From 86ddf10571c2937fc85b81ec04f14978b3cb0c64 Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Wed, 17 Sep 2025 00:32:54 +0900
Subject: [PATCH 1/8] =?UTF-8?q?feat:=203=EB=8B=A8=EA=B3=84=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/Car.java     |  4 ++-
 src/main/java/io/suhan/racingcar/Game.java    | 19 +++++++++--
 src/main/java/io/suhan/racingcar/Main.java    | 32 +++++++++++++++++++
 src/test/java/io/suhan/racingcar/CarTest.java |  8 +++++
 .../java/io/suhan/racingcar/GameTest.java     |  2 +-
 5 files changed, 61 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/io/suhan/racingcar/Main.java

diff --git a/src/main/java/io/suhan/racingcar/Car.java b/src/main/java/io/suhan/racingcar/Car.java
index f4e2d848..6529325a 100644
--- a/src/main/java/io/suhan/racingcar/Car.java
+++ b/src/main/java/io/suhan/racingcar/Car.java
@@ -5,6 +5,7 @@
 
 public class Car {
     private static final int CAR_MOVE_THRESHOLD = 4;
+    private static final int CAR_NAME_MAXIMUM_LENGTH = 5;
 
     private final String name;
     private final NumberGenerator generator;
@@ -17,10 +18,11 @@ private Car(String name, NumberGenerator generator) {
     }
 
     public static Car of(String name) {
-        return new Car(name, new RandomNumberGenerator());
+        return Car.of(name, new RandomNumberGenerator());
     }
 
     public static Car of(String name, NumberGenerator generator) {
+        if (name.length() > CAR_NAME_MAXIMUM_LENGTH) throw new IllegalArgumentException("Car name length must be shorter than " + CAR_NAME_MAXIMUM_LENGTH);
         return new Car(name, generator);
     }
 
diff --git a/src/main/java/io/suhan/racingcar/Game.java b/src/main/java/io/suhan/racingcar/Game.java
index e7f828c3..b78a0be4 100644
--- a/src/main/java/io/suhan/racingcar/Game.java
+++ b/src/main/java/io/suhan/racingcar/Game.java
@@ -1,6 +1,7 @@
 package io.suhan.racingcar;
 
 import java.util.List;
+import java.util.stream.Collectors;
 
 public class Game {
     private final CarRegistry carRegistry;
@@ -19,11 +20,17 @@ public static Game of(int rounds) {
         return new Game(rounds);
     }
 
-    public void start() {
+    public void execute() {
+        System.out.println("\n실행 결과");
         for (int i = 0; i < this.rounds; i++) {
             carRegistry.moveCars();
+            carRegistry.getRegisteredCars().forEach(this::printCurrentPosition);
+            System.out.println();
         }
-        // TODO: 우승자 출력
+
+        List<Car> winners = getWinners();
+
+        System.out.println(winners.stream().map(Car::getName).collect(Collectors.joining(", ")) + "가 최종 우승했습니다.");
     }
 
     public List<Car> getWinners() {
@@ -38,4 +45,12 @@ public List<Car> getWinners() {
     public CarRegistry getCarRegistry() {
         return carRegistry;
     }
+
+    private void printCurrentPosition(Car car) {
+        System.out.println(car.getName() + " : " + buildProgressBar(car.getPosition()));
+    }
+
+    private String buildProgressBar(int value) {
+        return "-".repeat(Math.max(0, value));
+    }
 }
diff --git a/src/main/java/io/suhan/racingcar/Main.java b/src/main/java/io/suhan/racingcar/Main.java
new file mode 100644
index 00000000..c08144eb
--- /dev/null
+++ b/src/main/java/io/suhan/racingcar/Main.java
@@ -0,0 +1,32 @@
+package io.suhan.racingcar;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분).");
+        String nameInput = scanner.next();
+
+
+        System.out.println("시도할 회수는 몇회인가요?");
+        int count = scanner.nextInt();
+
+        List<String> names = extractCarNames(nameInput);
+        Game game = Game.of(count);
+
+        for (String name : names) {
+            Car car = Car.of(name);
+            game.getCarRegistry().register(car);
+        }
+
+        game.execute();
+    }
+
+    private static List<String> extractCarNames(String input) {
+        return Arrays.stream(input.split(",")).toList();
+    }
+}
diff --git a/src/test/java/io/suhan/racingcar/CarTest.java b/src/test/java/io/suhan/racingcar/CarTest.java
index 2f82e606..4a9d4d1f 100644
--- a/src/test/java/io/suhan/racingcar/CarTest.java
+++ b/src/test/java/io/suhan/racingcar/CarTest.java
@@ -2,6 +2,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import io.suhan.racingcar.generator.FixedNumberGenerator;
 import org.junit.jupiter.api.DisplayNameGeneration;
@@ -43,4 +44,11 @@ public class CarTest {
 
         assertEquals(0, position);
     }
+
+    @Test
+    void 자동차의_이름은_5자_이하만_가능하다() {
+        assertThrows(IllegalArgumentException.class, () -> {
+            Car car = Car.of("123456");
+        });
+    }
 }
diff --git a/src/test/java/io/suhan/racingcar/GameTest.java b/src/test/java/io/suhan/racingcar/GameTest.java
index c0f7d0d2..0a09f52f 100644
--- a/src/test/java/io/suhan/racingcar/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/GameTest.java
@@ -47,7 +47,7 @@ public class GameTest {
         List<String> expectedNames = List.of("neo", "brown");
 
