def test_login_success(client):
    """测试登录成功"""
    response = client.post(
        "/api/auth/login",
        data={"username": "test_admin", "password": "test_password"}
    )
    assert response.status_code == 200
    assert "access_token" in response.json()
    assert response.json()["token_type"] == "bearer"


def test_login_invalid_username(client):
    """测试登录失败 - 用户名无效"""
    response = client.post(
        "/api/auth/login",
        data={"username": "invalid_user", "password": "test_password"}
    )
    assert response.status_code == 401
    assert "Incorrect username or password" in response.json()["detail"]


def test_login_invalid_password(client):
    """测试登录失败 - 密码无效"""
    response = client.post(
        "/api/auth/login",
        data={"username": "test_admin", "password": "invalid_password"}
    )
    assert response.status_code == 401
    assert "Incorrect username or password" in response.json()["detail"]


def test_login_empty_username(client):
    """测试登录失败 - 用户名为空"""
    response = client.post(
        "/api/auth/login",
        data={"username": "", "password": "test_password"}
    )
    assert response.status_code == 422


def test_login_empty_password(client):
    """测试登录失败 - 密码为空"""
    response = client.post(
        "/api/auth/login",
        data={"username": "test_admin", "password": ""}
    )
    assert response.status_code == 422