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How to use viewDidLoad method of CancellingWKWebViewNavigationDelegate class

Best Swift-snapshot-testing code snippet using CancellingWKWebViewNavigationDelegate.viewDidLoad

SnapshotTestingTests.swift

Source:SnapshotTestingTests.swift

...316  }317  func testTableViewController() {318    #if os(iOS)319    class TableViewController: UITableViewController {320      override func viewDidLoad() {321        super.viewDidLoad()322        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")323      }324      override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {325        return 10326      }327      override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {328        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)329        cell.textLabel?.text = "\(indexPath.row)"330        return cell331      }332    }333    let tableViewController = TableViewController()334    assertSnapshot(matching: tableViewController, as: .image(on: .iPhoneSe))335    #endif336  }337  func testAssertMultipleSnapshot() {338    #if os(iOS)339    class TableViewController: UITableViewController {340      override func viewDidLoad() {341        super.viewDidLoad()342        self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")343      }344      override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {345        return 10346      }347      override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {348        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)349        cell.textLabel?.text = "\(indexPath.row)"350        return cell351      }352    }353    let tableViewController = TableViewController()354    assertSnapshots(matching: tableViewController, as: ["iPhoneSE-image" : .image(on: .iPhoneSe), "iPad-image" : .image(on: .iPadMini)])355    assertSnapshots(matching: tableViewController, as: [.image(on: .iPhoneX), .image(on: .iPhoneXsMax)])356    #endif357  }358  func testTraits() {359    #if os(iOS) || os(tvOS)360    if #available(iOS 11.0, tvOS 11.0, *) {361      class MyViewController: UIViewController {362        let topLabel = UILabel()363        let leadingLabel = UILabel()364        let trailingLabel = UILabel()365        let bottomLabel = UILabel()366        override func viewDidLoad() {367          super.viewDidLoad()368          self.navigationItem.leftBarButtonItem = .init(barButtonSystemItem: .add, target: nil, action: nil)369          self.view.backgroundColor = .white370          self.topLabel.text = "What's"371          self.leadingLabel.text = "the"372          self.trailingLabel.text = "point"373          self.bottomLabel.text = "?"374          self.topLabel.translatesAutoresizingMaskIntoConstraints = false375          self.leadingLabel.translatesAutoresizingMaskIntoConstraints = false376          self.trailingLabel.translatesAutoresizingMaskIntoConstraints = false377          self.bottomLabel.translatesAutoresizingMaskIntoConstraints = false378          self.view.addSubview(self.topLabel)379          self.view.addSubview(self.leadingLabel)380          self.view.addSubview(self.trailingLabel)381          self.view.addSubview(self.bottomLabel)382          NSLayoutConstraint.activate([383            self.topLabel.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor),384            self.topLabel.centerXAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),385            self.leadingLabel.leadingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.leadingAnchor),386            self.leadingLabel.trailingAnchor.constraint(lessThanOrEqualTo: self.view.safeAreaLayoutGuide.centerXAnchor),387//            self.leadingLabel.trailingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),388            self.leadingLabel.centerYAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerYAnchor),389            self.trailingLabel.leadingAnchor.constraint(greaterThanOrEqualTo: self.view.safeAreaLayoutGuide.centerXAnchor),390            self.trailingLabel.trailingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.trailingAnchor),391            self.trailingLabel.centerYAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerYAnchor),392            self.bottomLabel.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor),393            self.bottomLabel.centerXAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),394            ])395        }396        override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {397          super.traitCollectionDidChange(previousTraitCollection)398          self.topLabel.font = .preferredFont(forTextStyle: .headline, compatibleWith: self.traitCollection)399          self.leadingLabel.font = .preferredFont(forTextStyle: .body, compatibleWith: self.traitCollection)400          self.trailingLabel.font = .preferredFont(forTextStyle: .body, compatibleWith: self.traitCollection)401          self.bottomLabel.font = .preferredFont(forTextStyle: .subheadline, compatibleWith: self.traitCollection)402          self.view.setNeedsUpdateConstraints()403          self.view.updateConstraintsIfNeeded()404        }405      }406      let viewController = MyViewController()407      #if os(iOS)408      assertSnapshot(matching: viewController, as: .image(on: .iPhoneSe), named: "iphone-se")409      assertSnapshot(matching: viewController, as: .image(on: .iPhone8), named: "iphone-8")410      assertSnapshot(matching: viewController, as: .image(on: .iPhone8Plus), named: "iphone-8-plus")411      assertSnapshot(matching: viewController, as: .image(on: .iPhoneX), named: "iphone-x")412      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXr), named: "iphone-xr")413      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXsMax), named: "iphone-xs-max")414      assertSnapshot(matching: viewController, as: .image(on: .iPadMini), named: "ipad-mini")415      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7), named: "ipad-9-7")416      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2), named: "ipad-10-2")417      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5), named: "ipad-pro-10-5")418      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11), named: "ipad-pro-11")419      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9), named: "ipad-pro-12-9")420      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhoneSe), named: "iphone-se")421      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhone8), named: "iphone-8")422      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhone8Plus), named: "iphone-8-plus")423      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhoneX), named: "iphone-x")424      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhoneXr), named: "iphone-xr")425      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPhoneXsMax), named: "iphone-xs-max")426      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPadMini), named: "ipad-mini")427      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPad9_7), named: "ipad-9-7")428      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPad10_2), named: "ipad-10-2")429      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPadPro10_5), named: "ipad-pro-10-5")430      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPadPro11), named: "ipad-pro-11")431      assertSnapshot(matching: viewController, as: .recursiveDescription(on: .iPadPro12_9), named: "ipad-pro-12-9")432      assertSnapshot(matching: viewController, as: .image(on: .iPhoneSe(.portrait)), named: "iphone-se")433      assertSnapshot(matching: viewController, as: .image(on: .iPhone8(.portrait)), named: "iphone-8")434      assertSnapshot(matching: viewController, as: .image(on: .iPhone8Plus(.portrait)), named: "iphone-8-plus")435      assertSnapshot(matching: