When I did mine recently, the training school I used provided (in advance) a thorough briefing about what was expected in the flight test- including the expected safety equipment. They provided this early on (basically at start of course) so there was plenty time to get the required kit.
That said, it’s not difficult to obtain what you need. My safety kit includes fire blanket and LiPO extinguisher, anemometer, cones and landing pad(s), decent first aid kit and some other bits and bobs. An hour or so on Amazon will locate pretty much everything and it’ll all be nicely delivered to your door in a day or two (although the bigger landing pads- i.e. over 75cm- are not so easy to get). You might want to think about other oddball stuff- I also have a spare pair of glasses, sun(over)glasses, a bottle of sunscreen (I burn easily) and a hat with a visor in my kit.
I also have a natty little trolley for hauling it all around- I had the trolley already as I do quite a lot of training delivery- if you’re parked a bit away from your vehicle you’ll find there’s quite a lot of stuff to carry about. Or you might use something like a photographic rucksack- I have one where I can get the drone, batteries, controller, anemometer and first aid kit inside, and it has loops on the outside which things like landing pads can be suspended from.