DfsReferralDataInternal concreteNext = concreteImplementation.next();
            assertNotNull(concreteNext);
        }

        @Test
        @DisplayName("Should set link")
        void testSetLink() {
            String link = "\\\\server\\share\\link";

            // Test with mock
            doNothing().when(mockReferralData).setLink(link);
            mockReferralData.setLink(link);