Test env
http://<your_domain_or_ip>/1.txt
http://<your_domain_or_ip>/2.txt
http://<your_domain_or_ip>/3.txt
http://<your_domain_or_ip>/cdn1/1.txt
http://<your_domain_or_ip>/cdn1/2.txt
http://<your_domain_or_ip>/cdn1/3.txt
Create sign key in Cloud CDN and set the environment, replace the key_name, key_code, url, url_prefix in test.py