Clean Swift 

ࣗݾ঺հ • ໊લɿίʔυώʔϤΞϯ • ग़਎ɿGrenoble • ৬ۀɿιϑτΤΞʔΤϯδχΞʔ • ։ൃܦݧɿDelphiʢ7೥ʣɺSwiftʢ൒೥ʣ • Facebookɿhttps://www.facebook.com/yoann.coldefy • Twitterɿ@luinily 

• View Controller͸େ͖͘ͳΔ • View Controller͕ෳࡶʹͳΔ • อक͠ʹ͍͘ • ࢓༷มߋʹରԠ͠ʹ͍͘ 

• ΫϦʔϯߏ૝ • ੹೚Λ෼͚Δ • ґଘΛੵۃతʹ཈͑Δ 

• ୯ମςετ • ςετۦಈͰࣗવʹมߋ͠΍͍͢ߏங • ϦϑΝΫτϦϯάͯ͠΋҆৺ 

iOSͰ͸Ͳ͏͢Ε͹͍͍ʁ 

View Controller Interactor Presenter VIP cycle 

View Controller Interactor Presenter VIP cycle Viewͷίϯτϩʔϧ 

View Controller Interactor Presenter VIP cycle Ϟσϧͱͷ΍ΓͱΓ 

View Controller Interactor Presenter VIP cycle දࣔ༻ͷσʔλΛ੔ܗ 

View Controller Interactor Presenter VIP cycle 

Input protocol Output
 protocol Data Data Data Data 

View Controller View Model Request View 

class ApodViewController: UIViewController { var output: ApodViewControllerOutput! } 

class ApodViewControllerTests { override func setUp() { super.setUp() window = UIWindow() setupApodViewController() outputSpy = MockApodViewControllerOutput() target.output = outputSpy } func test_viewDidLoad_fetchTodaysApodIsCalled() { // Arrange // Act loadView() // Assert XCTAssertTrue(outputSpy.fetchTodayApodCalled) } } 

class ApodViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() fetchTodaysApod() } func fetchTodaysApod() { let request = TodayApodRequest() output.fetchTodayApod(request: request) } } 

Interactor Worker Worker Worker Request Response Business Logic 


 class ApodInteractor: ApodInteractorInput { var output: ApodInteractorOutput! private var _apodWorker: ApodWorker } 


 func test_fetchTodayApod_callsApodWorkerFetchTodayApod() { // Arrange let request = TodayApodRequest() // Act target.fetchTodayApod(request: request) // Assert XCTAssertTrue(mochApodWorker.fetchTodayApodCalled) } func test_fetchTodayApod_callsOutputPresentApod() { // Arrange let request = TodayApodRequest() // Act target.fetchTodayApod(request: request) // Assert XCTAssertTrue(mochOutput.presentOutputCalled) } 


 class ApodInteractor: ApodInteractorInput { func fetchTodayApod(request: TodayApodRequest) { _apodWorker.fetchTodayAPOD() { apodData, error in let response = ApodResponse(apodData: apodData) self.output.presentApod(response: response) } } } 

Presenter Response View Model 


 class ApodPresenter: ApodPresenterInput { weak var output: ApodPresenterOutput! } 


 func test_presentApod_callsDisplayAPOD() func test_presentApod_viewModelContainsTitle() func test_presentApod_viewModelContainsFormatedDate() { {…} // Assert XCTAssertEqual(mockOutput.apodViewModel?.date, "2016೥07݄18೔") } 


 class ApodPresenter: ApodPresenterInput { func presentApod(response: ApodResponse) { let apodViewModel = makeApodViewModel(apodData: response.apodData) output.displayApod(viewModel: apodViewModel) } private func makeApodViewModel(apodData: ApodData) -> ApodDataViewModel { let title = apodData.title let date = dateToString(date: apodData.date) let explanation = apodData.explanation let copyright = apodData.copyright return ApodDataViewModel(title: title, date: date, explanation: explanation, copyright: copyright) } } 

View Controller View Model Request View 


 func test_displayApod_TitleIsDisplayed() { // Arrange loadView() let viewModel = prepareViewModel() // Act target.displayApod(viewModel: viewModel) // Assert XCTAssertEqual(target.titleLabel.text, viewModel.title) } 


 extension ApodViewController: ApodViewControllerInput { func displayApod(viewModel: ApodDataViewModel) { titleLabel.text = viewModel.title explanationTextView.text = viewModel.explanation } } 

• InteractorɺPresenterͳͲͷઃఆͱ݁ͼ͚ͭ class ApodConfigurator { func configure(viewController: ApodViewController) { let router = ApodRouter() router.viewController = viewController let presenter = ApodPresenter() presenter.output = viewController let interactor = configureInteractor(presenter: presenter) viewController.output = interactor viewController.router = router } } 


 protocol ApodViewControllerOutput { func fetchTodayApod(request: TodayApodRequest) func fetchRandomApod(request: RandomApodRequest) } protocol ApodInteractorInput { func fetchTodayApod(request: TodayApodRequest) func fetchRandomApod(request: RandomApodRequest) } 


 extension ApodInteractor: ApodViewControllerOutput { } 

·ͱΊ • ςετۦಈ։ൃ͕Ͱ͖Δ • σΟάϨʔυ͠ʹ͍͘ • ֤Ϋϥεͷ੹೚͕͸͖ͬΓ͍ͯ͠ΔͷͰɺό άमਖ਼΍มߋ͕͠΍͍͢ 

• Ϋϥεؒͷґଘੑ͕௿͍ͨΊɺผͷΫϥ ε͕ೖΓม͑΍͍͢ • View Controller͸Ϗϡʔͷ੍ޚͱೖྗؔ܎ ͷίʔυ͔͠ͳ͍ 

• ίʔυ͕݁ߏ૿͑ͯ͠·͍·͢ • ςετॻ͘ͷͰɺඞཁ࣌ؒ΋૿͑·͢ • ࠷ॳ͸ϋʔυϧ͕ͪΐͬͱߴΊ 

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