Install libplack-test-agent-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libplack-test-agent-perl
OO interface for testing low-level Plack/PSGI apps
Plack is a set of tools similar to Ruby's Rack or Python's Paste for WSGI. It implements the Perl Server Gateway Interface (PSGI) standard interface, which allows developers to decouple their web application framework from the local web server environment. . Plack::Test::Agent is an OO interface to test PSGI applications. It can perform GET and POST requests against PSGI applications either in process or over HTTP through a Plack::Handler-compatible backend. . This is an experimental module and its interface may change.