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quantconnect--lean/Algorithm.Python/TickHistoryRequestWithoutTickSubscriptionRegressionAlgorithm.py
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2026-07-13 13:02:50 +08:00

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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 datetime import timedelta
from AlgorithmImports import *
### <summary>
### Regression algorithm asserting that historical data can be requested with tick resolution without requiring
### a tick resolution subscription
### </summary>
class TickHistoryRequestWithoutTickSubscriptionRegressionAlgorithm(QCAlgorithm):
def initialize(self):
self.set_start_date(2013, 10, 8)
self.set_end_date(2013, 10, 8)
# Subscribing SPY and IBM with daily and hour resolution instead of tick resolution
spy = self.add_equity("SPY", Resolution.DAILY).symbol
ibm = self.add_equity("IBM", Resolution.HOUR).symbol
# Requesting history for SPY and IBM (separately) with tick resolution
spy_history = self.history[Tick](spy, timedelta(days=1), Resolution.TICK)
if not any(spy_history):
raise AssertionError("SPY tick history is empty")
ibm_history = self.history[Tick](ibm, timedelta(days=1), Resolution.TICK)
if not any(ibm_history):
raise AssertionError("IBM tick history is empty")
# Requesting history for SPY and IBM (together) with tick resolution
spy_ibm_history = self.history[Tick]([spy, ibm], timedelta(days=1), Resolution.TICK)
if not any(spy_ibm_history):
raise AssertionError("Compound SPY and IBM tick history is empty")
self.quit()