@Test
public void testNameNodeFeature() {

  final LayoutFeature first = NameNodeLayoutVersion.Feature.ROLLING_UPGRADE; 
  assertTrue(NameNodeLayoutVersion.supports(LAST_NON_RESERVED_COMMON_FEATURE,
      first.getInfo().getLayoutVersion()));
  assertEquals(LAST_COMMON_FEATURE.getInfo().getLayoutVersion() - 1,
      first.getInfo().getLayoutVersion());
}