Redirect Irule help

e.g.

when HTTP_REQUEST {
  if { [HTTP::uri] equals "/" } {
    switch -glob [HTTP::host] {
      "*test1*" {
        HTTP::redirect "http://example.com/test1"
      }
      "*test2*" {
        HTTP::redirect "http://example.com/test2"
      }
      default {
         Host does not contain test1 or test2
         Do something
      }
    }
  } else {
     URI is not root (/)
     Do something
  }
}