def convert():
if request.method == 'GET':
from_currency = request.headers.get('from_currency')
to_currency = request.headers.get('to_currency')
value = request.headers.get('value')
retriever = RateRetriever(RATES_FILE)
converter = CurrencyConverter(from_currency, to_currency, value,
retriever)
converted_value = converter.convert()
return json.dumps(converter.build_response(converted_value), indent=4)
def test_compute_conversion_rate(self):
expected_conversion_rate = Decimal('0.1663')
converter = CurrencyConverter('CZK', 'PLN', None, None)
base = 'USD'
rates = {
"CZK": 22.9508,
"PLN": 3.8174,
"EUR": 0.8923
}
conversion_rate = converter._compute_conversion_rate(base, rates)
self.assertEqual(conversion_rate, expected_conversion_rate)
def test_build_response(self):
expected_response = {
"converted_value": "8000.0000",
"from_currency": "EUR",
"to_currency": "USD",
"original_value": "1000",
"conversion_rate": "1.2890",
"timestamp": "TEST"
}
converter = CurrencyConverter('EUR', 'USD', '1000', self.retriever)
converted_value = Decimal('8000')
converter.conversion_rate = Decimal('1.289')
response = converter.build_response(converted_value)
response["timestamp"] = "TEST"
self.assertDictEqual(response, expected_response)
def test_convert_to_USD(self):
expected_response = Decimal('1121.2000')
converter = CurrencyConverter('EUR', 'USD', '1000', self.retriever)
response = converter.convert()
self.assertEqual(response, expected_response)
def test_convert_from_USD(self):
expected_response = Decimal('60.46341686')
converter = CurrencyConverter('USD', 'PLN', '15,8389', self.retriever)
response = converter.convert()
self.assertEqual(response, expected_response)
def test_convert(self):
expected_response = Decimal('1.302129')
converter = CurrencyConverter('CZK', 'PLN', '7,83', self.retriever)
response = converter.convert()
self.assertEqual(response, expected_response)
def test_currency_not_supported(self):
expected_response = {"ERROR": "Currency not supported"}
converter = CurrencyConverter('LEV', 'PLN', '7,83', self.retriever)
response = converter.convert()
self.assertDictEqual(response, expected_response)