[자동차 경주] 강동안 미션 제출합니다.

src/main/java/Game.java

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+import domain.Car;
+import domain.Competition;
+import view.InputView;
+import view.ResultView;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class Game {
+    Competition game = new Competition();
+
+    public void game(){
+        String[] carNames = InputView.getCarNames();
+        int gameTime = InputView.getGameTime();
+
+        if(isVaildNames(carNames)){
+            return;
+        }
+
+        joinGame(carNames);
+
+        System.out.println("\n실행 결과");
+        for (int i=0;i < gameTime;i++){
+            game.runRandomCompetition();
+            ResultView.printRound(game.getCars());
+        }
+
+        ArrayList<Car> winners = game.getWinners();
+        ResultView.printWinners(winners);
+    }
+
+    private boolean isVaildNames(String[] cars){
+        return Arrays.stream(cars).allMatch(car -> car.length() > 5);
+    }
+
+    private void joinGame(String[] cars){
+        for (String car : cars){
+            game.joinCompetition(car);
+        }
+    }
+}

src/main/java/Main.java

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+public class Main {
+    public static void main(String[] args){
+        Game game = new Game();
+
+        game.game();
+    }
+}

src/main/java/domain/Car.java

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+package domain;
+
+public class Car {
+    private String name;
+    private int position;
+
+    public Car(String name, int position){
+        this.name = name;
+        this.position = position;
+    }
+
+    public int getPosition(){
+        return this.position;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    // 차 이동
+    public void moveCar(int value) {
+        if (value >= 4){
+            this.position += 1;
+        }
+    }
+}

src/main/java/domain/Competition.java

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+package domain;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Random;
+import java.util.stream.Collectors;
+
+public class Competition {
+    ArrayList<Car> cars = new ArrayList<>();
+
+    public void joinCompetition(String name){
+        cars.add(new Car(name, 0));
+    }
+
+    public void runRandomCompetition(){
+        Random random = new Random();
+
+        for (Car car : cars){
+            car.moveCar(random.nextInt(10));
+        }
+    }
+
+    public void runCompetition(int value){
+        for (Car car : cars){
+            car.moveCar(value);
+        }
+    }
+
+    private int getPositionMax(){
+        ArrayList<Integer> positionList = new ArrayList<>();
+
+        for (Car car : cars){
+            positionList.add(car.getPosition());
+        }
+
+        return Collections.max(positionList);
+    }
+
+    public ArrayList<Car> getWinners(){
+        int maxPosition = getPositionMax();
+        return cars.stream()
+                .filter(car ->  car.getPosition() == maxPosition)
+                .collect(Collectors.toCollection(ArrayList::new));
+    }
+
+    public ArrayList<Car> getCars(){
+        return cars;
+    }
+}

src/main/java/view/InputView.java

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+package view;
+
+import java.util.Scanner;
+
+public class InputView {
+    private static final Scanner scanner = new Scanner(System.in);
+
+    public static String[] getCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분).");
+        String input = scanner.nextLine();
+        return input.split(",");
+    }
+
+    public static int getGameTime() {
+        System.out.println("시도할 횟수는 몇 회인가요?");
+        return scanner.nextInt();
+    }
+}

src/main/java/view/ResultView.java

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+package view;
+
+import domain.Car;
+
+import java.util.ArrayList;
+import java.util.StringJoiner;
+
+public class ResultView {
+    public static void printRound(ArrayList<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car.getName() + " : " + "-".repeat(car.getPosition()));
+        }
+        System.out.println();
+    }
+
+    public static void printWinners(ArrayList<Car> winners) {
+        StringJoiner joiner = new StringJoiner(", ");
+        for (Car car : winners) {
+            joiner.add(car.getName());
+        }
+        System.out.println(joiner + "가 최종 우승했습니다!");
+    }
+}

src/test/java/JUnit5Test.java

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+import domain.Car;
+import domain.Competition;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+
+public class JUnit5Test {
+
+    @Nested
+    class moveTest{
+
+        @Test
+        void move3(){
+            Car car = new Car("TeCar", 0);
+            car.moveCar(3);
+            assertEquals(0, car.getPosition());
+        }
+
+        @Test
+        void move4(){
+            Car car = new Car("TeCar", 0);
+            car.moveCar(4);
+            assertEquals(1, car.getPosition());
+        }
+    }
+
+    @Nested
+    class competitionTest{
+
+        @Test
+        void runFixedValue() {
+            Competition game = new Competition();
+
+            game.joinCompetition("Kang");
+            game.joinCompetition("dong");
+            game.joinCompetition("ahn");
+
+            game.runCompetition(4);
+
+            for (Car car: game.getCars()){
+                assertEquals(1, car.getPosition());
+            }
+        }
+    }
+}