Optional @objc property

[paiv]

Trying to mock this protocol:

@objc protocol Example {
    @objc optional var ignore: String { get }
}

Generates mock class with compilation error:

     var ignore: String {
        get {
            return cuckoo_manager.getter("ignore",
                superclassCall:
                    
                    Cuckoo.MockManager.crashOnProtocolSuperclassCall()
                    ,
                defaultCall: __defaultImplStub!.ignore)
//                                              ^
// Value of optional type 'String?' must be unwrapped to a value of type 'String'
        }
        
    }

[jungwonJung]

@MatyasKriz Hi, can I take this issue and work on it?

[MatyasKriz]

Hi @jungwonJung, absolutely, go for it. 🙂

I think I tried my hand but had some problems with generated mocks compilation. The type Attribute is the type to contain the information, it already has the objc case.

[Tsebo200]

Good day, @paiv, I see that we are dealing with legacy code, so I would recommend avoiding utilising Cuckoo. If I am correct, did you try to start by labelling the string as null?

as I believe this would solve some issues also added comments to explain further

import Foundation

@objc protocol Example {
 @objc optional var ignore: String { get }
}
class ExampleImpl: NSObject, Example {
 var ignore: String {
     return "Hello from real implementation"
 }
}
class MockExample: NSObject, Example {
 // Configurable storage for the optional property
 // Use this to simulate returning a value from the optional requirement
 var ignoreStub: String?

 // Because the protocol's property is optional, we can choose to implement it or not.
 // Here we provide an implementation that returns the stubbed value or an empty string by default.
 var ignore: String {
     return ignoreStub ?? ""
 }
}