You are looking for the FixtureSetUp / FixtureTearDown attribute called TestFixtureSetUp, which is called at the class level, that is, it will be configured once for all tests in one test class.
The Setup / TearDown attribute is invoked at the method level.
MbUnit . .
[assembly: AssemblyCleanUp(typeof(AssemblyCleaner))]
...
public class AssemblyCleaner
{
[SetUp]
public static void SetUp()
{
Console.WriteLine("Setting up {0}", typeof(AssemblyCleanUp).Assembly.FullName);
}
[TearDown]
public static void TearDown()
{
Console.WriteLine("Cleaning up {0}", typeof(AssemblyCleanUp).Assembly.FullName);
}
}