private void verifyMETAUpdated(FavoredNodesPlan expectedPlan) throws IOException {
    FavoredNodesPlan planFromMETA = rp.getRegionAssignmentSnapshot().getExistingAssignmentPlan();
    assertTrue("The assignment plan is NOT consistent with the expected plan ",
      planFromMETA.equals(expectedPlan));
  }
Verify the meta has updated to the latest assignment plan
@param expectedPlan the region assignment plan
@throws IOException if an IO problem is encountered
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestRegionPlacement.java