Swift单元测试-等待服务响应

Question

I'm try make the Unit Test from my app. My app include service integration. I'm implementing an Adapter for this task and I need wait the service response for process the response and then validate the response object.

I have 2 delegate function that are called when the service response arrive.

 func didReceiveAPIResults(#results: AnyObject, path: String, serverTag: String) 


 func didReceiveAPIResultsFailed(#error: NSError, errorObject: AnyObject, path: String, serverTag: String) 

I need process the response in the previous functions and then finish the Unit Test.

How I can specify this?

Answer 1

A test which depends on an external API is not much of a "unit" test. It may be more reliably to implement a test double for your adapter to return a consistent response. Such a double might then be able to provide a synchronous interface by calling your delegate methods immediately.

If you really need to test asynchronous behavior XCTest provides XCTestExpectation for Writing Tests of Asynchronous Operations . Most third party testing libraries provide something similar as well.