PHP UDP socket_recv（）超时(PHP UDP socket_ recv() timeout)

 对此最简单的解决方案是仅定义更改值的数组并使用FactoryGirl步骤中的数组 
 
urls = [nil, "https://www.facebook.com/rihanna/videos/10155221800656676/", ...]
xs = [nil, 500, ...]
ys = [nil, 200, ...]
(0..4).each do |n|
  let!(:"deal1_step#{n}") {
    FactoryGirl.create(:step,
      video_url: urls[n],
      video_x: xs[n],
      video_y: ys[n],
      st_background_asset_filename: "campaigns/042017/assets_for_tests_and_dev/backgroundimage#{n}.jpg",  
      deal: deal1)
  }
end
 
 对于其他任何事情你需要了解let / let! 作品。 let在示例中定义一个方法（由传入的符号命名）（它实际上在混合的模块上，效果相同），它会记忆传递给它的块的响应。 let! 调用let然后定义一个调用方法let的前块，以便在测试示例之前运行它。 这就是为什么你得到错误' deal1_step1在示例组上不可用（例如......），因为该方法是在示例上定义的，而不是在组上。 
 
 因此，如果您不想执行上面的数组示例之类的操作，那么您需要在一个在示例上下文中运行的块中进行属性更新，因此before块before - 就像 
 
(0..4).each do |n|
    let!(:"deal1_step#{n}") {
      FactoryGirl.create(:step,
        order_nb: n,
        message_content: "this is message #{n}",        
       background_asset_filename: "campaigns/assets_for_tests/backgroundimage#{n}.jpg",  
        deal: deal)
    }
  end
before do 
  deal1_step1.video_url = "https://www.facebook.com/rihanna/videos/10155221800656676/"
  deal1_step1.video_x = 500
  deal1_step1.video_y = 500
  # may need to save deal1_step1 depending on exactly what you're looking for

  deal1_step2.update_attributes(video_url: "https://www.facebook.com/rihanna/videos/10155221800656676/", video_x: 500, video_y: 500 )

  ...
end

The easiest solution to this is to just define arrays of the changing values and use those in your FactoryGirl steps
 
urls = [nil, "https://www.facebook.com/rihanna/videos/10155221800656676/", ...]
xs = [nil, 500, ...]
ys = [nil, 200, ...]
(0..4).each do |n|
  let!(:"deal1_step#{n}") {
    FactoryGirl.create(:step,
      video_url: urls[n],
      video_x: xs[n],
      video_y: ys[n],
      st_background_asset_filename: "campaigns/042017/assets_for_tests_and_dev/backgroundimage#{n}.jpg",  
      deal: deal1)
  }
end
 
For anything else you need to understand how let/let! works. let defines a method (named by the symbol passed in) on the example (it's actually on a module that gets mixed in, same effect) which memoizes the response of the block passed to it. let! calls let and then defines a before block that calls the method let defined so it has already been run before the test example is. That's why you're getting the error 'deal1_step1 is not available on an example group (e.g. a ...', because the method is defined on the example, not on the group.
 
Therefore, if you don't want to do something like the arrays example above then you'd need to do your attribute updating in a block that gets run in the example context, so a before block - like
 
(0..4).each do |n|
    let!(:"deal1_step#{n}") {
      FactoryGirl.create(:step,
        order_nb: n,
        message_content: "this is message #{n}",        
       background_asset_filename: "campaigns/assets_for_tests/backgroundimage#{n}.jpg",  
        deal: deal)
    }
  end
before do 
  deal1_step1.video_url = "https://www.facebook.com/rihanna/videos/10155221800656676/"
  deal1_step1.video_x = 500
  deal1_step1.video_y = 500
  # may need to save deal1_step1 depending on exactly what you're looking for

  deal1_step2.update_attributes(video_url: "https://www.facebook.com/rihanna/videos/10155221800656676/", video_x: 500, video_y: 500 )

  ...
end