public void ExecuteBasicInstSize()
{
Machine machine = new Machine();
object nil = machine.UndefinedObjectClass;
Assert.IsNotNull(nil);
Assert.IsInstanceOfType(nil, typeof(IClass));
Block block = this.compiler.CompileBlock("^UndefinedObject new basicInstSize");
Assert.IsNotNull(block);
object result = block.Execute(machine, null);
Assert.AreEqual(0, result);
}