viewController, as: .image(on: .iPhoneX(.portrait)), named: "iphone-x")436      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXr(.portrait)), named: "iphone-xr")437      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXsMax(.portrait)), named: "iphone-xs-max")438      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.landscape)), named: "ipad-mini")439      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.landscape)), named: "ipad-9-7")440      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.landscape)), named: "ipad-10-2")441      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.landscape)), named: "ipad-pro-10-5")442      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.landscape)), named: "ipad-pro-11")443      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.landscape)), named: "ipad-pro-12-9")444      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.landscape(splitView: .oneThird))), named: "ipad-mini-33-split-landscape")445      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.landscape(splitView: .oneHalf))), named: "ipad-mini-50-split-landscape")446      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.landscape(splitView: .twoThirds))), named: "ipad-mini-66-split-landscape")447      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.portrait(splitView: .oneThird))), named: "ipad-mini-33-split-portrait")448      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.portrait(splitView: .twoThirds))), named: "ipad-mini-66-split-portrait")449      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.landscape(splitView: .oneThird))), named: "ipad-9-7-33-split-landscape")450      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.landscape(splitView: .oneHalf))), named: "ipad-9-7-50-split-landscape")451      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.landscape(splitView: .twoThirds))), named: "ipad-9-7-66-split-landscape")452      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.portrait(splitView: .oneThird))), named: "ipad-9-7-33-split-portrait")453      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.portrait(splitView: .twoThirds))), named: "ipad-9-7-66-split-portrait")454      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.landscape(splitView: .oneThird))), named: "ipad-10-2-split-landscape")455      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.landscape(splitView: .oneHalf))), named: "ipad-10-2-50-split-landscape")456      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.landscape(splitView: .twoThirds))), named: "ipad-10-2-66-split-landscape")457      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.portrait(splitView: .oneThird))), named: "ipad-10-2-33-split-portrait")458      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.portrait(splitView: .twoThirds))), named: "ipad-10-2-66-split-portrait")459      460      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.landscape(splitView: .oneThird))), named: "ipad-pro-10inch-33-split-landscape")461      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.landscape(splitView: .oneHalf))), named: "ipad-pro-10inch-50-split-landscape")462      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.landscape(splitView: .twoThirds))), named: "ipad-pro-10inch-66-split-landscape")463      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.portrait(splitView: .oneThird))), named: "ipad-pro-10inch-33-split-portrait")464      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.portrait(splitView: .twoThirds))), named: "ipad-pro-10inch-66-split-portrait")465      466      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.landscape(splitView: .oneThird))), named: "ipad-pro-11inch-33-split-landscape")467      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.landscape(splitView: .oneHalf))), named: "ipad-pro-11inch-50-split-landscape")468      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.landscape(splitView: .twoThirds))), named: "ipad-pro-11inch-66-split-landscape")469      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.portrait(splitView: .oneThird))), named: "ipad-pro-11inch-33-split-portrait")470      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.portrait(splitView: .twoThirds))), named: "ipad-pro-11inch-66-split-portrait")471      472      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.landscape(splitView: .oneThird))), named: "ipad-pro-12inch-33-split-landscape")473      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.landscape(splitView: .oneHalf))), named: "ipad-pro-12inch-50-split-landscape")474      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.landscape(splitView: .twoThirds))), named: "ipad-pro-12inch-66-split-landscape")475      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.portrait(splitView: .oneThird))), named: "ipad-pro-12inch-33-split-portrait")476      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.portrait(splitView: .twoThirds))), named: "ipad-pro-12inch-66-split-portrait")477      478      assertSnapshot(479        matching: viewController, as: .image(on: .iPhoneSe(.landscape)), named: "iphone-se-alternative")480      assertSnapshot(481        matching: viewController, as: .image(on: .iPhone8(.landscape)), named: "iphone-8-alternative")482      assertSnapshot(483        matching: viewController, as: .image(on: .iPhone8Plus(.landscape)), named: "iphone-8-plus-alternative")484      assertSnapshot(485        matching: viewController, as: .image(on: .iPhoneX(.landscape)), named: "iphone-x-alternative")486      assertSnapshot(487        matching: viewController, as: .image(on: .iPhoneXr(.landscape)), named: "iphone-xr-alternative")488      assertSnapshot(489        matching: viewController, as: .image(on: .iPhoneXsMax(.landscape)), named: "iphone-xs-max-alternative")490      assertSnapshot(491        matching: viewController, as: .image(on: .iPadMini(.portrait)), named: "ipad-mini-alternative")492      assertSnapshot(493        matching: viewController, as: .image(on: .iPad9_7(.portrait)), named: "ipad-9-7-alternative")494      assertSnapshot(495        matching: viewController, as: .image(on: .iPad10_2(.portrait)), named: "ipad-10-2-alternative")496      assertSnapshot(497        matching: viewController, as: .image(on: .iPadPro10_5(.portrait)), named: "ipad-pro-10-5-alternative")498      assertSnapshot(499        matching: viewController, as: .image(on: .iPadPro11(.portrait)), named: "ipad-pro-11-alternative")500      assertSnapshot(501        matching: viewController, as: .image(on: .iPadPro12_9(.portrait)), named: "ipad-pro-12-9-alternative")502      allContentSizes.forEach { name, contentSize in503          assertSnapshot(504            matching: viewController,505            as: .image(on: .iPhoneSe, traits: .init(preferredContentSizeCategory: contentSize)),506            named: "iphone-se-\(name)"507          )508      }509      #elseif os(tvOS)510      assertSnapshot(511        matching: viewController, as: .image(on: .tv), named: "tv")512      assertSnapshot(513        matching: viewController, as: .image(on: .tv4K), named: "tv4k")514      #endif515    }516    #endif517  }518  func testTraitsEmbeddedInTabNavigation() {519    #if os(iOS)520    if #available(iOS 11.0, *) {521      class MyViewController: UIViewController {522        let topLabel = UILabel()523        let leadingLabel = UILabel()524        let trailingLabel = UILabel()525        let bottomLabel = UILabel()526        override func viewDidLoad() {527          super.viewDidLoad()528          self.navigationItem.leftBarButtonItem = .init(barButtonSystemItem: .add, target: nil, action: nil)529          self.view.backgroundColor = .white530          self.topLabel.text = "What's"531          self.leadingLabel.text = "the"532          self.trailingLabel.text = "point"533          self.bottomLabel.text = "?"534          self.topLabel.translatesAutoresizingMaskIntoConstraints = false535          self.leadingLabel.translatesAutoresizingMaskIntoConstraints = false536          self.trailingLabel.translatesAutoresizingMaskIntoConstraints = false537          self.bottomLabel.translatesAutoresizingMaskIntoConstraints = false538          self.view.addSubview(self.topLabel)539          self.view.addSubview(self.leadingLabel)540          self.view.addSubview(self.trailingLabel)541          self.view.addSubview(self.bottomLabel)542          NSLayoutConstraint.activate([543            self.topLabel.