def setUp(self):
# Open non-persisted db
repository = Rates(':memory:', True)
# Pre-register some exchange rates
self.__knownRates = [('PSD', 2.0), ('USD', 1.6), ('RUB', 1.9),
('TRY', 0.725)]
for (currency, rate) in self.__knownRates:
repository.setRate(currency, rate)
self.__converter = Converter(repository)
class ConverterTests(unittest.TestCase):
def setUp(self):
# Open non-persisted db
repository = Rates(':memory:', True)
# Pre-register some exchange rates
self.__knownRates = [('PSD', 2.0), ('USD', 1.6), ('RUB', 1.9),
('TRY', 0.725)]
for (currency, rate) in self.__knownRates:
repository.setRate(currency, rate)
self.__converter = Converter(repository)
def test_someConversions(self):
asserts = [('RUB', 'TRY', '4.85', '1.85'), \
('EUR', 'USD', '3.70', '5.92'), \
('TRY', 'TRY', '0.45', '0.45'), \
('EUR', 'EUR', '4.85', '4.85'), \
('PSD', 'USD', '0.00', '0.00'), \
('TRY', 'EUR', '7.87', '10.86'), \
]
for (fromCurrency, toCurrency, value, expectedValue) in asserts:
self.assertEqual(
self.__converter.convert_and_round(fromCurrency, toCurrency,
Decimal(value)),
Decimal(expectedValue))
def test_someInvalidConversions(self):
asserts = [('RUB', 'CCC'), \
('CCC', 'USD'), \
('CCC', 'CCC'), \
]
for (fromCurrency, toCurrency) in asserts:
self.assertRaises(ValueError, self.__converter.convert_and_round,
fromCurrency, toCurrency, Decimal('1.00'))
def test_idempotency(self):
for value in list(
map(Decimal, ['1246.87', '0.15', '875.00', '122.36', '0.01'])):
for (from_currency, _) in self.__knownRates:
for (to_currency, _) in self.__knownRates:
converted_value = self.__converter.convert(
to_currency, from_currency, value)
idempotent_value = self.__converter.convert_and_round(
from_currency, to_currency, converted_value)
self.assertEqual(idempotent_value, value)
def setUp(self):
server.server.config['TESTING'] = True
self.app = server.server.test_client()
rates = Rates(':memory:', True)
server.converter = Converter(rates)
rates.setRate('USD', 1.45)
rates.setRate('TYR', 0.723)
rates.setRate('KD', 1.45)
rates.setRate('RTATATTATATA', 1.45)
def setUp(self):
# Open non-persisted db
repository = Rates(':memory:', True)
# Pre-register some exchange rates
self.__knownRates = [('PSD', 2.0), ('USD', 1.6), ('RUB', 1.9), ('TRY', 0.725)]
for (currency, rate) in self.__knownRates:
repository.setRate(currency, rate)
self.__converter = Converter(repository)
class ConverterTests(unittest.TestCase):
def setUp(self):
# Open non-persisted db
repository = Rates(':memory:', True)
# Pre-register some exchange rates
self.__knownRates = [('PSD', 2.0), ('USD', 1.6), ('RUB', 1.9), ('TRY', 0.725)]
for (currency, rate) in self.__knownRates:
repository.setRate(currency, rate)
self.__converter = Converter(repository)
def test_someConversions(self):
asserts = [('RUB', 'TRY', '4.85', '1.85'), \
('EUR', 'USD', '3.70', '5.92'), \
('TRY', 'TRY', '0.45', '0.45'), \
('EUR', 'EUR', '4.85', '4.85'), \
('PSD', 'USD', '0.00', '0.00'), \
('TRY', 'EUR', '7.87', '10.86'), \
]
for (fromCurrency, toCurrency, value, expectedValue) in asserts:
self.assertEqual(self.__converter.convert_and_round(fromCurrency, toCurrency, Decimal(value)), Decimal(expectedValue))
def test_someInvalidConversions(self):
asserts = [('RUB', 'CCC'), \
('CCC', 'USD'), \
('CCC', 'CCC'), \
]
for (fromCurrency, toCurrency) in asserts:
self.assertRaises(ValueError, self.__converter.convert_and_round, fromCurrency, toCurrency, Decimal('1.00'))
def test_idempotency(self):
for value in list(map(Decimal, ['1246.87', '0.15', '875.00', '122.36', '0.01'])):
for (from_currency, _) in self.__knownRates:
for (to_currency, _) in self.__knownRates:
converted_value = self.__converter.convert(to_currency, from_currency, value)
idempotent_value = self.__converter.convert_and_round(from_currency, to_currency, converted_value)
self.assertEqual(idempotent_value, value)
if not query:
return make_error_response()
value, origin_currency, target_currency = query
try:
converted_value = converter.convert_and_round(origin_currency, target_currency, value)
except:
return make_error_response()
result = '%s %s = %s %s' % (value, origin_currency, converted_value, target_currency)
return jsonify(answer = result)
def make_error_response():
return jsonify(answer = "I' sorry Dave. I'm afraid. I can't do that"), '500 UnknownError'
if __name__ == "__main__":
# Parse arguments
db_file = sys.argv[1] if len(sys.argv) > 1 else "rates.pdl"
debug = '--debug' in sys.argv
# Load data from db
rates = Rates(db_file, False)
print("%s exchange rates loaded from %s" % (rates.getRatesCount(), db_file))
# Create converter service
converter = Converter(rates)
# Start server
server.run(debug=True)
