Hardingl, please tell your other half that with her test score so far she will be doing absolutely fine!
Doing well on the tests, she has shown that she knows her stuff.
The check flight will give her the chance to show that in practice. Only way to screw-up is if she gets so nervous that she forgets........... But since she has managed to get through the initial interviews and all the tests so far, she obviously is a woman who can keep her nerves under control when it matters.
Ergo, she
will be OK!
Please pass on to her, from an "old wagon dragon" to a young an aspiring one, a very warm welcome to this weird and wonderful profession of ours!