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor),544            self.topLabel.centerXAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),545            self.leadingLabel.leadingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.leadingAnchor),546            self.leadingLabel.trailingAnchor.constraint(lessThanOrEqualTo: self.view.safeAreaLayoutGuide.centerXAnchor),547//            self.leadingLabel.trailingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),548            self.leadingLabel.centerYAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerYAnchor),549            self.trailingLabel.leadingAnchor.constraint(greaterThanOrEqualTo: self.view.safeAreaLayoutGuide.centerXAnchor),550            self.trailingLabel.trailingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.trailingAnchor),551            self.trailingLabel.centerYAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerYAnchor),552            self.bottomLabel.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor),553            self.bottomLabel.centerXAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.centerXAnchor),554            ])555        }556        override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {557          super.traitCollectionDidChange(previousTraitCollection)558          self.topLabel.font = .preferredFont(forTextStyle: .headline, compatibleWith: self.traitCollection)559          self.leadingLabel.font = .preferredFont(forTextStyle: .body, compatibleWith: self.traitCollection)560          self.trailingLabel.font = .preferredFont(forTextStyle: .body, compatibleWith: self.traitCollection)561          self.bottomLabel.font = .preferredFont(forTextStyle: .subheadline, compatibleWith: self.traitCollection)562          self.view.setNeedsUpdateConstraints()563          self.view.updateConstraintsIfNeeded()564        }565      }566      let myViewController = MyViewController()567      let navController = UINavigationController(rootViewController: myViewController)568      let viewController = UITabBarController()569      viewController.setViewControllers([navController], animated: false)570      assertSnapshot(matching: viewController, as: .image(on: .iPhoneSe), named: "iphone-se")571      assertSnapshot(matching: viewController, as: .image(on: .iPhone8), named: "iphone-8")572      assertSnapshot(matching: viewController, as: .image(on: .iPhone8Plus), named: "iphone-8-plus")573      assertSnapshot(matching: viewController, as: .image(on: .iPhoneX), named: "iphone-x")574      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXr), named: "iphone-xr")575      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXsMax), named: "iphone-xs-max")576      assertSnapshot(matching: viewController, as: .image(on: .iPadMini), named: "ipad-mini")577      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7), named: "ipad-9-7")578      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2), named: "ipad-10-2")579      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5), named: "ipad-pro-10-5")580      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11), named: "ipad-pro-11")581      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9), named: "ipad-pro-12-9")582      assertSnapshot(matching: viewController, as: .image(on: .iPhoneSe(.portrait)), named: "iphone-se")583      assertSnapshot(matching: viewController, as: .image(on: .iPhone8(.portrait)), named: "iphone-8")584      assertSnapshot(matching: viewController, as: .image(on: .iPhone8Plus(.portrait)), named: "iphone-8-plus")585      assertSnapshot(matching: viewController, as: .image(on: .iPhoneX(.portrait)), named: "iphone-x")586      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXr(.portrait)), named: "iphone-xr")587      assertSnapshot(matching: viewController, as: .image(on: .iPhoneXsMax(.portrait)), named: "iphone-xs-max")588      assertSnapshot(matching: viewController, as: .image(on: .iPadMini(.landscape)), named: "ipad-mini")589      assertSnapshot(matching: viewController, as: .image(on: .iPad9_7(.landscape)), named: "ipad-9-7")590      assertSnapshot(matching: viewController, as: .image(on: .iPad10_2(.landscape)), named: "ipad-10-2")591      assertSnapshot(matching: viewController, as: .image(on: .iPadPro10_5(.landscape)), named: "ipad-pro-10-5")592      assertSnapshot(matching: viewController, as: .image(on: .iPadPro11(.landscape)), named: "ipad-pro-11")593      assertSnapshot(matching: viewController, as: .image(on: .iPadPro12_9(.landscape)), named: "ipad-pro-12-9")594      assertSnapshot(595        matching: viewController, as: .image(on: .iPhoneSe(.landscape)), named: "iphone-se-alternative")596      assertSnapshot(597        matching: viewController, as: .image(on: .iPhone8(.landscape)), named: "iphone-8-alternative")598      assertSnapshot(599        matching: viewController, as: .image(on: .iPhone8Plus(.landscape)), named: "iphone-8-plus-alternative")600      assertSnapshot(601        matching: viewController, as: .image(on: .iPhoneX(.landscape)), named: "iphone-x-alternative")602      assertSnapshot(603        matching: viewController, as: .image(on: .iPhoneXr(.landscape)), named: "iphone-xr-alternative")604      assertSnapshot(605        matching: viewController, as: .image(on: .iPhoneXsMax(.landscape)), named: "iphone-xs-max-alternative")606      assertSnapshot(607        matching: viewController, as: .image(on: .iPadMini(.portrait)), named: "ipad-mini-alternative")608      assertSnapshot(609        matching: viewController, as: .image(on: .iPad9_7(.portrait)), named: "ipad-9-7-alternative")610      assertSnapshot(611        matching: viewController, as: .image(on: .iPad10_2(.portrait)), named: "ipad-10-2-alternative")612      assertSnapshot(613        matching: viewController, as: .image(on: .iPadPro10_5(.portrait)), named: "ipad-pro-10-5-alternative")614      assertSnapshot(615        matching: viewController, as: .image(on: .iPadPro11(.portrait)), named: "ipad-pro-11-alternative")616      assertSnapshot(617        matching: viewController, as: .image(on: .iPadPro12_9(.portrait)), named: "ipad-pro-12-9-alternative")618    }619    #endif620  }621  func testCollectionViewsWithMultipleScreenSizes() {622    #if os(iOS)623    final class CollectionViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {624      let flowLayout: UICollectionViewFlowLayout = {625        let layout = UICollectionViewFlowLayout()626        layout.scrollDirection = .horizontal627        layout.minimumLineSpacing = 20628        return layout629      }()630      lazy var collectionView = UICollectionView(frame: .zero, collectionViewLayout: flowLayout)631      override func viewDidLoad() {632        super.viewDidLoad()633        view.backgroundColor = .white634        view.addSubview(collectionView)635        collectionView.backgroundColor = .white636        collectionView.dataSource = self637        collectionView.delegate = self638        collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")639        collectionView.translatesAutoresizingMaskIntoConstraints = false640        NSLayoutConstraint.activate([641          collectionView.