[TestFixture]
internal sealed class LostSynchronizationContext
{
    private SynchronizationContext m_OriginalSynchronizationContext;
    private TestSynchronizationContext m_TestSynchronizationContext;

    [OneTimeSetUp]
    public void SetContext()
    {
        m_TestSynchronizationContext = new TestSynchronizationContext();
        m_OriginalSynchronizationContext = SynchronizationContext.Current;
        SynchronizationContext.SetSynchronizationContext(m_TestSynchronizationContext);
    }

    [OneTimeTearDown]
    public void ResetContext()
    {
        SynchronizationContext.SetSynchronizationContext(m_OriginalSynchronizationContext);
    }

    [SetUp]
    public void Setup()
    {
        Assert.That(SynchronizationContext.Current, Is.SameAs(m_TestSynchronizationContext));
    }

    [Test]
    public void VerifySynchronized()
    {
        Assert.That(SynchronizationContext.Current, Is.SameAs(m_TestSynchronizationContext));
    }

    public class TestSynchronizationContext : SynchronizationContext
    {
    }
}