How to use TableViewController class

...65				switch response.result {66				case .success(let value):67					reachLimit = false68                    isConnectedInternet = true69                    if ((viewController as? BaseTableViewController) != nil){70                        (viewController as! BaseTableViewController).somethingWrong = false71                    }else if((viewController as? DetailViewController) != nil){72                    (viewController as! DetailViewController).somethingWrong = false73                    }else if((viewController as? ProfileViewController) != nil){74                        (viewController as! ProfileViewController).somethingWrong = false75                    }76                    77                    let json = JSON(value)78                    keychain["refresh_token"] = nil79                    keychain["access_token"] = nil80                    keychain["refresh_token"] = json["refresh_token"].stringValue81                    keychain["access_token"] = json["access_token"].stringValue82                    83                    BaseNetworkRequest.loadProfile()84				case .failure(let error):85					if let statusCode = response.response?.statusCode {86						if statusCode == 403 {87                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ExceedRateLimit"), object: nil)88						} else {89							MainViewController.logout()90							let alert = UIAlertController(title: NSLocalizedString("Failed to login", comment: ""), message: NSLocalizedString("Please login to proceed with the operation", comment: ""), preferredStyle: .alert)91							let ok = UIAlertAction(title: "Ok", style: .cancel, handler: nil)92							alert.addAction(ok)93							viewController.present(alert, animated: true, completion: nil)94						}95					} else {96						if (error.localizedDescription.contains("-1009") ||97                            error.localizedDescription.contains("-1001") ||98                            error.localizedDescription.contains("-1005")) {99                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "CanNotAccessInternet"), object: nil)100						} else {101							MainViewController.logout()102							let alert = UIAlertController(title: NSLocalizedString("Failed to login", comment: ""), message: NSLocalizedString("Please login to proceed with the operation", comment: ""), preferredStyle: .alert)103							let ok = UIAlertAction(title: "Ok", style: .cancel, handler: nil)104							alert.addAction(ok)105							viewController.present(alert, animated: true, completion: nil)106						}107					}108				}109			})110	}111    // MARK: get collection photos112    class func getCollections(_ tableViewController: BaseTableViewController) {113        if (tableViewController.page <= tableViewController.totalPages || tableViewController.page == 1) {114            Alamofire.request("https://api.unsplash.com/collections/curated", parameters: [115                "client_id": clientID!,116                "page": tableViewController.page,117                "per_page": tableViewController.perItem118                ]).validate().responseJSON(completionHandler: {response in119                    switch response.result {120                    case .success(let value):121                        reachLimit = false122                        tableViewController.somethingWrong = false123                        isConnectedInternet = true124                        tableViewController.refreshControl?.endRefreshing()125                        if (response.response?.allHeaderFields["x-total"] != nil){126                            tableViewController.totalItems = Int(response.response?.allHeaderFields["x-total"] as! String)!127                        }128                        if (tableViewController.totalItems == 0) {129                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)130                            tableViewController.successfullyGetJsonData = true131                            tableViewController.tableView.reloadData()132                            return133                        }134                        tableViewController.page += 1135                        136                        let json = JSON(value)137                        for (_,subJson):(String, JSON) in json {138                            let collectionID:Int = subJson["id"].intValue139                            if (!tableViewController.collcectionsArray.contains(collectionID)) {140                                tableViewController.collcectionsArray.append(collectionID)141                                BaseNetworkRequest.getPhotos(tableViewController, id: collectionID)142                            }143                        }144                    case .failure(let error):145                        tableViewController.refreshControl?.endRefreshing()146                        BaseNetworkRequest.failure(response: response, error: error)147                    }148                })149        } else {150            tableViewController.footer.endRefreshingWithNoMoreData()151        }152        if (tableViewController.footer.isRefreshing) {153            tableViewController.footer.endRefreshing()154        }155    }156    class func getPhotos(_ tableViewController: BaseTableViewController, id: Int) {157        Alamofire.request("https://api.unsplash.com/collections/curated/\(id)/photos", parameters: [158            "client_id": clientID!159            ]).validate().responseJSON(completionHandler: {response in160                switch response.result {161                case .success(let value):162                    reachLimit = false163                    tableViewController.somethingWrong = false164                    isConnectedInternet = true165                    166                    let json = JSON(value)167                    for (_, subJson): (String, JSON) in json {168                        var photoDic = Dictionary<String, String>()169                        photoDic["regular"] = subJson["urls"] ["regular"].stringValue170                        photoDic["small"] = subJson["urls"] ["small"].stringValue171                        photoDic["full"] = subJson["urls"] ["full"].stringValue172                        photoDic["raw"] = subJson["urls"] ["raw"].stringValue173                        photoDic["id"] = subJson["id"].stringValue174                        photoDic["download"] = subJson["links"] ["download"].stringValue175                        