> assert s.calculate() == case.probs
E assert <3x3 grid> == <3x3 grid>
E (pytest_assertion plugin: representation of details failed: /mnt/c/Users/legaul/Documents/personal/minegauler/minegauler/shared/utils.py:142: TypeError: Grid keys should be tuple coordinates of the form (0, 1).
E Probably an object has a faulty __repr__.)