Port in use when trying to run tests

Node version: v10.16.0
Sails version (sails): 1.2.3
ORM hook version (sails-hook-orm): 2.1.1
Sockets hook version (sails-hook-sockets):
Organics hook version (sails-hook-organics):
Grunt hook version (sails-hook-grunt): 4.0.0
Uploads hook version (sails-hook-uploads):
DB adapter & version (e.g. sails-mysql@5.55.5):
Skipper adapter & version (e.g. skipper-s3@5.55.5):

My issue is when running the app I can't run my tests as it kept failing saying the PORT is in use. I believe that should not be the case as running the tests should lift(if it needs to be) on a different PORT, but unfortunately there is no documentation about it.
Matter of fact the documentation about kickstarting a SailsJS project is quite poor IMHO.

How can I fix that tests issue?

Thanks in advance

No source files or test entry points are named. Reproduce the failure with Node v10.16.0, Sails 1.2.3, and the reported test command, then trace how the test app obtains its port and determine whether the port conflict requires a configuration change or documentation update.