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
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+/*
+ * 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 NUnit.Framework;
+using QuantConnect.Algorithm.Framework;
+using QuantConnect.Data.UniverseSelection;
+using QuantConnect.Securities;
+using QuantConnect.Securities.Equity;
+using QuantConnect.Tests.Common.Data.UniverseSelection;
+
+namespace QuantConnect.Tests.Algorithm.Framework
+{
+    [TestFixture]
+    public class NotifiedSecurityChangesTests
+    {
+        [Test]
+        public void UpdateCallsDisposeOnDisposableInstances()
+        {
+            var disposable = new Disposable(Symbols.SPY);
+            var dictionary = new Dictionary<Symbol, Disposable>
+            {
+                [Symbols.SPY] = disposable
+            };
+
+            var SPY = new Equity(
+                Symbols.SPY,
+                SecurityExchangeHours.AlwaysOpen(TimeZones.NewYork),
+                new Cash("USD", 1m, 1m),
+                SymbolProperties.GetDefault("USD"),
+                ErrorCurrencyConverter.Instance,
+                new RegisteredSecurityDataTypesProvider(),
+                new SecurityCache()
+            );
+            var changes = SecurityChangesTests.RemovedNonInternal(SPY);
+            NotifiedSecurityChanges.UpdateDictionary(dictionary, changes,
+                security => security.Symbol,
+                security => new Disposable(security.Symbol)
+            );
+
+            Assert.IsTrue(disposable.Disposed);
+        }
+
+        private class Disposable : IDisposable
+        {
+            public bool Disposed { get; private set; }
+            public Symbol Symbol { get; private set; }
+
+            public Disposable(Symbol symbol)
+            {
+                Symbol = symbol;
+            }
+            public void Dispose()
+            {
+                Disposed = true;
+            }
+        }
+    }
+}