         // when
-        game.start();
+        game.execute();
         List<String> winnerNames = game.getWinners().stream().map(Car::getName).toList();
 
         // then

From d37e4ef387fe3229fc777e772020f4527b9f6985 Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Wed, 17 Sep 2025 02:27:52 +0900
Subject: [PATCH 2/8] =?UTF-8?q?feat:=204=EB=8B=A8=EA=B3=84=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/Main.java    | 32 ++++++----------
 .../io/suhan/racingcar/{ => domain}/Car.java  |  7 +++-
 .../racingcar/{ => domain}/CarRegistry.java   |  2 +-
 .../io/suhan/racingcar/{ => domain}/Game.java | 37 ++++++++++---------
 .../suhan/racingcar/domain/RoundResult.java   | 19 ++++++++++
 .../io/suhan/racingcar/view/InputView.java    | 22 +++++++++++
 .../io/suhan/racingcar/view/ResultView.java   | 30 +++++++++++++++
 .../suhan/racingcar/{ => domain}/CarTest.java |  6 +--
 .../racingcar/{ => domain}/GameTest.java      |  2 +-
 9 files changed, 112 insertions(+), 45 deletions(-)
 rename src/main/java/io/suhan/racingcar/{ => domain}/Car.java (81%)
 rename src/main/java/io/suhan/racingcar/{ => domain}/CarRegistry.java (95%)
 rename src/main/java/io/suhan/racingcar/{ => domain}/Game.java (50%)
 create mode 100644 src/main/java/io/suhan/racingcar/domain/RoundResult.java
 create mode 100644 src/main/java/io/suhan/racingcar/view/InputView.java
 create mode 100644 src/main/java/io/suhan/racingcar/view/ResultView.java
 rename src/test/java/io/suhan/racingcar/{ => domain}/CarTest.java (90%)
 rename src/test/java/io/suhan/racingcar/{ => domain}/GameTest.java (98%)

diff --git a/src/main/java/io/suhan/racingcar/Main.java b/src/main/java/io/suhan/racingcar/Main.java
index c08144eb..f6458968 100644
--- a/src/main/java/io/suhan/racingcar/Main.java
+++ b/src/main/java/io/suhan/racingcar/Main.java
@@ -1,32 +1,24 @@
 package io.suhan.racingcar;
 
-import java.util.Arrays;
+import io.suhan.racingcar.domain.Car;
+import io.suhan.racingcar.domain.Game;
+import io.suhan.racingcar.domain.RoundResult;
+import io.suhan.racingcar.view.InputView;
+import io.suhan.racingcar.view.ResultView;
 import java.util.List;
-import java.util.Scanner;
 
 public class Main {
     public static void main(String[] args) {
-        Scanner scanner = new Scanner(System.in);
+        List<String> names = InputView.getCarNames();
+        int count = InputView.getTrialsCount();
 
-        System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분).");
-        String nameInput = scanner.next();
-
-
-        System.out.println("시도할 회수는 몇회인가요?");
-        int count = scanner.nextInt();
-
-        List<String> names = extractCarNames(nameInput);
         Game game = Game.of(count);
+        game.registerCars(names);
 
-        for (String name : names) {
-            Car car = Car.of(name);
-            game.getCarRegistry().register(car);
-        }
-
-        game.execute();
-    }
+        List<RoundResult> results = game.execute();
+        List<Car> winners = game.getWinners();
 
-    private static List<String> extractCarNames(String input) {
-        return Arrays.stream(input.split(",")).toList();
+        ResultView.printExecutionResult(results);
+        ResultView.printWinners(winners);
     }
 }
diff --git a/src/main/java/io/suhan/racingcar/Car.java b/src/main/java/io/suhan/racingcar/domain/Car.java
similarity index 81%
rename from src/main/java/io/suhan/racingcar/Car.java
rename to src/main/java/io/suhan/racingcar/domain/Car.java
index 6529325a..175d77e4 100644
--- a/src/main/java/io/suhan/racingcar/Car.java
+++ b/src/main/java/io/suhan/racingcar/domain/Car.java
@@ -1,4 +1,4 @@
-package io.suhan.racingcar;
+package io.suhan.racingcar.domain;
 
 import io.suhan.racingcar.generator.NumberGenerator;
 import io.suhan.racingcar.generator.RandomNumberGenerator;
@@ -22,7 +22,10 @@ public static Car of(String name) {
     }
 
