refactor(step3): 점수 상수를 모아놓은 클래스 추가

src/main/kotlin/domain/Score.kt

@@ -0,0 +1,6 @@
+package domain
+
+object Score {
+    const val BLACKJACK = 21
+    const val DEALER_HIT_ON_MAX = 16
+}

src/main/kotlin/domain/card/Cards.kt

@@ -1,5 +1,7 @@
 package domain.card
 
+import domain.Score
+
 class Cards(cards: List<Card> = emptyList()) {
 
     private val cards: MutableList<Card> = cards.toMutableList()
@@ -24,7 +26,7 @@ class Cards(cards: List<Card> = emptyList()) {
         }
 
         return sumOfAllCases.filter {
-            it <= BLACKJACK_POINT
+            it <= Score.BLACKJACK
         }.maxOrNull() ?: sumOfAllCases.min()
     }
 
@@ -56,8 +58,6 @@ class Cards(cards: List<Card> = emptyList()) {
     }
 
     companion object {
-        const val BLACKJACK_POINT = 21
-
         fun all(): Cards {
             return Cards(Card.all())
         }

src/main/kotlin/domain/gamer/dealer/Dealer.kt

@@ -1,5 +1,6 @@
 package domain.gamer.dealer
 
+import domain.Score
 import domain.State
 import domain.card.CardDeck
 import domain.card.Cards
@@ -47,14 +48,10 @@ class Dealer(
     private fun newState(): State {
         val result = cards.score()
         return when {
-            result > Cards.BLACKJACK_POINT -> State.Bust
-            result == Cards.BLACKJACK_POINT -> State.BlackJack
-            result > DEALER_MAX_POINT -> State.Stay
+            result > Score.BLACKJACK -> State.Bust
+            result == Score.BLACKJACK -> State.BlackJack
+            result > Score.DEALER_HIT_ON_MAX -> State.Stay
             else -> State.Hit
         }
     }
-
-    companion object {
-        const val DEALER_MAX_POINT = 16
-    }
 }

src/main/kotlin/domain/gamer/player/Player.kt

@@ -1,5 +1,6 @@
 package domain.gamer.player
 
+import domain.Score
 import domain.State
 import domain.card.CardDeck
 import domain.card.Cards
@@ -32,8 +33,8 @@ open class Player(
     private fun newState(): State {
         val result = cards.score()
         return when {
-            result == Cards.BLACKJACK_POINT -> State.BlackJack
-            result < Cards.BLACKJACK_POINT -> State.Hit
+            result == Score.BLACKJACK -> State.BlackJack
+            result < Score.BLACKJACK -> State.Hit
             else -> State.Bust
         }
     }

src/main/kotlin/presentation/ResultView.kt

@@ -1,6 +1,7 @@
 package presentation
 
 import domain.Result
+import domain.Score
 import domain.gamer.Gamer
 import domain.gamer.dealer.Dealer
 import domain.gamer.player.Player
@@ -22,7 +23,7 @@ object ResultView {
     }
 
     fun printDealerReceiveCardMessage() {
-        println("딜러는 ${Dealer.DEALER_MAX_POINT}이하라 한장의 카드를 더 받았습니다.")
+        println("딜러는 ${Score.DEALER_HIT_ON_MAX}이하라 한장의 카드를 더 받았습니다.")
         println()
     }
 

src/test/kotlin/blackjack/StateForTest.kt

@@ -1,24 +1,24 @@
 package blackjack
 
+import domain.Score
 import domain.State
 import domain.card.Cards
-import domain.gamer.dealer.Dealer
 
 fun DealerState(cards: Cards): State {
     val result = cards.score()
     return when {
-        result > Cards.BLACKJACK_POINT -> State.Bust
-        result == Cards.BLACKJACK_POINT -> State.BlackJack
-        result > Dealer.DEALER_MAX_POINT -> State.Stay
+        result > Score.BLACKJACK -> State.Bust
+        result == Score.BLACKJACK -> State.BlackJack
+        result > Score.DEALER_HIT_ON_MAX -> State.Stay
         else -> State.Hit
     }
 }
 
 fun PlayerState(cards: Cards): State {
     val result = cards.score()
     return when {
-        result == Cards.BLACKJACK_POINT -> State.BlackJack
-        result < Cards.BLACKJACK_POINT -> State.Hit
+        result == Score.BLACKJACK -> State.BlackJack
+        result < Score.BLACKJACK -> State.Hit
         else -> State.Bust
     }
 }