yangc code testing

import pytest
from django.test import Client
from django.contrib.auth.models import User

@pytest.fixture
def client():
    return Client()

@pytest.fixture
def test_user():
    user = User.objects.create_user(username='test_user', password='test_password')
    return user

def test_user_login_success(client, test_user):
    response = client.post('/user_login/', {'username': 'test_user', 'password': 'test_password'})
    assert response.status_code == 302  # 成功应该重定向
    assert response.url == '/home/'

def test_user_login_failed(client):
    response = client.post('/user_login/', {'username': 'invalid_user', 'password': 'invalid_password'})
    assert response.status_code == 200  # 失败应该返回登录页面
    assert 'Invalid username or password' in response.content.decode()