Test Doubles | raywenderlich.com

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This is a companion discussion topic for the original entry at https://www.raywenderlich.com/8458722-testing-in-ios/lessons/15
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Hi Jessy

Thank you for the tutorial. I noticed the tests in the final project for this episode crash.
Below is the error message -

DogPatch[54511:2941039] *** Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reason: ‘-[_TtCFVFC13DogPatchTests20AsynchronousTestCase11test_clientFzT_T_L_17FakeDataTaskMaker8dataTaskFT4withV10Foundation3URL17completionHandlerFTGSqVS2_4Data_GSqCSo13NSURLResponse_GSqPs5Error___T__CSo20NSURLSessionDataTaskL_12FakeDataTask _onqueue_resume]: unrecognized selector sent to instance 0x7ff42012a510’

Could you please help with this?
Thank You

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Sorry, this initializer was already deprecated, but since this course came out, it has become truly broken.

final class FakeDataTask: URLSessionDataTask {
  override init() { }
}
return FakeDataTask()

You can replace it with any sort of URLSessionDataTask. For example:

return URLSession.shared.dataTask(with: Self.dummyURL)