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor),642          collectionView.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor),643          collectionView.trailingAnchor.constraint(equalTo: view.layoutMarginsGuide.trailingAnchor),644          collectionView.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)645        ])646        collectionView.reloadData()647      }648      override func viewDidLayoutSubviews() {649        super.viewDidLayoutSubviews()650        collectionView.collectionViewLayout.invalidateLayout()651      }652      override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {653        super.traitCollectionDidChange(previousTraitCollection)654        collectionView.collectionViewLayout.invalidateLayout()655      }656      func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {657        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath)658        cell.contentView.backgroundColor = .orange659        return cell660      }661      func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {662        return 20663      }664      func collectionView(665        _ collectionView: UICollectionView,666        layout collectionViewLayout: UICollectionViewLayout,667        sizeForItemAt indexPath: IndexPath668        ) -> CGSize {669        return CGSize(670          width: min(collectionView.frame.width - 50, 300),671          height: collectionView.frame.height672        )673      }674    }675    let viewController = CollectionViewController()676    assertSnapshots(matching: viewController, as: [677      "ipad": .image(on: .iPadPro12_9),678      "iphoneSe": .image(on: .iPhoneSe),679      "iphone8": .image(on: .iPhone8),680      "iphoneMax": .image(on: .iPhoneXsMax)681    ])682    #endif683  }684  func testTraitsWithView() {685    #if os(iOS)686    if #available(iOS 11.0, *) {687      let label = UILabel()688      label.font = .preferredFont(forTextStyle: .title1)689      label.adjustsFontForContentSizeCategory = true690      label.text = "What's the point?"691      allContentSizes.forEach { name, contentSize in692        assertSnapshot(693          matching: label,694          as: .image(traits: .init(preferredContentSizeCategory: contentSize)),695          named: "label-\(name)"696        )697      }698    }699    #endif700  }701  func testTraitsWithViewController() {702    #if os(iOS)703    let label = UILabel()704    label.font = .preferredFont(forTextStyle: .title1)705    label.adjustsFontForContentSizeCategory = true706    label.text = "What's the point?"707    let viewController = UIViewController()708    viewController.view.addSubview(label)709    label.translatesAutoresizingMaskIntoConstraints = false710    NSLayoutConstraint.activate([711      label.leadingAnchor.constraint(equalTo: viewController.view.layoutMarginsGuide.leadingAnchor),712      label.topAnchor.constraint(equalTo: viewController.view.layoutMarginsGuide.topAnchor),713      label.trailingAnchor.constraint(equalTo: viewController.view.layoutMarginsGuide.trailingAnchor)714    ])715    allContentSizes.forEach { name, contentSize in716      assertSnapshot(717        matching: viewController,718        as: .recursiveDescription(on: .iPhoneSe, traits: .init(preferredContentSizeCategory: contentSize)),719        named: "label-\(name)"720      )721    }722    #endif723  }724  func testUIBezierPath() {725    #if os(iOS) || os(tvOS)726    let path = UIBezierPath.heart727    let osName: String728    #if os(iOS)729    osName = "iOS"730    #elseif os(tvOS)731    osName = "tvOS"732    #endif733    if !ProcessInfo.processInfo.environment.keys.contains("GITHUB_WORKFLOW") {734      assertSnapshot(matching: path, as: .image, named: osName)735    }736    if #available(iOS 11.0, tvOS 11.0, *) {737      assertSnapshot(matching: path, as: .elementsDescription, named: osName)738    }739    #endif740  }741  func testUIView() {742    #if os(iOS)743    let view = UIButton(type: .contactAdd)744    assertSnapshot(matching: view, as: .image)745    assertSnapshot(matching: view, as: .recursiveDescription)746    #endif747  }748  func testUIViewControllerLifeCycle() {749    #if os(iOS)750    class ViewController: UIViewController {751      let viewDidLoadExpectation: XCTestExpectation752      let viewWillAppearExpectation: XCTestExpectation753      let viewDidAppearExpectation: XCTestExpectation754      let viewWillDisappearExpectation: XCTestExpectation755      let viewDidDisappearExpectation: XCTestExpectation756      init(viewDidLoadExpectation: XCTestExpectation,757           viewWillAppearExpectation: XCTestExpectation,758           viewDidAppearExpectation: XCTestExpectation,759           viewWillDisappearExpectation: XCTestExpectation,760           viewDidDisappearExpectation: XCTestExpectation){761        self.viewDidLoadExpectation = viewDidLoadExpectation762        self.viewWillAppearExpectation = viewWillAppearExpectation763        self.viewDidAppearExpectation = viewDidAppearExpectation764        self.viewWillDisappearExpectation = viewWillDisappearExpectation765        self.viewDidDisappearExpectation = viewDidDisappearExpectation766        super.init(nibName: nil, bundle: nil)767      }768      required init?(coder: NSCoder) {769        fatalError("init(coder:) has not been implemented")770      }771      override func viewDidLoad() {772        super.viewDidLoad()773        viewDidLoadExpectation.fulfill()774      }775      override func viewWillAppear(_ animated: Bool) {776        super.viewWillAppear(animated)777        viewWillAppearExpectation.fulfill()778      }779      override func viewDidAppear(_ animated: Bool) {780        super.viewDidAppear(animated)781        viewDidAppearExpectation.fulfill()782      }783      override func viewWillDisappear(_ animated: Bool) {784        super.viewWillDisappear(animated)785        viewWillDisappearExpectation.fulfill()786      }787      override func viewDidDisappear(_ animated: Bool) {788        super.viewDidDisappear(animated)789        viewDidDisappearExpectation.fulfill()790      }791    }792    let viewDidLoadExpectation = expectation(description: "viewDidLoad")793    let viewWillAppearExpectation = expectation(description: "viewWillAppear")794    let viewDidAppearExpectation = expectation(description: "viewDidAppear")795    let viewWillDisappearExpectation = expectation(description: "viewWillDisappear")796    let viewDidDisappearExpectation = expectation(description: "viewDidDisappear")797    viewWillAppearExpectation.expectedFulfillmentCount = 4798    viewDidAppearExpectation.expectedFulfillmentCount = 4799    viewWillDisappearExpectation.expectedFulfillmentCount = 4800    viewDidDisappearExpectation.expectedFulfillmentCount = 4801    let viewController = ViewController(802      viewDidLoadExpectation: viewDidLoadExpectation,803      viewWillAppearExpectation: viewWillAppearExpectation,804      viewDidAppearExpectation: viewDidAppearExpectation,805      viewWillDisappearExpectation: viewWillDisappearExpectation,806      viewDidDisappearExpectation: viewDidDisappearExpectation807    )808    assertSnapshot(matching: viewController, as: .image)809    assertSnapshot(matching: viewController, as: .image)810    wait(for: [811      viewDidLoadExpectation,812      viewWillAppearExpectation,813      viewDidAppearExpectation,814      viewWillDisappearExpectation,815      viewDidDisappearExpectation,816    ], timeout: 1.0, enforceOrder: true)817    #endif818  }819  func testCALayer() {820    #if os(iOS)821    let layer = CALayer()822    layer.frame = CGRect(x: 0, y: 0, width: 100, height: 100)823    layer.backgroundColor = UIColor.red.cgColor824    layer.borderWidth = 4.0825    layer.borderColor = UIColor.black.cgColor...

