How to use CollectionViewController class

Best Swift-snapshot-testing code snippet using CollectionViewController

PrayerDetailsViewController.swift

Source:PrayerDetailsViewController.swift Github

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1// Sasha Loghozinsky -- alogozinsky@gmail.com \ lohozinsky.o@d2.digital -- 20202import UIKit3class PrayerDetailsCollectionViewController: UIViewController {4 5 convenience init(indexPath: IndexPath, data: [Prayer]) {6 self.init()7 8 self.currentIndexPath = indexPath9 self.data = data10 }11 12 var currentIndexPath: IndexPath?13 var data: [Prayer] = []14 15 let collectionViewController: UICollectionViewController = {16 let collectionViewController = UICollectionViewController(collectionViewLayout: UICollectionViewFlowLayout())17 collectionViewController.collectionView.isPagingEnabled = true18 collectionViewController.collectionView.showsHorizontalScrollIndicator = false19 collectionViewController.collectionView.contentInset = UIEdgeInsets(top: 10, left: 0, bottom: 0, right: 0)20 collectionViewController.collectionView.alpha = 021 return collectionViewController22 }()23 24 let activityIndicatorView: UIActivityIndicatorView = {25 var activityIndicatorView: UIActivityIndicatorView26 27 if #available(iOS 13.0, *) {28 activityIndicatorView = UIActivityIndicatorView(style: .large)29 } else {30 // Fallback on earlier versions31 activityIndicatorView = UIActivityIndicatorView()32 }33 34 return activityIndicatorView35 }()36 let dismissLabel: Button = {37 let button = Button("Повернутися", fontSize: 14, fontColor: .lightGrayCustom)38 button.addTarget(self, action: #selector(dismissViewController), for: .touchUpInside)39 40 return button41 }()42 let dismissButton: UIButton = {43 let button = UIButton()44 let image = UIImage(named: "arrow-down")45 let imageTint = UIImage(named: "arrow-down")?.withRenderingMode(.alwaysTemplate)46 button.setImage(image, for: .normal)47 button.setImage(imageTint, for: .highlighted)48 button.addTarget(self, action: #selector(dismissViewController), for: .touchUpInside)49 50 return button51 }()52 53 override func viewDidLoad() {54 super.viewDidLoad()55 self.collectionViewController.collectionView.delegate = self56 self.collectionViewController.collectionView.dataSource = self57 // Do any additional setup after loading the view.58 self.collectionViewController.collectionView.register(PrayerDetailsCollectionViewCell.self, forCellWithReuseIdentifier: PrayerDetailsCollectionViewCell.reuseIdentifier)59 60 if let layout = self.collectionViewController.collectionView.collectionViewLayout as? UICollectionViewFlowLayout {61 layout.scrollDirection = .horizontal62 layout.minimumLineSpacing = 063 layout.minimumInteritemSpacing = 064 }65 66 if #available(iOS 13.0, *) {67 self.view.addSubviews([self.collectionViewController.collectionView, self.dismissButton, self.activityIndicatorView])68 } else {69 self.view.addSubviews([self.collectionViewController.collectionView, self.dismissLabel, self.dismissButton, self.activityIndicatorView])70 }71 72 self.activityIndicatorView.startAnimating() 73 }74 75 override func viewWillLayoutSubviews() {76 super.viewWillLayoutSubviews()77 setupLayout()78 }79 80 override func viewDidAppear(_ animated: Bool) {81 super.viewDidAppear(animated)82 // Do any additional setup before appearing the view.83 if let indexPath = self.currentIndexPath {84 if let rect = self.collectionViewController.collectionView.layoutAttributesForItem(at: indexPath)?.frame {85 DispatchQueue.main.async {86 self.collectionViewController.collectionView.scrollRectToVisible(rect, animated: false)87 }88 }89 self.activityIndicatorView.stopAnimating()90 UIView.animate(withDuration: 0.5) {91 self.collectionViewController.collectionView.alpha = 192 }93 self.currentIndexPath = nil94 }95 }96 97 private func setupLayout() {98 self.view.backgroundColor = .white99 if #available(iOS 13.0, *) {100 self.dismissButton.anchor(top: self.view.topAnchor, padding: UIEdgeInsets(top: 8, left: 0, bottom: 0, right: 0), size: CGSize(width: 0, height: 16))101 } else {102 // Fallback on earlier versions103 self.dismissButton.anchor(top: self.view.topAnchor, padding: UIEdgeInsets(top: 48, left: 0, bottom: 0, right: 0), size: CGSize(width: 0, height: 16))104 self.dismissLabel.anchor(leading: self.view.leadingAnchor, bottom: self.dismissButton.topAnchor, trailing: self.view.trailingAnchor, padding: UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0))105 }106 self.dismissButton.centerXAnchor.constraint(equalTo: self.view.centerXAnchor).isActive = true107 self.activityIndicatorView.anchor(centerY: self.view.centerYAnchor, centerX: self.view.centerXAnchor)108 self.collectionViewController.collectionView.backgroundColor = .white109// self.collectionViewController.collectionView.anchor(top: self.dismissButton.bottomAnchor, leading: self.view.leadingAnchor, bottom: self.view.bottomAnchor, trailing: self.view.trailingAnchor, padding: .zero)110 self.collectionViewController.collectionView.pin.below(of: self.dismissButton).marginTop(0).horizontally().bottom()111 }112 113}114extension PrayerDetailsCollectionViewController: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {115 116 // MARK: UICollectionViewDataSource117 118 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {119 let size = CGSize(width: collectionViewController.collectionView.bounds.size.width, height: collectionViewController.collectionView.bounds.size.height)120 return size121 }122 123 func numberOfSections(in collectionView: UICollectionView) -> Int {124 // #warning Incomplete implementation, return the number of sections125 return 1126 }127 128 ...

