Files
quantconnect--lean/Algorithm.Python/TwoLegCurrencyConversionRegressionAlgorithm.py
T
Alexandre Catarino 3e52816f6e
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Fixes GetBuyingPowerModel Method of DefaultBrokerageModel (#6215)
`CashBuyingPowerModel`, which reflected on `AlphaStreamBrokerageModel`, a margin-only brokerage.

It also didn't consider the account type, so `InteractiveBrokersBrokerageModel` was using the margin model even if `AccountType.Cash` was selected.

Removes `GetBuyingPowerModel` method from other Brokerage Models when their cases are covered by `DefaultBrokerageModel`

Fixes some typoes in `TradierBrokerageModel`

Fixes unit and regression tests. For the regression tests, we have explicitly set the brokerage model.
2022-02-17 19:41:55 -03:00

63 lines
2.8 KiB
Python

### QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
### Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
###
### Licensed under the Apache License, Version 2.0 (the "License");
### you may not use this file except in compliance with the License.
### You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
###
### Unless required by applicable law or agreed to in writing, software
### distributed under the License is distributed on an "AS IS" BASIS,
### WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
### See the License for the specific language governing permissions and
### limitations under the License.
from AlgorithmImports import *
### <summary>
### Regression algorithm which tests that a two leg currency conversion happens correctly
### </summary>
class TwoLegCurrencyConversionRegressionAlgorithm(QCAlgorithm):
def Initialize(self):
self.SetStartDate(2018, 4, 4)
self.SetEndDate(2018, 4, 4)
self.SetBrokerageModel(BrokerageName.GDAX, AccountType.Cash);
# GDAX doesn't have LTCETH or ETHLTC, but they do have ETHUSD and LTCUSD to form a path between ETH and LTC
self.SetAccountCurrency("ETH")
self.SetCash("ETH", 100000)
self.SetCash("LTC", 100000)
self.SetCash("USD", 100000)
self._ethUsdSymbol = self.AddCrypto("ETHUSD", Resolution.Minute).Symbol
self._ltcUsdSymbol = self.AddCrypto("LTCUSD", Resolution.Minute).Symbol
def OnData(self, data):
if not self.Portfolio.Invested:
self.MarketOrder(self._ltcUsdSymbol, 1)
def OnEndOfAlgorithm(self):
ltcCash = self.Portfolio.CashBook["LTC"]
conversionSymbols = [x.Symbol for x in ltcCash.CurrencyConversion.ConversionRateSecurities]
if len(conversionSymbols) != 2:
raise ValueError(
f"Expected two conversion rate securities for LTC to ETH, is {len(conversionSymbols)}")
if conversionSymbols[0] != self._ltcUsdSymbol:
raise ValueError(
f"Expected first conversion rate security from LTC to ETH to be {self._ltcUsdSymbol}, is {conversionSymbols[0]}")
if conversionSymbols[1] != self._ethUsdSymbol:
raise ValueError(
f"Expected second conversion rate security from LTC to ETH to be {self._ethUsdSymbol}, is {conversionSymbols[1]}")
ltcUsdValue = self.Securities[self._ltcUsdSymbol].GetLastData().Value
ethUsdValue = self.Securities[self._ethUsdSymbol].GetLastData().Value
expectedConversionRate = ltcUsdValue / ethUsdValue
actualConversionRate = ltcCash.ConversionRate
if actualConversionRate != expectedConversionRate:
raise ValueError(
f"Expected conversion rate from LTC to ETH to be {expectedConversionRate}, is {actualConversionRate}")