// Test with double (should throw exception)
        SuggestUtil.getAsList(3.14);
    }

    @Test(expected = IllegalArgumentException.class)
    public void testGetAsListWithBoolean() {
        // Test with boolean (should throw exception)
        SuggestUtil.getAsList(true);
    }

    // Additional tests for createBulkLine validation
    @Test(expected = SuggesterException.class)