Its the test when the exminer signs your rating page afterwards.
In the UK it is a paper work exercise once you have the required numbers in your log book. You don't even need to tell the TRE that you are going to use the check for the issue of the ATPL.
If you speak to other JAR state ATPL's some of them have to do a skills test in the LHS (sweden for example).
Just stick with LASOR's, the only time I have heard of problems is when the person is bang on the minimum hours. If you have an excess on all the requirments its a very simple but expensive exercise.