RailsTutorial - 章節8.4.3 - 在集成測試中添加用戶之後，測試數據庫未被清除

Question

我很困惑這一點。在本教程

一切都進展順利，到目前爲止，但是當我的代碼這個塊添加到我的/spec/requests/users_spec.rb文件，事情開始南下：

describe "success" do 

    it "should make a new user" do 
    lambda do 
     visit signup_path 
     fill_in "Name",   :with => "Example User" 
     fill_in "Email",  :with => "ryan@example.com" 
     fill_in "Password",  :with => "foobar" 
     fill_in "Confirmation", :with => "foobar" 
     click_button 
     response.should have_selector("div.flash.success", 
             :content => "Welcome") 
     response.should render_template('users/show') 
     end.should change(User, :count).by(1) 
     end 
    end 

如果我清除測試數據庫（rake db：test：prepare），所有測試都通過。但是如果我再次運行測試，它們會失敗，因爲測試數據庫不會清除上面添加的代碼的記錄。

我已經使用了相當多的東西，並且大部分發現都指向了config.use_transactional_fixtures設置，或者代碼中的嵌套問題。

我很確定這些都不適合我。這裏是我的spec_helper.rb文件：

require 'rubygems' 
require 'spork' 

Spork.prefork do 
    ENV["RAILS_ENV"] ||= 'test' 
    require File.expand_path("../../config/environment", __FILE__) 
    require 'rspec/rails' 

Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f} 

    RSpec.configure do |config| 
    config.mock_with :rspec 
    config.fixture_path = "#{::Rails.root}/spec/fixtures" 
    config.use_transactional_fixtures = true 

    # Needed for Spork 
    ActiveSupport::Dependencies.clear 
    end 

end 

Spork.each_run do 
    load "#{Rails.root}/config/routes.rb" 
    Dir["#{Rails.root}/app/**/*.rb"].each { |f| load f } 
end 

這裏是我users_spec.rb：

describe "Users" do 

    describe "signup" do 

    describe "failure" do 

     it "should not make a new user" do 
     lambda do 
      visit signup_path 
      fill_in "Name",   :with => "" 
      fill_in "Email",  :with => "" 
      fill_in "Password",  :with => "" 
      fill_in "Confirmation", :with => "" 
      click_button 
      response.should render_template('users/new') 
      response.should have_selector("div#error_explanation") 
     end.should_not change(User, :count) 
     end 
    end 


    describe "success" do 

     it "should make a new user" do 
     lambda do 
      visit signup_path 
      fill_in "Name",   :with => "Example User" 
      fill_in "Email",  :with => "ryan@example.com" 
      fill_in "Password",  :with => "foobar" 
      fill_in "Confirmation", :with => "foobar" 
      click_button 
      response.should have_selector("div.flash.success", 
             :content => "Welcome") 
      response.should render_template('users/show') 
     end.should change(User, :count).by(1) 
     end 
    end 
    end 
end 

任何想法？謝謝。

隨着mpapis的答案，我能夠得到這個工作。這裏是我的最新規範/請求/ user_spec.rb文件：

require 'spec_helper' 
require 'database_cleaner' 
DatabaseCleaner.strategy = :truncation 

describe "Users" do 

    describe "signup" do 

    describe "failure" do 

     it "should not make a new user" do 
     lambda do 
      visit signup_path 
      fill_in "Name",   :with => "" 
      fill_in "Email",  :with => "" 
      fill_in "Password",  :with => "" 
      fill_in "Confirmation", :with => "" 
      click_button 
      response.should render_template('users/new') 
      response.should have_selector("div#error_explanation") 
     end.should_not change(User, :count) 
     end 
    end 


    describe "success" do 

     it "should make a new user" do 
     lambda do 
      visit signup_path 
      fill_in "Name",   :with => "Example User" 
      fill_in "Email",  :with => "ryan@example.com" 
      fill_in "Password",  :with => "foobar" 
      fill_in "Confirmation", :with => "foobar" 
      click_button 
      response.should have_selector("div.flash.success", 
             :content => "Welcome") 
      response.should render_template('users/show') 
     end.should change(User, :count).by(1) 
     DatabaseCleaner.clean 
     end 
    end 
    end 
end 

Answer 1

至於我擔心的測試意見葉數據庫不清的狀態，你應該嘗試https://github.com/bmabey/database_cleaner它是用於後黃瓜測試清洗，而是主頁上提供了Rspec的示例。

Answer 2

mpapis的答案得到它的工作。

一定要包括在您的Gemfile例如：

group :test do 
    gem 'rspec', '2.5.0' 
    gem 'webrat', '0.7.1' 
    gem 'spork', '0.9.0.rc4' 
    gem 'factory_girl_rails' 
    gem 'database_cleaner' 
end  

和

bundle install