为什么使用Capybara、Poltergeist和Javascript的RSpec特性规范会不一致地失败?

Question

各位软件开发人员好，

我有一个Rails应用程序与通常的测试套件设置(RSpec, Capybara, Poltergeist, jQuery, Rails)。对于远程请求，我使用了一点Javascript(jQuery)。基本上它可以工作，我还不明白我的问题。所以我可以用更多的知识更新这个问题。

在我发布大量不相关的代码和配置之前，也许你可以给我一些提示来调查什么。

不一致和意外的行为是在一个功能规范中，通过Capybara中的Poltergeist测试，用户交互(点击表单和链接)通过AJAX和jQuery隐藏和显示html元素。

如果我手动测试，它似乎甚至可以正常工作。设置Capybara的默认等待时间只改变了我必须等待直到规范运行的时间=)。我还没有找到其他相关的配置或用法。

所以任何帮助/想法都是非常感激的。提前谢谢。

我spec_helper

:

require 'simplecov'
require 'rubygems'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'email_spec'
require 'rspec/autorun'
require 'rspec/rails'
require 'capybara/rspec'
require 'capybara/poltergeist'
require 'capybara/rails'
Capybara.javascript_driver = :poltergeist
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
RSpec.configure do |config|
  config.include(EmailSpec::Helpers)
  config.include(EmailSpec::Matchers)
  config.include Capybara::DSL
  #config.include Capybara::RSpecMatchers
  config.mock_with :rspec
  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.
  # set to false with Capybara + Database Cleaner
  # set to true with ActiveRecord::Base patch from Jose Valim and without Database Cleaner
  config.use_transactional_fixtures = false
  config.infer_base_class_for_anonymous_controllers = true
  config.order = "random"
  config.include FactoryGirl::Syntax::Methods
  config.after(:each) do
    # some model deletion
    model.delete_all
  end
  config.include FeatureHelpers
end
class ActiveRecord::Base
  mattr_accessor :shared_connection
  @@shared_connection = nil
  def self.connection
    @shared_connection || retrieve_connection
  end
end
# # Forces all threads to share the same connection. This works on Capybara
# # because it starts the web server in a thread
ActiveRecord::Base.shared_connection = ActiveRecord::Base.connection
FactoryGirl.reload

Answer 1

这是一个rails应用程序的capybara-poltergeist的新设置，你能检查一下这个和你的版本之间的区别吗?(我太懒了^_^)

Gemfile

group :development, :test do
  gem 'rspec-rails'
end
group :test do
  gem 'capybara'
  gem 'database_cleaner'
  gem 'poltergeist'
  gem 'phantomjs', require: 'phantomjs/poltergeist'
end

规范/spec_helper.rb

ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/rails'
require 'capybara/rspec'
require 'capybara/rails'
require 'capybara/poltergeist'
Capybara.javascript_driver = :poltergeist
Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }
ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)
RSpec.configure do |config|
  config.include FactoryGirl::Syntax::Methods
  config.order = "random"
  config.fixture_path = "#{::Rails.root}/spec/fixtures"
  config.use_transactional_fixtures = false
  config.infer_base_class_for_anonymous_controllers = false
end

规范/支持/database_cleaner.rb

require "database_cleaner"
RSpec.configure do |config|
  config.before(:suite) do
    DatabaseCleaner.clean_with(:truncation)
  end
  config.before(:each) do
    DatabaseCleaner.strategy = :transaction
  end
  config.before(:each, :js => true) do
    DatabaseCleaner.strategy = :truncation
  end
  config.before(:each) do
    DatabaseCleaner.start
  end
  config.after(:each) do
    DatabaseCleaner.clean
  end
end

规格/功能/posts_spec.rb

require "spec_helper"
describe "Posts pages" do
  let!(:post) { create :post } # Factory girl
  it "has post", js: true do
    visit posts_path
    expect(page).to have_content post.title
  end
end