def test_get_rates_valid_code(self):
all_rates = get_rates('USD')
# Check if return value of get_rates dictionary
self.assertTrue(isinstance(all_rates, dict))
# Test at least one rate value returned
self.assertTrue(len(all_rates.keys()))
# Test one rate in returned dict is float value
self.assertTrue(isinstance(all_rates.get('INR'), float))
def test_get_rates_valid_code(self):
all_rates = get_rates('USD')
# Check if return value of get_rates dictionary
self.assertTrue(isinstance(all_rates, dict))
# Test at least one rate value returned
self.assertTrue(len(all_rates.keys()))
# Test one rate in returned dict is float value
self.assertTrue(isinstance(all_rates.get('INR'), float))
def test_get_rates_with_date(self):
date_obj = datetime.datetime.strptime('2010-05-10', "%Y-%m-%d").date()
all_rates = get_rates('USD', date_obj)
# Check if return value of get_rates dictionary
self.assertTrue(isinstance(all_rates, dict))
# Test at least one rate value returned
self.assertTrue(len(all_rates.keys()))
# Test one rate in returned dict is float value
self.assertTrue(isinstance(all_rates.get('INR'), float))
def getFxRates():
"""Retrieve the current foreign exchange rates for USD and GBP"""
forex = []
forex = get_rates('USD')
forex = pd.DataFrame([forex], columns=forex.keys())
#self.forex.loc[:, 'GBP']
GBPUSD = forex['GBP'].values
date_obj = datetime.datetime(2020, 5, 17)
# print(date_obj)
test = get_rate('USD', 'GBP', date_obj)
# print(test)
return GBPUSD
def test_get_rates_with_date(self):
date_obj = datetime.datetime.strptime('2010-05-10', "%Y-%m-%d").date()
all_rates = get_rates('USD', date_obj)
# Check if return value of get_rates dictionary
self.assertTrue(isinstance(all_rates, dict))
# Test at least one rate value returned
self.assertTrue(len(all_rates.keys()))
# Test one rate in returned dict is float value
self.assertTrue(isinstance(all_rates.get('INR'), float))
def check_abb(abb):
if abb not in get_rates('USD'):
return False
else:
return True
def main(args):
# argument parser setup
parser = argparse.ArgumentParser(description='currency converter')
parser.add_argument('-a',
'--amount',
type=float,
help='Amount to convert',
required=True)
parser.add_argument('-i',
'--input_currency',
type=str,
help='Currency to convert',
required=True)
parser.add_argument('-o',
'--output_currency',
type=str,
help='Currency to be converted to',
required=False)
if args:
arguments = parser.parse_args(args)
else:
arguments = parser.parse_args()
# get currency exchange rates
converter = forex_python.converter.CurrencyRates()
output = {}
# check input arguments, convert symbols to 3 letter code
if len(arguments.input_currency) > 3:
fatalError("Invalid input currency!")
else:
input_currency = symbol_converter(arguments.input_currency)
if arguments.output_currency:
if len(arguments.output_currency) > 3:
fatal_error("Invalid output currency!")
else:
output_currency = symbol_converter(arguments.output_currency)
# convert input currency to desired output currency
try:
output[arguments.output_currency] = converter.convert(
input_currency, output_currency, arguments.amount)
except (forex_python.converter.RatesNotAvailableError,
forex_python.converter.DecimalFloatMismatchError):
fatal_error("Unable to convert, "
"chceck currency format or "
"if currency you've entered is supported.")
output = {
symbol_converter(key): round(value, 3)
for key, value in output.items()
}
else:
# convert input currency to all availible currencies
try:
currency_dict = converter.get_rates(input_currency)
except (forex_python.converter.RatesNotAvailableError,
forex_python.converter.DecimalFloatMismatchError):
fatal_error("Unable to convert, "
"chceck input currency format or "
"if currency you've entered is supported.")
output = {
key: round(value * arguments.amount, 3)
for key, value in currency_dict.items()
}
del output[input_currency]
# print or return results in specified format
result = json.dumps(
{
"input": {
"amount": arguments.amount,
"currency": input_currency
},
"output": output
},
indent=4)
if args:
return result
else:
print(result)
