assertNotNull(keywords);
        // Should extract all unique terms
        assertTrue(keywords.size() > 0);
    }

    @Test
    public void testCreateBulkLineWithMinimalItem() {
        // Test with minimal SuggestItem
        SuggestItem item = new SuggestItem(new String[] { "minimal" }, new String[0][0], new String[0], 0, // queryFreq
                0, // docFreq