From e5b12f9427b64bd723474af5c3ebfdcd8cfd4c66 Mon Sep 17 00:00:00 2001
From: JeongSW123 <123189509+JeongSW123@users.noreply.github.com>
Date: Sat, 27 Jun 2026 17:28:20 +0900
Subject: [PATCH] =?UTF-8?q?feat(posts):=20=EA=B2=8C=EC=8B=9C=EB=AC=BC=20?=
 =?UTF-8?q?=EC=82=AD=EC=A0=9C=20=EC=97=94=EB=93=9C=ED=8F=AC=EC=9D=B8?=
 =?UTF-8?q?=ED=8A=B8=20=EC=B6=94=EA=B0=80?=
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---
 apps/posts/views.py |  3 ++-
 tests/test_posts.py | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/apps/posts/views.py b/apps/posts/views.py
index 723a6d9..4f96c93 100644
--- a/apps/posts/views.py
+++ b/apps/posts/views.py
@@ -47,12 +47,13 @@ def get_queryset(self):
         )
 
 
-class PostDetailView(generics.RetrieveAPIView):
+class PostDetailView(generics.RetrieveDestroyAPIView):
     serializer_class = PostSerializer
     permission_classes = (IsAuthenticated,)
     lookup_field = "post_id"
 
     def get_queryset(self):
+        # 본인 캐릭터의 게시물만 조회·삭제할 수 있다(DELETE 시 댓글·답글은 CASCADE).
         return _POST_QUERYSET.filter(character__user=self.request.user)
 
     def get_serializer_context(self):
diff --git a/tests/test_posts.py b/tests/test_posts.py
index cde4dbe..377d8a6 100644
--- a/tests/test_posts.py
+++ b/tests/test_posts.py
@@ -109,6 +109,36 @@ def test_post_detail_authenticated(auth_client: APIClient, post: Post) -> None:
     assert response.json()["content"] == "테스트 게시글"
 
 
+# 본인 게시글 삭제 성공 시 204 + 게시글·댓글이 함께 삭제(CASCADE)되는지 확인
+@pytest.mark.django_db
+def test_post_delete_authenticated(
+    auth_client: APIClient, user: User, post: Post
+) -> None:
+    comment = Comment.objects.create(post=post, user=user, content="댓글")
+
+    response = auth_client.delete(f"/api/v1/posts/{post.post_id}/")
+
+    assert response.status_code == 204
+    assert not Post.objects.filter(post_id=post.post_id).exists()
+    assert not Comment.objects.filter(pk=comment.pk).exists()  # CASCADE 로 함께 삭제
+
+
+# 다른 사용자의 게시글은 삭제할 수 없다(404, 게시글 유지)
+@pytest.mark.django_db
+def test_post_delete_other_user_forbidden(auth_client: APIClient) -> None:
+    other_post = _make_other_user_post()
+    response = auth_client.delete(f"/api/v1/posts/{other_post.post_id}/")
+    assert response.status_code == 404
+    assert Post.objects.filter(post_id=other_post.post_id).exists()
+
+
+# 비로그인 상태에서 삭제 시 401 반환 확인
+@pytest.mark.django_db
+def test_post_delete_unauthenticated(post: Post) -> None:
+    response = APIClient().delete(f"/api/v1/posts/{post.post_id}/")
+    assert response.status_code == 401
+
+
 # 이사한 캐릭터의 게시물/답글에도 캐릭터 이미지 URL이 포함되는지 확인
 @pytest.mark.django_db
 def test_post_detail_includes_inactive_character_images(