@Test
    void testConfigOverride() {
        assertEquals("[ASCENDING:uca(title,en_US,TERTIARY)]", quoteAndTransform("title"));
        assertEquals("[ASCENDING:uca(title,en_US,TERTIARY)]", quoteAndTransform("uca(title)"));
        assertEquals("[ASCENDING:uca(title,en_US,TERTIARY)]", quoteAndTransform("+uca(title)"));
        assertEquals("[ASCENDING:uca(title,en_US,TERTIARY)]", quoteAndTransform("uca(title,en_US)"));
    }
Check sorting validation behaves OK.

@author Steinar Knutsen
container-search/src/test/java/com/yahoo/prelude/searcher/test/ValidateSortingSearcherTestCase.java