It can be very confusing, even the moderators find it difficult
It's the DWPs medical so passing would suggest it is in their favour, however, people see failing something as negative.
The important thing is to score points.
Most of the tests are phrased in this form.
"Cannot walk more than X metres without significant discomfort"
So you pass the test and score points if you are unable to walk more than the X metres, and fail if you can.
Personally, it sounds counter-intuitive, but that the way it works.
Gordon