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WelcomeViewController.swift

Source:WelcomeViewController.swift Github

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...6}7final class WelcomeViewController: UIViewController {8 var viewModel = WelcomeViewModel()9 weak var delegate: WelcomeViewControllerDelegate?10 lazy var collectionViewController: OnboardingCollectionViewController = {11 let layout = UICollectionViewFlowLayout()12 layout.minimumLineSpacing = 013 layout.minimumInteritemSpacing = 014 layout.sectionInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)15 layout.scrollDirection = .horizontal16 let collectionViewController = OnboardingCollectionViewController(collectionViewLayout: layout)17 collectionViewController.pages = pages18 collectionViewController.pageControl = pageControl19 collectionViewController.collectionView?.isPagingEnabled = true20 collectionViewController.collectionView?.showsHorizontalScrollIndicator = false21 collectionViewController.collectionView?.backgroundColor = viewModel.backgroundColor22 return collectionViewController23 }()24 let pageControl: UIPageControl = {25 let pageControl = UIPageControl()26 pageControl.translatesAutoresizingMaskIntoConstraints = false27 return pageControl28 }()29 let createWalletButton: UIButton = {30 let button = Button(size: .large, style: .solid)...

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AnimeViewController.swift

Source:AnimeViewController.swift Github

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...16 navigationController?.navigationBar.prefersLargeTitles = true;17 navigationController?.navigationBar.shadowImage = UIImage();18 navigationController?.navigationBar.isTranslucent = false;19 20 let collectionViewController = AnimeCollectionViewController();21 addChild(collectionViewController);22 collectionViewController.view.translatesAutoresizingMaskIntoConstraints = false;23 containerView.addSubview(collectionViewController.view);24 collectionViewController.view.constraintToFit(inContainerView: containerView);25 collectionViewController.didMove(toParent: self);26 }27}...

