Capybara/selenium/chrome：test仅在调用save_screenshot时通过

Question

我正在从恶作剧者迁移到无头铬的过程中。

group :test do
  # Capybara - Headless, JavaScript-executing browser for Selenium
  gem 'selenium-webdriver'  # Selenium webdriver (needed to use Chrome driver)
  gem 'webdrivers', '~> 4.0', require: false # Run Selenium tests more easily with automatic installation and updates for all supported webdrivers.
  gem 'capybara-screenshot' # Automatically save screen shots when a scenario fails
  ...
end

Capybara.javascript_driver = :selenium_chrome_headless

it 'shows the fullscreen toggler on focus', js: true do
  visit new_user_path
  page.execute_script("$('#user_about').focus()")
  expect(page).to have_css '.textarea-fullscreenizer-toggler'
end

expected to find visible css ".textarea-fullscreenizer-toggler" within #<Capybara::Node::Element tag="div" path="/HTML/BODY[1]/MAIN[1]/DIV[1]/DIV[1]/FORM[1]/FIELDSET[1]/DIV[1]/DIV[1]/DIV[5]"> but there were no matches. Also found "", which matched the selector but not all filters. 

有趣的是，当在聚焦元素后放置save_screenshot时，规范也通过了无头铬！

我在这里能做什么？我在正确的轨道上？我应该尝试https://github.com/twalpole/appariation驱动程序吗？

Answer 1

您也可以在helper capybara.rb文件中为headless chrome尝试类似的方法。

require "selenium/webdriver"

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

Capybara.register_driver :headless_chrome do |app|
  capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
    chromeOptions: { args: %w(headless disable-gpu) }
  )

  Capybara::Selenium::Driver.new app,
    browser: :chrome,
    desired_capabilities: capabilities
end

Capybara.javascript_driver = :headless_chrome

这对我有效。可能对你也有用。