// Fill buffer with non-zero values to ensure padding writes zeros
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) 0xFF;
        }

        int written = trans2SetFileInfo.writeDataWireFormat(buffer, 0);

        // Should report 26 bytes written (20 from encode + 6 increment)
        assertEquals(26, written);

        // Check that padding bytes are zeros

        assertTrue(output.contains("true"));

        // Test close
        logStream.close();
        // After close, the stream should not accept more writes
        // but PrintStream doesn't throw exceptions on write after close
    }

    @Test
    void testConcurrentAccess() throws InterruptedException {
        // Test thread safety of getInstance
        LogStream.setInstance(testStream);

    /**
     * Converts a long value to hexadecimal characters and writes them to the specified character array.
     *
     * @param val the long value to convert to hexadecimal characters
     * @param dst the destination character array to write the hex digits into
     * @param dstIndex the starting index in the destination array
     * @param size the number of hex digits to write (will be left-padded with zeros)
     */

		var b Buffer
		b.Write(buf[0:1])
		for i := 0; i < 5<<10; i++ {
			b.Write(buf)
			b.Read(buf)
		}
	}
}

// Check that we don't compact too often. From Issue 5154.
func BenchmarkBufferFullSmallReads(b *testing.B) {
	buf := make([]byte, 1024)
	for i := 0; i < b.N; i++ {
		var b Buffer
		b.Write(buf)
		for b.Len()+20 < b.Cap() {
			b.Write(buf[:10])
		}

    }

    @Override
    public void write(int b) {
      try {
        output.write(b);
      } catch (IOException impossible) {
        throw new AssertionError(impossible);
      }
    }

    @Override
    public void write(byte[] b) {
      try {
        output.write(b);
      } catch (IOException impossible) {
        throw new AssertionError(impossible);

    @ValueSource(ints = { 0, 1, 5 })
    @DisplayName("writeBytesWireFormat writes StructureSize=4 and Reserved=0 at given offset")
    void writeBytesWireFormat_writesExpectedValuesAtOffset(int offset) {
        // Arrange
        Smb2LogoffRequest req = newRequest();
        byte[] buf = new byte[offset + 8]; // extra space for safety

        // Act
        int written = req.writeBytesWireFormat(buf, offset);

        assertThrows(NullPointerException.class, () -> {
            new Smb2NegotiateRequest(mockConfig, 0);
        });
    }

    @Test
    @DisplayName("Should properly align buffer writes")
    void testBufferAlignment() {
        // Given
        when(mockConfig.getMaximumVersion()).thenReturn(DialectVersion.SMB311);
        request = new Smb2NegotiateRequest(mockConfig, 0);

     */

    /**
     * Writes the parameter words portion of the SMB message to the wire format.
     *
     * @param dst the destination buffer
     * @param dstIndex the starting offset in the buffer
     * @return the number of bytes written
     */
    protected abstract int writeParameterWordsWireFormat(byte[] dst, int dstIndex);

    /**

        return buffer[bufferIndex] & 0xFF;
    }

    int type, length;

    /**
     * Writes the packet to the specified byte array in wire format.
     *
     * @param dst the destination byte array to write to
     * @param dstIndex the starting index in the destination array
     * @return the number of bytes written
     */
    public int writeWireFormat(final byte[] dst, final int dstIndex) {

        when(mockConfig.getOemEncoding()).thenReturn("windows-1252");
        cmd = new SmbComQueryInformation(mockConfig, "testfile.txt");
    }

    @Test
    @DisplayName("writeBytesWireFormat writes the command byte followed by the null terminated string")
    void testWriteBytesWireFormatHappy() throws UnsupportedEncodingException {
        byte[] buffer = new byte[50];
        int used = cmd.writeBytesWireFormat(buffer, 0);