Extended Tests and Initiative Passes

Just a quick question that I've been puzzling over and no one seems to have an answer for it on all of the internets posted.

For an extended test that is listed as being done in 1 Combat Turn, in my case it's Detect Hidden Node.

Do I get to roll at each initiative pass for the extended test or is it just one initiative pass is used for the extended test and the other pass is used for something else?

I don't know if I missed it in the rule book or something but I'd like to have your input on this guys.

If the time increment for an Extended Test is 1 Combat Turn, then the test only occurs once each Turn. It doesn't matter how many IPs there are, the stated increment doesn't change. If there were more tests in a Combat Turn, then the time increment would state 1 IP instead.

Thank you, I was just not sure about it.
So now I need to figure out what my second action should be.