I have worked as a flying instructor, turbo prop pilot and now on an airbus with a major carrier. I have never been asked to produce anything regarding exams, flight tests, sim checks. If you are good enough to pass the recruitment requirements which will usually include a sim check then on the basis that you have a CPL/ATPL you will be offered a position. Just go out and try to relax, pass the test and enjoy your future flying.
Mate of mine failed his IR first time around, he is now Capt with a low cost carrier, another failed his first TWO rounds of ATPL exams, he is now flying with a major on jets.
By the way, if you do o.k. on the circuits then the examiner should just sign you off.