Step5

src/main/java/racing/RacingApplication.java

@@ -0,0 +1,9 @@
+package racing;
+
+import racing.controller.CarRacingController;
+
+public class RacingApplication {
+    public static void main(String[] args) {
+        CarRacingController.main(args);
+    }
+}

src/main/java/racing/controller/CarRacingController.java

@@ -23,4 +23,5 @@ public static void main(String[] args) {
         }
         resultView.findWinners(cars.findWinners());
     }
+
 }

src/main/java/racing/entity/CarName.java

@@ -5,7 +5,10 @@ public class CarName {
 
     public CarName(String value) {
         if (value == null || value.isEmpty()) {
-            throw new IllegalArgumentException("Car name cannot be null or empty.");
+            throw new IllegalArgumentException("cannot be null or empty.");
+        }
+        if (value.length() > 5) {
+            throw new IllegalArgumentException("cannot be longer than 5 characters.");
         }
         this.value = value;
     }

src/main/java/racing/entity/Position.java

@@ -17,4 +17,4 @@ public int getValue() {
     public Position movePosition() {
         return new Position(value + 1);
     }
-}
+}

src/main/java/racing/service/Cars.java

@@ -32,4 +32,3 @@ public List<Car> findWinners() {
                 .filter(car -> car.isPosition(maxPosition))
                 .collect(Collectors.toList());
     }
-}

src/main/java/racing/view/InputView.java

@@ -19,6 +19,7 @@ public List<Car> inputCar() {
         return cars;
     }
 
+
     public int inputNumber() {
         System.out.println("시도할 횟수를 입력하세요 : ");
         return scanner.nextInt();

src/test/java/racing/CarNameTest.java

@@ -0,0 +1,26 @@
+package racing;
+
+import org.junit.jupiter.api.Test;
+import racing.entity.CarName;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class CarNameTest {
+
+    @Test
+    void carNameIsSetCorrectly() {
+        CarName carName = new CarName("Car");
+        assertEquals("Car", carName.getValue());
+    }
+
+    @Test
+    void carNameCannotBeNull() {
+        assertThrows(IllegalArgumentException.class, () -> new CarName(null));
+    }
+
+    @Test
+    void carNameCannotBeEmpty() {
+        assertThrows(IllegalArgumentException.class, () -> new CarName(""));
+    }
+}

src/test/java/racing/CarTest.java

@@ -20,7 +20,9 @@ void carDoesNotMove() {
         Car car = new Car("Car") {
             @Override
             public void move() {
-                if (canMove(5)) { // 임의의 값 5를 전달하여 항상 true를 반환하도록 함
+
+                if (canMove(5)) {
+
                     Position position = new Position(1);
                 }
             }

src/test/java/racing/PositionTest.java

@@ -0,0 +1,29 @@
+package racing;
+
+import org.junit.jupiter.api.Test;
+import racing.entity.Position;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class PositionTest {
+
+    @Test
+    void positionCorrectly() {
+        Position position = new Position(5);
+        assertEquals(5, position.getValue());
+    }
+
+    @Test
+    void positionCannotBeNegative() {
+        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () -> new Position(-1));
+        assertEquals("cannot be negative.", exception.getMessage());
+    }
+
+    @Test
+    void movePositionCorrectly() {
+        Position position = new Position(5);
+        Position movedPosition = position.movePosition();
+        assertEquals(6, movedPosition.getValue());
+    }
+}