*/
    int O_CREAT = 0x0010;
    /**
     * Fail if the file exists.
     */
    int O_EXCL = 0x0020;
    /**
     * Truncate file if it exists.
     */
    int O_TRUNC = 0x0040;

		const err = new Error("not implemented");
		err.code = "ENOSYS";
		return err;
	};

	if (!globalThis.fs) {
		let outputBuf = "";
		globalThis.fs = {
			constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused
			writeSync(fd, buf) {
				outputBuf += decoder.decode(buf);
				const nl = outputBuf.lastIndexOf("\n");
				if (nl != -1) {

        when(mockWriteResponse.getCount()).thenReturn(1);

        outputStream = new SmbFileOutputStream(mockFile, mockTreeHandle, mockFileHandle,
                SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_TRUNC, SmbConstants.FILE_WRITE_DATA,
                SmbConstants.DEFAULT_SHARING);

        // When
        outputStream.write(65); // Write 'A'

        // Then

        try {
            return dest.openUnshared(SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_TRUNC,
                    SmbConstants.FILE_WRITE_DATA | SmbConstants.FILE_WRITE_ATTRIBUTES | (alsoRead ? SmbConstants.FILE_READ_DATA : 0),
                    SmbConstants.FILE_NO_SHARE, attrs, 0);

        this(file, append,
                append ? SmbFile.O_CREAT | SmbFile.O_WRONLY | SmbFile.O_APPEND : SmbFile.O_CREAT | SmbFile.O_WRONLY | SmbFile.O_TRUNC);
    }

    /**
     * Creates an {@link java.io.OutputStream} for writing bytes to a file
     * on an SMB server addressed by the <code>SmbFile</code> parameter. See

        this(file, append, append ? SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_APPEND
                : SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_TRUNC, 0, SmbConstants.DEFAULT_SHARING);
    }

    SmbFileOutputStream(final SmbFile file, final boolean append, final int openFlags, final int access, final int sharing)
            throws SmbException {

            var outputStream = smbFile.getOutputStream();

            // Assert
            assertNotNull(outputStream);
            verify(smbFile).openUnshared(SmbConstants.O_CREAT | SmbConstants.O_WRONLY | SmbConstants.O_TRUNC, // 82
                    SmbConstants.O_WRONLY, // 2
                    SmbConstants.DEFAULT_SHARING, // 7, not FILE_SHARE_READ (1)
                    SmbConstants.ATTR_NORMAL, // 128
                    0);

        assertEquals(0x04, SmbConstants.O_APPEND);
        assertEquals(0x0010, SmbConstants.O_CREAT);
        assertEquals(0x0020, SmbConstants.O_EXCL);
        assertEquals(0x0040, SmbConstants.O_TRUNC);
    }

    @Test
    @DisplayName("Should define copy/move flags constants")
    void testCopyMoveFlags() {
        assertEquals(0x0001, SmbConstants.FLAGS_TARGET_MUST_BE_FILE);

            this.smb2 = th.isSMB2();
            if (file.getType() != SmbConstants.TYPE_NAMED_PIPE) {
                try (SmbFileHandle h = ensureOpen()) {}
                this.openFlags &= ~(SmbConstants.O_CREAT | SmbConstants.O_TRUNC);
            }

            init(th);
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    /**
     * @throws SmbException
     *