sh-62 Add post detail by drf

v2/src/blog/urls.py

@@ -0,0 +1,5 @@
+from django.urls import path
+
+from . import views
+
+urlpatterns = [path("posts/<int:post_id>", views.PostDetailUpdateDelete.as_view(), name="post_detail_update_delete")]

v2/src/blog/views.py

@@ -0,0 +1,16 @@
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from .models import Post
+from .serializers import PostSerializer
+
+
+class PostDetailUpdateDelete(APIView):
+    def get(self, request, post_id):
+        try:
+            post = Post.objects.get(pk=post_id)
+        except Post.DoesNotExist:
+            return Response({"message": "Post를 찾을 수 없습니다"}, status=status.HTTP_404_NOT_FOUND)
+
+        return Response({"post": PostSerializer(post).data})

v2/src/tests/post/test_post.py

@@ -1,10 +1,10 @@
-# import json
+import json
 
 from blog.models import Post
 from django.contrib.auth.models import User
 from django.test import TestCase
-
-# from django.urls import reverse
+from django.urls import reverse
+from rest_framework import status
 
 
 class TestPostMixin:
@@ -20,6 +20,35 @@ def _create_author(username, password):
         return User.objects.create_superuser(username=username, password=password)
 
 
-class Test(TestPostMixin, TestCase):
-    def test_temp(self):
-        self.assertEqual(1, 1)
+class TestPostDetail(TestPostMixin, TestCase):
+    def setUp(self):
+        super().setUp()
+
+    def test_post_detail(self):
+        # Given: post가 생성되었을 때
+        post = self._create_post(author=self.author, title="test title", text="test text")
+        post.publish()
+
+        # When: 생성된 post의 id를 인자로 담아 api를 실행
+        response = self.client.get(reverse("post_detail_update_delete", kwargs={"post_id": 1}))
+
+        # Then: 상태코드 200
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+        # And: 생성된 post의 정보와 일치.
+        response_data = json.loads(response.content)["post"]
+        self.assertEqual(response_data["author"], self.author.id)
+        self.assertEqual(response_data["title"], "test title")
+        self.assertEqual(response_data["text"], "test text")
+
+    def test_post_detail_on_error_with_404_not_found(self):
+        # Given: post가 없을 때 (잘못된 post id)
+        # When: 생성된 post의 id를 인자로 담아 api를 실행
+        response = self.client.get(reverse("post_detail_update_delete", kwargs={"post_id": 1}))
+
+        # Then: 상태코드 404
+        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
+
+        # And: "Post를 찾을 수 없습니다" 메세지 리턴.
+        response_data = json.loads(response.content)["message"]
+        self.assertEqual(response_data, "Post를 찾을 수 없습니다")