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SnapshotTesting3class ViewController: UIViewController {4 override func viewDidLoad() {5 super.viewDidLoad()6 let vc = CollectionViewController()7 vc.view.frame = CGRect(x: 0, y: 0, width: 600, height: 600)8 self.view.addSubview(vc.view)9 }10}11import UIKit12import SnapshotTesting13class CollectionViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {14 override func viewDidLoad() {15 super.viewDidLoad()16 let layout = UICollectionViewFlowLayout()17 collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: 600, height: 600), collectionViewLayout: layout)18 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "cell")19 self.view.addSubview(collectionView)20 }21 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {22 }23 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {24 let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)25 }26 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {27 return CGSize(width: 100, height: 100)28 }29}30import UIKit31import SnapshotTesting32class CollectionViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {33 override func viewDidLoad() {34 super.viewDidLoad()35 let layout = UICollectionViewFlowLayout()36 collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width:

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SnapshotTesting3class ViewController: UIViewController {4 override func viewDidLoad() {5 super.viewDidLoad()6 let viewController = CollectionViewController()7 assertSnapshot(matching: viewController, as: .image)8 }9}10import UIKit11import SnapshotTesting12class CollectionViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {13 override func viewDidLoad() {14 super.viewDidLoad()15 let collectionViewLayout = UICollectionViewFlowLayout()16 collectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: collectionViewLayout)17 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "cell")18 self.view.addSubview(collectionView)19 }20}21import UIKit22import SnapshotTesting23class CollectionViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {24 override func viewDidLoad() {25 super.viewDidLoad()26 let collectionViewLayout = UICollectionViewFlowLayout()27 collectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: collectionViewLayout)28 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "cell")29 self.view.addSubview(collectionView)30 }31 func numberOfSections(in collectionView: UICollectionView) -> Int {32 }33 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {34 }35 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {36 let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)37 }38}39import UIKit40import SnapshotTesting41class CollectionViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {42 override func viewDidLoad() {43 super.viewDidLoad()

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SnapKit3import SwiftSnapshotTesting4class CollectionViewController: UIViewController {5 let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())6 override func viewDidLoad() {7 super.viewDidLoad()8 view.addSubview(collectionView)9 collectionView.snp.makeConstraints { make in10 make.edges.equalToSuperview()11 }12 }13}14import UIKit15import SnapshotTesting16class ViewController: UIViewController {17 override func viewDidLoad() {18 super.viewDidLoad()19 let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())20 view.addSubview(collectionView)21 collectionView.snp.makeConstraints { make in22 make.edges.equalToSuperview()23 }24 assertSnapshot(matching: collectionView, as: .image)25 }26}27import UIKit28import SnapshotTesting29class ViewController: UIViewController {30 override func viewDidLoad() {31 super.viewDidLoad()32 let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())33 view.addSubview(collectionView)34 collectionView.snp.makeConstraints { make in35 make.edges.equalToSuperview()36 }37 assertSnapshot(matching: view, as: .image)38 }39}40import UIKit41import SnapshotTesting42class ViewController: UIViewController {43 override func viewDidLoad() {44 super.viewDidLoad()45 let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())46 view.addSubview(collectionView)47 collectionView.snp.makeConstraints { make in48 make.edges.equalToSuperview()49 }50 assertSnapshot(matching: self, as: .image)51 }52}53import UIKit54import SnapshotTesting55class ViewController: UIViewController {56 override func viewDidLoad() {57 super.viewDidLoad()58 let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())59 view.addSubview(collectionView)60 collectionView.snp.makeConstraints { make in61 make.edges.equalToSuperview()62 }63 assertSnapshot(matching: self, as: .recursiveDescription)64 }65}66import UIKit67import SnapshotTesting68class ViewController: UIViewController {69 override func viewDidLoad() {

