Command 'selenium test' not available in Spring Roo

when I try to run the command

roo> selenium test --controller ~.web.TimerController

I get the following error:

Command 'se开发者_StackOverflow中文版lenium test --controller ~.web.TimerController' was found but is not
currently available (type 'help' then ENTER to learn about this command)

Does anyone know why this happens?

It appears you first have to run "web mvc controller" then the selenium test is available. This is true for version 1.2.3-RELEASE. I'm unsure on the previous versions.