     public static Car of(String name, NumberGenerator generator) {
-        if (name.length() > CAR_NAME_MAXIMUM_LENGTH) throw new IllegalArgumentException("Car name length must be shorter than " + CAR_NAME_MAXIMUM_LENGTH);
+        if (name.length() > CAR_NAME_MAXIMUM_LENGTH) {
+            throw new IllegalArgumentException("자동차의 이름은 " + CAR_NAME_MAXIMUM_LENGTH + "자 이하만 가능합니다.");
+        }
+
         return new Car(name, generator);
     }
 
diff --git a/src/main/java/io/suhan/racingcar/CarRegistry.java b/src/main/java/io/suhan/racingcar/domain/CarRegistry.java
similarity index 95%
rename from src/main/java/io/suhan/racingcar/CarRegistry.java
rename to src/main/java/io/suhan/racingcar/domain/CarRegistry.java
index 2f01a054..84a80c71 100644
--- a/src/main/java/io/suhan/racingcar/CarRegistry.java
+++ b/src/main/java/io/suhan/racingcar/domain/CarRegistry.java
@@ -1,4 +1,4 @@
-package io.suhan.racingcar;
+package io.suhan.racingcar.domain;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/io/suhan/racingcar/Game.java b/src/main/java/io/suhan/racingcar/domain/Game.java
similarity index 50%
rename from src/main/java/io/suhan/racingcar/Game.java
rename to src/main/java/io/suhan/racingcar/domain/Game.java
index b78a0be4..2b166206 100644
--- a/src/main/java/io/suhan/racingcar/Game.java
+++ b/src/main/java/io/suhan/racingcar/domain/Game.java
@@ -1,9 +1,11 @@
-package io.suhan.racingcar;
+package io.suhan.racingcar.domain;
 
+import java.util.ArrayList;
 import java.util.List;
-import java.util.stream.Collectors;
 
 public class Game {
+    private static final int GAME_ROUNDS_MINIMUM = 1;
+
     private final CarRegistry carRegistry;
     private final int rounds;
 
@@ -13,24 +15,26 @@ private Game(int rounds) {
     }
 
     public static Game of() {
-        return new Game(0);
+        return Game.of(1);
     }
 
     public static Game of(int rounds) {
+        if (rounds < GAME_ROUNDS_MINIMUM) {
+            throw new IllegalArgumentException("시도 회수는 " + GAME_ROUNDS_MINIMUM + " 이상이어야 합니다.");
+        }
+
         return new Game(rounds);
     }
 
-    public void execute() {
-        System.out.println("\n실행 결과");
-        for (int i = 0; i < this.rounds; i++) {
+    public List<RoundResult> execute() {
+        List<RoundResult> results = new ArrayList<>();
+
+        for (int i = 0; i < rounds; i++) {
             carRegistry.moveCars();
-            carRegistry.getRegisteredCars().forEach(this::printCurrentPosition);
-            System.out.println();
+            results.add(RoundResult.of(carRegistry.getRegisteredCars()));
         }
 
-        List<Car> winners = getWinners();
-
-        System.out.println(winners.stream().map(Car::getName).collect(Collectors.joining(", ")) + "가 최종 우승했습니다.");
+        return results;
     }
 
     public List<Car> getWinners() {
@@ -46,11 +50,10 @@ public CarRegistry getCarRegistry() {
         return carRegistry;
     }
 
