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test reimplementation of brmbar.Currency.rates method

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TMA 2025-04-22 00:00:38 +02:00
parent f0058aad68
commit 0bff27da29
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17
brmbar3/brmbar/Currency.py
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@ -57,6 +57,23 @@ class Currency:
return (buy, sell)
def rates2(self, other):
# the original code for compare testing
res = self.db.execute_and_fetch("SELECT rate, rate_dir FROM exchange_rates WHERE target = %s AND source = %s AND valid_since <= NOW() ORDER BY valid_since DESC LIMIT 1", [self.id, other.id])
if res is None:
raise NameError("Currency.rate(): Unknown conversion " + other.name() + " to " + self.name())
buy_rate, buy_rate_dir = res
buy = buy_rate if buy_rate_dir == "target_to_source" else 1/buy_rate
res = self.db.execute_and_fetch("SELECT rate, rate_dir FROM exchange_rates WHERE target = %s AND source = %s AND valid_since <= NOW() ORDER BY valid_since DESC LIMIT 1", [other.id, self.id])
if res is None:
raise NameError("Currency.rate(): Unknown conversion " + self.name() + " to " + other.name())
sell_rate, sell_rate_dir = res
sell = sell_rate if sell_rate_dir == "source_to_target" else 1/sell_rate
return (buy, sell)
def convert(self, amount, target):
res = self.db.execute_and_fetch("SELECT rate, rate_dir FROM exchange_rates WHERE target = %s AND source = %s AND valid_since <= NOW() ORDER BY valid_since DESC LIMIT 1", [target.id, self.id])
if res is None: