[TestFixture]
public class BaseTest
{
	[SetUp]
	public void SetUp()
	{
		OnSetUp();
	}

	[TearDown]
	public void TearDown()
	{
		OnTearDown();
	}

	protected virtual void OnSetUp()
	{
	}

	protected virtual void OnTearDown()
	{
	}
}

[TestFixture]
public class InheritedTest : BaseTest
{
	private IDisposable? disposable;

	protected override void OnSetUp()
	{
		base.OnSetUp();
		disposable = new ADisposable();
	}

	protected override void OnTearDown()
	{
		disposable?.Dispose();
		base.OnTearDown();
	}
}