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);

        void testEncodeAtDifferentPositions(int position) {
            // Given
            byte[] largeBuffer = new byte[500];
            SrvCopychunk chunk = new SrvCopychunk(12345, 67890, 99999);
            SrvCopychunkCopy copy = new SrvCopychunkCopy(sourceKey, chunk);

            // When
            int bytesWritten = copy.encode(largeBuffer, position);

            // Then

            byte[] smallBuffer = new byte[100]; // Make buffer large enough
            byte[] largeBuffer = new byte[1000];

            // Act
            int smallEncodedSize = context.encode(smallBuffer, 0);
            int largeEncodedSize = context.encode(largeBuffer, 500);

            // Assert
            // encode() returns actual bytes written (6), not size() value (8)

        void testLargeBufferDecoding() throws SMBProtocolDecodingException {
            byte[] largeBuffer = new byte[10000];
            FileFsSizeInformation info = new FileFsSizeInformation();

            long startTime = System.nanoTime();
            info.decode(largeBuffer, 0, 24);
            long endTime = System.nanoTime();

            // Should complete quickly (under 1ms)