environment', __FILE__) 
# Prevent database truncation if the environment is production 
abort("The Rails environment is running in production mode!") if Rails.env.production? 

# Add additional requires below this line. Rails is not loaded until this point! 

require 'spec_helper' 
require 'rspec/rails' 
# note: require 'devise' after require 'rspec/rails' 
require 'devise' 

# Requires supporting ruby files with custom matchers and macros, etc, in 
# spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are 
# run as spec files by default. This means that files in spec/support that end 
# in _spec.rb will both be required and run as specs, causing the specs to be 
# run twice. It is recommended that you do not name files matching this glob to 
# end with _spec.rb. You can configure this pattern with the --pattern 
# option on the command line or in ~/.rspec, .rspec or `.rspec-local`. 
# 
# The following line is provided for convenience purposes. It has the downside 
# of increasing the boot-up time by auto-requiring all files in the support 
# directory. Alternatively, in the individual `*_spec.rb` files, manually 
# require only the support files necessary. 
# 
# Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f } 

# Checks for pending migration and applies them before tests are run. 
# If you are not using ActiveRecord, you can remove this line. 
ActiveRecord::Migration.maintain_test_schema! 

RSpec.configure do |config| 

    # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures 
    config.fixture_path = "#{::Rails.root}/spec/fixtures" 

    # If you're not using ActiveRecord, or you'd prefer not to run each of your 
    # examples within a transaction, remove the following line or assign false 
# instead of true. 
config.use_transactional_fixtures = true 

# RSpec Rails can automatically mix in different behaviours to your tests 
# based on their file location, for example enabling you to call `get` and 
# `post` in specs under `spec/controllers`. 
# 
# You can disable this behaviour by removing the line below, and instead 
# explicitly tag your specs with their type, e.g.: 
# 
#  RSpec.describe UsersController, :type => :controller do 
#  # ... 
#  end 
# 
# The different available types are documented in the features, such as in 
# https://relishapp.com/rspec/rspec-rails/docs 
config.infer_spec_type_from_file_location! 

# Filter lines from Rails gems in backtraces. 
config.filter_rails_from_backtrace! 
# arbitrary gems may also be filtered via: 
# config.filter_gems_from_backtrace("gem name") 

#Added for Devise 
config.include Devise::Test::ControllerHelpers, :type => :controller 
end 

スペック/コントローラ/ users_controller_spec.rb

require 'rails_helper' 

describe UsersController, :type => :controller do 

    before do 
    @user = User.create!(email: 'example@example.com', password: 'example') 
    end 

    # let(:user) { User.create!(email: 'example@example.com', password: 'example') } 

    describe 'GET #show' do 

    context "when user is logged in" do 
     before do 
     sign_in @user 
     end 

     it "loads correct user details" do 
     get :show, id: @user.id 
     expect(response).to have_http_status(200) 
     expect(assigns(:user)).to eq @user 
     end 

    end 

    context "when no user is logged in" do 
     it "redirects to login" do 
     get :show, id: @user.id 
     expect(response).to redirect_to(root_path) 
     end 
    end 

    end 

end 

そして

Failures: 

    1) UsersController GET #show when user is logged in loads correct user details 
    Failure/Error: elsif user? 

    NoMethodError: 
     undefined method `user?' for #<Ability:0x007fa1d784cb98> 
    # ./app/models/ability.rb:9:in `initialize' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_additions.rb:361:in `new' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_additions.rb:361:in `current_ability' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_additions.rb:342:in `authorize!' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_resource.rb:49:in `authorize_resource' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_resource.rb:34:in `load_and_authorize_resource' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/cancancan-1.15.0/lib/cancan/controller_resource.rb:10:in `block in add_before_action' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/rails-controller-testing-1.0.1/lib/rails/controller/testing/template_assertions.rb:61:in `process' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/devise-4.2.0/lib/devise/test/controller_helpers.rb:33:in `block in process' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/devise-4.2.0/lib/devise/test/controller_helpers.rb:100:in `catch' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/devise-4.2.0/lib/devise/test/controller_helpers.rb:100:in `_catch_warden' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/devise-4.2.0/lib/devise/test/controller_helpers.rb:33:in `process' 
    # /Users/Admin/.rvm/gems/ruby-2.3.0/gems/rails-controller-testing-1.0.1/lib/rails/controller/testing/integration.rb:12:in `block (2 levels) in <module:Integration>' 
    # ./spec/controllers/users_controller_spec.rb:19:in `block (4 levels) in <top (required)>' 

    2) UsersController GET #show when no user is logged in redirects to login 
    Failure/Error: expect(response).to redirect_to(root_path) 

     Expected response to be a redirect to <http://test.host/> but was a redirect to <http://test.host/users/sign_in>. 
     Expected "http://test.host/" to be === "http://test.host/users/sign_in". 
    # ./spec/controllers/users_controller_spec.rb:29:in `block (4 levels) in <top (required)>' 

Finished in 0.90214 seconds (files took 11.05 seconds to load) 
6 examples, 2 failures 

Failed examples: 

rspec ./spec/controllers/users_controller_spec.rb:18 # UsersController GET #show when user is logged in loads correct user details 
rspec ./spec/controllers/users_controller_spec.rb:27 # UsersController GET #show when no user is logged in redirects to login 

Answer 1

友人rpsecバンドルexecを実行した後、端末からの私のフィードバック実際に私がそれを理解するのを助けました。どうやら、別々の宝石のカンカンカンが関わる問題があります。私はmodels/ability.rbファイルに入り、その中の行を変更しなければなりませんでした。元のコードで

ライン!user.admin?がちょうどuser?

た場合は、この同じ問題が発生したのであれば、それは修正です！

class Ability 
    include CanCan::Ability 

    def initialize(user) 
    user ||= User.new #guest user (not logged in) 
    # can :manage, User, id: user.id 
    if user.admin? 
     can :manage, :all 
    elsif !user.admin? 
     can :manage, User, id: user.id 
    else 
     can :read, :all 
    end 
    end 
end