danielCarlosCE

//
//  ContentSizePagingCollectionDelegate.swift
//  CardsCarousel
//
//  Created by Daniel Carlos Souza Carvalho on 2/20/21.
//

import UIKit

/// Horizontal paging for collections based on the content size

danielCarlosCE

extension AVCodeReader: AVCaptureMetadataOutputObjectsDelegate {
    func metadataOutput(_ captureOutput: AVCaptureMetadataOutput,
                        didOutput metadataObjects: [AVMetadataObject],
                        from connection: AVCaptureConnection) {
        guard let readableCode = metadataObjects.first as? AVMetadataMachineReadableCodeObject,
              let code = readableCode.stringValue else {
             return
        }

        //Vibrate the phone

danielCarlosCE

override init() {
  super.init()

  //Make sure the device can handle video
  guard let videoDevice = AVCaptureDevice.default(for: .video),
        let deviceInput = try? AVCaptureDeviceInput(device: videoDevice) else {
      return
  }
  
  //session

danielCarlosCE

import UIKit

class AppDelegate {
    var window: UIWindow?
}

//Chain of Resposability: Handler
protocol ErrorHandler {
    var errorHandlerSuccessor: ErrorHandler? {get}
    func handleError(error: Error)

danielCarlosCE

import Foundation

/// 9 radom numbers followed by two verifying digits
var randomValidCpf:  String {
    var cpf = (1...11).map { _ in Int(arc4random_uniform(9)) }
    
    cpf[9] = calcVerifyingDigit(originalValue: cpf, weights: (2...10).map{$0}.reversed())
    
    cpf[10] = calcVerifyingDigit(originalValue: cpf, weights: (2...11).map{$0}.reversed())
    

danielCarlosCE

import UIKit


//MARK: Common
enum Result<T> {
    case success(T)
    case failure(Error)
}
struct Task {
    var title: String

danielCarlosCE

import UIKit
import PlaygroundSupport


var str = "Hello, playground"
let view = UIView(frame: CGRect(x: 0, y: 0, width: 600, height: 600))
view.backgroundColor = .red
let bottomLabel = UILabel()
bottomLabel.text = "Hello world!"
bottomLabel.sizeToFit()

danielCarlosCE

private extension XCTestCase {
    func XCTAssertThrows<T, E>(_ expression: @autoclosure () throws -> T, specificError: E) where E: Error, E: Equatable  {

        XCTAssertThrowsError(try expression()) { error in
            XCTAssertEqual(error as? E, specificError)
        }

    }
}

danielCarlosCE

func testPrepareForSegueDoesSetDestination() {
    let destination = storyBoard.instantiateViewController(withIdentifier: "InputVC") as! ViewController2
    let segue = UIStoryboardSegue(identifier: "addExpense", source: sut, destination: destination)

    sut.prepare(for: segue, sender: nil)

    XCTAssertNotNil(destination.completion)
    XCTAssertEqual(destination.type, .expense)
}

danielCarlosCE

enum Result<T> {
    case success(T)
    case failure(Error)
}

protocol PlacePicker {
    func pick(result: @escaping (Result<Place>) -> Void)
}

protocol Place {