String field = null;

        List<String> results = converter.convert(text, field, "en");

        assertNotNull(results);
    }

    @Test
    public void testConvertWithLongText() throws IOException {
        // Test convert with long text
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 100; i++) {
            sb.append("word").append(i).append(" ");
        }

        assertNotNull(readings);
        assertEquals(1, readings.size());
        assertEquals("  TEST  \n\t  TEXT  ", readings.get(0));
    }

    @Test
    public void testConvertWithLongText() throws IOException {
        // Test convert with long text
        converter.init();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 1000; i++) {