}
        }

        /**
         * Writes a raw line of text to the temporary file.
         *
         * @param line the line of text to write
         */
        public void write(final String line) {
            try {
                writer.write(line);
                writer.write(Constants.LINE_SEPARATOR);

        }
        return 0;
    }

    @Override
    public void write(final int b) throws SmbException {
        tmp[0] = (byte) b;
        write(tmp, 0, 1);
    }

    @Override
    public void write(final byte b[]) throws SmbException {
        write(b, 0, b.length);
    }

    @Override
    public void write(final byte b[], int off, int len) throws SmbException {
        if (len <= 0) {

                                }
                                bw.write(mapper.writeValueAsString(dataObj));
                            } else {
                                bw.write(line);
                            }
                        } else {
                            bw.write(line);
                        }
                    }
                    bw.write("\n");
                }
                bw.flush();

        cos.write(2);
        cos.write(3);
        assertTrue(cos.isInMemory());
        cos.write(4); // Exceeds threshold
        assertFalse(cos.isInMemory());
        File file = cos.getFile();
        assertTrue(file.exists());
        cos.close();
    }

    @Test
    public void testGetDataInMemory() throws IOException {
        // getData() should return the written data when in memory

        File lmhostsFile = tempDir.resolve("lmhosts_empty").toFile();
        try (FileWriter writer = new FileWriter(lmhostsFile)) {
            writer.write("192.168.1.100 HOST1\n");
            writer.write("\n");
            writer.write("   \n");
            writer.write("192.168.1.101 HOST2\n");
        }

        when(mockConfig.getLmHostsFileName()).thenReturn(lmhostsFile.getAbsolutePath());

        // Write all entries
        for (int i = 0; i < numShares; i++) {
            // Write share name (14 bytes)
            byte[] nameBytes = shareNames[i].getBytes(StandardCharsets.US_ASCII);
            System.arraycopy(nameBytes, 0, buffer, bufferIndex, Math.min(nameBytes.length, 13));
            bufferIndex += 14;

            // Write type (2 bytes)

                throw new DictionaryException("Failed to write: " + oldItem + " -> " + item, e);
            }
        }

        /**
         * Writes a string line to the temporary file.
         * @param line the line to write
         */
        public void write(final String line) {
            try {
                writer.write(line);
                writer.write(Constants.LINE_SEPARATOR);

         */
        public StemmerOverrideItem write(final StemmerOverrideItem oldItem) {
            try {
                if (item == null || item.getId() != oldItem.getId() || !item.isUpdated()) {
                    writer.write(oldItem.toLineString());
                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }

         */
        public StopwordsItem write(final StopwordsItem oldItem) {
            try {
                if (item == null || item.getId() != oldItem.getId() || !item.isUpdated()) {
                    writer.write(oldItem.toLineString());
                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }

            // Act: submit a write
            w.write(payload, 3, out);
        }

        // Assert: verify the underlying stream was called
        verify(out, timeout(1000)).write(payload, 0, 3);

        // Stop the thread by sending n = -1
        synchronized (w) {
            w.write(new byte[0], -1, out);
        }

        w.join(2000);