NUnit без проблем

using System;

using NUnit.Framework;

namespace Test
{
    [TestFixture]
    internal class Tests : AnBaseNu
    {
        [Test]
        public void Test1()
        {
            Console.WriteLine("Running       Test1...");
        }

        [Test]
        public void Test2()
        {
            Console.WriteLine("Running       Test2...");
        }
    }

    internal class AnBaseNu
    {
        [TearDown]
        public void Cleanup()
        {
            Console.WriteLine("Running     TearDown");
        }

        [OneTimeTearDown]
        public void CleanupOnce()
        {
            Console.WriteLine("Running   OneTimeTearDown");
        }

        [SetUp]
        public void Init()
        {
            Console.WriteLine("Running     SetUp");
        }

        [OneTimeSetUp]
        public void InitOnce()
        {
            Console.WriteLine("Running   OneTimeSetUp");
        }
    }
}