-    private void printCurrentPosition(Car car) {
-        System.out.println(car.getName() + " : " + buildProgressBar(car.getPosition()));
-    }
-
-    private String buildProgressBar(int value) {
-        return "-".repeat(Math.max(0, value));
+    public void registerCars(List<String> names) {
+        for (String name : names) {
+            Car car = Car.of(name);
+            carRegistry.register(car);
+        }
     }
 }
diff --git a/src/main/java/io/suhan/racingcar/domain/RoundResult.java b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
new file mode 100644
index 00000000..4058ce24
--- /dev/null
+++ b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
@@ -0,0 +1,19 @@
+package io.suhan.racingcar.domain;
+
+import java.util.List;
+
+public class RoundResult {
+    private final List<Car> cars;
+
+    private RoundResult(List<Car> cars) {
+        this.cars = cars;
+    }
+
+    public static RoundResult of(List<Car> cars) {
+        return new RoundResult(cars);
+    }
+
+    public List<Car> getCars() {
+        return cars;
+    }
+}
diff --git a/src/main/java/io/suhan/racingcar/view/InputView.java b/src/main/java/io/suhan/racingcar/view/InputView.java
new file mode 100644
index 00000000..c2f96dfb
--- /dev/null
+++ b/src/main/java/io/suhan/racingcar/view/InputView.java
@@ -0,0 +1,22 @@
+package io.suhan.racingcar.view;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Scanner;
+
+public class InputView {
+    private static final Scanner scanner = new Scanner(System.in);
+
+    public static List<String> getCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분).");
+        String input = scanner.next();
+
+        return Arrays.stream(input.split(",")).toList();
+    }
+
+    public static int getTrialsCount() {
+        System.out.println("시도할 회수는 몇회인가요?");
+
+        return scanner.nextInt();
+    }
+}
diff --git a/src/main/java/io/suhan/racingcar/view/ResultView.java b/src/main/java/io/suhan/racingcar/view/ResultView.java
new file mode 100644
index 00000000..626bc568
--- /dev/null
+++ b/src/main/java/io/suhan/racingcar/view/ResultView.java
@@ -0,0 +1,30 @@
+package io.suhan.racingcar.view;
+
+import io.suhan.racingcar.domain.Car;
+import io.suhan.racingcar.domain.RoundResult;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class ResultView {
+    public static void printExecutionResult(List<RoundResult> results) {
+        System.out.println("\n실행 결과");
+        results.forEach((result) -> printRoundResult(result.getCars()));
+    }
+
+    private static void printRoundResult(List<Car> cars) {
+        cars.forEach(ResultView::printCurrentPosition);
+        System.out.println(); // newline
+    }
+
+    public static void printWinners(List<Car> winners) {
+        System.out.println(winners.stream().map(Car::getName).collect(Collectors.joining(", ")) + "가 최종 우승했습니다.");
+    }
+
+    private static void printCurrentPosition(Car car) {
+        System.out.println(car.getName() + " : " + buildProgressBar(car.getPosition()));
+    }
+
+    private static String buildProgressBar(int value) {
+        return "-".repeat(Math.max(0, value));
+    }
+}
diff --git a/src/test/java/io/suhan/racingcar/CarTest.java b/src/test/java/io/suhan/racingcar/domain/CarTest.java
similarity index 90%
rename from src/test/java/io/suhan/racingcar/CarTest.java
rename to src/test/java/io/suhan/racingcar/domain/CarTest.java
index 4a9d4d1f..3c6e0e48 100644
--- a/src/test/java/io/suhan/racingcar/CarTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/CarTest.java
@@ -1,4 +1,4 @@
-package io.suhan.racingcar;
+package io.suhan.racingcar.domain;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
@@ -47,8 +47,6 @@ public class CarTest {
 
     @Test
     void 자동차의_이름은_5자_이하만_가능하다() {
-        assertThrows(IllegalArgumentException.class, () -> {
-            Car car = Car.of("123456");
-        });
+        assertThrows(IllegalArgumentException.class, () -> Car.of("123456"));
     }
 }
diff --git a/src/test/java/io/suhan/racingcar/GameTest.java b/src/test/java/io/suhan/racingcar/domain/GameTest.java
similarity index 98%
rename from src/test/java/io/suhan/racingcar/GameTest.java
rename to src/test/java/io/suhan/racingcar/domain/GameTest.java
index 0a09f52f..c048dcb9 100644
--- a/src/test/java/io/suhan/racingcar/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/GameTest.java
@@ -1,4 +1,4 @@
-package io.suhan.racingcar;
+package io.suhan.racingcar.domain;
 
 import static org.junit.jupiter.api.Assertions.assertIterableEquals;
 

From 654d8d95d411ab6ddd992504896136d1d7d3fa99 Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Wed, 17 Sep 2025 14:22:03 +0900
Subject: [PATCH 3/8] =?UTF-8?q?test:=20=EC=8B=9C=EB=8F=84=20=ED=9A=9F?=
 =?UTF-8?q?=EC=88=98=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/test/java/io/suhan/racingcar/domain/GameTest.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/test/java/io/suhan/racingcar/domain/GameTest.java b/src/test/java/io/suhan/racingcar/domain/GameTest.java
index c048dcb9..ba87ff65 100644
--- a/src/test/java/io/suhan/racingcar/domain/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/GameTest.java
@@ -1,6 +1,7 @@
 package io.suhan.racingcar.domain;
 
 import static org.junit.jupiter.api.Assertions.assertIterableEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import io.suhan.racingcar.generator.FixedNumberGenerator;
 import java.util.List;
@@ -53,4 +54,9 @@ public class GameTest {
         // then
         assertIterableEquals(expectedNames, winnerNames);
     }
+
+    @Test
+    void 시도_횟수는_1_이상만_가능하다() {
+        assertThrows(IllegalArgumentException.class, () -> Game.of(0));
+    }
 }

From 051622b3a2d5e575cf3d4be1e7ce8c5046ba9d69 Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Wed, 17 Sep 2025 16:16:06 +0900
Subject: [PATCH 4/8] =?UTF-8?q?chore:=20README.md=20=EB=82=B4=20=ED=94=84?=
 =?UTF-8?q?=EB=A1=9C=EC=A0=9D=ED=8A=B8=20=EA=B5=AC=EC=A1=B0=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 9afa7d38..dff5e7fd 100644
--- a/README.md
+++ b/README.md
@@ -8,13 +8,18 @@
 
