As far as I can understand from your story nothing funny is going on. It sounds like normal training to me.
If you want to take some test you should realize that there is a huge responsibility placed on you. You have to train and review the techniques regularly, and not only within the given classes. It is not your teacher that has to make you ready for the test, that is something you have to do yourself! Find a partner to do/practise the exam with. Learn from each other, find out were your problems are and go, preferably to the sempai, and ask question and instruction about your problems. And practise a lot, in the dojo, at work, in school, in the park, at the beach.