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

        // searchAttributes
        searchAttributes = ATTR_DIRECTORY | ATTR_HIDDEN | ATTR_SYSTEM;

        // fileAttributes
        fileAttributes = 0;

        // openFunction
        if ((flags & SmbFile.O_TRUNC) == SmbFile.O_TRUNC) {
            // truncate the file
            if ((flags & SmbFile.O_CREAT) == SmbFile.O_CREAT) {
                // create it if necessary
                openFunction = OPEN_FN_TRUNC | OPEN_FN_CREATE;

     */
    @BeforeEach
    void setUp() {
        andx = mock(ServerMessageBlock.class);
    }

    /**
     * Test constructor with O_CREAT and O_TRUNC flags.
     */
    @Test
    void testConstructor_CreateAndTruncate() {
        int flags = SmbFile.O_CREAT | SmbFile.O_TRUNC;
        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);
        assertEquals(fileName, smbComOpenAndX.path);

        // searchAttributes
        this.searchAttributes = SmbConstants.ATTR_DIRECTORY | SmbConstants.ATTR_HIDDEN | SmbConstants.ATTR_SYSTEM;

        // openFunction
        if ((flags & SmbConstants.O_TRUNC) == SmbConstants.O_TRUNC) {
            // truncate the file
            if ((flags & SmbConstants.O_CREAT) == SmbConstants.O_CREAT) {
                // create it if necessary

        this.extFileAttributes = extFileAttributes;

        // shareAccess
        this.shareAccess = shareAccess;

        // createDisposition
        if ((flags & SmbConstants.O_TRUNC) == SmbConstants.O_TRUNC) {
            // truncate the file
            if ((flags & SmbConstants.O_CREAT) == SmbConstants.O_CREAT) {
                // create it if necessary
                this.createDisposition = FILE_OVERWRITE_IF;

        static java.util.stream.Stream<Arguments> flagsProvider() {
            return java.util.stream.Stream.of(
                    Arguments.of(SmbConstants.O_TRUNC | SmbConstants.O_CREAT, SmbComNTCreateAndX.FILE_OVERWRITE_IF),
                    Arguments.of(SmbConstants.O_TRUNC, SmbComNTCreateAndX.FILE_OVERWRITE),
                    Arguments.of(SmbConstants.O_CREAT | SmbConstants.O_EXCL, SmbComNTCreateAndX.FILE_CREATE),

        this.extFileAttributes = extFileAttributes;

        // shareAccess
        this.shareAccess = shareAccess;

        // createDisposition
        if ((flags & SmbFile.O_TRUNC) == SmbFile.O_TRUNC) {
            // truncate the file
            if ((flags & SmbFile.O_CREAT) == SmbFile.O_CREAT) {
                // create it if necessary
                createDisposition = FILE_OVERWRITE_IF;

        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 {