def test_get_number_of_votes(self, app):
with app.app_context():
now = datetime.now()
p = Poll(id=None, name="Nom", date=now)
p.save()
assert p.number_of_votes() == 0
c1 = Choice(id=None, choice="Premier choix", poll=p)
c1.save()
c2 = Choice(id=None, choice="Deuxième choix", poll=p)
c2.save()
assert p.number_of_votes() == 0
c1.cast_vote()
c1.cast_vote()
c2.cast_vote()
assert p.number_of_votes() == 3
