@Test
    void requireThatDeeplyNestedConjunctionsAreCollapsed() {
        assertSimplified(and(feature("a").inSet("b"),
                feature("c").inSet("d"),
                feature("e").inSet("f"),
                feature("g").inSet("h"),
                feature("i").inSet("j")),
                and(feature("a").inSet("b"),
                        and(feature("c").inSet("d")),
                        feature("e").inSet("f"),
                        and(and(feature("g").inSet("h"),
                                feature("i").inSet("j")))));
    }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
predicate-search-core/src/test/java/com/yahoo/search/predicate/optimization/AndOrSimplifierTest.java