NAME

Stem::Test::Echo - This cell accepts messages and sends back reply messages or command data. It can be used to test message receipt, replies, and command returns and to benchmark message throughput.

SYNOPSIS

[
        'class'	=>	'Stem::Test::Echo',
        'name'	=>	'test_echo',
],

USAGE

This cell accepts various messages, all of which will echo some message back to the sender.

An echo type message will do a reply with no data.

An echo_data type message will do a reply with the sent data.

An echo command message will return a null string.

An echo_data command message will return the data.

Any other message type or command will do a plain reply like
an 'echo' type message.