private void testConvert(String predicate, String expected) {
        int defaultArity = 10;
        testConvert(predicate, expected, defaultArity);
    }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
predicate-search-core/src/test/java/com/yahoo/search/predicate/optimization/ComplexNodeTransformerTest.java