Integrated LetterCase

Package.swift

@@ -13,12 +13,16 @@ let package = Package(
         .package(
             url: "https://github.com/rwbutler/Hash",
             from: "1.4.0"
+        ),
+        .package(
+            url: "https://github.com/rwbutler/LetterCase",
+            from: "1.3.1"
         )
     ],
     targets: [
         .target(
             name: "SwiftQuiz",
-            dependencies: ["Hash"],
+            dependencies: ["Hash", "LetterCase"],
             path: "code"
         )
     ]

code/SwiftQuiz.swift

@@ -137,7 +137,7 @@ public class SwiftQuiz {
             let answersURL = URL(fileURLWithPath: "answers.txt")
             try? submission.description.data(using: .utf8)?.write(to: answersURL)
             if let slackURL = quiz.configuration.markingURL {
-                let messagingService = SlackMessagingService(hookURL: slackURL)
+                let messagingService = QuizServices.messaging(hookURL: slackURL)
                 messagingService.message(submission.description) {
                     self.invokeCallback(with: .quizComplete)
                 }

code/services/QuizServices.swift

@@ -9,12 +9,16 @@ import Foundation
 
 public struct QuizServices {
 
+    public static func accessControl(_ quiz: Quiz) -> AccessControlService {
+        return DefaultAccessControlService(quiz: quiz)
+    }
+
     public static var parsing: ParsingService {
         return CodableParsingService()
     }
 
-    public static func accessControl(_ quiz: Quiz) -> AccessControlService {
-        return DefaultAccessControlService(quiz: quiz)
+    static func messaging(hookURL: URL) -> MessagingService {
+        return SlackMessagingService(hookURL: hookURL)
     }
 
 }

code/services/access-control/implementation/DefaultAccessControlService.swift

@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import LetterCase
 
 class DefaultAccessControlService: AccessControlService {
 

code/services/messaging/definition/MessagingService.swift

@@ -0,0 +1,12 @@
+//
+//  MessagingService.swift
+//  
+//
+//  Created by Ross Butler on 17/08/2020.
+//
+
+import Foundation
+
+protocol MessagingService {
+    func message(_ message: String, completion: @escaping () -> Void)
+}

code/services/SlackMessagingService.swift → code/services/messaging/implementation/SlackMessagingService.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-class SlackMessagingService {
+class SlackMessagingService: MessagingService {
     let hookURL: URL
 
     init(hookURL: URL) {