VADDPD 2048(DX)(AX*2), X29, X28 // 6261950058a44200080000
	VADDPD 4096(DX), Y0, Y29        // 6261fd2858aa00100000
	VADDPD 4096(DX), Y29, Y1        // 62f19520588a00100000
	VADDPD 4096(DX), Y28, Y29       // 62619d2058aa00100000
	VADDPD 4096(DX)(AX*2), Y0, Y29  // 6261fd2858ac4200100000
	VADDPD 4096(DX)(AX*2), Y29, Y1  // 62f19520588c4200100000
	VADDPD 8192(DX), Z0, Z29        // 6261fd4858aa00200000

     */
    protected FileUtil() {
    }

    /** The encoding name for UTF-8. */
    private static final String UTF8 = "UTF-8";

    /** Default Buffer Size */
    protected static final int DEFAULT_BUF_SIZE = 4096; // 4k

    /** Max Buffer Size */
    protected static final int MAX_BUF_SIZE = 10 * 1024 * 1024; // 10m

    /**
     * Returns the canonical path string for this abstract pathname.
     *

    private static final int FILE_NOTIFY_CHANGE_ALL = 0x00000FFF;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getNotifyBufferSize()).thenReturn(4096);
        when(mockConfig.getTransactionBufferSize()).thenReturn(65535);
    }

    @Test
    @DisplayName("Test constructor initialization with basic parameters")
    void testConstructorBasic() {

        when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree);
        when(tree.isSMB2()).thenReturn(true); // simplifies stream init
        when(tree.getReceiveBufferSize()).thenReturn(4096);

        // Act: first calls construct streams, second calls return cached
        SmbPipeInputStream in1 = handle.getInput();
        SmbPipeInputStream in2 = handle.getInput();

  private static void copy(URL url, File file) throws IOException {
    InputStream in = url.openStream();
    try {
      OutputStream out = new FileOutputStream(file);
      try {
        byte[] buf = new byte[4096];
        for (int read = in.read(buf); read != -1; read = in.read(buf)) {
          out.write(buf, 0, read);
        }
      } finally {
        out.close();
      }
    } finally {
      in.close();

        when(handle.getPipe()).thenReturn(pipe);
        // init(th) behavior inside SmbFileInputStream constructor
        when(tree.isSMB2()).thenReturn(smb2);
        when(tree.getReceiveBufferSize()).thenReturn(4096);
        when(tree.getMaximumBufferSize()).thenReturn(65535);
        when(tree.hasCapability(anyInt())).thenReturn(false);
        return new SmbPipeInputStream(handle, tree);
    }

pkg syscall (netbsd-386), const SO_RCVBUF = 4098
pkg syscall (netbsd-386), const SO_RCVLOWAT = 4100
pkg syscall (netbsd-386), const SO_RCVTIMEO = 4108
pkg syscall (netbsd-386), const SO_REUSEADDR = 4
pkg syscall (netbsd-386), const SO_REUSEPORT = 512
pkg syscall (netbsd-386), const SO_SNDBUF = 4097
pkg syscall (netbsd-386), const SO_SNDLOWAT = 4099
pkg syscall (netbsd-386), const SO_SNDTIMEO = 4107

            buffer[9] = 0x10; // alloc = 4096
            buffer[12] = 0x00;
            buffer[13] = 0x08; // free = 2048
            buffer[16] = 0x00;
            buffer[17] = 0x02; // bytesPerSect = 512

            int bytesDecoded = smbInfoAllocation.decode(buffer, 0, buffer.length);

            assertEquals(20, bytesDecoded);
            assertEquals(8L * 4096L * 512L, smbInfoAllocation.getCapacity());

        SMBUtil.writeInt8(500000, buffer, 28); // Available allocation units
        SMBUtil.writeInt4(512, buffer, 36); // Sectors per unit
        SMBUtil.writeInt4(4096, buffer, 40); // Bytes per sector

        int result = response.readBytesWireFormat(buffer, bufferIndex);

        assertNotNull(response.getInfo());

	ADDI	$-2049, X5				// 938202c09382f2bf
	ADDI	$4094, X5				// 9382f27f9382f27f
	ADDI	$-4096, X5				// 9382028093820280
	ADDI	$4095, X5				// b71f00009b8fffffb382f201
	ADDI	$-4097, X5				// b7ffffff9b8fffffb382f201
	ADDI	$2047, X5, X6				// 1383f27f
	ADDI	$-2048, X5, X6				// 13830280
	ADDI	$2048, X5, X6				// 1383024013030340
	ADDI	$-2049, X5, X6				// 138302c01303f3bf
	ADDI	$4094, X5, X6				// 1383f27f1303f37f