SnapshotKitTests.swift

Source:SnapshotKitTests.swift

...348                layout.minimumLineSpacing = 20349                return layout350            }()351            lazy var collectionView = UICollectionView(frame: .zero, collectionViewLayout: flowLayout)352            override func viewDidLoad() {353                super.viewDidLoad()354                view.backgroundColor = .white355                view.addSubview(collectionView)356                collectionView.backgroundColor = .white357                collectionView.dataSource = self358                collectionView.delegate = self359                collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")360                collectionView.translatesAutoresizingMaskIntoConstraints = false361                NSLayoutConstraint.activate([362                    collectionView.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor),363                    collectionView.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor),364                    collectionView.trailingAnchor.constraint(equalTo: view.layoutMarginsGuide.trailingAnchor),365                    collectionView.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor)366                ])367                collectionView.reloadData()368            }369            override func viewDidLayoutSubviews() {370                super.viewDidLayoutSubviews()371                collectionView.collectionViewLayout.invalidateLayout()372            }373            override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {374                super.traitCollectionDidChange(previousTraitCollection)375                collectionView.collectionViewLayout.invalidateLayout()376            }377            func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {378                let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath)379                cell.contentView.backgroundColor = .orange380                return cell381            }382            func collectionView(_: UICollectionView, numberOfItemsInSection _: Int) -> Int {383                20384            }385            func collectionView(386                _ collectionView: UICollectionView,387                layout _: UICollectionViewLayout,388                sizeForItemAt _: IndexPath389            ) -> CGSize {390                CGSize(391                    width: min(collectionView.frame.width - 50, 300),392                    height: collectionView.frame.height393                )394            }395        }396        let viewController = CollectionViewController()397        assertSnapshots(matching: viewController, as: [398            "ipad": .image(on: .iPadPro12_9),399            "iphoneSe": .image(on: .iPhoneSe),400            "iphone8": .image(on: .iPhone8),401            "iphoneMax": .image(on: .iPhoneXsMax)402        ])403    }404    func testUIView() {405        let view = UIView()406        view.frame = .init(origin: .zero, size: .init(width: 20, height: 20))407        view.backgroundColor = .cyan408        view.layer.cornerRadius = 10409        assertSnapshot(matching: view, as: .image)410        assertSnapshot(matching: view, as: .recursiveDescription)411    }412    func testUIViewController() {413        let view = UIView()414        view.backgroundColor = .cyan415        view.layer.cornerRadius = 10416        view.translatesAutoresizingMaskIntoConstraints = false417        let viewController = UIViewController()418        viewController.view.addSubview(view)419        NSLayoutConstraint.activate([420            view.topAnchor.constraint(equalTo: viewController.view.topAnchor),421            view.bottomAnchor.constraint(equalTo: viewController.view.bottomAnchor),422            view.leftAnchor.constraint(equalTo: viewController.view.leftAnchor),423            view.rightAnchor.constraint(equalTo: viewController.view.rightAnchor)424        ])425        assertSnapshot(matching: viewController, as: .image(size: .init(width: 100, height: 100)))426    }427    func testUIViewControllerLifeCycle() {428        class ViewController: UIViewController {429            let viewDidLoadExpectation: XCTestExpectation430            let viewWillAppearExpectation: XCTestExpectation431            let viewDidAppearExpectation: XCTestExpectation432            let viewWillDisappearExpectation: XCTestExpectation433            let viewDidDisappearExpectation: XCTestExpectation434            init(435                viewDidLoadExpectation: XCTestExpectation,436                viewWillAppearExpectation: XCTestExpectation,437                viewDidAppearExpectation: XCTestExpectation,438                viewWillDisappearExpectation: XCTestExpectation,439                viewDidDisappearExpectation: XCTestExpectation440            ) {441                self.viewDidLoadExpectation = viewDidLoadExpectation442                self.viewWillAppearExpectation = viewWillAppearExpectation443                self.viewDidAppearExpectation = viewDidAppearExpectation444                self.viewWillDisappearExpectation = viewWillDisappearExpectation445                self.viewDidDisappearExpectation = viewDidDisappearExpectation446                super.init(nibName: nil, bundle: nil)447            }448            @available(*, unavailable)449            required init?(coder _: NSCoder) {450                fatalError("init(coder:) has not been implemented")451            }452            override func viewDidLoad() {453                super.viewDidLoad()454                viewDidLoadExpectation.fulfill()455            }456            override func viewWillAppear(_ animated: Bool) {457                super.viewWillAppear(animated)458                viewWillAppearExpectation.fulfill()459            }460            override func viewDidAppear(_ animated: Bool) {461                super.viewDidAppear(animated)462                viewDidAppearExpectation.fulfill()463            }464            override func viewWillDisappear(_ animated: Bool) {465                super.viewWillDisappear(animated)466                viewWillDisappearExpectation.fulfill()467            }468            override func viewDidDisappear(_ animated: Bool) {469                super.viewDidDisappear(animated)470                viewDidDisappearExpectation.fulfill()471            }472        }473        let viewDidLoadExpectation = expectation(description: "viewDidLoad")474        let viewWillAppearExpectation = expectation(description: "viewWillAppear")475        let viewDidAppearExpectation = expectation(description: "viewDidAppear")476        let viewWillDisappearExpectation = expectation(description: "viewWillDisappear")477        let viewDidDisappearExpectation = expectation(description: "viewDidDisappear")478        viewWillAppearExpectation.expectedFulfillmentCount = 2479        viewDidAppearExpectation.expectedFulfillmentCount = 2480        viewWillDisappearExpectation.expectedFulfillmentCount = 2481        viewDidDisappearExpectation.expectedFulfillmentCount = 2482        let viewController = ViewController(483            viewDidLoadExpectation: viewDidLoadExpectation,484            viewWillAppearExpectation: viewWillAppearExpectation,485            viewDidAppearExpectation: viewDidAppearExpectation,486            viewWillDisappearExpectation: viewWillDisappearExpectation,487            viewDidDisappearExpectation: viewDidDisappearExpectation488        )489        assertSnapshot(matching: viewController, as: .image)490        assertSnapshot(matching: viewController, as: .image)491        wait(492            for: [493                viewDidLoadExpectation,494                viewWillAppearExpectation,495                viewDidAppearExpectation,496                viewWillDisappearExpectation,497                viewDidDisappearExpectation498            ],499            timeout: 1,500            enforceOrder: true501        )502    }503    func testCALayer() {504        let layer = CALayer()505        layer.frame = CGRect(x: 0, y: 0, width: 100, height: 100)506        layer.backgroundColor = UIColor.red.cgColor507        layer.borderWidth = 4.0508        layer.borderColor = UIColor.black.cgColor509        assertSnapshot(matching: layer, as: .image)510    }511    func testCALayerWithGradient() {512        let baseLayer = CALayer()513        baseLayer.frame = CGRect(x: 0, y: 0, width: 100, height: 100)514        let gradientLayer = CAGradientLayer()515        gradientLayer.colors = [UIColor.red.cgColor, UIColor.yellow.cgColor]516        gradientLayer.frame = baseLayer.frame517        baseLayer.addSublayer(gradientLayer)518        assertSnapshot(matching: baseLayer, as: .image(subpixelThreshold: 1))519    }520    func testViewControllerHierarchy() {521        let page = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal)522        page.setViewControllers([UIViewController()], direction: .forward, animated: false)523        let tab = UITabBarController()524        tab.viewControllers = [525            UINavigationController(rootViewController: page),526            UINavigationController(rootViewController: UIViewController()),527            UINavigationController(rootViewController: UIViewController()),528            UINavigationController(rootViewController: UIViewController()),529            UINavigationController(rootViewController: UIViewController())530        ]531        assertSnapshot(matching: tab, as: .hierarchy)532    }533    #endif534    #if os(iOS) || os(tvOS)535    func testUIBezierPath() {536        let path = UIBezierPath.heart537        let osName: String538        #if os(iOS)539        osName = "iOS"540        #elseif os(tvOS)541        osName = "tvOS"542        #endif543        assertSnapshot(matching: path, as: .image, named: osName)544        assertSnapshot(matching: path, as: .elementsDescription, named: osName)545    }546    #endif547    func testURLRequest() {548        var get = URLRequest(url: URL(string: "https://www.pointfree.co/")!)549        get.addValue("pf_session={}", forHTTPHeaderField: "Cookie")550        get.addValue("text/html", forHTTPHeaderField: "Accept")551        