eofster

struct TrackSummary {
    let trackID: Int
    let name: String
    let startTime: Double
    let distance: Float
}

eofster

protocol TrackSummaryPresenterOutput {
    func setTrackID(trackID: Int)
    func setName(name: String)
    func setDate(date: String)
    func setDistance(distance: String)
}

class TrackSummaryPresenter {
    let output: TrackSummaryPresenterOutput
    private let dateFormatter: NSDateFormatter

eofster

protocol TrackSummaryView: TrackSummaryPresenterOutput {}

eofster

import UIKit

class TrackSummaryViewController: UIViewController {
    let observer: TrackSummaryViewObserver
    private var trackID: Int!

    @IBOutlet private(set) var nameField: UITextField!
    @IBOutlet private(set) var dateLabel: UILabel!
    @IBOutlet private(set) var distanceLabel: UILabel!

eofster

protocol TrackSummaryViewObserver {
    func viewShouldReloadData(view: TrackSummaryView)
    func view(view: TrackSummaryView, didChangeTrackName name: String, forTrackWithID trackID: Int)
}

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class TrackSummaryViewEventHandler {
    let interactorFactory: InteractorFactory
    let presenterFactory: PresenterFactory

    init(interactorFactory: InteractorFactory, presenterFactory: PresenterFactory) {
        self.interactorFactory = interactorFactory
        self.presenterFactory = presenterFactory
    }
}

eofster

protocol InteractorFactory {
    func createTrackSummaryInteractor(output: TrackSummaryInteractorOutput) -> Interactor
    func createTrackNameUpdateInteractor(trackID: Int, name: String) -> Interactor
}

class InteractorFactoryImpl {
    let repository: TrackRepository

    init(repository: TrackRepository) {
        self.repository = repository

eofster

protocol PresenterFactory {
    func createTrackSummaryPresenterWithOutput(output: TrackSummaryPresenterOutput) -> TrackSummaryPresenter
}

class PresenterFactoryImpl {}

extension PresenterFactoryImpl: PresenterFactory {
    func createTrackSummaryPresenterWithOutput(output: TrackSummaryPresenterOutput) -> TrackSummaryPresenter {
        return TrackSummaryPresenter(output: output)
    }

eofster

import XCTest

class TrackSummaryViewEventHandlerTests: XCTestCase {
    private(set) var interactorSpy: InteractorSpy!
    private(set) var factorySpy: InteractorFactorySpy!
    private(set) var eventHandler: TrackSummaryViewEventHandler!

    override func setUp() {
        super.setUp()
        interactorSpy = InteractorSpy()

eofster

class InteractorFactorySpy {
    private(set) var invokedTrackID = -1
    private(set) var invokedName = ""

    private(set) var trackSummaryInteractor: Interactor!
    private(set) var trackNameUpdateInteractor: Interactor!

    func stubWithTrackSummaryInteractor(interactor: Interactor) {
        trackSummaryInteractor = interactor
    }