// Then
        assertEquals(nextReferral, result);
        verify(mockReferralData).next();
    }

    @Test
    @DisplayName("Should get link")
    void testGetLink() {
        // Given
        String link = "/test/link";
        when(mockReferralData.getLink()).thenReturn(link);

        // When
        String result = mockReferralData.getLink();

        // Then

            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);