[Feat] #175 - Onboarding Service, ViewModel Test Code 작성

[cchanmi]

작업한 내용

• 온보딩 alarm, userNickname network layer, viewModel test code 작성했어요.

PR Point

• serivce layer test code 작성시 임의의 Mock provder를 생성해요.

protocol MockProviderProtocol {
    associatedtype TargetEndPoint: TargetType
    func makeSuccessProvider() -> MoyaProvider<TargetEndPoint>
}

extension MockProviderProtocol {
    func makeSuccessProvider() -> MoyaProvider<TargetEndPoint> {
        let endpointClosure = { (target: TargetEndPoint) -> Endpoint in
            return Endpoint(url: target.path,
                            sampleResponseClosure: { .networkResponse(200, target.sampleData) },
                            method: target.method,
                            task: target.task,
                            httpHeaderFields: target.headers)
        }
        return MoyaProvider<TargetEndPoint>(endpointClosure: endpointClosure,
                                            stubClosure: MoyaProvider.immediatelyStub)
    }
}

mockProviderProtocol 채택 후, 초기화시, service 초기화시 MockProvider를 넣어 줍니다.

    override func setUpWithError() throws {
        let mockSuccessProvider: MoyaProvider<OnboardingEndPoint> = makeSuccessProvider()
        sut = OnboardingService(provider: mockSuccessProvider)
    }

• viewModel test시에도 실제 서버 통신이 아닌, 서버 통신이 된 것처럼 response만 내려줄 것이기 때문에, onboardingServicecProtocol을 채택한 mockService 코드를 작성했어요.

final class OnboardingServiceMock: OnboardingServiceProtocol {
    
    func trainingGoalGetAPI(completion: @escaping (Result<[Smeem_iOS.Goal], Smeem_iOS.SmeemError>) -> ()) {
        completion(.success([Goal(goalType: "test", name: "안녕")]))
    }
    
    func trainingWayGetAPI(param: String, completion: @escaping (Result<Smeem_iOS.TrainingWayResponse, Smeem_iOS.SmeemError>) -> ()) {
        completion(.success(TrainingWayResponse(name: "test",
                                                way: "test",
                                                detail: "test")))
    }

실제 VC에서는 ViewModel 초기화시 본래 service, testCode 작성시에는 mock service 넣어 주어서 사용하면 됩니다.

    override func setUpWithError() throws {
        self.provider = OnboardingServiceMock()
        self.viewModel = TrainingAlarmViewModel(provider: provider)
        self.cancelBag = Set<AnyCancellable>()
}

• Resolved: [Refactor] 온보딩 ViewModel TestCode 작성 #175