diff --git a/test_scripts/test_upt.lua b/test_scripts/test_upt.lua
new file mode 100644
index 0000000..6d8a775
--- /dev/null
+++ b/test_scripts/test_upt.lua
@@ -0,0 +1,10 @@
+-- retrieve the content of a URL
+local http = require("socket.http")
+local body, code = http.request("https://upyun.alchemy-studio.cn/music-room/17c832cb-bc6b-41f7-96cd-190b7fe4a3d7.jpeg?_upt=e487088a1661273055")
+if not body then error(code) end
+
+-- save the content to a file
+local f = assert(io.open('test.jpg', 'wb')) -- open in "binary" mode
+f:write(body)
+
+f:close()