 ## 프로젝트 구조
 ```
+- domain/
+ - Car.java : 자동차 객체 및 관련 메소드 정의
+ - CarRegistry.java : 자동차 목록 관리
+ - Game.java : 전반적인 게임 실행 담당
+ - RoundResult.java : 게임 결과를 담는 객체
 - generator/
-  - NumberGenerator.java : 숫자 생성기 Interface 정의
-  - FixedNumberGenerator.java : 고정 숫자 생성기
-  - RandomNumberGenerator.java : 랜덤 숫자 생성기
-- Car.java : 자동차 객체 정의
-- CarRegistry.java : 자동차 목록 관리
-- Game.java : 전반적인 게임 실행 담당
+ - NumberGenerator.java : 숫자 생성기 Interface 정의
+ - RandomNumberGenerator.java : 랜덤 숫자 생성기
+- view/
+ - InputView.java : 사용자로부터 입력 받는 기능 수행
+ - ResultView.java : 사용자에게 출력 하는 기능 수행
+- Main.java  : Main Entrypoint
 ```
 
 ## 시작하기

From 2be8939daf5a6d06548a797ca4fa3afe042cb1a2 Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Mon, 22 Sep 2025 17:17:51 +0900
Subject: [PATCH 5/8] =?UTF-8?q?refactor:=20Game,=20CarRegistry=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EB=B6=84=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/Main.java    |  2 +-
 .../{CarRegistry.java => CarManager.java}     | 24 +++++++++++++---
 .../java/io/suhan/racingcar/domain/Game.java  | 28 ++++++-------------
 .../io/suhan/racingcar/domain/GameTest.java   | 14 ++++------
 4 files changed, 34 insertions(+), 34 deletions(-)
 rename src/main/java/io/suhan/racingcar/domain/{CarRegistry.java => CarManager.java} (52%)

diff --git a/src/main/java/io/suhan/racingcar/Main.java b/src/main/java/io/suhan/racingcar/Main.java
index f6458968..d4096a49 100644
--- a/src/main/java/io/suhan/racingcar/Main.java
+++ b/src/main/java/io/suhan/racingcar/Main.java
@@ -13,7 +13,7 @@ public static void main(String[] args) {
         int count = InputView.getTrialsCount();
 
         Game game = Game.of(count);
-        game.registerCars(names);
+        game.getCarManager().registerCars(names);
 
         List<RoundResult> results = game.execute();
         List<Car> winners = game.getWinners();
diff --git a/src/main/java/io/suhan/racingcar/domain/CarRegistry.java b/src/main/java/io/suhan/racingcar/domain/CarManager.java
similarity index 52%
rename from src/main/java/io/suhan/racingcar/domain/CarRegistry.java
rename to src/main/java/io/suhan/racingcar/domain/CarManager.java
index 84a80c71..ecee01fe 100644
--- a/src/main/java/io/suhan/racingcar/domain/CarRegistry.java
+++ b/src/main/java/io/suhan/racingcar/domain/CarManager.java
@@ -3,15 +3,15 @@
 import java.util.ArrayList;
 import java.util.List;
 
-public class CarRegistry {
+public class CarManager {
     private final List<Car> cars;
 
-    private CarRegistry() {
+    private CarManager() {
         this.cars = new ArrayList<>();
     }
 
-    public static CarRegistry of() {
-        return new CarRegistry();
+    public static CarManager of() {
+        return new CarManager();
     }
 
     public void register(Car car) {
@@ -28,6 +28,22 @@ public void moveCars() {
         }
     }
 
+    public void registerCars(List<String> names) {
+        for (String name : names) {
+            Car car = Car.of(name);
+            cars.add(car);
+        }
+    }
+
+    public List<Car> getCarsWithBestPosition() {
+        int bestPosition = getBestPosition();
+
+        return getRegisteredCars()
+                .stream()
+                .filter((car) -> car.getPosition() == bestPosition)
+                .toList();
+    }
+
     public int getBestPosition() {
         return cars
                 .stream()
diff --git a/src/main/java/io/suhan/racingcar/domain/Game.java b/src/main/java/io/suhan/racingcar/domain/Game.java
index 2b166206..d3f12339 100644
--- a/src/main/java/io/suhan/racingcar/domain/Game.java
+++ b/src/main/java/io/suhan/racingcar/domain/Game.java
@@ -6,11 +6,11 @@
 public class Game {
     private static final int GAME_ROUNDS_MINIMUM = 1;
 
-    private final CarRegistry carRegistry;
+    private final CarManager carManager;
     private final int rounds;
 
     private Game(int rounds) {
-        this.carRegistry = CarRegistry.of();
+        this.carManager = CarManager.of();
         this.rounds = rounds;
     }
 
@@ -20,7 +20,7 @@ public static Game of() {
 
     public static Game of(int rounds) {
         if (rounds < GAME_ROUNDS_MINIMUM) {
-            throw new IllegalArgumentException("시도 회수는 " + GAME_ROUNDS_MINIMUM + " 이상이어야 합니다.");
+            throw new IllegalArgumentException("시도 횟수는 " + GAME_ROUNDS_MINIMUM + " 이상이어야 합니다.");
         }
 
         return new Game(rounds);
@@ -30,30 +30,18 @@ public List<RoundResult> execute() {
         List<RoundResult> results = new ArrayList<>();
 
         for (int i = 0; i < rounds; i++) {
-            carRegistry.moveCars();
-            results.add(RoundResult.of(carRegistry.getRegisteredCars()));
+            carManager.moveCars();
+            results.add(RoundResult.of(carManager.getRegisteredCars()));
         }
 
         return results;
     }
 
     public List<Car> getWinners() {
-        int bestPosition = carRegistry.getBestPosition();
-
-        return carRegistry.getRegisteredCars()
-                .stream()
-                .filter((car) -> car.getPosition() == bestPosition)
-                .toList();
-    }
-
-    public CarRegistry getCarRegistry() {
-        return carRegistry;
+        return carManager.getCarsWithBestPosition();
     }
 
