@Test
    void requireThatHashCodeIsImplemented() {
        assertEquals(new RangePartition("foo=0-9").hashCode(), new RangePartition("foo=0-9").hashCode());
    }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
predicate-search-core/src/test/java/com/yahoo/document/predicate/RangePartitionTest.java