get.addValue("application/json", forHTTPHeaderField: "Content-Type")552        assertSnapshot(matching: get, as: .raw, named: "get")553        assertSnapshot(matching: get, as: .curl, named: "get-curl")554        var getWithQuery = URLRequest(url: URL(string: "https://www.pointfree.co?key_2=value_2&key_1=value_1&key_3=value_3")!)555        getWithQuery.addValue("pf_session={}", forHTTPHeaderField: "Cookie")556        getWithQuery.addValue("text/html", forHTTPHeaderField: "Accept")557        getWithQuery.addValue("application/json", forHTTPHeaderField: "Content-Type")558        assertSnapshot(matching: getWithQuery, as: .raw, named: "get-with-query")559        assertSnapshot(matching: getWithQuery, as: .curl, named: "get-with-query-curl")560        var post = URLRequest(url: URL(string: "https://www.pointfree.co/subscribe")!)561        post.httpMethod = "POST"562        post.addValue("pf_session={\"user_id\":\"0\"}", forHTTPHeaderField: "Cookie")563        post.addValue("text/html", forHTTPHeaderField: "Accept")564        post.httpBody = Data("pricing[billing]=monthly&pricing[lane]=individual".utf8)565        assertSnapshot(matching: post, as: .raw, named: "post")566        assertSnapshot(matching: post, as: .curl, named: "post-curl")567        var postWithJSON = URLRequest(url: URL(string: "http://dummy.restapiexample.com/api/v1/create")!)568        postWithJSON.httpMethod = "POST"569        postWithJSON.addValue("application/json", forHTTPHeaderField: "Content-Type")570        postWithJSON.addValue("application/json", forHTTPHeaderField: "Accept")571        postWithJSON.httpBody = Data("{\"name\":\"tammy134235345235\", \"salary\":0, \"age\":\"tammy133\"}".utf8)572        assertSnapshot(matching: postWithJSON, as: .raw, named: "post-with-json")573        assertSnapshot(matching: postWithJSON, as: .curl, named: "post-with-json-curl")574        var head = URLRequest(url: URL(string: "https://www.pointfree.co/")!)575        head.httpMethod = "HEAD"576        head.addValue("pf_session={}", forHTTPHeaderField: "Cookie")577        assertSnapshot(matching: head, as: .raw, named: "head")578        assertSnapshot(matching: head, as: .curl, named: "head-curl")579        post = URLRequest(url: URL(string: "https://www.pointfree.co/subscribe")!)580        post.httpMethod = "POST"581        post.addValue("pf_session={\"user_id\":\"0\"}", forHTTPHeaderField: "Cookie")582        post.addValue("application/json", forHTTPHeaderField: "Accept")583        post.httpBody = Data("""584        {"pricing": {"lane": "individual","billing": "monthly"}}585        """.utf8)586        _assertInlineSnapshot(matching: post, as: .raw(pretty: true), with: """587        POST https://www.pointfree.co/subscribe588        Accept: application/json589        Cookie: pf_session={"user_id":"0"}590        {591          "pricing" : {592            "billing" : "monthly",593            "lane" : "individual"594          }595        }596        """)597    }598    #if os(iOS) || os(macOS)599    func testWebView() throws {600        let fixtureUrl = URL(fileURLWithPath: String(#file), isDirectory: false)601            .deletingLastPathComponent()602            .appendingPathComponent("__Fixtures__/pointfree.html")603        let html = try String(contentsOf: fixtureUrl)604        let webView = WKWebView()605        webView.loadHTMLString(html, baseURL: nil)606        assertSnapshot(607            matching: webView,608            as: .image(precision: 0.9, size: .init(width: 800, height: 600)),609            named: platform610        )611    }612    #endif613    #if os(iOS) || os(tvOS)614    func testViewWithZeroHeightOrWidth() {615        var rect = CGRect(x: 0, y: 0, width: 350, height: 0)616        var view = UIView(frame: rect)617        view.backgroundColor = .red618        assertSnapshot(matching: view, as: .image, named: "noHeight")619        rect = CGRect(x: 0, y: 0, width: 0, height: 350)620        view = UIView(frame: rect)621        view.backgroundColor = .green622        assertSnapshot(matching: view, as: .image, named: "noWidth")623        rect = CGRect(x: 0, y: 0, width: 0, height: 0)624        view = UIView(frame: rect)625        view.backgroundColor = .blue626        assertSnapshot(matching: view, as: .image, named: "noWidth.noHeight")627    }628    #endif629    #if os(iOS)630    func testEmbeddedWebView() throws {631        let label = UILabel()632        label.text = "Hello, Blob!"633        let fixtureUrl = URL(fileURLWithPath: String(#file), isDirectory: false)634            .deletingLastPathComponent()635            .appendingPathComponent("__Fixtures__/pointfree.html")636        let html = try String(contentsOf: fixtureUrl)637        let webView = WKWebView()638        webView.loadHTMLString(html, baseURL: nil)639        webView.isHidden = true640        let stackView = UIStackView(arrangedSubviews: [label, webView])641        stackView.axis = .vertical642        assertSnapshot(643            matching: stackView,644            as: .image(size: .init(width: 800, height: 600)),645            named: platform646        )647    }648    #endif649    #if os(iOS) || os(macOS)650    final class ManipulatingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {651        func webView(_ webView: WKWebView, didFinish _: WKNavigation!) {652            webView.evaluateJavaScript("document.body.children[0].classList.remove(\"hero\")") // Change layout653        }654    }655    func testWebViewWithManipulatingNavigationDelegate() throws {656        let manipulatingWKWebViewNavigationDelegate = ManipulatingWKWebViewNavigationDelegate()657        let webView = WKWebView()658        webView.navigationDelegate = manipulatingWKWebViewNavigationDelegate659        let fixtureUrl = URL(fileURLWithPath: String(#file), isDirectory: false)660            .deletingLastPathComponent()661            .appendingPathComponent("__Fixtures__/pointfree.html")662        let html = try String(contentsOf: fixtureUrl)663        webView.loadHTMLString(html, baseURL: nil)664        assertSnapshot(665            matching: webView,666            as: .image(precision: 0.9, size: .init(width: 800, height: 600)),667            named: platform668        )669        _ = manipulatingWKWebViewNavigationDelegate670    }671    final class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {672        func webView(673            _: WKWebView,674            decidePolicyFor _: WKNavigationAction,675            decisionHandler: @escaping (WKNavigationActionPolicy) -> Void676        ) {677            decisionHandler(.cancel)678        }679    }680    func testWebViewWithCancellingNavigationDelegate() throws {681        let cancellingWKWebViewNavigationDelegate = CancellingWKWebViewNavigationDelegate()682        let webView = WKWebView()683        webView.navigationDelegate = cancellingWKWebViewNavigationDelegate684        let fixtureUrl = URL(fileURLWithPath: String(#file), isDirectory: false)685            .deletingLastPathComponent()686            .appendingPathComponent("__Fixtures__/pointfree.html")687        let html = try String(contentsOf: fixtureUrl)688        webView.loadHTMLString(html, baseURL: nil)689        assertSnapshot(690            matching: webView,691            as: .image(size: .init(width: 800, height: 600)),692            named: platform693        )694        _ = cancellingWKWebViewNavigationDelegate695    }696    #endif697    #if os(iOS)698    @available(iOS 13.0, *)699    func testSwiftUIView_iOS() {700        let view = TestView().environment(\.colorScheme, .light)701        let precision: Float = 0.99702        assertSnapshot(matching: view, as: .image(precision: precision, traits: .init(userInterfaceStyle: .light)))703        assertSnapshot(matching: view, as: .image(precision: precision, layout: .sizeThatFits, traits: .init(userInterfaceStyle: .light)), named: "size-that-fits")704        assertSnapshot(matching: view, as: .image(precision: precision, layout: .fixed(width: 200, height: 100), traits: .init(userInterfaceStyle: .light)), named: "fixed")705        assertSnapshot(matching: view, as: .image(precision: precision, layout: .device(config: .iPhoneSe), traits: .init(userInterfaceStyle: .light)), named: "device")706    }707    #endif708    #if os(macOS)709    @available(macOS 11.0, *)710    func testSwiftUIView_macOS() {711        let view = TestView().environment(\.colorScheme, .light)712        assertSnapshot(matching: view, as: .image(size: .init(width: 100, height: 50), precision: 0.98))713    }714    #endif715    #if os(tvOS)716    @available(tvOS 13.0, *)717    func testSwiftUIView_tvOS() {718        let view = TestView().environment(\.colorScheme, .light)719        let precision: Float = 0.98720        assertSnapshot(matching: view, as: .image(precision: precision))721        assertSnapshot(matching: view, as: .image(precision: precision, layout: .sizeThatFits), named: "size-that-fits")722        assertSnapshot(matching: view, as: .image(precision: precision, layout: .fixed(width: 300, height: 100)), named: "fixed")723        assertSnapshot(matching: view, as: .image(precision: precision, layout: .device(config: .tv)), named: "device")724    }725    #endif726}727#if os(iOS) || os(tvOS)728class TestViewController: UIViewController {729    override func viewDidLoad() {730        super.viewDidLoad()731        let topView = UIView()732        let leadingView = UIView()733        let trailingView = UIView()734        let bottomView = UIView()735        navigationItem.leftBarButtonItem = .init(barButtonSystemItem: .add, target: nil, action: nil)736        view.backgroundColor = .white737        topView.backgroundColor = .blue738        leadingView.backgroundColor = .green739        trailingView.backgroundColor = .red740        bottomView.backgroundColor = .magenta741        topView.translatesAutoresizingMaskIntoConstraints = false742        leadingView.translatesAutoresizingMaskIntoConstraints = false743        trailingView.translatesAutoresizingMaskIntoConstraints = false744        bottomView.translatesAutoresizingMaskIntoConstraints = false...

