assertTrue(result.contains("maxReferralLevel=0x3"));
        assertTrue(result.contains("filename=" + filename));
    }

    @Test
    @DisplayName("toString should handle null path")
    void testToStringWithNullPath() {
        // Given
        trans2GetDfsReferral = new Trans2GetDfsReferral(mockConfig, "test");

        // When
        String result = trans2GetDfsReferral.toString();

        // Then