@VisibleForTesting
  public WeightedPolicyInfo getWeightedPolicyInfo() {
    return weightedPolicyInfo;
  }
@Test
  public void testPolicyInfoSetCorrectly() throws Exception {
    serializeAndDeserializePolicyManager(wfp, expectedPolicyManager,
                                         expectedAMRMProxyPolicy,
                                         expectedRouterPolicy);

    //check the policyInfo propagates through ser/der correctly
    Assert.assertEquals(((WeightedLocalityPolicyManager) wfp)
                            .getWeightedPolicyInfo(), policyInfo);
  }