public void EvaluateInheritsFrom()
{
IClass objcls = (IClass)this.machine.GetGlobalObject("Object");
IClass rectcls = this.machine.CreateClass("Rectangle", objcls, "x y width rect", "");
this.machine.SetGlobalObject("Rectangle", rectcls);
Assert.AreEqual(true, this.Evaluate("Rectangle inheritsFrom: Object"));
}