}
assertEquals(lbks.locatedBlockCount(),
dn.getFSDataset().getBlockReport(namespaceID).length);
DatanodeDescriptor dnDs = cluster.getNameNode().namesystem.getDatanode(dnId);
dnDs.addBlocksToBeInvalidated(deleteList);
// Make sure all blocks are deleted.
while(dn.getFSDataset().getBlockReport(namespaceID).length != 0) {
Thread.sleep(1000);
}