[자동차 경주] 장민호 미션 제출합니다.

docs/README.md

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+ # 기능 목록
+ ## 경기 시작 전
+ - 쉼표(,)가 포함된 문자열에서 자동차 이름을 추출
+ - 이동 횟수를 입력
+ ## 경기 중
+ - 무작위 값(0~9)을 추출하여 4와 비교
+ - 자동차의 현 위치 출력
+ ## 경기 후
+ - 우승자 출력
+ - 우승자가 2명 이상일 경우 (,) 구분 출력
+ ## Test코드
+ - 자동차 이름 이상값 test (ApplicationTest)
+ - 시도 횟수 이상값 test
+ - 공동 우승 test

src/main/kotlin/racingcar/Application.kt

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 package racingcar
 
+import racingcar.controller.RacingCarController
+
 fun main() {
-    // TODO: 프로그램 구현
+    val racingCarController = RacingCarController()
+    racingCarController.play()
 }

src/main/kotlin/racingcar/controller/RacingCarController.kt

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+package racingcar.controller
+
+import camp.nextstep.edu.missionutils.Console
+import camp.nextstep.edu.missionutils.Randoms
+import racingcar.model.RacingCar
+import racingcar.view.InputView
+import racingcar.view.OutputView
+
+
+class RacingCarController {
+    private val inputView = InputView()
+    private val outputView = OutputView()
+
+    fun play() {
+        inputView.submitCarNames()
+        val input = Console.readLine()
+        val carList = makeCarList(input)
+        outputView.startGameMessage()
+        playWithCarList(carList, inputView.askTimes(), outputView)
+        val winnerList = findWinner(carList)
+        outputView.noticeWinner(winnerList)
+    }
+
+    private fun makeCarList(input: String?): MutableList<RacingCar> {
+        val cars = input?.split(',')
+        if (cars != null) {
+            regexCheck(cars)
+        } else {
+            throw IllegalArgumentException()
+        }
+        val carList = mutableListOf<RacingCar>()
+        for (car in cars) {
+            carList.add(RacingCar(car, 0))
+        }
+        return carList
+    }
+
+    private fun regexCheck(cars: List<String>) {
+        for (car in cars) {
+            if (!car.matches(Regex("\\w{1,5}"))) {
+                throw IllegalArgumentException()
+            }
+        }
+    }
+
+    private fun moveForwardOrNot(carList: MutableList<RacingCar>) {
+        for (car in carList) {
+            val randomNumber = Randoms.pickNumberInRange(0, 9)
+            if (randomNumber >= 4) {
+                car.moveForward()
+            }
+        }
+    }
+
+    private fun playWithCarList(carList: MutableList<RacingCar>, times: Int, outputView: OutputView) {
+        for (i in 0 until times) {
+            moveForwardOrNot(carList)
+            outputView.printCurrentPlace(carList)
+        }
+    }
+
+    private fun findWinner(carList: MutableList<RacingCar>): List<RacingCar> {
+        val maxForward = carList.maxByOrNull { it.getForward() }?.getForward()
+        return carList.filter { it.getForward() == maxForward }
+    }
+}

src/main/kotlin/racingcar/model/RacingCar.kt

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+package racingcar.model
+
+class RacingCar(private val carName: String, private var forward: Int = 0) {
+    fun moveForward() {
+        forward++
+    }
+
+    fun getCarName(): String {
+        return carName
+    }
+
+    fun getForward(): Int {
+        return forward
+    }
+
+}

src/main/kotlin/racingcar/view/InputView.kt

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+package racingcar.view
+
+import camp.nextstep.edu.missionutils.Console
+
+class InputView {
+    fun submitCarNames() = println(SUBMIT_CAR_NAMES_MESSAGE)
+    fun askTimes(): Int {
+        println(ASK_TIMES_MESSAGE)
+        val timesInput = Console.readLine().toInt()
+        if (timesInput < 1) {
+            throw IllegalArgumentException()
+        }
+        return timesInput
+    }
+
+    companion object {
+        const val SUBMIT_CAR_NAMES_MESSAGE = "경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)"
+        const val ASK_TIMES_MESSAGE = "시도할 횟수는 몇 회인가요?"
+    }
+}

src/main/kotlin/racingcar/view/OutputView.kt

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+package racingcar.view
+
+import racingcar.model.RacingCar
+
+class OutputView {
+    fun noticeWinner(winnerList: List<RacingCar>) {
+        println(WINNER_MESSAGE + winnerList.joinToString(", ") { it.getCarName() })
+    }
+
+    fun printCurrentPlace(carList: MutableList<RacingCar>) {
+        for (car in carList) {
+            val currentPlace = "-".repeat(car.getForward())
+            println(car.getCarName() + " : " + currentPlace)
+        }
+        println("\n")
+    }
+
+    fun startGameMessage() = println(START_GAME_MESSAGE)
+
+    companion object {
+        const val WINNER_MESSAGE = "최종 우승자 : "
+        const val START_GAME_MESSAGE = "실행 결과"
+    }
+}

src/test/kotlin/racingcar/RacingCarTest.kt

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+package racingcar
+
+import camp.nextstep.edu.missionutils.test.Assertions
+import camp.nextstep.edu.missionutils.test.Assertions.assertRandomNumberInRangeTest
+import camp.nextstep.edu.missionutils.test.NsTest
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+
+class RacingCarTest : NsTest() {
+    @Test
+    fun `시도 횟수 이상값 test`() {
+        Assertions.assertSimpleTest {
+            assertThrows<IllegalArgumentException> { runException("bon,jovi", "가") }
+        }
+        Assertions.assertSimpleTest {
+            assertThrows<IllegalArgumentException> { runException("bon,jovi", "hello") }
+        }
+        Assertions.assertSimpleTest {
+            assertThrows<IllegalArgumentException> { runException("bon,jovi", "-1") }
+        }
+        Assertions.assertSimpleTest {
+            assertThrows<IllegalArgumentException> { runException("bon,jovi", "0") }
+        }
+    }
+
+    @Test
+    fun `공동 우승`() {
+        assertRandomNumberInRangeTest(
+            {
+                run("bon,jovi", "3")
+                assertThat(output()).contains("최종 우승자 : bon, jovi")
+            },
+            5
+        )
+    }
+
+    public override fun runMain() {
+        main()
+    }
+
+    companion object {
+        private const val MOVING_FORWARD = 4
+        private const val STOP = 3
+    }
+}