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 System.Threading.Tasks;
+using NUnit.Framework;
+using QuantConnect.Algorithm.CSharp;
+using QuantConnect.Configuration;
+using QuantConnect.Lean.Engine;
+using QuantConnect.Util.RateLimit;
+
+namespace QuantConnect.Tests.Engine
+{
+    [TestFixture]
+    public class AlgorithmTimeLimitManagerTests
+    {
+        [OneTimeSetUp]
+        public void TearUp()
+        {
+            // clear the config
+            Config.Reset();
+        }
+
+        [OneTimeTearDown]
+        public void TearDown()
+        {
+            // clear the config
+            Config.Reset();
+        }
+
+        [Test]
+        public void StopsAlgorithm()
+        {
+            Config.Set("algorithm-manager-time-loop-maximum", "0.05");
+            var parameter = new RegressionTests.AlgorithmStatisticsTestParameters(nameof(TrainingInitializeRegressionAlgorithm),
+                new Dictionary<string, string>(),
+                Language.CSharp,
+                AlgorithmStatus.RuntimeError);
+
+            AlgorithmRunner.RunLocalBacktest(parameter.Algorithm,
+                parameter.Statistics,
+                parameter.Language,
+                parameter.ExpectedFinalStatus);
+        }
+
+        [Test]
+        public void RaceCondition()
+        {
+            var timeManager = new AlgorithmTimeLimitManager(TokenBucket.Null, TimeSpan.FromMinutes(1));
+
+            const int loops = 1000000;
+            var task = Task.Factory.StartNew(() =>
+            {
+                var count = 0;
+                while (count++ < loops)
+                {
+                    var result = timeManager.IsWithinLimit();
+                    Assert.IsTrue(result.IsWithinCustomLimits, result.ErrorMessage);
+                }
+            });
+            var task2 = Task.Factory.StartNew(() =>
+            {
+                var count = 0;
+                while (count++ < loops)
+                {
+                    timeManager.StartNewTimeStep();
+                }
+            });
+
+            Task.WaitAll(task, task2);
+        }
+    }
+}