assertTrue(result.contains("altPath="));
        assertTrue(result.contains("node="));
        assertTrue(result.endsWith("]"));
    }

    @Test
    public void testToStringWithNulls() {
        // Create minimal referral
        ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);

        bb.putShort((short) 1);
        bb.putShort((short) 24);

            assertTrue(result.contains("remain="));
            assertTrue(result.endsWith("]"));
        }

        @Test
        @DisplayName("Should handle null values in toString")
        void testToStringWithNulls() {
            String result = referralData.toString();

            assertTrue(result.contains("server=null"));
            assertTrue(result.contains("share=null"));