byte[] dst = new byte[buffer.size()];
            buffer.encode(dst, 0);

            ByteBuffer bb = ByteBuffer.wrap(dst).order(ByteOrder.LITTLE_ENDIAN);
            assertEquals((short) maxReferralLevel, bb.getShort());
        }

        @Test
        @DisplayName("Should encode Unicode path correctly")
        void testEncodeUnicodePath() {
            String path = "\\\\サーバー\\共有\\パス";

        final String encoded = Base64Util.encode(singleByte);
        assertNotNull("Encoded result should not be null", encoded);
        final byte[] decoded = Base64Util.decode(encoded);
        assertEquals("Decoded should have same length", 1, decoded.length);
        assertEquals("Decoded byte should match", singleByte[0], decoded[0]);
    }

    /**
     * Test encode with two bytes
     *

            context = new PreauthIntegrityNegotiateContext(mockConfig, hashAlgos, salt);
            int encoded = context.encode(buffer, 0);

            assertEquals(4 + (count * 2) + 16, encoded);
            assertEquals(context.size(), encoded);
        }

        @Test
        @DisplayName("Should encode and decode correctly")
        void testEncodeAndDecode() throws SMBProtocolDecodingException {

        FileRenameInformation2 original = new FileRenameInformation2(fileName, replaceIfExists);

        // Encode
        byte[] buffer = new byte[200];
        int bytesWritten = original.encode(buffer, 0);

        // Decode
        FileRenameInformation2 decoded = new FileRenameInformation2();
        int bytesRead = decoded.decode(buffer, 0, bytesWritten);

        // Verify round trip
        assertEquals(bytesWritten, bytesRead);

            int encoded = originalContext.encode(buffer, 0);
            assertEquals(2 + (2 * maxCiphers), encoded);

            EncryptionNegotiateContext decodedContext = new EncryptionNegotiateContext();
            int decoded = decodedContext.decode(buffer, 0, encoded);

            assertEquals(encoded, decoded);
            assertArrayEquals(ciphers, decodedContext.getCiphers());

/**
 * Unit tests for {@link NdrHyper}.
 * <p>
 * The class only contains an encode/decode pair that delegates to
 * {@link NdrBuffer#enc_ndr_hyper(long)} and {@link NdrBuffer#dec_ndr_hyper()}.
 * The tests verify that:
 * <ul>
 *   <li>encoding and decoding round‑trip correctly handle typical, zero,
 *       and extreme {@code long} values.</li>
 *   <li>encode/decode methods interact correctly with a mocked

        // Encode multiple times
        byte[] buffer1 = new byte[100];
        byte[] buffer2 = new byte[100];
        byte[] buffer3 = new byte[100];

        int encoded1 = request.encode(buffer1, 0);
        int encoded2 = request.encode(buffer2, 0);
        int encoded3 = request.encode(buffer3, 0);

        // All should produce same result

        when(mockFileInfo.encode(dst, 0)).thenReturn(8);
        when(mockFileInfo.size()).thenReturn(8);

        // Test encode
        int encoded = mockFileInfo.encode(dst, 0);
        assertEquals(8, encoded);

        // Test size
        int size = mockFileInfo.size();
        assertEquals(8, size);

        // Verify interactions
        verify(mockFileInfo).encode(dst, 0);

            byte[] largeBuffer = new byte[4096];
            int encoded = originalContext.encode(largeBuffer, 0);
            assertEquals(4 + (2 * maxAlgos) + salt.length, encoded);

            PreauthIntegrityNegotiateContext decodedContext = new PreauthIntegrityNegotiateContext();
            int decoded = decodedContext.decode(largeBuffer, 0, encoded);

            assertEquals(encoded, decoded);

                    policyHandle.uuid.node);
        }
    }

    @Nested
    @DisplayName("Unicode String Tests")
    class UnicodeStringTests {

        @Test
        @DisplayName("Should encode unicode string with null buffer correctly")
        void testUnicodeStringEncodeNullBuffer() throws NdrException {
            // Given: A unicode string with null buffer