@Test
    void requireThatRangePartitionIsAValue() {
        assertTrue(PredicateValue.class.isAssignableFrom(RangePartition.class));
    }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
predicate-search-core/src/test/java/com/yahoo/document/predicate/RangePartitionTest.java