How to run perl tests without Test.pm file?

How to run perl tests without Test.pm file?
IThere is no pm file in the t directory, only t-files.
https://github.com/openresty/lua-resty-websocket/tree/master/t
```
perl t/count.t t/cs.t t/sanity.t
1..18
Bail out!  Failed to get the version of the Nginx in PATH: 
error: Bad exit status from /var/tmp/rpm-tmp.VmeGz6 (%check)
```