viewDidLoad

Using AI Code Generation

1override func viewDidLoad() {2    super.viewDidLoad()3    let myRequest = URLRequest(url: myURL!)4    webView.load(myRequest)5    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()6}7class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {8    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {9        print("didStartProvisionalNavigation")10        webView.stopLoading()11    }12}13class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {14    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {15        print("didFailProvisionalNavigation")16        webView.stopLoading()17    }18}19class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {20    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {21        print("didFail")22        webView.stopLoading()23    }24}25class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {26    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {27        print("didFail")28        webView.stopLoading()29    }30}31class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {32    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {33        print("didFail")34        webView.stopLoading()35    }36}

viewDidLoad

Using AI Code Generation

1override func viewDidLoad() {2    super.viewDidLoad()3    let webView = WKWebView(frame: view.bounds)4    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()5    view.addSubview(webView)6}7class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {8    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {9        decisionHandler(.cancel)10    }11}12override func viewDidLoad() {13    super.viewDidLoad()14    let webView = WKWebView(frame: view.bounds)15    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()16    view.addSubview(webView)17}18class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {19    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {20        decisionHandler(.cancel)21    }22}23override func viewDidLoad() {24    super.viewDidLoad()25    let webView = WKWebView(frame: view.bounds)26    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()27    view.addSubview(webView)28}29class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {30    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {31        decisionHandler(.cancel)32    }33}

