how to test a .HTACCESS setup?

Creating a .HTACCESS file is all good and well but how on earth do you test it?

# This section is my question, I am not on these servers.
# How do I know this works?

Order allow,deny
allow from all
deny from eudora.com
deny from bravenet.com
deny from tripod.com
deny from lethadinan.pib.ir
deny from xanga.com
deny from iblogme.com



Here's how:
http://www.botsvsbrowsers.com/SimulateUserAgent.asp


Cheers