-    public void registerCars(List<String> names) {
-        for (String name : names) {
-            Car car = Car.of(name);
-            carRegistry.register(car);
-        }
+    public CarManager getCarManager() {
+        return carManager;
     }
 }
diff --git a/src/test/java/io/suhan/racingcar/domain/GameTest.java b/src/test/java/io/suhan/racingcar/domain/GameTest.java
index ba87ff65..0b41b36c 100644
--- a/src/test/java/io/suhan/racingcar/domain/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/GameTest.java
@@ -18,13 +18,9 @@ public class GameTest {
 
         Game game = Game.of();
 
-        for (String name : names) {
-            Car car = Car.of(name);
+        game.getCarManager().registerCars(names);
 
-            game.getCarRegistry().register(car);
-        }
-
-        List<String> registeredNames = game.getCarRegistry().getRegisteredCars().stream().map(Car::getName).toList();
+        List<String> registeredNames = game.getCarManager().getRegisteredCars().stream().map(Car::getName).toList();
 
         assertIterableEquals(names, registeredNames);
     }
@@ -41,9 +37,9 @@ public class GameTest {
         Car brie = Car.of("brie", stopGenerator);
         Car brown = Car.of("brown", forwardGenerator);
 
-        game.getCarRegistry().register(neo);
-        game.getCarRegistry().register(brie);
-        game.getCarRegistry().register(brown);
+        game.getCarManager().register(neo);
+        game.getCarManager().register(brie);
+        game.getCarManager().register(brown);
 
         List<String> expectedNames = List.of("neo", "brown");
 

From f4e759e9ee758dfc0a2aa2d660619ce66d01319d Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Mon, 22 Sep 2025 18:19:44 +0900
Subject: [PATCH 6/8] =?UTF-8?q?fix:=20RoundResult=EA=B0=92=EC=9D=B4=20?=
 =?UTF-8?q?=EA=B3=A0=EC=A0=95=EB=90=98=EB=8A=94=20=EB=AC=B8=EC=A0=9C=20?=
 =?UTF-8?q?=ED=95=B4=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/domain/Car.java         | 7 +++++++
 src/main/java/io/suhan/racingcar/domain/Game.java        | 3 ++-
 src/main/java/io/suhan/racingcar/domain/RoundResult.java | 5 ++++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/main/java/io/suhan/racingcar/domain/Car.java b/src/main/java/io/suhan/racingcar/domain/Car.java
index 175d77e4..46ae78f5 100644
--- a/src/main/java/io/suhan/racingcar/domain/Car.java
+++ b/src/main/java/io/suhan/racingcar/domain/Car.java
@@ -48,4 +48,11 @@ public String getName() {
     public int getPosition() {
         return position;
     }
+
+    public Car copy() {
+        Car copy = Car.of(this.name, this.generator);
+        copy.position = this.position;
+
+        return copy;
+    }
 }
diff --git a/src/main/java/io/suhan/racingcar/domain/Game.java b/src/main/java/io/suhan/racingcar/domain/Game.java
index d3f12339..36e4133e 100644
--- a/src/main/java/io/suhan/racingcar/domain/Game.java
+++ b/src/main/java/io/suhan/racingcar/domain/Game.java
@@ -31,7 +31,8 @@ public List<RoundResult> execute() {
 
         for (int i = 0; i < rounds; i++) {
             carManager.moveCars();
-            results.add(RoundResult.of(carManager.getRegisteredCars()));
+            RoundResult result = RoundResult.of(carManager.getRegisteredCars());
+            results.add(result);
         }
 
         return results;
diff --git a/src/main/java/io/suhan/racingcar/domain/RoundResult.java b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
index 4058ce24..3e07585e 100644
--- a/src/main/java/io/suhan/racingcar/domain/RoundResult.java
+++ b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
@@ -1,6 +1,7 @@
 package io.suhan.racingcar.domain;
 
 import java.util.List;
+import java.util.stream.Collectors;
 
 public class RoundResult {
     private final List<Car> cars;
@@ -10,7 +11,9 @@ private RoundResult(List<Car> cars) {
     }
 
     public static RoundResult of(List<Car> cars) {
-        return new RoundResult(cars);
+        List<Car> copied = cars.stream().map(Car::copy).collect(Collectors.toList());
+        
+        return new RoundResult(copied);
     }
 
