chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
@@ -0,0 +1,141 @@
+/*
+ * 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.
+*/
+
+using System;
+using System.Collections.Generic;
+using QuantConnect.Data;
+using QuantConnect.Interfaces;
+
+namespace QuantConnect.Algorithm.CSharp
+{
+    /// <summary>
+    /// Regression algorithm reproduces GH issue #8023, where fill forward resolution will no get updated in some cases on security removals
+    /// </summary>
+    public class FillForwardResolutionAdjustedOnRemovalRegressionAlgorithm : QCAlgorithm, IRegressionAlgorithmDefinition
+    {
+        private readonly Queue<DateTime> _expectedDataTimes = new(new DateTime[]
+        {
+            new DateTime(2013, 10, 7, 9, 31, 0),
+            new DateTime(2013, 10, 7, 16, 0, 0),
+            new DateTime(2013, 10, 8, 16, 0, 0),
+            new DateTime(2013, 10, 8, 16, 0, 0), // minute data & we remove it
+            new DateTime(2013, 10, 9, 16, 0, 0),
+            new DateTime(2013, 10, 10, 16, 0, 0)
+        });
+
+        public override void Initialize()
+        {
+            SetStartDate(2013, 10, 07);
+            SetEndDate(2013, 10, 10);
+
+            AddFuture("ES", Resolution.Minute);
+            AddEquity("SPY", Resolution.Daily);
+        }
+
+        /// <summary>
+        /// OnData event is the primary entry point for your algorithm. Each new data point will be pumped in here.
+        /// </summary>
+        /// <param name="slice">Slice object keyed by symbol containing the stock data</param>
+        public override void OnData(Slice slice)
+        {
+            var expected = _expectedDataTimes.Dequeue();
+            if (expected != Time)
+            {
+                throw new RegressionTestException($"Unexpected data time {expected} != {Time}");
+            }
+
+            if (ActiveSecurities.ContainsKey("/ES"))
+            {
+                if (slice.ContainsKey("/ES"))
+                {
+                    RemoveSecurity("/ES");
+                }
+            }
+            else if (Time == new DateTime(2013, 10, 8, 16, 0, 0))
+            {
+                // let's re add it
+                AddFuture("ES", Resolution.Minute);
+            }
+        }
+
+        public override void OnEndOfAlgorithm()
+        {
+            if (_expectedDataTimes.Count != 0)
+            {
+                throw new RegressionTestException($"OnEndOfAlgorithm(): Unexpected data times!");
+            }
+        }
+
+        /// <summary>
+        /// This is used by the regression test system to indicate if the open source Lean repository has the required data to run this algorithm.
+        /// </summary>
+        public bool CanRunLocally { get; } = true;
+
+        /// <summary>
+        /// This is used by the regression test system to indicate which languages this algorithm is written in.
+        /// </summary>
+        public List<Language> Languages { get; } = new() { Language.CSharp };
+
+        /// <summary>
+        /// Data Points count of all timeslices of algorithm
+        /// </summary>
+        public long DataPoints => 852;
+
+        /// <summary>
+        /// Data Points count of the algorithm history
+        /// </summary>
+        public int AlgorithmHistoryDataPoints => 0;
+
+        /// <summary>
+        /// Final status of the algorithm
+        /// </summary>
+        public AlgorithmStatus AlgorithmStatus => AlgorithmStatus.Completed;
+
+        /// <summary>
+        /// This is used by the regression test system to indicate what the expected statistics are from running the algorithm
+        /// </summary>
+        public Dictionary<string, string> ExpectedStatistics => new Dictionary<string, string>
+        {
+            {"Total Orders", "0"},
+            {"Average Win", "0%"},
+            {"Average Loss", "0%"},
+            {"Compounding Annual Return", "0%"},
+            {"Drawdown", "0%"},
+            {"Expectancy", "0"},
+            {"Start Equity", "100000"},
+            {"End Equity", "100000"},
+            {"Net Profit", "0%"},
+            {"Sharpe Ratio", "0"},
+            {"Sortino Ratio", "0"},
+            {"Probabilistic Sharpe Ratio", "0%"},
+            {"Loss Rate", "0%"},
+            {"Win Rate", "0%"},
+            {"Profit-Loss Ratio", "0"},
+            {"Alpha", "0"},
+            {"Beta", "0"},
+            {"Annual Standard Deviation", "0"},
+            {"Annual Variance", "0"},
+            {"Information Ratio", "-5.677"},
+            {"Tracking Error", "0.271"},
+            {"Treynor Ratio", "0"},
+            {"Total Fees", "$0.00"},
+            {"Estimated Strategy Capacity", "$0"},
+            {"Lowest Capacity Asset", ""},
+            {"Portfolio Turnover", "0%"},
+            {"Drawdown Recovery", "0"},
+            {"OrderListHash", "d41d8cd98f00b204e9800998ecf8427e"}
+        };
+    }
+}