def test_get_exchange_equivalent(self):
er = rockefeller.ExchangeRates(store=mock.Mock())
er.store.get_exchange_rate.return_value = None
rate = er.get_exchange_rate(base_currency=usd, currency=eur)
assert er.store.get_exchange_rate.call_count == 2
er.store.get_exchange_rate.assert_called_with(eur, usd)
assert rate is None
def test_get_exchange_rate(self):
er = rockefeller.ExchangeRates(store=mock.Mock())
er.store.get_exchange_rate.return_value = 1.0
rate = er.get_exchange_rate(base_currency=usd, currency=eur)
er.store.get_exchange_rate.assert_called_once_with(usd, eur)
assert rate == 1.0
def test_add_exchange_rate(self):
er = rockefeller.ExchangeRates(store=mock.Mock())
er.add_exchange_rate(base_currency=usd,
currency=eur,
exchange_rate=1.0)
er.store.add_exchange_rate.assert_called_once_with(usd, eur, '1.0')
def test_remove_exchange_rate(self):
er = rockefeller.ExchangeRates(store=mock.Mock())
er.remove_exchange_rate(base_currency=usd, currency=eur)
er.store.remove_exchange_rate.assert_called_once_with(usd, eur)