NFD

Topology: Single host.

Steps:

1. Start NFD.
2. Start ndn-traffic-server to serve ndn:/test-agg, with -d 2000 flag to delay response for 2000ms.
3. Start two instances of ndn-tlv-peek to request ndn:/test-agg/A. Wait until they terminate. Fail if either is unanswered.
4. Stop ndn-traffic-server. Fail if total served Interest does not equal 1.
5. Start ndn-traffic-server to serve ndn:/test-agg, with -d 2000 flag to delay response for 2000ms.
6. Start ndn-tlv-peek to request ndn:/test-agg/B ChildSelector=leftmost, and another instance to request ndn:/test-agg/B ChildSelector=rightmost. Wait until they terminate. Fail if either is unanswered.
7. Stop ndn-traffic-server. Fail if total served Interest does not equal 2.
8. Start ndn-traffic-server to serve ndn:/test-agg, with -d 2000 flag to delay response for 2000ms.
9. Start ndn-tlv-peek to request ndn:/test-agg/C InterestLifetime=6000ms, and another instance to request ndn:/test-agg/C InterestLifetime=8000ms. Wait until they terminate. Fail if either is unanswered.
10. Stop ndn-traffic-server. Fail if total served Interest does not equal 1.

Script can assume necessary programs are installed and accessible in $PATH, and current user has sudo privilege.