@Test
    void requireThatConjunctionsCanGetMoreThanTwoChildren() {
        Predicate p = Predicate.fromString("a in [b] and c in [d] and e in [f] and g in [h]");
        assertTrue(p instanceof Conjunction);
        assertEquals(4, ((Conjunction) p).getOperands().size());
    }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
predicate-search-core/src/test/java/com/yahoo/document/predicate/PredicateParserTest.java