Our oldest home schooled child, has just passed the test to enter gymnasium. Gymnasium is a Danish education, equivalent to High School. It is a 3 year education, which will prepare you for university.
To go from home school to further education in Denmark, you have to sit an 4-hour exam at the gymnasium you would like to enter. You are tested in the subjects Danish, math, english and physics/chemistry in those 4 hours.
You then have to wait for a month to hear the result and you are then called in for a talk with the principal. At that talk you are told whether you have passed or failed to written test.
Our daughter passed the test with 95% correct answers. She also had a 1 hour long talk with the principal, which went very well. So the home school mom, took it as a personal diploma to hang on her home school insecurities, that has pestered her through the years 🙂