ログイン・ログアウト機能の実装

accounts/tests.py

@@ -1,3 +1,4 @@
+from django.conf import settings
 from django.contrib.auth import SESSION_KEY, get_user_model
 from django.test import TestCase
 from django.urls import reverse
@@ -29,7 +30,7 @@ def test_success_post(self):
         # Tweets/homeへのリダイレクト
         self.assertRedirects(
             response,
-            reverse("tweets:home"),
+            reverse(settings.LOGIN_REDIRECT_URL),
             status_code=302,
             target_status_code=200,
         )
@@ -195,18 +196,77 @@ def test_failure_post_with_mismatch_password(self):
         self.assertIn("確認用パスワードが一致しません。", form.errors["password2"])
 
 
-# class TestLoginView(TestCase):
-#     def test_success_get(self):
+class TestLoginView(TestCase):
+    def setUp(self):
+        self.url = reverse("accounts:login")
+        self.user = User.objects.create_user(username="testuser", password="testpassword")
 
-#     def test_success_post(self):
+    def test_success_get(self):
+        response = self.client.get(self.url)
+        self.assertEqual(response.status_code, 200)
 
-#     def test_failure_post_with_not_exists_user(self):
+    def test_success_post(self):
+        valid_data = {
+            "username": " testuser",
+            "password": "testpassword",
+        }
 
-#     def test_failure_post_with_empty_password(self):
+        response = self.client.post(self.url, valid_data)
+        self.assertRedirects(
+            response,
+            reverse(settings.LOGIN_REDIRECT_URL),  # リダイレクト先
+            status_code=302,
+            target_status_code=200,  # リダイレクト先のステータスコード
+        )
+        self.assertIn(SESSION_KEY, self.client.session)
 
+    def test_failure_post_with_not_exists_user(self):
+        invalid_data = {
+            "username": "testuserr",
+            "password": "testpassword",
+        }
 
-# class TestLogoutView(TestCase):
-#     def test_success_post(self):
+        response = self.client.post(self.url, invalid_data)
+        form = response.context["form"]
+
+        self.assertEqual(response.status_code, 200)
+        self.assertNotIn(SESSION_KEY, self.client.session)
+        self.assertContains(
+            response,
+            "正しいユーザー名とパスワードを入力してください。どちらのフィールドも大文字と小文字は区別されます。",
+        )
+        self.assertTrue(form.errors)
+
+    def test_failure_post_with_empty_password(self):
+        invalid_data = {
+            "username": "testuserr",
+            "password": "",
+        }
+
+        response = self.client.post(self.url, invalid_data)
+        form = response.context["form"]
+
+        self.assertEqual(response.status_code, 200)
+        self.assertNotIn(SESSION_KEY, self.client.session)
+        self.assertIn("このフィールドは必須です。", form.errors["password"])
+
+
+class TestLogoutView(TestCase):
+    def setUp(self):
+        self.url = reverse("accounts:logout")
+        User.objects.create_user(username="testuser", password="testpassword")
+        self.client.login(username="testuser", password="testpassword")
+
+    def test_success_post(self):
+        response = self.client.post(self.url)
+
+        self.assertRedirects(
+            response,
+            reverse(settings.LOGOUT_REDIRECT_URL),
+            status_code=302,
+            target_status_code=200,
+        )
+        self.assertNotIn(SESSION_KEY, self.client.session)
 
 
 # class TestUserProfileView(TestCase):

accounts/urls.py

@@ -1,4 +1,5 @@
 # from django.contrib.auth import views as auth_views
+from django.contrib.auth.views import LoginView, LogoutView
 from django.urls import path
 
 from . import views
@@ -7,8 +8,8 @@
 
 urlpatterns = [
     path("signup/", views.SignupView.as_view(), name="signup"),
-    # path('login/', auth_views.LoginView.as_view(), name='login'),
-    # path('logout/', auth_views.LogoutView.as_view(), name='logout'),
+    path("login/", LoginView.as_view(template_name="accounts/login.html"), name="login"),
+    path("logout/", LogoutView.as_view(), name="logout"),
     # path('<str:username>/', views.UserProfileView.as_view(), name='user_profile'),
     # path('<str:username>/follow/', views.FollowView.as_view(), name='follow'),
     # path('<str:username>/unfollow/', views.UnFollowView, name='unfollow'),

accounts/views.py

@@ -1,16 +1,21 @@
 # from django.shortcuts import render
 
+from django.conf import settings
 from django.contrib.auth import authenticate, login
+from django.contrib.auth.mixins import LoginRequiredMixin
+from django.contrib.auth.models import User
 from django.urls import reverse_lazy
-from django.views.generic import CreateView
+from django.views.generic import CreateView, TemplateView
 
 from .forms import SignupForm
 
 
 class SignupView(CreateView):
     form_class = SignupForm
     template_name = "accounts/signup.html"
-    success_url = reverse_lazy("tweets:home")  # リダイレクト先url貼付、success_url使用時遅延評価でurl逆引き
+    success_url = reverse_lazy(
+        settings.LOGIN_REDIRECT_URL
+    )  # リダイレクト先url貼付、success_url使用時遅延評価でurl逆引き
 
     def form_valid(self, form):
         response = super().form_valid(form)
@@ -21,3 +26,15 @@ def form_valid(self, form):
         user = authenticate(self.request, username=username, password=password)
         login(self.request, user)
         return response
+
+
+class UserProfileView(LoginRequiredMixin, TemplateView):
+    template_name = "accounts/user_profile.html"
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        username = self.kwargs.get("username")
+        user = User.objects.get(username=username)
+        context["user"] = user
+        context["username"] = username
+        return context

mysite/settings.py

@@ -125,3 +125,9 @@
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 AUTH_USER_MODEL = "accounts.User"
+
+
+LOGIN_URL = "accounts:login"
+LOGOUT_URL = "accounts:logout"
+LOGIN_REDIRECT_URL = "tweets:home"
+LOGOUT_REDIRECT_URL = "accounts:login"

templates/accounts/login.html

@@ -0,0 +1,10 @@
+{% extends "base.html" %}
+{% block title %}login{% endblock %}
+{% block content %}
+
+<form method="post">
+    {% csrf_token %}
+    {{ form.as_p}}
+    <button type="submit">ログイン</button>
+</form>
+{% endblock %}

templates/accounts/user_profile.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block title %}User Profile{% endblock %}
+
+{% block content %}
+<p>{(username)}</p>
+
+{% endblock %}