When students use the “Your Test” functionality in WebLab I believe the expected behaviour is that the test gives an exact description of the error, e.g. something like “Expected x, but was y”. However this seems to only happen in roughly 80% of the time, thus sometimes the output is only: “Test score: 0/2” without any explanation.

Work-around: Rerun until you get output…

Submitted by Algoritmiek-TAs on 13 November 2015 at 10:26