@Test
public void testGetBlockType() {

  replication = 3;
  preferredBlockSize = 128*1024*1024;
  INodeFile inf = createINodeFile(replication, preferredBlockSize);
  assertEquals(inf.getBlockType(), CONTIGUOUS);
  INodeFile striped = createStripedINodeFile(preferredBlockSize);
  assertEquals(striped.getBlockType(), STRIPED);
}