public void SetUp()
{
machine = new Machine();
ns = machine.CreateNamespace("foo");
}
public Namespace CreateNamespace(string name)
{
if (this.namespaces.ContainsKey(name))
throw new InvalidOperationException(string.Format("Namespace '{0}' already exists", name));
Namespace ns = new Namespace(this, name);
this.namespaces[ns.Name] = ns;
return ns;
}