converter = testConverter;
    }

    @Test
    public void testGetMaxReadingNum() {
        // Test default max reading num
        assertEquals(10, converter.getMaxReadingNum());
    }

    @Test
    public void testInitNormal() throws IOException {
        // Test normal initialization
        converter.init();
        assertTrue(testConverter.isInitialized());
    }

        List<String> currentInputs = new ArrayList<>();
        if (text != null) {
            currentInputs.add(text);
        }

        final int maxReadingNum = getMaxReadingNum();

        // Apply each converter in sequence
        for (final ReadingConverter converter : converters) {
            final List<String> nextInputs = new ArrayList<>();