public void DoesNotTModifyVariableInUpperFromDerivedScope()
{
var sut = new GlobalScope(null, "root");
sut.SetVariable("a", new String("bottom"), false);
var derived = sut.DeriveFunctionScope();
derived.SetVariable("a", new String("derived"), true);
var innerAa = derived.GetVariable("a", new Runtime(new Processors())).Get(new Runtime(new Processors())) as String;
Assert.Equal("derived", innerAa.Value);
var a = sut.GetVariable("a", new Runtime(new Processors())).Get(new Runtime(new Processors())) as String;
Assert.Equal("bottom", a.Value);
}