     public List<Car> getCars() {

From 29333723b3d65b2b7696aaeb9305f71f313736fa Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Mon, 22 Sep 2025 18:26:40 +0900
Subject: [PATCH 7/8] =?UTF-8?q?refactor:=20CarManager=20=EB=84=A4=EC=9D=B4?=
 =?UTF-8?q?=EB=B0=8D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/Main.java         |  2 +-
 .../domain/{CarManager.java => CarRegistry.java}   |  8 ++++----
 src/main/java/io/suhan/racingcar/domain/Game.java  | 14 +++++++-------
 .../io/suhan/racingcar/domain/RoundResult.java     |  2 +-
 .../java/io/suhan/racingcar/domain/GameTest.java   | 10 +++++-----
 5 files changed, 18 insertions(+), 18 deletions(-)
 rename src/main/java/io/suhan/racingcar/domain/{CarManager.java => CarRegistry.java} (89%)

diff --git a/src/main/java/io/suhan/racingcar/Main.java b/src/main/java/io/suhan/racingcar/Main.java
index d4096a49..4417e1c9 100644
--- a/src/main/java/io/suhan/racingcar/Main.java
+++ b/src/main/java/io/suhan/racingcar/Main.java
@@ -13,7 +13,7 @@ public static void main(String[] args) {
         int count = InputView.getTrialsCount();
 
         Game game = Game.of(count);
-        game.getCarManager().registerCars(names);
+        game.getCarRegistry().registerCars(names);
 
         List<RoundResult> results = game.execute();
         List<Car> winners = game.getWinners();
diff --git a/src/main/java/io/suhan/racingcar/domain/CarManager.java b/src/main/java/io/suhan/racingcar/domain/CarRegistry.java
similarity index 89%
rename from src/main/java/io/suhan/racingcar/domain/CarManager.java
rename to src/main/java/io/suhan/racingcar/domain/CarRegistry.java
index ecee01fe..06f9774d 100644
--- a/src/main/java/io/suhan/racingcar/domain/CarManager.java
+++ b/src/main/java/io/suhan/racingcar/domain/CarRegistry.java
@@ -3,15 +3,15 @@
 import java.util.ArrayList;
 import java.util.List;
 
-public class CarManager {
+public class CarRegistry {
     private final List<Car> cars;
 
-    private CarManager() {
+    private CarRegistry() {
         this.cars = new ArrayList<>();
     }
 
-    public static CarManager of() {
-        return new CarManager();
+    public static CarRegistry of() {
+        return new CarRegistry();
     }
 
     public void register(Car car) {
diff --git a/src/main/java/io/suhan/racingcar/domain/Game.java b/src/main/java/io/suhan/racingcar/domain/Game.java
index 36e4133e..9fde4d31 100644
--- a/src/main/java/io/suhan/racingcar/domain/Game.java
+++ b/src/main/java/io/suhan/racingcar/domain/Game.java
@@ -6,11 +6,11 @@
 public class Game {
     private static final int GAME_ROUNDS_MINIMUM = 1;
 
-    private final CarManager carManager;
+    private final CarRegistry carRegistry;
     private final int rounds;
 
     private Game(int rounds) {
-        this.carManager = CarManager.of();
+        this.carRegistry = CarRegistry.of();
         this.rounds = rounds;
     }
 
@@ -30,8 +30,8 @@ public List<RoundResult> execute() {
         List<RoundResult> results = new ArrayList<>();
 
         for (int i = 0; i < rounds; i++) {
-            carManager.moveCars();
-            RoundResult result = RoundResult.of(carManager.getRegisteredCars());
+            carRegistry.moveCars();
+            RoundResult result = RoundResult.of(carRegistry.getRegisteredCars());
             results.add(result);
         }
 
@@ -39,10 +39,10 @@ public List<RoundResult> execute() {
     }
 
     public List<Car> getWinners() {
-        return carManager.getCarsWithBestPosition();
+        return carRegistry.getCarsWithBestPosition();
     }
 
-    public CarManager getCarManager() {
-        return carManager;
+    public CarRegistry getCarRegistry() {
+        return carRegistry;
     }
 }
diff --git a/src/main/java/io/suhan/racingcar/domain/RoundResult.java b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
index 3e07585e..fd7256fc 100644
--- a/src/main/java/io/suhan/racingcar/domain/RoundResult.java
+++ b/src/main/java/io/suhan/racingcar/domain/RoundResult.java
@@ -12,7 +12,7 @@ private RoundResult(List<Car> cars) {
 
     public static RoundResult of(List<Car> cars) {
         List<Car> copied = cars.stream().map(Car::copy).collect(Collectors.toList());
-        
+
         return new RoundResult(copied);
     }
 
diff --git a/src/test/java/io/suhan/racingcar/domain/GameTest.java b/src/test/java/io/suhan/racingcar/domain/GameTest.java
index 0b41b36c..f7411b0a 100644
--- a/src/test/java/io/suhan/racingcar/domain/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/GameTest.java
@@ -18,9 +18,9 @@ public class GameTest {
 
         Game game = Game.of();
 
-        game.getCarManager().registerCars(names);
+        game.getCarRegistry().registerCars(names);
 