photoDic["name"] = subJson["user"] ["name"].stringValue176                        photoDic["profileUrl"] = subJson["user"] ["links"]["html"].stringValue177                        tableViewController.photosArray.append(photoDic)178                    }179                    tableViewController.successfullyGetJsonData = true180                    tableViewController.tableView.reloadData()181                case .failure(let error):182                    BaseNetworkRequest.failure(response: response, error: error)183                }184            })185    }186    // MARK: get search results187    class func getSearchResults(_ tableViewController: SearchTableViewController) {188        tableViewController.isSearching = false189        tableViewController.noData = false190        if (tableViewController.page <= tableViewController.searchTotalPages || tableViewController.page == 1) {191            Alamofire.request("https://api.unsplash.com/search/photos", parameters: [192                "client_id": clientID!,193                "query": tableViewController.query,194                "page": tableViewController.page,195                "per_page": tableViewController.searchPerItem196                ]).validate().responseJSON(completionHandler: {response in197                    switch response.result {198                    case .success(let value):199                        reachLimit = false200                        tableViewController.somethingWrong = false201                        isConnectedInternet = true202                        tableViewController.refreshControl?.endRefreshing()203                        204                        let json = JSON(value)205                        tableViewController.totalItems = json["total"].intValue206                        if (tableViewController.totalItems == 0) {207                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "NoData"), object: nil)208                            tableViewController.successfullyGetJsonData = true209                            tableViewController.tableView.reloadData()210                            return211                        }212                        tableViewController.page += 1213                        214                        for (_, subJson): (String, JSON) in json["results"] {215                            var photoDic = Dictionary<String, String>()216                            photoDic["regular"] = subJson["urls"] ["regular"].stringValue217                            photoDic["small"] = subJson["urls"] ["small"].stringValue218                            photoDic["full"] = subJson["urls"] ["full"].stringValue219                            photoDic["raw"] = subJson["urls"] ["raw"].stringValue220                            photoDic["id"] = subJson["id"].stringValue221                            photoDic["download"] = subJson["links"] ["download"].stringValue222                            photoDic["name"] = subJson["user"] ["name"].stringValue223                            photoDic["profileUrl"] = subJson["user"] ["links"]["html"].stringValue224                            if (!tableViewController.photoID.contains(subJson["id"].stringValue)) {225                                tableViewController.photoID.append(subJson["id"].stringValue)226                                tableViewController.photosArray.append(photoDic)227                            }228                        }229                        tableViewController.successfullyGetJsonData = true230                        tableViewController.tableView.reloadData()231                    case .failure(let error):232                        tableViewController.refreshControl?.endRefreshing()233                        BaseNetworkRequest.failure(response: response, error: error)234                    }235                })236        } else {237            tableViewController.footer.endRefreshingWithNoMoreData()238        }239        if (tableViewController.footer.isRefreshing) {240            tableViewController.footer.endRefreshing()241        }242    }243	244	// MARK: like or unlike a photo245    class func likePhoto(_ viewController: DetailViewController, id: String) {246        Alamofire.request("https://api.unsplash.com/photos/\(id)/like", method: .post, headers: ["Authorization": "Bearer \(keychain["access_token"]!)"]).validate().responseJSON(completionHandler: {response in247                    switch response.result {248                    case .success:249                        reachLimit = false250                        viewController.somethingWrong = false251                        isConnectedInternet = true252                        likedPhotoIDArray.add(id)253                        DispatchQueue.main.async() {254                            viewController.likeButton.image = UIImage(named: "like-after")255                        }256                    case .failure(let error):257                        BaseNetworkRequest.failure(response: response, error: error)258                    }259                })260    }261	class func unlikePhoto(_ tableViewController: DetailViewController, id: String) {262        Alamofire.request("https://api.unsplash.com/photos/\(id)/like", method: .delete, headers: ["Authorization": "Bearer \(keychain["access_token"]!)"]).validate().responseJSON(completionHandler: {response in263				switch response.result {264				case .success:265					reachLimit = false266					tableViewController.somethingWrong = false267                    isConnectedInternet = true268                    likedPhotoIDArray.remove(id)269					DispatchQueue.main.async() {270						tableViewController.likeButton.image = UIImage(named: "like-before")271					}272				case .failure(let error):273					BaseNetworkRequest.failure(response: response, error: error)274				}275			})276	}277	278	// MARK: load user profile279	class func loadProfile(_ viewController: ProfileViewController? = nil) {280        Alamofire.request("https://api.unsplash.com/me", headers: ["Authorization": "Bearer \(keychain["access_token"]!)"]).validate().responseJSON(completionHandler: {response in281				switch response.result {282				case .success(let value):283					reachLimit = false284                    isConnectedInternet = true285                    let json = JSON(value)286                    username = json["username"].stringValue287                    avatarURL = json["portfolio_url"].stringValue288                    if (viewController != nil) {289                        