AnalyzerSettings.DefaultContentsAnalyzer analyzer = SuggestUtil.createDefaultAnalyzer(client, settings);
        assertNotNull(analyzer);
    }

    @Test
    public void testGetAsList() {
        // Test with null
        List<String> nullList = SuggestUtil.getAsList(null);
        assertNotNull(nullList);
        assertEquals(0, nullList.size());

        // Test with String