From 7c2dba39d49af89970f3230d35a6c9c12d9514af Mon Sep 17 00:00:00 2001
From: heondong9265 <heondong0723@gmail.com>
Date: Fri, 31 May 2024 20:41:13 +0900
Subject: [PATCH] =?UTF-8?q?=EC=A7=80=ED=95=98=EC=B2=A0=20=EB=93=B1?=
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---
 src/main/java/subway/SubwayService.java     | 11 +++++++++++
 src/test/java/subway/SubwayServiceTest.java | 11 ++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/main/java/subway/SubwayService.java b/src/main/java/subway/SubwayService.java
index 60761a175..6e1c2ad56 100644
--- a/src/main/java/subway/SubwayService.java
+++ b/src/main/java/subway/SubwayService.java
@@ -26,6 +26,17 @@ public void addLine(String name, String[] stationNames) {
         LineRepository.addLine(line);
     }
 
+    public void deleteStation(String name) {
+        if (LineRepository.lines().stream()
+                .flatMap(line -> line.getStations().stream())
+                .anyMatch(station -> station.getName().equals(name))) {
+            throw new IllegalArgumentException("[ERROR] 노선에 등록된 역은 삭제할 수 없습니다.");
+        }
+        if (!StationRepository.deleteStation(name)) {
+            throw new IllegalArgumentException("[ERROR] 존재하지 않는 역입니다.");
+        }
+    }
+
     public List<Station> getStations() {
         return StationRepository.stations();
     }
diff --git a/src/test/java/subway/SubwayServiceTest.java b/src/test/java/subway/SubwayServiceTest.java
index 09dfa4a2c..d3c98929c 100644
--- a/src/test/java/subway/SubwayServiceTest.java
+++ b/src/test/java/subway/SubwayServiceTest.java
@@ -24,12 +24,21 @@ void setUp() {
     class AddStationTest {
 
         @Test
-        @DisplayName("지하철 역을 등록하고 삭제할 수 있다.")
+        @DisplayName("지하철 역을 등록할 수 있다.")
         void addStation() {
             subwayService.addStation("잠실역");
             assertTrue(StationRepository.isStationExist("잠실역"));
         }
 
+        @Test
+        @DisplayName("역을 삭제할 수 있다.")
+        void deleteStation() {
+            subwayService.addStation("잠실역");
+            assertTrue(StationRepository.isStationExist("잠실역"));
+            subwayService.deleteStation("잠실역");
+            assertFalse(StationRepository.isStationExist("잠실역"));
+        }
+
         @Test
         @DisplayName("중복된 지하철 역 이름이 등록될 수 없다.")
         void duplicationStation() {