Testing Network Timeouts and Errors with Ruby

Question

I'm writing a wrapper for a flakey 3rd party API and would like some way to test my code's error handling.

What do people do when they want to test things like:

• API responding with various http codes (400-599)
• Connection timeouts (host is down, dns issues, etc)

Is there a correct way to do this? Right now i'm simply using a test host, adding mod_rewrite rules such as:

RewriteRule ^500.html$ / [R=500,L,NE]
RewriteRule ^501.html$ / [R=501,L,NE]
RewriteRule ^404.html$ / [R=404,L,NE]

I then make sure my code handles those use cases appropriately but it feels wrong and provides no way to test a timeout error.

Answer 1

If you're going to be testing routes like that, I would highly suggest a combination of rspec and capybara. The rspec framework gives a lot of flexibility, and the high user base provides a ton of places for you to get started.

Answer 2

我建议您使用mocha（rSpec中的默认值），rr，flexmock等模拟/存根api请求。还有一些特殊的模拟库可用于处理HTTP请求，但是我不确定是否可以模拟整个响应或仅模拟主体。