def exchange_rate(self, data):
form = ExchangeForm.from_json(data)
if not form.validate():
return -1, str(form.errors), {}
currency_from = form.data["currency_from"].upper()
currency_to = form.data["currency_to"].upper()
if currency_from not in all_currencies():
return -1, "wrong currency", {}
if currency_to not in all_currencies():
return -1, "wrong currency", {}
times = 0
while True:
times += 1
ex = exchange.rate(currency_from, currency_to)
if ex or times == 5:
break
if not ex:
return -1, "timeout", {}
result = {
"currency_from": currency_from,
"currency_to": currency_to,
"rate": str(ex),
}
return 0, "success", result
def test_rate_is_none():
rate = exchange.rate('USD', 'INVID')
assert rate is None
def test_rate():
rate = exchange.rate('USD', 'CNY')
assert rate > 6
assert rate < 7
def test_rate_is_1():
assert exchange.rate('USD', 'USD') == 1.00
# -*- coding: utf-8 -*-
"""
Created on Sun Jun 17 01:15:42 2018
@author: actionfocus
"""
import exchange
print exchange.rate('USD', 'CNY')