def test_handle_bars_with_no_bars_logs_and_continues(self):
# Arrange
bar_type = TestStubs.bartype_gbpusd_1sec_mid()
strategy = TradingStrategy()
strategy.register(
trader_id=self.trader_id,
portfolio=self.portfolio,
msgbus=self.msgbus,
cache=self.cache,
clock=self.clock,
logger=self.logger,
)
ema = ExponentialMovingAverage(10)
strategy.register_indicator_for_bars(bar_type, ema)
# Act
strategy.handle_bars([])
# Assert
assert ema.count == 0
def test_handle_bars_updates_indicator_registered_for_bars(self):
# Arrange
bar_type = TestStubs.bartype_audusd_1min_bid()
strategy = TradingStrategy()
strategy.register(
trader_id=self.trader_id,
portfolio=self.portfolio,
msgbus=self.msgbus,
cache=self.cache,
clock=self.clock,
logger=self.logger,
)
ema = ExponentialMovingAverage(10)
strategy.register_indicator_for_bars(bar_type, ema)
bar = TestStubs.bar_5decimal()
# Act
strategy.handle_bars([bar])
# Assert
assert ema.count == 1
def test_register_indicator_for_multiple_data_sources(self):
# Arrange
strategy = TradingStrategy()
strategy.register(
trader_id=self.trader_id,
portfolio=self.portfolio,
msgbus=self.msgbus,
cache=self.cache,
clock=self.clock,
logger=self.logger,
)
ema = ExponentialMovingAverage(10)
bar_type = TestStubs.bartype_audusd_1min_bid()
# Act
strategy.register_indicator_for_quote_ticks(AUDUSD_SIM.id, ema)
strategy.register_indicator_for_quote_ticks(GBPUSD_SIM.id, ema)
strategy.register_indicator_for_trade_ticks(AUDUSD_SIM.id, ema)
strategy.register_indicator_for_bars(bar_type, ema)
assert len(strategy.registered_indicators) == 1
assert ema in strategy.registered_indicators
def test_register_indicator_for_bars_when_already_registered(self):
# Arrange
strategy = TradingStrategy()
strategy.register(
trader_id=self.trader_id,
portfolio=self.portfolio,
msgbus=self.msgbus,
cache=self.cache,
clock=self.clock,
logger=self.logger,
)
ema1 = ExponentialMovingAverage(10)
ema2 = ExponentialMovingAverage(10)
bar_type = TestStubs.bartype_audusd_1min_bid()
# Act
strategy.register_indicator_for_bars(bar_type, ema1)
strategy.register_indicator_for_bars(bar_type, ema2)
strategy.register_indicator_for_bars(bar_type, ema2)
assert len(strategy.registered_indicators) == 2
assert ema1 in strategy.registered_indicators
assert ema2 in strategy.registered_indicators
