Beginning iOS Unit and UI Testing - Part 3: Async and | Ray Wenderlich

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In this video tutorial on unit and UI testing in iOS, you’ll learn how to write unit tests for your asynchronous code and create mock objects in Swift.

This is a companion discussion topic for the original entry at https://www.raywenderlich.com/3573-beginning-ios-unit-and-ui-testing/lessons/3
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I’ve discovered a couple of errors in the challenge solution documentation. In the class MockCloudNetworkService, the class should inherit from CloudNetworkManager, not CloudNetworkService, and the public methods login and loadPancakeHouses should be overridden:

public class MockCloudNetworkService: CloudNetworkManager {
    public lazy var pancakeHouses: [PancakeHouse] = {
        let bundle = Bundle(for: type(of: self))
        let path = bundle.path(forResource: "test_pancake_houses", ofType: "plist")!
        let array = NSArray(contentsOfFile: path)
        return PancakeHouse.from(array as! [[String : Any]])
    }()

    public override func login(userName: String, password: String,
                      success: () -> (),
                      failure: (Error) -> ()) {
        success()
    }

    public override func loadPancakeHouses(success: @escaping ([PancakeHouse]) -> (),
                                  failure: @escaping (CloudNetworkError) -> ()) {
        success(pancakeHouses)
    }
}

hope this helps anyone who might get stuck

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@jrg.developer wondering where to get the original project file as I want to follow the steps with this video?