import Foundation
import UIKit

struct ExampleViewModel {
    let image: UIImage?
    let text: String
    let subText: String
}

class ExampleView: UIView {

    @IBOutlet var imageView: UIImageView!
    @IBOutlet var label: UILabel!
    @IBOutlet var subLabel: UILabel!

    // MARK: - Public

    func configure(with viewModel: ExampleViewModel) {
        imageView.image = viewModel.image
        label.text = viewModel.text
        subLabel.text = viewModel.subText
    }
}

import SwiftCheck

extension ExampleViewModel: Arbitrary {

    // This is a random generator of `ExampleViewModel`
    public static var arbitrary: Gen<ExampleViewModel> {
        return Gen<ExampleViewModel>.compose { c in
            return ExampleViewModel(
                image: c.generate(using: .image(min: 20, max: 100)),
                text: c.generate(using: .words),
                subText: c.generate(using: .words)
            )
        }
    }
}

import XCTest
import ADAssertLayout
import ADLayoutTest

class ADLayoutTest_ExampleTests: XCTestCase {

    func testExampleView() {

        runLayoutTests(named: "ExampleView") { (viewModel: ExampleViewModel) in
            // create the view we want to test
            let view: ExampleView = ExampleView.fromNib(named: "ExampleViewValid")

            // setup the view and pass the random view model
            view.backgroundColor = UIColor.white
            view.frame = CGRect(x: 0, y: 0, width: 320.0, height: 150.0)
            view.configure(with: viewModel)

            // layout the view
            view.setNeedsLayout()
            view.layoutIfNeeded()

            // run layout assertions (no view overlap, no ambiguous layout, etc)
            do {
                try view.ad_runBasicRecursiveTests()
            } catch {
                return .failure(view, error)
            }
            return .success(view)
        }
    }
}

ExampleViewModel(
    image: Optional(<UIImage: 0x6000009a4380>, {36, 79}),
    text: "Erat porta eget venenatis porta",
    subText: "Elit elit etiam dapibus at erat"
)

.replay(
    seed1: 904979560,
    seed2: 363827163,
    size: 8
)

    func testExampleViewSavedScreenshots() {
        runLayoutTests(
            named: "ExampleView Saved Screenshots",
            randomStrategy: .consistent, // mandatory to have the same screenshots every time
            maxTestsCount: 5 // we only want 5 screenshots
        ) { (viewModel: ExampleViewModel) in
            // same code as before
            let view: ExampleView = ExampleView.fromNib(named: "ExampleViewValid")
            view.backgroundColor = UIColor.white
            view.frame = CGRect(x: 0, y: 0, width: 320.0, height: 150.0)
            view.configure(with: viewModel)
            view.setNeedsLayout()
            view.layoutIfNeeded()

            // Snapshot the view (depends of the library used)
            assertSnapshot(
                matching: view,
                as: .image
            )

            // no layout assertions, we just check the generated screenshots
            return .success // we don't pass the view here because we don't care
        }
    }