def test_get_btcusdt_when_loaded_returns_expected_instrument(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()
instrument_id = InstrumentId(Symbol("BTC/USDT"), Venue("BINANCE"))
# Act
instrument = provider.find(instrument_id)
# Assert
self.assertEqual(Instrument, type(instrument))
self.assertEqual(AssetClass.CRYPTO, instrument.asset_class)
self.assertEqual(AssetType.SPOT, instrument.asset_type)
self.assertEqual(BTC, instrument.base_currency)
self.assertEqual(USDT, instrument.quote_currency)
self.assertEqual(USDT, instrument.settlement_currency)
def test_get_btcusdt_when_not_loaded_returns_none(self):
# Arrange
mock_client = MagicMock()
mock_client.name = "Binance"
provider = CCXTInstrumentProvider(client=mock_client)
instrument_id = InstrumentId(Symbol("BTC/USDT"), Venue("BINANCE"))
# Act
instrument = provider.find(instrument_id)
# Assert
self.assertIsNone(instrument)
from nautilus_trader.model.identifiers import InstrumentId
from nautilus_trader.model.identifiers import Symbol
from nautilus_trader.model.identifiers import Venue
from nautilus_trader.model.objects import Money
from tests.test_kit.providers import TestDataProvider
if __name__ == "__main__":
# Setup trading instruments
# Requires an internet connection for the instrument loader
# Alternatively use the TestInstrumentProvider in the test kit
print("Loading instruments...")
instruments = CCXTInstrumentProvider(client=ccxt.binance(), load_all=True)
BINANCE = Venue("BINANCE")
instrument_id = InstrumentId(symbol=Symbol("ETH/USDT"), venue=BINANCE)
ETHUSDT_BINANCE = instruments.find(instrument_id)
# Setup data container
data = BacktestDataContainer()
data.add_instrument(ETHUSDT_BINANCE)
data.add_trade_ticks(ETHUSDT_BINANCE.id, TestDataProvider.ethusdt_trades())
# Instantiate your strategy
strategy = EMACross(
instrument_id=ETHUSDT_BINANCE.id,
bar_spec=BarSpecification(250, BarAggregation.TICK, PriceType.LAST),
fast_ema_period=10,
slow_ema_period=20,
trade_size=Decimal("0.05"),
order_id_tag="001",
)
