johnhammerlund

/// SampleUITestDependencyFactoryIndex.swift

final class SampleUITestDependencyFactoryIndex: DependencyFactoryIndexable {
  let index: [DependencyFactoryKey: (DependencyContainer) -> Any] = SampleUITestDependencyFactoryIndex.makeIndex()

  private static func makeIndex() -> [DependencyFactoryKey: (DependencyContainer) -> Any] {
    let foodServiceFactory: (DependencyContainer) -> Any = { _ in
      let foodServiceStub = MockFoodService(food: MacAndCheese())
      return foodServiceStub
    }

johnhammerlund

import XCUITest
import Relay

final class SampleUITests: XCTestCase {
  
  func testShowsFoodDetailScreen() {
   let app = XCUIApplication()

   let foodLaunchArgument = DependencyInstructionLaunchArgument(type: .foodService, factory: .foodFactoryWithMacAndCheese)
   let drinkLaunchArgument = DependencyInstructionLaunchArgument(type: .drinkService, factory: .drinkFactoryWithAppleJuice)

johnhammerlund

import XCTest

final class KidTests: XCTestCase {
 
  func testConsumesFoodAndDrink() {
    let foodService = MockFoodService(food: macAndCheese)
    let drinkService = MockDrinkService(drink: juice)
    
    let kid = Kid()
    kid.foodService = foodService

johnhammerlund

import Relay

public final class Kid {
  
  @Injected var foodService: FoodService // Injected by DependencyContainer.global
  @Injected var drinkService: DrinkService // Injected by DependencyContainer.global
  
  func eatFood() {
    let food = foodService.fetchFood()
    let drink = drinkService.fetchDrink()

johnhammerlund

public final class Kid {
  
  private let foodService: FoodService
  private let drinkService: DrinkService
  
  init(foodService: FoodService, drinkService: DrinkService) {
    self.foodService = foodService
    self.drinkService = drinkService
  }
  

johnhammerlund

#!/usr/bin/env bash

check_references_corebluetooth() {
  nm "$1" | grep "CBCentralManager" 2>&1 >/dev/null
}

find_usages () {
  app_path=$1
  if [[ ! -d $app_path || ! -d "$app_path/Frameworks" ]]; then
    echo "$app_path is not a valid app directory."

johnhammerlund

#!/usr/bin/env bash
#
# Usage: ./find-uiwebview-usages.sh <path1-to-.app> <path2-to-.app> <...>

check_references_uiwebview() {
  nm "$1" | grep UIWeb 2>&1 >/dev/null
}

find_usages () {
  app_path=$1

johnhammerlund

func registerDependencies() {
  DependencyContainer.global.register(FoodService.self) { _ in
    Pantry()
  }
  DependencyContainer.global.register(FoodService.self) { _ in
    Refridgerator()
  }
}

registerDependencies()

johnhammerlund

/// ❌ Without dependency injection

public final class Kid {
  
  private let fridge = Refridgerator()
  
  func eatLunch() {
    let food = fridge.fetchFood()
    let drink = fridge.fetchDrink() /// POTENTIAL ERROR: Might be expired!
    consume([food, drink])

johnhammerlund

#!/usr/bin/env bash
# Automatically installs swiftenv and run's swiftenv install.
# This script was designed for usage in CI systems.

git clone --depth 1 https://github.com/kylef/swiftenv.git ~/.swiftenv
export SWIFTENV_ROOT="$HOME/.swiftenv"
export PATH="$SWIFTENV_ROOT/bin:$SWIFTENV_ROOT/shims:$PATH"

if [ -f ".swift-version" ] || [ -n "$SWIFT_VERSION" ]; then
  swiftenv install -s