from django.test import TestCase
from django.urls import reverse
from django.contrib.auth import get_user_model

User = get_user_model()

class LoginViewTests(TestCase):
    def setUp(self):
        self.username = 'testuser'
        self.password = 'testpassword'
        self.user = User.objects.create_user(username=self.username, password=self.password)

    def test_login_view_redirects_authenticated_user(self):
        self.client.login(username=self.username, password=self.password)
        response = self.client.get(reverse('hello_world'))
        self.assertEqual(response.status_code, 200)

    def test_login_view_renders_login_template_for_anonymous_user(self):
        response = self.client.get(reverse('login'))
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, 'login.html')

    def test_logout_redirects_to_login(self):
        self.client.login(username=self.username, password=self.password)
        response = self.client.post(reverse('logout'))
        self.assertRedirects(response, reverse('login'))