byte[] dst = new byte[256];
        int bytesWritten = packet.writeTrailerWireFormat(dst, 0);

        assertTrue(bytesWritten > 0);
        // Each name should write at least 34 bytes (encoded name + scope)
        assertTrue(bytesWritten >= 68);
    }

    @Test
    @DisplayName("writeTrailerWireFormat with scope should handle scoped names")
    void testWriteTrailerWireFormatWithScope() {

     * @param dstIndex the starting index in the destination array
     * @return written bytes
     */
    public int writeWireFormat(final byte[] dst, final int dstIndex) {
        this.length = writeTrailerWireFormat(dst, dstIndex + HEADER_LENGTH);
        writeHeaderWireFormat(dst, dstIndex);
        return HEADER_LENGTH + this.length;
    }

    }

    @Test
    void writeTrailerWireFormatShouldReturnZero() {
        // Test that writeTrailerWireFormat always returns 0, as per its implementation.
        SessionRetargetResponsePacket packet = new SessionRetargetResponsePacket();
        assertEquals(0, packet.writeTrailerWireFormat(new byte[0], 0));
    }

    @Test
    void readTrailerWireFormatShouldReadSixBytesSuccessfully() throws IOException {

     * @param dstIndex the starting index in the destination array
     * @return the number of bytes written
     */
    public int writeWireFormat(final byte[] dst, final int dstIndex) {
        length = writeTrailerWireFormat(dst, dstIndex + HEADER_LENGTH);
        writeHeaderWireFormat(dst, dstIndex);
        return HEADER_LENGTH + length;
    }

class SessionRetargetResponsePacket extends SessionServicePacket {

    SessionRetargetResponsePacket() {
        this.type = SESSION_RETARGET_RESPONSE;
        this.length = 6;
    }

    @Override
    int writeTrailerWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readTrailerWireFormat(final InputStream in, final byte[] buffer, int bufferIndex) throws IOException {

    private NbtAddress retargetAddress;

    SessionRetargetResponsePacket() {
        type = SESSION_RETARGET_RESPONSE;
        length = 6;
    }

    @Override
    int writeTrailerWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readTrailerWireFormat(final InputStream in, final byte[] buffer, int bufferIndex) throws IOException {

        this.type = SESSION_REQUEST;
        this.calledName = new Name(config, calledName);
        this.callingName = new Name(config, callingName);
    }

    @Override
    int writeTrailerWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        dstIndex += this.calledName.writeWireFormat(dst, dstIndex);
        dstIndex += this.callingName.writeWireFormat(dst, dstIndex);

        type = SESSION_REQUEST;
        this.calledName = calledName;
        this.callingName = callingName;
    }

    @Override
    int writeTrailerWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        dstIndex += calledName.writeWireFormat(dst, dstIndex);
        dstIndex += callingName.writeWireFormat(dst, dstIndex);

        int trailerLength = 10; // Default trailer length for testing
        int trailerBytesRead = 0;

        @Override
        int writeTrailerWireFormat(byte[] dst, int dstIndex) {
            // Simple mock implementation
            for (int i = 0; i < trailerLength && dstIndex + i < dst.length; i++) {
                dst[dstIndex + i] = (byte) i;
            }