-        List<String> registeredNames = game.getCarManager().getRegisteredCars().stream().map(Car::getName).toList();
+        List<String> registeredNames = game.getCarRegistry().getRegisteredCars().stream().map(Car::getName).toList();
 
         assertIterableEquals(names, registeredNames);
     }
@@ -37,9 +37,9 @@ public class GameTest {
         Car brie = Car.of("brie", stopGenerator);
         Car brown = Car.of("brown", forwardGenerator);
 
-        game.getCarManager().register(neo);
-        game.getCarManager().register(brie);
-        game.getCarManager().register(brown);
+        game.getCarRegistry().register(neo);
+        game.getCarRegistry().register(brie);
+        game.getCarRegistry().register(brown);
 
         List<String> expectedNames = List.of("neo", "brown");
 

From ea16ae08345edf9691de733dcd0c737fbf76630a Mon Sep 17 00:00:00 2001
From: Suhan Ha <10433434+chemistryx@users.noreply.github.com>
Date: Tue, 23 Sep 2025 12:23:49 +0900
Subject: [PATCH 8/8] =?UTF-8?q?test:=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20?=
 =?UTF-8?q?=EC=BD=94=EB=93=9C=20=EB=82=B4=20=EB=A7=A4=EC=A7=81=20=EB=84=98?=
 =?UTF-8?q?=EB=B2=84=20=EC=83=81=EC=88=98=EB=A1=9C=20=EB=8C=80=EC=B2=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/io/suhan/racingcar/domain/Car.java      | 4 ++--
 src/test/java/io/suhan/racingcar/domain/CarTest.java  | 5 +++--
 src/test/java/io/suhan/racingcar/domain/GameTest.java | 5 +++--
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/main/java/io/suhan/racingcar/domain/Car.java b/src/main/java/io/suhan/racingcar/domain/Car.java
index 46ae78f5..82aa3931 100644
--- a/src/main/java/io/suhan/racingcar/domain/Car.java
+++ b/src/main/java/io/suhan/racingcar/domain/Car.java
@@ -4,8 +4,8 @@
 import io.suhan.racingcar.generator.RandomNumberGenerator;
 
 public class Car {
-    private static final int CAR_MOVE_THRESHOLD = 4;
-    private static final int CAR_NAME_MAXIMUM_LENGTH = 5;
+    public static final int CAR_MOVE_THRESHOLD = 4;
+    public static final int CAR_NAME_MAXIMUM_LENGTH = 5;
 
     private final String name;
     private final NumberGenerator generator;
diff --git a/src/test/java/io/suhan/racingcar/domain/CarTest.java b/src/test/java/io/suhan/racingcar/domain/CarTest.java
index 3c6e0e48..8f4e9e03 100644
--- a/src/test/java/io/suhan/racingcar/domain/CarTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/CarTest.java
@@ -1,5 +1,6 @@
 package io.suhan.racingcar.domain;
 
+import static io.suhan.racingcar.domain.Car.CAR_MOVE_THRESHOLD;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -23,7 +24,7 @@ public class CarTest {
 
     @Test
     void 생성된_값이_4_이상일_경우_자동차가_움직일_수_있다() {
-        FixedNumberGenerator generator = new FixedNumberGenerator(4);
+        FixedNumberGenerator generator = new FixedNumberGenerator(CAR_MOVE_THRESHOLD);
         Car car = Car.of("neo", generator);
 
         car.move();
@@ -35,7 +36,7 @@ public class CarTest {
 
     @Test
     void 생성된_값이_3_이하일_경우_자동차가_멈춘다() {
-        FixedNumberGenerator generator = new FixedNumberGenerator(3);
+        FixedNumberGenerator generator = new FixedNumberGenerator(CAR_MOVE_THRESHOLD - 1);
         Car car = Car.of("neo", generator);
 
         car.move();
diff --git a/src/test/java/io/suhan/racingcar/domain/GameTest.java b/src/test/java/io/suhan/racingcar/domain/GameTest.java
index f7411b0a..d0f8bea0 100644
--- a/src/test/java/io/suhan/racingcar/domain/GameTest.java
+++ b/src/test/java/io/suhan/racingcar/domain/GameTest.java
@@ -1,5 +1,6 @@
 package io.suhan.racingcar.domain;
 
+import static io.suhan.racingcar.domain.Car.CAR_MOVE_THRESHOLD;
 import static org.junit.jupiter.api.Assertions.assertIterableEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -30,8 +31,8 @@ public class GameTest {
         // given
         Game game = Game.of(5);
 
-        FixedNumberGenerator forwardGenerator = new FixedNumberGenerator(4);
-        FixedNumberGenerator stopGenerator = new FixedNumberGenerator(3);
+        FixedNumberGenerator forwardGenerator = new FixedNumberGenerator(CAR_MOVE_THRESHOLD);
+        FixedNumberGenerator stopGenerator = new FixedNumberGenerator(CAR_MOVE_THRESHOLD - 1);
 
         Car neo = Car.of("neo", forwardGenerator);
         Car brie = Car.of("brie", stopGenerator);