That's great. Would you your country's test covers 100% of the situations a driver might encounter?
Even without knowing the details, I can confidently tell you they don't.
Does it teach you how to recover the car when the tires blow out? How about it is raining? How to react when a car is coming straight at you in the wrong way? How about when a dog jumps out?
In my country at least: Yes.
Hydroplaning and driving on ice is part of the compulsory training, including driving on simulated ice on a special course.