@Test
    void testUtf8Decoding() {
        Query q = new Query("/?query=beyonc%C3%A9&type=all");
        assertEquals("beyonc\u00e9", ((WordItem) q.getModel().getQueryTree().getRoot()).getWord());
    }
Test that the integer convenience wrapper works as documented,
throwing NumberFormatException when applied to something that
is not a number.
container-search/src/test/java/com/yahoo/prelude/test/QueryTestCase.java