@Test
public void testUpdatedSince() {

    boolean updated = PersistenceExtensions.updatedSince(item,
            ZonedDateTime.of(1940, 1, 1, 0, 0, 0, 0, ZoneId.systemDefault()), TestPersistenceService.ID);
    assertFalse(updated);
    updated = PersistenceExtensions.updatedSince(item,
            ZonedDateTime.of(2005, 1, 1, 0, 0, 0, 0, ZoneId.systemDefault()), TestPersistenceService.ID);
    assertTrue(updated);
    // default persistence service
    updated = PersistenceExtensions.updatedSince(item,
            ZonedDateTime.of(2005, 1, 1, 0, 0, 0, 0, ZoneId.systemDefault()));
    assertFalse(updated);
}