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CollectionViewController

Using AI Code Generation

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1import SnapshotTesting2import XCTest3class CollectionViewControllerTests: XCTestCase {4 func testCollectionViewController() {5 let vc = CollectionViewController()6 assertSnapshot(matching: vc, as: .image)7 }8}9import UIKit10import XCTest11class CollectionViewController: UICollectionViewController {12 override func viewDidLoad() {13 super.viewDidLoad()14 }15}16import UIKit17import XCTest18class CollectionViewController: UICollectionViewController {19 override func viewDidLoad() {20 super.viewDidLoad()21 }22}23import UIKit24import XCTest25class CollectionViewController: UICollectionViewController {26 override func viewDidLoad() {27 super.viewDidLoad()28 }29}30import UIKit31import XCTest32class CollectionViewController: UICollectionViewController {33 override func viewDidLoad() {34 super.viewDidLoad()35 }36}37import UIKit38import XCTest39class CollectionViewController: UICollectionViewController {40 override func viewDidLoad() {41 super.viewDidLoad()42 }43}44import UIKit45import XCTest46class CollectionViewController: UICollectionViewController {47 override func viewDidLoad() {48 super.viewDidLoad()49 }50}51import UIKit52import XCTest53class CollectionViewController: UICollectionViewController {54 override func viewDidLoad() {55 super.viewDidLoad()56 }57}58import UIKit59import XCTest60class CollectionViewController: UICollectionViewController {61 override func viewDidLoad() {62 super.viewDidLoad()63 }64}

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CollectionViewController

Using AI Code Generation

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1import CollectionViewController2import SnapshotTesting3import XCTest4class CollectionViewControllerTests: XCTestCase {5 func testExample() {6 let vc = CollectionViewController()7 assertSnapshot(matching: vc, as: .image(on: .iPhoneX))8 }9}10.package(url: "

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SnapshotTesting3class CollectionViewController: UIViewController {4 override func viewDidLoad() {5 super.viewDidLoad()6 let layout = UICollectionViewFlowLayout()7 let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: 100, height: 100), collectionViewLayout: layout)8 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "cell")9 view.addSubview(collectionView)10 }11}12extension CollectionViewController: UICollectionViewDataSource {13 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {14 }15 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {16 let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath)17 }18}19extension CollectionViewController: UICollectionViewDelegate {20 func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {21 print(indexPath)22 }23}24extension CollectionViewController: UICollectionViewDelegateFlowLayout {25 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {26 return CGSize(width: 50, height: 50)27 }28}29let viewController = CollectionViewController()30viewController.view.frame = CGRect(x: 0, y: 0, width: 100, height: 100)31viewController.view.setNeedsLayout()32viewController.view.layoutIfNeeded()33assertSnapshot(matching: viewController, as: .image)34import UIKit35import SnapshotTesting36class CollectionViewController: UIViewController {37 override func viewDidLoad() {38 super.viewDidLoad()39 let layout = UICollectionViewFlowLayout()40 let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: 100, height: 100), collectionViewLayout: layout)41 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "cell")42 view.addSubview(collectionView)43 }44}45extension CollectionViewController: UICollectionViewDataSource {46 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {47 }48 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath:

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SwiftUI3import SnapshotTesting4import XCTest5class CollectionViewController: UIViewController {6 private var currentSnapshot = NSDiffableDataSourceSnapshot<String, Int>()7 override func viewDidLoad() {8 super.viewDidLoad()9 configureHierarchy()10 configureDataSource()11 }12 private func createLayout() -> UICollectionViewLayout {13 let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),14 heightDimension: .fractionalHeight(1.0))15 let item = NSCollectionLayoutItem(layoutSize: itemSize)16 let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),17 heightDimension: .absolute(44))18 let group = NSCollectionLayoutGroup.horizontal(layoutSize: groupSize,19 let section = NSCollectionLayoutSection(group: group)20 section.contentInsets = NSDirectionalEdgeInsets(top: 20, leading: 20, bottom: 20, trailing: 20)21 let layout = UICollectionViewCompositionalLayout(section: section)22 }23 private func configureHierarchy() {24 collectionView = UICollectionView(frame: view.bounds, collectionViewLayout: createLayout())25 view.addSubview(collectionView)26 }27 private func configureDataSource() {28 dataSource = UICollectionViewDiffableDataSource<String, Int>(collectionView: collectionView) {29 (collectionView: UICollectionView, indexPath: IndexPath, identifier: Int) -> UICollectionViewCell? in30 guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as? UICollectionViewCell else {31 fatalError("Cannot create new cell")32 }33 }34 currentSnapshot.appendSections(["First"])35 currentSnapshot.appendItems(Array(0..<5))36 dataSource.apply(currentSnapshot, animatingDifferences: false)37 }38}39class CollectionViewControllerTests: XCTestCase {40 func testExample() {41 let vc = CollectionViewController()42 vc.viewDidLoad()43 assertSnapshot(matching: vc, as: .image)44 }45}46import UIKit47import SwiftUI48import

