Ruby-on-rails 如何为 Rails 控制器添加延迟以进行测试？
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How to add a delay to Rails controller for testing?
提问by RSG
I'm testing the front end of a web application and want to test how some of the transitions appear with various delays in between AJAX requests. Is there any way I can add a sleep(1500)to my controller to delay the response?
我正在测试 Web 应用程序的前端，并想测试一些转换如何在 AJAX 请求之间出现各种延迟。有什么方法可以sleep(1500)向我的控制器添加一个来延迟响应？
回答by RSG
Controller like so:
像这样的控制器：
def catalog
#Makes the request pause 1.5 seconds
sleep 1.5
...
end
Even better: only add the sleep for the dev environment.
更好的是：只为开发环境添加睡眠。
回答by jmarceli
Elaborating on accepted answer. If you have some base controller like the default ApplicationControllerwhich is extended by any other controller you may define the following filter:
详细说明已接受的答案。如果您有一些基本控制器，例如ApplicationController由任何其他控制器扩展的默认控制器，您可以定义以下过滤器：
class ApplicationController < ActionController::Base
# adds 1s delay only if in development env
before_filter if: "Rails.env.development?" do
sleep 1
end
end
Where: 1is number of seconds to wait before returning any response, see sleepdocs
其中： 1是在返回任何响应之前等待的秒数，请参阅sleep文档
This filter will be triggered only ifyour application is in developmentenvironment and it will add desired delay to every requestprocessed by your application.
仅当您的应用程序处于开发环境中时才会触发此过滤器，它将为应用程序处理的每个请求添加所需的延迟。
