无法使用 RSpec 测试获取水豚屏幕截图

Question

我浏览了 Github 文档，通过谷歌搜索寻找答案，但无法找到为什么 capybara-screenshot 没有保存任何失败截图的答案。

这是我目前为我的应用程序设置的设置。

文件

group :development, :test do
  gem 'meta_request'
  gem 'factory_girl_rails'
  gem 'faker'
  gem 'rspec-rails', '~> 2.14.1'
  gem 'capybara'
  gem 'capybara-webkit'
  gem 'capybara-screenshot'
  gem 'cucumber-rails', :require => false
  gem 'database_cleaner'
  gem 'selenium-webdriver'
  gem 'pry'
end

Gemfile.lock

capybara (2.3.0)
  mime-types (>= 1.16)
  nokogiri (>= 1.3.3)
  rack (>= 1.0.0)
  rack-test (>= 0.5.4)
  xpath (~> 2.0)
capybara-screenshot (0.3.19)
  capybara (>= 1.0, < 3)
  launchy
capybara-webkit (1.1.0)
  capybara (~> 2.0, >= 2.0.2)
  json
rspec-core (2.14.8)
rspec-expectations (2.14.5)
  diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.14.6)
rspec-rails (2.14.2)
  actionpack (>= 3.0)
  activemodel (>= 3.0)
  activesupport (>= 3.0)
  railties (>= 3.0)
  rspec-core (~> 2.14.0)
  rspec-expectations (~> 2.14.0)
  rspec-mocks (~> 2.14.0)

初始值设定项/capybara.rb

Capybara.register_driver :selenium_chrome do |app|
  Capybara::Selenium::Driver.new(app, :browser => :chrome)
end

Capybara::Screenshot.register_driver(:selenium_chrome) do |driver, path|
  driver.browser.save_screenshot(path)
end

规范助手

require 'rspec/autorun'

# Include Capybara Capabilities
require 'capybara/rspec'
require 'capybara/rails'
require 'capybara-screenshot/rspec'


# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }

# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

Capybara.save_and_open_page_path = "#{Rails.root.join("tmp")}/acceptance_tests/"

Capybara::Screenshot.append_timestamp = false
Capybara::Screenshot.register_filename_prefix_formatter(:rspec) do |example|
  "screenshot_#{example.description.gsub(' ', '-').gsub(/^.*\/spec\//,'')}"
end

Capybara::Screenshot.autosave_on_failure = true

home_page_spec.rb

require 'spec_helper'

shared_examples 'home_page_tests' do |driver|
  context "When using the #{driver.to_s} driver" do
    before do
      Capybara.current_driver = driver
    end

    describe 'home page', :js => true do
      context 'the user is not logged into the application' do
        it 'displays login and sign in buttons' do
          visit root_path
          expect(page).to have_selector('.btn', text:'Sign i')
        end
      end
    end
  end
end

describe 'Running the homepage tests' do
  it_behaves_like 'home_page_tests', :selenium_chrome
end

我已经尝试了几种变体来使这个工作，但我从来没有能够得到一个屏幕截图来避免失败。我可以手动调用屏幕截图功能，但考虑到 gem 应该在测试失败时自动生成，我觉得有些不对劲。有趣的是，我能够让 Gem 的黄瓜部分工作得很好。有没有其他人在使用 RSpec 获取水豚屏幕截图时遇到任何麻烦？任何帮助，将不胜感激。

Answer 1

我建议在capybara-screenshot上打开一个问题，并提供最小的可重现示例。