In my uni, the test suite was public; you were supposed to run it and talk to the TA about the tests you can't pass before the deadline. If you didn't do that,

In my uni, the test suite was public; you were supposed to run it and talk to the TA about the tests you can't pass before the deadline. If you didn't do that, and just submitted broken code, then you'd fail the test. Seems fair to me.