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 +1,79 @@
+/*
+ * 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 System.Linq;
+using System.Threading.Tasks;
+using QuantConnect.Optimizer;
+using QuantConnect.Optimizer.Parameters;
+
+namespace QuantConnect.Tests.Optimizer
+{
+    public class FakeLeanOptimizer : LeanOptimizer
+    {
+        private readonly HashSet<string> _backtests = new HashSet<string>();
+
+        public event EventHandler Update;
+
+        public FakeLeanOptimizer(OptimizationNodePacket nodePacket)
+            : base(nodePacket)
+        {
+        }
+
+        protected override string RunLean(ParameterSet parameterSet, string backtestName)
+        {
+            var id = Guid.NewGuid().ToString();
+            _backtests.Add(id);
+
+            Task.Delay(100).ContinueWith(task =>
+            {
+                try
+                {
+                    var sum = parameterSet.Value.Where(pair => pair.Key != "skipFromResultSum").Sum(s => s.Value.ToDecimal());
+                    if (sum != 29)
+                    {
+                        NewResult(BacktestResult.Create(sum, sum / 100).ToJson(), id);
+                    }
+                    else
+                    {
+                        // fail some backtests by passing empty json
+                        NewResult(string.Empty, id);
+                    }
+                }
+                catch
+                {
+                }
+            });
+
+            return id;
+        }
+
+        protected override void AbortLean(string backtestId)
+        {
+            _backtests.Remove(backtestId);
+        }
+
+        protected override void SendUpdate()
+        {
+            OnUpdate();
+        }
+
+        private void OnUpdate()
+        {
+            Update?.Invoke(this, EventArgs.Empty);
+        }
+    }
+}