def METHOD_NAME(self):
    form_data = {
        "name": "Assunto 2", 
        "visible": True, 
        "init_date": datetime.now() + timedelta(days=2), 
        "end_date": datetime.now() + timedelta(days=3), 
        "subscribe_begin": datetime.now(), 
        "subscribe_end": datetime.now() + timedelta(days=1), 
        "category": self.category,
        "tags": "teste,test,testando"
    }
    form = SubjectForm(data=form_data, initial={"category": self.category})
    participants = [c[1] for c in form.fields["students"].choices]
    self.assertIn("%s - (%s)"%(str(self.user), self.user.email), participants