DispatchQueue.main.async() {290                            if avatarURL != "" {291                                viewController!.avatar.sd_setImage(with: URL.init(string: avatarURL))292                            }293                            viewController!.userLabel.text = username294                        }295                        if (!username.isEmpty) {296                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "LoadLikedPhotos"), object: nil)297                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "LoadPostPhotos"), object: nil)298                        }299                    } else {300                        BaseNetworkRequest.getLikedPhoto()301                    }302				case .failure(let error):303                    BaseNetworkRequest.failure(response: response, error: error)304				}305			})306    }307    // MARK: get liked photos308    class func getLikedPhoto(_ tableViewController: LikedTableViewController? = nil) {309        tableViewController?.noData = false310        if (likedPhotoIDArray.count < likedTotalItems || likedPhotoIDArray.count == 0) {311            Alamofire.request("https://api.unsplash.com/users/\(username)/likes", parameters: [312                "username":username,313                "page": likedPage,314                "per_page": likedPerItem315                ], headers: ["Authorization": "Bearer \(keychain["access_token"]!)"]).validate().responseJSON(completionHandler: {response in316                    switch response.result {317                    case .success(let value):318                        reachLimit = false319                        tableViewController?.somethingWrong = false320                        isConnectedInternet = true321                        likedTotalItems = Int(response.response?.allHeaderFields["x-total"] as! String)!322                        if (likedTotalItems == 0) {323                            tableViewController?.noData = true324                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "NoLikedPhoto"), object: nil)325                            tableViewController?.refreshControl?.endRefreshing()326                            tableViewController?.successfullyGetJsonData = true327                            tableViewController?.tableView.reloadData()328                            return329                        }330                        likedPage += 1331                        332                        let json = JSON(value)333                        for (_,subJson):(String, JSON) in json {334                            var photoDic = Dictionary<String, String>()335                            photoDic["regular"] = subJson["urls"] ["regular"].stringValue336                            photoDic["small"] = subJson["urls"] ["small"].stringValue337                            photoDic["full"] = subJson["urls"] ["full"].stringValue338                            photoDic["raw"] = subJson["urls"] ["raw"].stringValue339                            photoDic["id"] = subJson["id"].stringValue340                            photoDic["download"] = subJson["links"] ["download"].stringValue341                            photoDic["name"] = subJson["user"] ["name"].stringValue342                            photoDic["profileUrl"] = subJson["user"] ["links"]["html"].stringValue343                            if (!likedPhotoIDArray.contains(subJson["id"].stringValue)) {344                                likedPhotoIDArray.add(subJson["id"].stringValue)345                                likedPhotosArray.append(photoDic)346                            }347                        }348                        BaseNetworkRequest.getLikedPhoto(tableViewController)349                    case .failure(let error):350                        tableViewController?.refreshControl?.endRefreshing()351                        if let statusCode = response.response?.statusCode {352                            if statusCode == 403 {353                                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ExceedRateLimit"), object: nil)354                                if (tableViewController != nil){355                                    BaseNetworkRequest.reachLimitNotification(tableViewController!)356                                }357                            } else if (statusCode == 401) {358                                if (tableViewController != nil) {359                                    BaseNetworkRequest.refreshAccessToken(tableViewController!)360                                }361                            }  else {362                                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)363                                if (tableViewController != nil){364                                    BaseNetworkRequest.somethingWrongNotification(tableViewController!)365                                }366                            }367                        } else {368                            if (error.localizedDescription.contains("-1009") ||369                                error.localizedDescription.contains("-1001") ||370                                error.localizedDescription.contains("-1005")) {371                                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "CanNotAccessInternet"), object: nil)372                                if (tableViewController != nil){373                                    BaseNetworkRequest.noNetworkNotification(tableViewController!)374                                }375                            } else {376                                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)377                                if (tableViewController != nil){378                                    BaseNetworkRequest.somethingWrongNotification(tableViewController!)379                                }380                            }381                        }382                    }383                })384        } else {385            tableViewController?.refreshControl?.endRefreshing()386            tableViewController?.photosArray = likedPhotosArray387            tableViewController?.successfullyGetJsonData = true388            tableViewController?.tableView.reloadData()389            return390        }391    }392    // MARK: get post photos393    class func getPostPhoto(_ tableViewController: PostTableViewController) {394        tableViewController.noData = false395        Alamofire.request("https://api.unsplash.com/users/\(username)/photos", parameters: [396            "username": username,397            ], headers: ["Authorization": "Bearer \(keychain["access_token"]!)"]).validate().responseJSON(completionHandler: {response in398                switch response.result {399                case .success(let value):400                    reachLimit = false401                    tableViewController.somethingWrong = false402                    isConnectedInternet = true403                    tableViewController.refreshControl?.endRefreshing()404                    tableViewController.totalItems = Int(response.response?.allHeaderFields["x-total"] as! String)!405                    if (tableViewController.totalItems == 0) {406                        tableViewController.noData = true407                        NotificationCenter.default.post(name: NSNotification.Name(rawValue: "NoPostPhoto"), object: nil)408                        tableViewController.refreshControl?.endRefreshing()409                        tableViewController.successfullyGetJsonData = true410                        tableViewController.tableView.reloadData()411                        return412                    }413                    414                    let json = JSON(value)415                    for (_,subJson):(String, JSON) in json {416                        var photoDic = Dictionary<String, String>()417                        photoDic["regular"] = subJson["urls"] ["regular"].stringValue418                        photoDic["small"] = subJson["urls"] ["small"].stringValue419                        photoDic["full"] = subJson["urls"] ["full"].stringValue420                        photoDic["raw"] = subJson["urls"] ["raw"].stringValue421                        photoDic["id"] = subJson["id"].stringValue422                        photoDic["download"] = subJson["links"] ["download"].stringValue423                        photoDic["name"] = subJson["user"] ["name"].stringValue424                        photoDic["profileUrl"] = subJson["user"] ["links"]["html"].stringValue425                        tableViewController.photosArray.append(photoDic)426                    }427                    tableViewController.successfullyGetJsonData = true428                    tableViewController.tableView.reloadData()429                case .failure(let error):430                    tableViewController.refreshControl?.endRefreshing()431                    if let statusCode = response.response?.statusCode {432                        if statusCode == 403 {433                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ExceedRateLimit"), object: nil)434                            BaseNetworkRequest.reachLimitNotification(tableViewController)435                        } else if (statusCode == 401) {436                            BaseNetworkRequest.refreshAccessToken(tableViewController)437                        } else {438                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)439                            BaseNetworkRequest.somethingWrongNotification(tableViewController)440                        }441                    } else {442                        if (error.localizedDescription.contains("-1009") ||443                            error.localizedDescription.contains("-1001") ||444                            error.localizedDescription.contains("-1005")) {445                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "CanNotAccessInternet"), object: nil)446                            BaseNetworkRequest.noNetworkNotification(tableViewController)447                        } else {448                            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)449                            BaseNetworkRequest.somethingWrongNotification(tableViewController)450                        }451                    }452                }453            })454    }455    456    // MARK: help function457    class func failure(response:Alamofire.DataResponse<Any>, error:Error) {458        if let statusCode = response.response?.statusCode {459            if statusCode == 403 {460                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ExceedRateLimit"), object: nil)461            } else {462                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)463            }464        } else {465            if (error.localizedDescription.contains("-1009") ||466                error.localizedDescription.contains("-1001") ||467                error.localizedDescription.contains("-1005")) {468                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "CanNotAccessInternet"), object: nil)469            } else {470                NotificationCenter.default.post(name: NSNotification.Name(rawValue: "ErrorOccur"), object: nil)471            }472        }473    }474    class func reachLimitNotification(_ vc:BaseTableViewController) {475        isConnectedInternet = true476        reachLimit = true477        vc.somethingWrong = false478        if (vc.photosArray.count == 0) {479            vc.tableView.reloadData()480        } else {481            PKHUD.sharedHUD.contentView = PKHUDTextView(text: (NSLocalizedString("Server has reached it's limit", comment: "") + "\n" + NSLocalizedString("Have a break and come back later", comment: "")))482            PKHUD.sharedHUD.show()483            PKHUD.sharedHUD.hide(afterDelay: 2.0)484        }485    }486    487    class func noNetworkNotification(_ vc:BaseTableViewController) {488        isConnectedInternet = false489        if (vc.photosArray.count == 0) {490            vc.tableView.reloadData()491        }else {492            PKHUD.sharedHUD.contentView = PKHUDTextView(text: (NSLocalizedString("Cannot connect to Internet", comment: "") + "\n" + NSLocalizedString("Please try again", comment: "")))493            PKHUD.sharedHUD.show()494            PKHUD.sharedHUD.hide(afterDelay: 2.0)495        }496    }497    498    class func somethingWrongNotification(_ vc:BaseTableViewController) {499        isConnectedInternet = true500        vc.somethingWrong = true501        reachLimit = false502        if (vc.photosArray.count == 0) {503            vc.tableView.reloadData()504        } else {505            PKHUD.sharedHUD.contentView = PKHUDTextView(text: (NSLocalizedString("Oops, something went wrong", comment: "") + "\n" + NSLocalizedString("Please try again", comment: "")))506            PKHUD.sharedHUD.show()507            PKHUD.sharedHUD.hide(afterDelay: 2.0)508        }509    }510}...

