AppDelegate UnitTests Swift

AppDelegate.swift

// AppDelegate.swift

import UIKit

func isRunningTests() -> Bool {
  let environment = NSProcessInfo.processInfo().environment
  if let injectBundle = environment["XCInjectBundle"] as? NSString {
    return injectBundle.pathExtension == "xctest"
  }
  return false
}

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

  override init() {
    super.init()
    if (isRunningTests()){
      // This bundle has unit tests injected. Let's not really start the app to avoid interfering with the tests.
      let infoDictionary:NSDictionary = NSBundle.mainBundle().infoDictionary!
      infoDictionary.setValue("UnitTests", forKey:"UIMainStoryboardFile")
    }
  }
}