https://de.mathworks.com/help/database/ug/database.options.native.postgresql.sqlconnectionoptions.testconnection.html
testConnection - Test PostgreSQL native interface database connection - MATLAB
This MATLAB function tests the PostgreSQL native interface database connection specified by the SQLConnectionOptions object opts, a user name, and a password.
postgresql native interfacedatabase connectiontestmatlab
https://api.rubyonrails.org/v7.0.2/classes/ActionCable/Connection/TestConnection.html
ActionCable::Connection::TestConnection
actioncableconnection