Emergency Lighting Tests - should normal lights go off?

[Silly Sausage]

Creating a dangerous environment due to the activation of a test is not advisable.

I accidentally killed the lights in a busy hotel kitchen once on an Inspection.
I got a surprisingly friendly warning form the head Chef (considering what some of them are like), that I should've warned them of the possibility, and I'd've been in deep whathaveyou if someone had chopped one of their fingers off.
Advice taken, understood and absorbed.