aspnetcore/test/Microsoft.TestCommon/PreserveSyncContextAttribut...

26 lines
885 B
C#

// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
using System.Threading;
namespace Microsoft.TestCommon
{
/// <summary>
/// Preserves the current <see cref="SynchronizationContext"/>. Use this attribute on
/// tests which modify the current <see cref="SynchronizationContext"/>.
/// </summary>
public class PreserveSyncContextAttribute : Xunit.BeforeAfterTestAttribute
{
private SynchronizationContext _syncContext;
public override void Before(System.Reflection.MethodInfo methodUnderTest)
{
_syncContext = SynchronizationContext.Current;
}
public override void After(System.Reflection.MethodInfo methodUnderTest)
{
SynchronizationContext.SetSynchronizationContext(_syncContext);
}
}
}