Update refactored sample code for 依存性の注入によるリファクタリング

src/example_projects/trait-refactored-example/src/main/scala/domain/UserService.scala

@@ -1,10 +1,16 @@
 package domain
 
 trait UserService {
-  self: PasswordService with UserRepository =>
 
   val maxNameLength = 32
 
+  def register(name: String, rawPassword: String): User
+
+  def login(name: String, rawPassword: String): User
+
+}
+
+class UserServiceImpl extends UserService { self: UserRepository with PasswordService =>
   def register(name: String, rawPassword: String): User = {
     if (name.length > maxNameLength) {
       throw new Exception("Too long name!")
@@ -26,5 +32,3 @@ trait UserService {
     }
   }
 }
-
-class UserServiceImpl extends UserService with PasswordServiceImpl with UserRepositoryImpl

src/example_projects/trait-refactored-example/src/test/scala/domain/UserServiceSpec.scala

@@ -6,7 +6,7 @@ import org.scalatest.wordspec.AnyWordSpec
 class UserServiceSpec extends AnyWordSpec {
   val user = User(1, "test_name", "test_password")
 
-  val sut = new UserService with PasswordServiceImpl with UserRepository {
+  val sut = new UserServiceImpl with PasswordServiceImpl with UserRepository {
     def find(id: Long): Option[domain.User] = Some(user)
     def find(name: String): Option[domain.User] = Some(user)
     def insert(user: domain.User): domain.User = user