[충남대 BE_이동현] 미션 제출합니다

README.md

@@ -1 +1,10 @@
-# java-racingcar-precourse
+# java-racingcar-precourse
+
+# 기능 목록 정리
+
+1. n대의 자동차 이름 입력 기능
+2. 이름 글자 제한
+3. 전진 기능
+4. 시행 횟수 입력 기능
+5. 우승자 표시 기능
+6. 예외 처리 기능

src/main/java/racingcar/Application.java

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+package racingcar;
+
+import racingcar.controller.RaceController;
+
+public class Application {
+    public static void main(String[] args) {
+        RaceController controller = new RaceController();
+        controller.run();
+    }
+}

src/main/java/racingcar/controller/RaceController.java

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+package racingcar.controller;
+
+import racingcar.model.Car;
+import racingcar.model.Race;
+import racingcar.view.InputView;
+import racingcar.view.OutputView;
+
+import java.util.List;
+
+public class RaceController {
+    public void run(){
+        String[] carNames = InputView.getCarNames();
+        int numberOfAttempts = InputView.getNumberOfAttempts();
+
+        Race race = new Race(carNames);
+        OutputView.printOutput();
+        for (int i = 0; i < numberOfAttempts; i++) {
+            race.race();
+            OutputView.printRace(race.getCars());
+        }
+
+        List<String> winners = race.getWinners();
+        OutputView.printWinners(winners);
+
+    }
+}

src/main/java/racingcar/model/Car.java

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+package racingcar.model;
+
+import java.util.Random;
+
+public class Car {
+    private static final int MINIMUM_NUM = 4;
+    private String name;
+    private int position = 0;
+
+    public Car(String name){
+        if (name == null || name.isEmpty() || name.length() > 5) {
+            throw new IllegalArgumentException("자동차 이름은 1자 이상, 5자 이하로 입력하세요.");
+        }
+        this.name = name;
+    }
+
+    public void move(){
+        if(canMove()){
+            position++;
+        }
+    }
+
+    private boolean canMove() {
+        Random random = new Random();
+        return random.nextInt(10) >= MINIMUM_NUM;
+    }
+
+    public int getPosition(){
+        return position;
+    }
+
+    public String getName(){
+        return name;
+    }
+}

src/main/java/racingcar/model/Race.java

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+package racingcar.model;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Race {
+    private final List<Car> cars;
+
+    public Race(String[] carNames) {
+        cars = new ArrayList<>();
+        for (String name : carNames) {
+            cars.add(new Car(name));
+        }
+    }
+
+    public List<Car> getCars(){
+        return cars;
+    }
+
+    public void race() {
+        for (Car car : cars) {
+            car.move();
+        }
+    }
+
+    public List<String> getWinners(){
+        int maxPosition = cars.stream()
+                .mapToInt(Car::getPosition)
+                .max()
+                .orElse(0);
+        return cars.stream()
+                .filter(car -> car.getPosition() == maxPosition)
+                .map(Car::getName)
+                .collect(Collectors.toList());
+    }
+}

src/main/java/racingcar/view/InputView.java

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+package racingcar.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(,) 기준으로 구분");
+        return scanner.nextLine().split(",");
+    }
+
+    public static int getNumberOfAttempts(){
+        System.out.println("시도할 회수는 몇회인가요?");
+        return scanner.nextInt();
+    }
+}

src/main/java/racingcar/view/OutputView.java

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+package racingcar.view;
+
+import racingcar.model.Car;
+
+import java.util.List;
+
+public class OutputView {
+
+    public static void printOutput(){
+        System.out.println("\n실행 결과");
+    }
+    public static void printRace(List<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car.getName() + " : " + "-".repeat(car.getPosition()));
+        }
+    }
+
+    public static void printWinners(List<String> winners) {
+        System.out.println("최종 우승자 : " + String.join(", ", winners));
+    }
+}

src/test/java/racingcar/model/CarTest.java

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+package racingcar.model;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
+
+class CarTest {
+
+    @Test
+    void move() {
+        Car car = new Car("pobi");
+        int initialPosition = car.getPosition();
+        car.move();
+        assertThat(car.getPosition()).isGreaterThanOrEqualTo(initialPosition);
+    }
+
+    @Test
+    void getPosition() {
+        Car car = new Car("pobi");
+        assertThat(car.getPosition()).isEqualTo(0);
+        car.move();
+        assertThat(car.getPosition()).isGreaterThanOrEqualTo(0);
+    }
+
+    @Test
+    void getName() {
+        Car car = new Car("pobi");
+        assertThat(car.getName()).isEqualTo("pobi");
+    }
+
+    @Test
+    void createCar() {
+        Car car = new Car("pobi");
+        assertThat(car.getName()).isEqualTo("pobi");
+        assertThat(car.getPosition()).isEqualTo(0);
+    }
+
+}

src/test/java/racingcar/model/RaceTest.java

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+package racingcar.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat;
+
+class RaceTest {
+
+    @Test
+    void getCars() {
+        String[] carNames = {"pobi", "woni", "jun"};
+        Race race = new Race(carNames);
+        List<Car> cars = race.getCars();
+
+        assertThat(cars).hasSize(3);
+        assertThat(cars.get(0).getName()).isEqualTo("pobi");
+        assertThat(cars.get(1).getName()).isEqualTo("woni");
+        assertThat(cars.get(2).getName()).isEqualTo("jun");
+    }
+
+    @Test
+    void race() {
+        String[] carNames = {"pobi", "woni", "jun"};
+        Race race = new Race(carNames);
+        race.race();
+
+        List<Car> cars = race.getCars();
+        for (Car car : cars) {
+            assertThat(car.getPosition()).isGreaterThanOrEqualTo(0);
+        }
+    }
+
+    @Test
+    void getWinners() {
+        String[] carNames = {"pobi", "woni", "jun"};
+        Race race = new Race(carNames);
+        race.race();
+
+        List<String> winners = race.getWinners();
+        assertThat(winners).isNotEmpty();
+    }
+}