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CollectionViewController

Using AI Code Generation

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1import UIKit2import XCTest3@testable import SwiftSnapshotTesting4class CollectionViewController: UIViewController {5 let layout = UICollectionViewFlowLayout()6 override func viewDidLoad() {7 super.viewDidLoad()8 layout.itemSize = CGSize(width: 100, height: 100)9 collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)10 collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: cellIdentifier)11 view.addSubview(collectionView)12 NSLayoutConstraint.activate([13 collectionView.topAnchor.constraint(equalTo: view.topAnchor),14 collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor),15 collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor),16 collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor),17 }18}19extension CollectionViewController: UICollectionViewDataSource {20 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {21 }22 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {23 let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellIdentifier, for: indexPath)24 }25}26class CollectionViewControllerTests: XCTestCase {27 func testCollectionView() {28 let vc = CollectionViewController()29 vc.view.frame = CGRect(x: 0, y: 0, width: 300, height: 300)30 vc.viewDidLoad()31 assertSnapshot(matching: vc, as: .image)32 }33}34import UIKit35import XCTest36@testable import SwiftSnapshotTesting37class ViewController: UIViewController {38 override func viewDidLoad() {39 super.viewDidLoad()40 }41}42class ViewControllerTests: XCTestCase {43 func testViewController() {44 let vc = ViewController()45 vc.view.frame = CGRect(x: 0, y: 0, width: 300, height: 300)46 vc.viewDidLoad()47 assertSnapshot(matching: vc, as: .image)48 }49}50import UIKit51import XCTest52@testable import SwiftSnapshotTesting53import SnapshotTesting54class ViewController: UIViewController {55 override func viewDidLoad() {56 super.viewDidLoad()57 }58}59class ViewControllerTests: XCTestCase {60 func testViewController() {61 let vc = ViewController()

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CollectionViewController

Using AI Code Generation

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1import UIKit2import SwiftSnapshotTesting3import XCTest4class CollectionViewController: UIViewController, UICollectionViewDataSource {5 override func viewDidLoad() {6 super.viewDidLoad()7 let layout = UICollectionViewFlowLayout()8 collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)9 collectionView.register(Cell.self, forCellWithReuseIdentifier: "cell")10 view.addSubview(collectionView)11 NSLayoutConstraint.activate([12 collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor),13 collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor),14 collectionView.topAnchor.constraint(equalTo: view.topAnchor),15 collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor),16 }17 func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {18 }19 func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {20 let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! Cell21 }22}23class Cell: UICollectionViewCell {24 let label = UILabel()25 override init(frame: CGRect) {26 super.init(frame: frame)27 label.font = .systemFont(ofSize: 16)28 contentView.addSubview(label)29 NSLayoutConstraint.activate([30 label.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),31 label.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),32 label.topAnchor.constraint(equalTo: contentView.topAnchor),33 label.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),34 }35 required init?(coder aDecoder: NSCoder) {36 fatalError("init(coder:) has not been implemented")37 }38}39class CollectionViewControllerTests: XCTestCase {40 func testCollectionViewController() {41 let vc = CollectionViewController()42 vc.view.frame = CGRect(x: 0, y: 0, width: 375, height: 667)43 vc.view.layoutIfNeeded()44 assertSnapshot(matching: vc, as: .image)45 }46}

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