Sandbox::https://github.com/GavinBIC/ironpython3/blob/master/Src/IronPythonTest/Cases/CommonCases.cs

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// Licensed to the .NET Foundation under one or more agreements.

// The .NET Foundation licenses this file to you under the Apache 2.0 License.

// See the LICENSE file in the project root for more information.

using System;

using System.Threading;

using NUnit.Framework;

namespace IronPythonTest.Cases {

public abstract class CommonCases {

private CaseExecuter executor;

[OneTimeSetUp]

public void FixtureSetUp() {

this.executor = new CaseExecuter();

}

public abstract int Test(TestInfo testcase);

protected int TestImpl(TestInfo testcase) {

using var m = testcase.Options.NotParallelSafe ? new Mutex(false, testcase.Name) : null;

m?.WaitOne();

try {

TestContext.Progress.WriteLine(testcase.Name);

return executor.RunTest(testcase);

} catch (Exception e) {

if (e is AggregateException ae) {

ae.Handle((x) => {

Assert.Fail(executor.FormatException(x));

return true;

});

} else {

Assert.Fail(this.executor.FormatException(e));

}

return -1;

} finally {

m?.ReleaseMutex();

}