capybara - 无法执行save_screenshot在Capybara/Poltergeist中提供NotSupportedByDriver

Question

我正在与Poltergeist一起运行Capybara，我有一个步骤:

Given(/^take a screenshot$/) do
  page.save_screenshot("/tmp/page.png", :full => true)
end

它一直在说:

Capybara::Driver::Base#save_screenshot (Capybara::NotSupportedByDriverError)
./features/step_definitions/job_steps.rb:19:in `/^take a screenshot$/'
features/jobs_board/user_management.feature:9:in `And take a screenshot'

有什么想法在哪里看？我在env.rb中的配置看起来像这样:

Capybara.javascript_driver = :poltergeist
Capybara.current_driver = :poltergeist

Answer 1

弄清楚了。我需要添加:

Capybara.default_driver = :poltergeist 

并改变

require 'poltergeist'

至

require 'capybara/poltergeist'