...8import UIKit9class EventCoordinator: EventSearchTableViewDelegate, EventSearchViewControllerDelegate, EventDetailViewControllerDelegate {10    11    let navigationController: UINavigationController12    let tableViewController: EventSearchTableViewController13    var detailViewController: EventDetailViewController?14    let dataCoordinator = EventDataCoordinator()15    //TODO: add 'Enum' State Handling for better management and testibility16    17    // MARK: main methods18    19    init() {20        let storyboard = UIStoryboard.main()21        navigationController = storyboard.instantiate()22        tableViewController = storyboard.instantiate()23        tableViewController.searchController = EventSearchViewController(searchResultsController: nil)24        tableViewController.searchController?.searchDelegate = self25    }26    27    func start() {28        navigationController.pushViewController(tableViewController, animated: false)29        tableViewController.delegate = self30        tableViewController.searchController?.searchDelegate = self31        showNoResults()32    }33    34    // MARK: State Management35    36    func showNoResults() {37        guard tableViewController.events.count > 0 else { return }38        tableViewController.events = [EventViewModel]()39    }40    41    func loadResults(search: String) {42        UIApplication.shared.isNetworkActivityIndicatorVisible = true43        dataCoordinator.search(query: search).done { //TODO: searches should happen in a strict Queue to avoid messy async44            self.tableViewController.events = $045        }.ensure {46            UIApplication.shared.isNetworkActivityIndicatorVisible = false47        }.catch { _ in48            self.tableViewController.events = []49            self.tableViewController.showError(title: "Could not load search")50            //TODO: add title to strings file51        }52    }53    54    func showDetails(of event: EventViewModel) {55        let detailController:EventDetailViewController = UIStoryboard.main().instantiate()56        detailController.event = event57        detailController.delegate = self58        detailViewController = detailController59        navigationController.pushViewController(detailController, animated: true)60    }61    62    func updateFavorite(for event: EventViewModel) {63        guard let index = tableViewController.events.index(where: {event == $0}) else {64            fatalError("Must be valid Events Index")65        }66        event.isFavorite ?67            dataCoordinator.addFavorite(at: index) :68            dataCoordinator.removeFavorite(at: index)69        tableViewController.tableView.reloadData() //TODO: reload at index70    }71    72    // MARK: Delegates73    74    func eventTableViewDelegateDidSelectEvent(_ eventTableController: EventSearchTableViewController, event: EventViewModel) {75        showDetails(of: event)76    }77    78    func eventSearchViewControllerDidUpdateText(_ searchController: EventSearchViewController, text: String) {79        text.count > 0 ?80            loadResults(search: text) :81            showNoResults()82    }83    84    func eventDetailViewControllerDidTapFavorite(_ detailViewController: EventDetailViewController, event: EventViewModel) {85        updateFavorite(for: event)86    }87    88}...

