如何在黄瓜测试期间运行后台作业？

Question

使用 Cucumber 测试需要后台作业的最佳方法是什么？我需要运行 DelayedJob 和 Sneakers 工作人员在后台进行测试运行ning。

Answer 1

您可以运行后台的任何应用程序：


    @pid = Process.spawn "C:/Apps/whatever.exe"
    Process.detach(@pid)

甚至在测试完成后将其杀死：


    Process.kill('KILL', @pid) unless @pid.nil?

Answer 2

如果有人有类似的问题，我最后写了这篇文章（感谢 Square 博客 post）：

require "timeout"

class CucumberExternalWorker
  attr_accessor :worker_pid, :start_command

  def initialize(start_command)
    raise ArgumentError, "start_command was expected" if start_command.nil?

    self.start_command = start_command
  end

  def start
    puts "Trying to start #{start_command}..."
    self.worker_pid = fork do
      start_child
    end

    at_exit do
      stop_child
    end
  end

  private

  def start_child
    exec({ "RAILS_ENV" => Rails.env }, start_command)
  end

  def stop_child
    puts "Trying to stop #{start_command}, pid: #{worker_pid}"

    # send TERM and wait for exit
    Process.kill("TERM", worker_pid)

    begin
      Timeout.timeout(10) do
        Process.waitpid(worker_pid)
        puts "Process #{start_command} stopped successfully"
      end
    rescue Timeout::Error
      # Kill process if could not exit in 10 seconds
      puts "Sending KILL signal to #{start_command}, pid: #{worker_pid}"
      Process.kill("KILL", worker_pid)
    end
  end
end

这可以调用如下（将其添加到黄瓜的 env.rb）：

# start delayed job
$delayed_job_worker = CucumberExternalWorker.new("rake jobs:work")
$delayed_job_worker.start

Answer 3

您可以在 features/step_definitions/whatever_steps.rb 中创建自己的步骤定义（希望有更好的名称）

When /^I wait for background jobs to complete$/ do
  Delayed::Worker.new.work_off
end

这可以扩展到您希望运行使用该步骤的任何其他脚本。然后在测试中，它是这样的：

Then I should see the text "..."
When I wait for background jobs to complete
And I refresh the page
Then I should see the text "..."

如何在黄瓜测试期间运行后台作业？

How to run background jobs during cucumber tests?

ruby-on-rails

ruby

cucumber

如何在黄瓜测试期间 运行 后台作业？

How to run background jobs during cucumber tests?

ruby-on-rails

ruby

cucumber

如何在黄瓜测试期间运行后台作业？