2단계 우승 자동차 구하기

Author: mmm307955

src/main/java/Car.java

@@ -20,7 +20,4 @@ public int getPosition() {
         return position;
     }
 
-    public String getPositionAsString(){
-        return "-".repeat(position);
-    }
 }

src/main/java/Winners.java

@@ -0,0 +1,14 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class Winners {
+    public static List<String> findWinnersNames(List<Car> cars){
+        List<String> winners = new ArrayList<>();
+        for(int i = 0; i < cars.size(); i++){
+            if(cars.get(i).getPosition() >= 5){
+                winners.add(cars.get(i).getCarName());
+            }
+        }
+        return winners;
+    }
+}

src/test/java/WinnersTest.java

@@ -0,0 +1,30 @@
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class WinnersTest {
+    @Test
+    @DisplayName("우승자(들) 이름을 반환한다")
+    void returnWinnerNames(){
+        Car carA = new Car("Car A");
+        Car carB = new Car("Car B");
+        Car carC = new Car("Car C");
+
+        for(int i = 0; i < 5; i++){
+            carA.move(()->true);
+        }
+
+        for(int i = 0; i < 4; i++){
+            carB.move(()->true);
+        }
+        for(int i = 0; i < 5; i++){
+            carC.move(()->true);
+        }
+
+        List<Car> cars = List.of(carA, carB, carC);
+        assertThat(Winners.findWinnersNames(cars)).containsExactlyInAnyOrder("Car A","Car C");
+    }
+}