...6//7import UIKit8class SideMainViewController: UIViewController {9    10    var tableViewController : MovieQuotesTableViewController{11        let navController = presentingViewController as! UINavigationController12        return navController.viewControllers.last as! MovieQuotesTableViewController13    }14    15    override func viewDidLoad() {16        super.viewDidLoad()17        18        // Do any additional setup after loading the view.19    }20    21    @IBAction func pressedEditProfile(_ sender: Any) {22        dismiss(animated: true)23        tableViewController.performSegue(withIdentifier: kShowProfilePageSegue, sender: tableViewController)24    }25    26    @IBAction func pressedShowAllQuotes(_ sender: Any) {...

1import UIKit2import SnapshotTesting3import XCTest4class TableViewController: UITableViewController {5    override func viewDidLoad() {6        super.viewDidLoad()7        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")8    }9    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {10    }11    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {12        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)13    }14}15class SnapshotTests: XCTestCase {16    func testSnapshot() {17        assertSnapshot(matching: TableViewController(), as: .image(on: .iPhoneX))18    }19}20import UIKit21import SnapshotTesting22import XCTest23class TableViewController: UITableViewController {24    override func viewDidLoad() {25        super.viewDidLoad()26        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")27    }28    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {29    }30    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {31        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)32    }33}34class SnapshotTests: XCTestCase {35    func testSnapshot() {36        assertSnapshot(matching: TableViewController(), as: .image(on: .iPhoneX))37    }38}39import UIKit40import SnapshotTesting41import XCTest42class TableViewController: UITableViewController {43    override func viewDidLoad() {44        super.viewDidLoad()45        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")46    }47    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {48    }49    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {50        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)51    }52}53class SnapshotTests: XCTestCase {54    func testSnapshot() {55        assertSnapshot(matching: TableViewController(), as: .image(on: .iPhoneX))56    }57}

1import UIKit2import SnapshotTesting3import XCTest4class TableViewController: UITableViewController {5    override func viewDidLoad() {6        super.viewDidLoad()7        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")8    }9    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {10    }11    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {12        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)13    }14}15class TableViewControllerTests: XCTestCase {16    func testTableViewController() {17        let tableViewController = TableViewController()18        assertSnapshot(matching: tableViewController, as: .image(on: .iPhoneX))19    }20}21import UIKit22import SnapshotTesting23import XCTest24class TableViewController: UITableViewController {25    override func viewDidLoad() {26        super.viewDidLoad()27        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")28    }29    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {30    }31    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {32        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)33    }34}35class TableViewControllerTests: XCTestCase {36    func testTableViewController() {37        let tableViewController = TableViewController()38        assertSnapshot(matching: tableViewController, as: .image(on: .iPhoneX))39    }40}41import UIKit42import SnapshotTesting43import XCTest44class TableViewController: UITableViewController {45    override func viewDidLoad() {46        super.viewDidLoad()47        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")48    }49    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {50    }51    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {52        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)53    }54}55class TableViewControllerTests: XCTestCase {56    func testTableViewController() {

1import UIKit2import SnapshotTesting3class TableViewController: UITableViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")7    }8    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {9    }10    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {11        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)12        cell.textLabel?.text = "Row \(indexPath.row)"13    }14}15import XCTest16import SnapshotTesting17class SnapshotTestCase: XCTestCase {18    func testTableViewController() {19        let tableViewController = TableViewController()20        tableViewController.loadViewIfNeeded()21        assertSnapshot(matching: tableViewController, as: .image(on: .iPhone8))22    }23}24We can also use the .image(precision: 1.0) format to take the snapshot of the view in the form of the image. In this case, we have to provide the precision of the image. In the above code, we have used the

1import SnapshotTesting2import XCTest3class TableViewController: UITableViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")7    }8    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {9    }10    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {11        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)12    }13}14class TableViewControllerTests: XCTestCase {15    func testTableView() {16        let vc = TableViewController()17        vc.view.frame = CGRect(x: 0, y: 0, width: 320, height: 480)18        assertSnapshot(matching: vc, as: .image)19    }20}

