public void GetAssociatedObjectWithAStringKey()
        {
            key1.SetValue("NakedObjects.SystemTest.ObjectFinderSingleKey.Employee|foo");
            payee1.AssertObjectIsEqual(emp1);

            payee1.ClearObject();

            key1.SetValue("NakedObjects.SystemTest.ObjectFinderSingleKey.Employee|bar");
            payee1.AssertObjectIsEqual(emp2);
        }