wehub-resource-sync
135 lines
4.5 KiB
C#
135 lines
4.5 KiB
C#
/*
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* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
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* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Threading;
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using NUnit.Framework;
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using Python.Runtime;
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using QuantConnect.Util;
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namespace QuantConnect.Tests.Common
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{
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[TestFixture, Parallelizable(ParallelScope.All)]
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public class IsolatorTests
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{
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[Test]
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public void WorksCorrectlyUsingWorker()
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{
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using (var worker = new TestWorkerThread())
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{
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var isolator = new Isolator();
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var executed = false;
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var result = isolator.ExecuteWithTimeLimit(
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TimeSpan.FromMilliseconds(100),
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() =>
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{
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executed = true;
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},
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5000,
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workerThread:worker
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);
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Assert.IsTrue(result);
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Assert.IsTrue(executed);
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}
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}
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[Test]
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public void Cancellation()
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{
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var isolator = new Isolator();
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var executed = false;
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var ended = false;
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var canceled = false;
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var result = false;
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try
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{
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result = isolator.ExecuteWithTimeLimit(
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TimeSpan.FromSeconds(5),
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() => {
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executed = true;
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// cancel only once the code block is running so the task can't be canceled before it starts
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isolator.CancellationTokenSource.CancelAfter(TimeSpan.FromMilliseconds(100));
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Thread.Sleep(5000);
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ended = true;
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},
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5000,
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sleepIntervalMillis: 10
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);
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}
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catch (OperationCanceledException)
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{
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canceled = true;
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}
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Assert.IsTrue(canceled);
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Assert.IsFalse(result);
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Assert.IsTrue(executed);
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Assert.IsFalse(ended);
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}
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[TestCase(Language.Python, true)]
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[TestCase(Language.Python, false)]
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[TestCase(Language.CSharp, true)]
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[TestCase(Language.CSharp, false)]
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public void TimeOutWorkCorrectly(Language language, bool useWorker)
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{
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var worker = useWorker ? new TestWorkerThread() : null;
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using (worker)
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{
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var isolator = new Isolator();
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bool result = false;
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try
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{
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if (language == Language.CSharp)
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{
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result = isolator.ExecuteWithTimeLimit(
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TimeSpan.FromMilliseconds(100),
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() => Thread.Sleep(10000), // 10s sleep
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5000,
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workerThread: worker
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);
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}
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else
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{
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result = isolator.ExecuteWithTimeLimit(
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TimeSpan.FromMilliseconds(100),
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() =>
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{
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using (Py.GIL())
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{
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// 10s sleep
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PythonEngine.RunSimpleString("import time; time.sleep(10)");
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}
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},
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5000,
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workerThread: worker
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);
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}
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Assert.Fail($"Was expecting {nameof(TimeoutException)}");
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}
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catch (TimeoutException)
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{
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Assert.IsFalse(result);
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}
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}
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}
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private class TestWorkerThread : WorkerThread
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{
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}
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}
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}
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