refactor: change name for digital twin test double

Author: AndreaGiulianelli

src/test/kotlin/application/service/ServiceTest.kt

@@ -13,18 +13,18 @@ import entity.zone.Room
 import entity.zone.RoomID
 import entity.zone.RoomType
 import entity.zone.ZoneID
-import infrastructure.digitaltwins.DigitalTwinManagerStub
+import infrastructure.digitaltwins.DigitalTwinManagerTestDouble
 import io.kotest.core.spec.style.StringSpec
 import io.kotest.matchers.shouldBe
 import io.kotest.matchers.shouldNotBe
 
 class ServiceTest : StringSpec({
-    var roomController = RoomController(DigitalTwinManagerStub())
+    var roomController = RoomController(DigitalTwinManagerTestDouble())
     val exampleRoom = Room(RoomID("r1"), RoomType.OPERATING_ROOM, ZoneID("z1"))
 
     beforeEach {
         // Re-initalize the digital twin manager stub.
-        roomController = RoomController(DigitalTwinManagerStub())
+        roomController = RoomController(DigitalTwinManagerTestDouble())
     }
 
     "I should be able to create a room" {

src/test/kotlin/infrastructure/digitaltwins/DigitalTwinManagerStub.kt renamed to src/test/kotlin/infrastructure/digitaltwins/DigitalTwinManagerTestDouble.kt

@@ -13,9 +13,9 @@ import entity.zone.Room
 import entity.zone.RoomID
 
 /**
- * Simple Stub for [RoomDigitalTwinManager] in order to perform tests.
+ * Simple Test Double (fake) for [RoomDigitalTwinManager] in order to perform tests.
  */
-class DigitalTwinManagerStub : RoomDigitalTwinManager {
+class DigitalTwinManagerTestDouble : RoomDigitalTwinManager {
     private val roomList: MutableSet<Room> = mutableSetOf()
 
     override fun createRoomDigitalTwin(room: Room): Boolean {