viewDidLoad

Using AI Code Generation

1import UIKit2import WebKit3class ViewController: UIViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        let request = URLRequest(url: url)7        webView.load(request)8    }9}10import UIKit11import WebKit12class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {13    var completion: (() -> Void)?14    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {15        if let completion = completion {16            completion()17        }18    }19}20import UIKit21import WebKit22class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {23    var completion: (() -> Void)?24    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {25        if let completion = completion {26            completion()27        }28    }29}30import UIKit31import WebKit32class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {33    var completion: (() -> Void)?34    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {35        if let completion = completion {36            completion()37        }38    }39}40import UIKit41import WebKit42class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {43    var completion: (() -> Void)?44    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {45        if let completion = completion {46            completion()47        }48    }49}50import UIKit51import WebKit52class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {53    var completion: (() -> Void)?54    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {55        if let completion = completion {56            completion()57        }58    }59}

viewDidLoad

Using AI Code Generation

1import UIKit2import WebKit3class ViewController: UIViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        cancellingWKWebViewNavigationDelegate = CancellingWKWebViewNavigationDelegate(webView: webView)7        webView.load(URLRequest(url: url))8    }9}10import UIKit11import WebKit12class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {13    init(webView: WKWebView) {14        super.init()15    }16    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {17        delegate?.webViewDidStartNavigation(webView)18    }19    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {20        delegate?.webViewDidCommitNavigation(webView)21    }22    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {23        delegate?.webViewDidFinishNavigation(webView)24    }25    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {26        delegate?.webViewDidFailNavigation(webView, withError: error)27    }28    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {29        delegate?.webViewDidFailProvisionalNavigation(webView, withError: error)30    }31    func webViewWebContentProcessDidTerminate(_ webView: WKWebView) {32        delegate?.webViewWebContentProcessDidTerminate(webView)33    }34    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {35        delegate?.webViewDidReceiveServerRedirectForProvisionalNavigation(webView)36    }37    func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {38        delegate?.webView(webView

viewDidLoad

Using AI Code Generation

1import UIKit2import WebKit3class ViewController: UIViewController {4    override func viewDidLoad() {5        super.viewDidLoad()6        let request = URLRequest(url: url!)7        webView.load(request)8        webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()9    }10}11import UIKit12import WebKit13class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {14    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {15        print("Started Provisional Navigation")16    }17    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {18        print("Received Server Redirect For Provisional Navigation")19    }20    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {21        print("Failed Provisional Navigation")22    }23    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {24        print("Committed Navigation")25    }26    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {27        print("Finished Navigation")28    }29    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {30        print("Failed Navigation")31    }32}33import UIKit34import WebKit35class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {36    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {37        print("Started Provisional Navigation")38    }39    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {40        print("Received Server Redirect For Provisional Navigation")41    }42    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {43        print("Failed Provisional Navigation")44    }45    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {46        print("Committed Navigation")47    }48    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {49        print("

viewDidLoad

Using AI Code Generation

1override func viewDidLoad() {2    super.viewDidLoad()3    let webView = WKWebView(frame: view.bounds)4    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()5    view.addSubview(webView)6}7override func viewDidLoad() {8    super.viewDidLoad()9    let webView = WKWebView(frame: view.bounds)10    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()11    view.addSubview(webView)12}13override func viewDidLoad() {14    super.viewDidLoad()15    let webView = WKWebView(frame: view.bounds)16    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()17    view.addSubview(webView)18}19override func viewDidLoad() {20    super.viewDidLoad()21    let webView = WKWebView(frame: view.bounds)22    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()23    view.addSubview(webView)24}25override func viewDidLoad() {26    super.viewDidLoad()27    let webView = WKWebView(frame: view.bounds)28    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()29    view.addSubview(webView)30}31override func viewDidLoad() {32    super.viewDidLoad()33    let webView = WKWebView(frame: view.bounds)34    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()

viewDidLoad

Using AI Code Generation

1class ViewController: UIViewController, CancellingWKWebViewNavigationDelegate {2    override func viewDidLoad() {3        super.viewDidLoad()4        cancellingWKWebViewNavigationDelegate = CancellingWKWebViewNavigationDelegate()5    }6}7class CancellingWKWebViewNavigationDelegate: NSObject, WKNavigationDelegate {8    override init() {9        super.init()10        webView = WKWebView()11    }12    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {13        print("didStartProvisionalNavigation")14    }15    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {16        print("didFail")17    }18    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {19        print("didFailProvisionalNavigation")20    }21    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {22        print("didFinish")23    }24    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {25        print("didCommit")26    }27    func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {28        print("didReceiveServerRedirectForProvisionalNavigation")29    }30    func webViewWebContentProcessDidTerminate(_ webView: WKWebView) {31        print("webViewWebContentProcessDidTerminate")32    }33    func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {34        print("didReceive")35    }36}

viewDidLoad

Using AI Code Generation

1override func viewDidLoad() {2    super.viewDidLoad()3    let request = URLRequest(url: url!)4    webView.load(request)5}6func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {7    print("Started")8}9func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {10    print("Committed")11}12func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {13    print("Finished")14}15func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {16    print("Failed")17}18func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {19    print("Failed Provisional")20}21func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {22    decisionHandler(.cancel)23}24func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {25    decisionHandler(.cancel)26}27func webViewWebContentProcessDidTerminate(_ webView: WKWebView) {28    print("Terminated")29}30func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {31    print("Received Server Redirect")32}33func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {34    print("Received Authentication Challenge")35    completionHandler(.performDefaultHandling, nil)36}37func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {38    print("Received Authentication Challenge")39    completionHandler(.performDefaultHandling, nil)40}41func webView(_ webView: WKWebView, didReceive

viewDidLoad

Using AI Code Generation

1override func viewDidLoad() {2    super.viewDidLoad()3    let webView = WKWebView(frame: view.frame)4    webView.navigationDelegate = CancellingWKWebViewNavigationDelegate()5    webView.load(URLRequest(url: url))6    view.addSubview(webView)7}8extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {9    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {10        decisionHandler(.cancel)11    }12}13extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {14    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {15        print(error)16    }17}18extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {19    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {20        print(error)21    }22}23extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {24    func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {25        print("didStartProvisionalNavigation")26    }27}28extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {29    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {30        print("didFinish")31    }32}33extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {34    func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {35        print("didCommit")36    }37}38extension CancellingWKWebViewNavigationDelegate: WKNavigationDelegate {39    func webView(_ webView

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