yimajo

前提

• テスト駆動開発 の感想
• ()は感想

テスト駆動開発 読書録

ch1. 仮実装

• どのようなクラスから始めるかではなくテストから始める

yimajo

import PlaygroundSupport
import SwiftUI
import Combine

class ObservableObject1: ObservableObject {
    @Published var name: String = "src"
}

struct ContentView1: View {
    @ObservedObject private var object = ObservableObject1()

yimajo

/*:

 # EnvironmentValuesはSubViewに伝搬するしカスタムなKeyも指定できる

 - EnvironmentValuesは特定のKeyに対して値を設定できる
    - 標準のKey
        - https://developer.apple.com/documentation/swiftui/environmentvalues
 - EnvironmentValuesが特定のViewの項目にそのまま紐付いている
    - 例えば標準のKeyである\.fontはView上のTextのfontと結びついている
        - Keyの値がView暗黙的にバインディングされている感じ

yimajo

import Foundation

protocol UseCase where Failure: Error {
    associatedtype Parameters
    associatedtype Success
    associatedtype Failure

    func callAsFunction(_ parameters: Parameters, completion: ((Result<Success, Failure>) -> ())?)
}

yimajo

name: CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  textlint:

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//: Playground
import Combine

let publisherA = (1...4).publisher
let publisherB = publisherA.map { $0 * 100 }


_ = Publishers.CombineLatest(publisherA, publisherB)
    .print()
    .sink(receiveValue: {

yimajo

import SwiftUI

extension EnvironmentValues {
    struct AccessTokenKey: EnvironmentKey {
        static var defaultValue: String? {
            nil
        }
    }

    var accessToken: String? {

yimajo

import UIKit
import PhotosUI

class ViewController: UIViewController {
    
    @IBAction func presentPickerForImagesIncludingLivePhotos(_ sender: Any) {
        presentPicker(filter: PHPickerFilter.images)
    }

    private func presentPicker(filter: PHPickerFilter) {

yimajo

import Foundation
import MobileCoreServices
import CoreImage

public struct JPEGConverter {
    let data: Data
    let dataUTI: String

    public init(data: Data, with dataUTI: String) {
        self.data = data

yimajo

XCRUN = /usr/bin/env xcrun --sdk macosx
SWIFT_FORMAT_PATHS = <フォーマットしたいパス>

format:
	$(XCRUN) swift run -c release \
		swift-format --mode format --recursive --in-place $(SWIFT_FORMAT_PATHS)

format-skip-build :
	$(XCRUN) swift run -c release --skip-build \
		swift-format --mode format --recursive --in-place $(SWIFT_FORMAT_PATHS)