assertEquals(0x00, buffer[4]);
        assertEquals(0x00, buffer[5]);

        // Check that filename is written correctly (starting at offset 6)
        // The filename should be null-terminated Unicode string
        assertTrue(written > 6);

        // Verify the total bytes written is reasonable
        assertTrue(written > TEST_FILENAME.length());
    }

    @ParameterizedTest

        assertEquals(smbComNtTransaction.parameterOffset, SmbComTransaction.readInt4(dst, 23),
                "parameterOffset should be written correctly");
        assertEquals(smbComNtTransaction.dataCount, SmbComTransaction.readInt4(dst, 27), "dataCount should be written correctly");
        assertEquals(smbComNtTransaction.dataOffset, SmbComTransaction.readInt4(dst, 31), "dataOffset should be written correctly");

    @Test
    @DisplayName("writeBytesWireFormat should write correct structure")
    void testWriteBytesWireFormat() {
        byte[] buffer = new byte[256];
        int offset = 64; // Start at offset to test proper indexing

        int written = request.writeBytesWireFormat(buffer, offset);

        // Verify bytes written
        assertEquals(24, written);

        // Verify structure size (should be 24)

            int written = echoRequest.writeBytesWireFormat(minBuffer, 0);
            assertEquals(4, written);
            assertEquals(4, SMBUtil.readInt2(minBuffer, 0));

            // Large buffer
            byte[] largeBuffer = new byte[10000];
            written = echoRequest.writeBytesWireFormat(largeBuffer, 5000);
            assertEquals(4, written);

        byte[] buffer = new byte[256];
        int written = writePacket.writeTrailerWireFormat(buffer, 0);

        ByteArrayInputStream bais = new ByteArrayInputStream(buffer, 0, written);
        SessionRequestPacket readPacket = new SessionRequestPacket(mockConfig);
        readPacket.length = written;

        int bytesRead = readPacket.readTrailerWireFormat(bais, buffer, 0);

	"path"
	"slices"
	"strings"
	"time"
)

// Writer provides sequential writing of a tar archive.
// [Writer.WriteHeader] begins a new file with the provided [Header],
// and then Writer can be treated as an io.Writer to supply that file's data.
type Writer struct {
	w    io.Writer
	pad  int64      // Amount of padding to write after current file entry
	curr fileWriter // Writer for current file entry

        // Check that the path is written after the referral level
        // The path should be written starting at index 2
        // writeString adds null terminator
        assertTrue(len > 2, "Length should include path");
        String writtenPath = extractStringFromBuffer(buffer, 2, len - 2);
        assertTrue(writtenPath.contains("abc"), "Path should be written to buffer");
    }

    @Test

        byte[] dst = new byte[10];

        // writeSetupWireFormat writes 4 bytes:
        // - subCommand byte
        // - 3 zero bytes (padding and no FID)
        int written = pipe.writeSetupWireFormat(dst, 0);

        assertEquals(4, written, "Setup should write 4 bytes");
        assertEquals(SmbComTransaction.TRANS_WAIT_NAMED_PIPE, dst[0], "First byte should be subCommand");

        Arrays.fill(dst, (byte) 0x55);

        // Act
        int written = enc.encode(dst, dstIndex);

        // Assert: reported written bytes matches size() and requested len.
        assertEquals(len, enc.size(), "size() must equal provided length");
        assertEquals(len, written, "encode() must return number of bytes written");

        // Assert: copied region equals the source slice.

    }

    @Test
    @DisplayName("writeSetupWireFormat writes the subCommand and a trailing 0")
    void testWriteSetupWireFormat() {
        Trans2QueryFSInformation cmd = new Trans2QueryFSInformation(5);
        byte[] buf = newBuffer(10);
        int written = cmd.writeSetupWireFormat(buf, 0);
        assertEquals(2, written, "setup packet should write 2 bytes");