1import XCTest2import UIKit3import SnapshotTesting4class TableViewController: UITableViewController {5    override func viewDidLoad() {6        super.viewDidLoad()7        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")8    }9    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {10    }11    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {12        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)13    }14}15class ViewControllerTests: XCTestCase {16    func testTableViewController() {17        assertSnapshot(matching: TableViewController(), as: .image(on: .iPhoneX))18    }19}20import XCTest21import UIKit22import SnapshotTesting23class TableViewController: UITableViewController {24    override func viewDidLoad() {25        super.viewDidLoad()26        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")27    }28    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {29    }30    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {31        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)32    }33}34class ViewControllerTests: XCTestCase {35    func testTableViewController() {36        assertSnapshot(matching: TableViewController(), as: .image(on: .iPhoneX))37    }38}

1import XCTest2import SnapshotTesting3@testable import SwiftSnapshotTesting4class TableViewControllerTests: XCTestCase {5    func testTableViewController() {6        let vc = TableViewController()7        assertSnapshot(matching: vc, as: .image(on: .iPhoneSe))8    }9}10import UIKit11import XCTest12import SnapshotTesting13class TableViewController: UITableViewController {14    override func viewDidLoad() {15        super.viewDidLoad()16        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")17    }18    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {19    }20    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {21        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)22    }23}24import UIKit25class TableViewController: UITableViewController {26    override func viewDidLoad() {27        super.viewDidLoad()28        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")29    }30    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {31    }32    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {33        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)34    }35}36import XCTest37import SnapshotTesting38class TableViewControllerTests: XCTestCase {39    func testTableViewController() {40        let vc = TableViewController()41        assertSnapshot(matching: vc, as: .image(on: .iPhoneSe))42    }43}44import XCTest45import SnapshotTesting46@testable import SwiftSnapshotTesting47class TableViewControllerTests: XCTestCase {48    func testTableViewController() {49        let vc = TableViewController()50        assertSnapshot(matching: vc, as: .image(on: .iPhoneSe))51    }52}53import XCTest54import SnapshotTesting55@testable import SwiftSnapshotTesting

1import UIKit2import SnapshotTesting3class TableViewController: UITableViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")7    }8    override func numberOfSections(in tableView: UITableView) -> Int {9    }10    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {11    }12    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {13        let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)14    }15}16import UIKit17import SnapshotTesting18class ViewController: UIViewController {19    override func viewDidLoad() {20        super.viewDidLoad()21        let tableView = UITableView(frame: view.bounds, style: .plain)22        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")23        view.addSubview(tableView)24    }25}26extension ViewController: UITableViewDataSource {27    func numberOfSections(in tableView: UITableView) -> Int {28    }29    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {30    }31    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {32        let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)33    }34}35import UIKit36import SnapshotTesting37class ViewController: UIViewController {38    override func viewDidLoad() {39        super.viewDidLoad()40        let tableView = UITableView(frame: view.bounds, style: .plain)41        tableView.register(U

1import UIKit2import TableViewController3class ViewController: UIViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        let tableViewController = TableViewController()7        self.navigationController?.pushViewController(tableViewController, animated: true)8    }9}10import UIKit11import TableViewController12class TableViewController: UITableViewController {13    override func viewDidLoad() {14        super.viewDidLoad()15        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")16    }17    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {18    }19    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {20        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)21        cell.textLabel?.text = "\(indexPath.row)"22    }23}24import UIKit25import TableViewController26class TableViewController: UITableViewController {27    override func viewDidLoad() {28        super.viewDidLoad()29        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")30    }31    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {32    }33    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {34        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)35        cell.textLabel?.text = "\(indexPath.row)"36    }37}38import UIKit39import TableViewController40class TableViewController: UITableViewController {41    override func viewDidLoad() {42        super.viewDidLoad()43        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")44    }45    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {46    }47    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {48        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)49        cell.textLabel?.text = "\(indexPath.row)"50    }51}52import UIKit53import TableViewController54class TableViewController: UITableViewController {55    override func viewDidLoad() {56        super.viewDidLoad()

