} catch (Exception e) {
            // Expected behavior - null text might cause exception
            assertNotNull(e);
        }
    }

    @Test
    public void testConvertWithWhitespaceText() throws IOException {
        // Test convert with whitespace text
        String text = "   ";
        String field = "content";

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

Shinsuke Sugaya <******@****.***> 1756733583 +0900