>>> from estudiants import estudiants_per_assig

>>> dic = {('Pol','Amer','Coll'):['FI','CA','QM'],
... ('Aina','Soler','Gil'):['FI','CA','QM','ME'],
... ('Joan','Rubio','Boix'):['CA','QM','ME', 'AL'],
... ('Mar','Pou','Coll'):['CA','GE']}
>>> {'FI':2,'CA':4,'QM':3,'ME':2,'AL':1,'GE':1} == estudiants_per_assig(dic)
True