frappe/test_sites/test_site/site_config.json

{
 "db_name": "test_frappe",
 "db_password": "test_frappe",
 "auto_email_id": "test@example.com",
 "mail_server": "smtp.example.com",
 "mail_login": "test@example.com",
 "mail_password": "test",
 "admin_password": "admin",
 "run_selenium_tests": 1,
 "host_name": "http://localhost:8000"
}