wehub-resource-sync
94 lines
3.0 KiB
C#
94 lines
3.0 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 NUnit.Framework;
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using QuantConnect.Util;
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namespace QuantConnect.Tests.Common.Util
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{
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[TestFixture]
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public class DisposableExtensionsTests
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{
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#pragma warning disable CA2000
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[Test]
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public void ReturnsFalseForNullDisposable()
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{
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IDisposable disposable = null;
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var result = disposable.DisposeSafely();
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Assert.IsFalse(result);
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}
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[Test]
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public void ReturnsTrueOnSuccessfulDisposal()
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{
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var disposable = new Disposable();
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var result = disposable.DisposeSafely();
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Assert.IsTrue(result);
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Assert.IsTrue(disposable.DisposeWasCalled);
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}
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[Test]
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public void InvokesErrorHandlerOnExceptionDuringDispose()
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{
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var errorHandlerWasInvoked = false;
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var disposable = new Disposable(throwException: true);
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var result = disposable.DisposeSafely(error => errorHandlerWasInvoked = true);
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Assert.IsFalse(result);
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Assert.IsTrue(errorHandlerWasInvoked);
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Assert.IsTrue(disposable.DisposeWasCalled);
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}
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[Test]
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public void SwallowsObjectDisposedException()
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{
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var errorHandlerWasInvoked = false;
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var disposable = new Disposable();
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disposable.Dispose();
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Assert.IsTrue(disposable.DisposeWasCalled);
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var result = disposable.DisposeSafely(error => errorHandlerWasInvoked = true);
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Assert.IsTrue(result);
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Assert.IsFalse(errorHandlerWasInvoked);
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}
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private sealed class Disposable : IDisposable
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{
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private readonly bool _throwException;
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public bool DisposeWasCalled { get; private set; }
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public Disposable(bool throwException = false)
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{
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_throwException = throwException;
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}
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public void Dispose()
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{
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if (DisposeWasCalled)
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{
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throw new ObjectDisposedException(GetType().FullName);
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}
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DisposeWasCalled = true;
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if (_throwException)
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{
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throw new RegressionTestException();
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}
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}
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}
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}
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}
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