def test_get_btc_currency_when_not_loaded_returns_none(self):
# Arrange
mock_client = MagicMock()
mock_client.name = "Binance"
mock_client.precisionMode = 2
provider = CCXTInstrumentProvider(client=mock_client)
provider.load_all()
# Act
currency = provider.currency("BTC")
# Assert
self.assertIsNone(currency)
def test_get_btc_currency_when_loaded_returns_expected_currency(self):
# Arrange
with open(TEST_PATH + "markets.json") as response:
markets = json.load(response)
with open(TEST_PATH + "currencies.json") as response:
currencies = json.load(response)
mock_client = MagicMock()
mock_client.name = "Binance"
mock_client.precisionMode = 2
mock_client.markets = markets
mock_client.currencies = currencies
provider = CCXTInstrumentProvider(client=mock_client)
provider.load_all()
# Act
currency = provider.currency("BTC")
# Assert
self.assertEqual(Currency, type(currency))
self.assertEqual("BTC", currency.code)
self.assertEqual(8, currency.precision)