1import UIKit2import SnapshotTesting3class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {4    let tableView = UITableView()5    var dataSource = [String]()6    override func viewDidLoad() {7        super.viewDidLoad()8        tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellIdentifier)9        view.addSubview(tableView)10        tableView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true11        tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true12        tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true13        tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true14    }15    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {16    }17    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {18        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)19    }20}21import XCTest22@testable import SwiftSnapshotTesting23class SwiftSnapshotTestingTests: XCTestCase {24    func testSnapshot() {25        let viewController = ViewController()26        let window = UIWindow(frame: UIScreen.main.bounds)27        window.makeKeyAndVisible()28        assertSnapshot(matching: window, as: .image)29    }30}31import XCTest32@testable import SwiftSnapshotTesting33class SwiftSnapshotTestingTests: XCTestCase {34    func testSnapshot() {35        let viewController = ViewController()36        let window = UIWindow(frame: UIScreen.main.bounds)37        window.makeKeyAndVisible()38        assertSnapshot(matching: window, as: .image)39    }40}

1import TableViewController2import TableViewControllerSnapshotTests3import UIKit4import TableViewController5class TableViewController: UITableViewController {6    override func viewDidLoad() {7        super.viewDidLoad()8        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")9    }10    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {11    }12    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {13        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)14        cell.textLabel?.text = "\(indexPath.row)"15    }16}17import UIKit18import TableViewController19class TableViewController: UITableViewController {20    override func viewDidLoad() {21        super.viewDidLoad()

1import UIKit2import SnapshotTesting3class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {4    let tableView = UITableView()5    var dataSource = [String]()6    override func viewDidLoad() {7        super.viewDidLoad()8        tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellIdentifier)9        view.addSubview(tableView)10        tableView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true11        tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true12        tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true13        tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true14    }15    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {16    }17    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {18        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)19    }20}21import XCTest22@testable import SwiftSnapshotTesting23class SwiftSnapshotTestingTests: XCTestCase {24    func testSnapshot() {25        let viewController = ViewController()26        let window = UIWindow(frame: UIScreen.main.bounds)27        window.makeKeyAndVisible()28        assertSnapshot(matching: window, as: .image)29    }30}31import XCTest32@testable import SwiftSnapshotTesting33class SwiftSnapshotTestingTests: XCTestCase {34    func testSnapshot() {35        let viewController = ViewController()36        let window = UIWindow(frame: UIScreen.main.bounds)37        window.makeKeyAndVisible()38        assertSnapshot(matching: window, as: .image)39    }40}

1import UIKit2import SnapshotTesting3class TableViewController: UITableViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")7    }8    override func numberOfSections(in tableView: UITableView) -> Int {9    }10    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {11    }12    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {13        let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)14    }15}16import UIKit17import SnapshotTesting18class ViewController: UIViewController {19    override func viewDidLoad() {20        super.viewDidLoad()21        let tableView = UITableView(frame: view.bounds, style: .plain)22        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")23        view.addSubview(tableView)24    }25}26extension ViewController: UITableViewDataSource {27    func numberOfSections(in tableView: UITableView) -> Int {28    }29    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {30    }31    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {32        let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath)33    }34}35import UIKit36import SnapshotTesting37class ViewController: UIViewController {38    override func viewDidLoad() {39        super.viewDidLoad()40        let tableView = UITableView(frame: view.bounds, style: .plain)41        tableView.register(U

1import UIKit2import SnapshotTesting3class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {4    let tableView = UITableView()5    var dataSource = [String]()6    override func viewDidLoad() {7        super.viewDidLoad()8        tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellIdentifier)9        view.addSubview(tableView)10        tableView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true11        tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true12        tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true13        tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true14    }15    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {16    }17    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {18        let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)19    }20}21import XCTest22@testable import SwiftSnapshotTesting23class SwiftSnapshotTestingTests: XCTestCase {24    func testSnapshot() {25        let viewController = ViewController()26        let window = UIWindow(frame: UIScreen.main.bounds)27        window.makeKeyAndVisible()28        assertSnapshot(matching: window, as: .image)29    }30}31import XCTest32@testable import SwiftSnapshotTesting33class SwiftSnapshotTestingTests: XCTestCase {34    func testSnapshot() {35        let viewController = ViewController()36        let window = UIWindow(frame: UIScreen.main.bounds)37        window.makeKeyAndVisible()38        assertSnapshot(matching: window, as: .image)39    }40}