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Overview
========
Virtual Topologies
------------------
CSIT HoneyComb functional tests are executed in VM-based virtual topologies
created on demand using :abbr:`VIRL (Virtual Internet Routing Lab)`
simulation platform contributed by Cisco. VIRL runs on physical
baremetal servers hosted by LF FD.io project.
All tests are executed in two-node virtual test topology shown in the
figure below.
.. only:: latex
.. raw:: latex
\begin{figure}[H]
\centering
\graphicspath{{../_tmp/src/vpp_functional_tests/}}
\includegraphics[width=0.90\textwidth]{virtual-2n-nic2nic}
\label{fig:virtual-2n-nic2nic}
\end{figure}
.. only:: html
.. figure:: ../vpp_functional_tests/virtual-2n-nic2nic.svg
:alt: virtual-2n-nic2nic
:align: center
SUT (System Under Test) is a VM running Ubuntu Linux (or Centos,
depending on the test suite), TG (Traffic Generator) is another VM
running Ubuntu Linux. SUT VMs run HoneyComb management agent and VPP in
Linux user-mode as a combined DUT (Device Under Test). TG runs Scapy
application as a packet Traffic Generator. Virtual connectivity between
SUT and TG is provided using virtual NICs using VMs' virtio drivers.
Functional Tests Coverage
-------------------------
|csit-release| includes following HoneyComb functionality tested in
virtual VM environment:
+-----------------------+----------------------------------------------+
| Functionality | Description |
+=======================+==============================================+
| ACL | - CRD for low-level classifiers: table and |
| | session management, interface assignment. |
| | - Configure up to 2 classify tables. |
| | - Configure up to 2 classify sessions on one |
| | table. |
| | - Assign classify session to a physical |
| | interface. |
| | - Remove tables, sessions, interface |
| | assignments. |
| | - Test case count: 9. |
+-----------------------+----------------------------------------------+
| ACL-PLUGIN | - CRD for high-level classifier. |
| | - MAC + IP address classification. |
| | - IPv4, IPv6 address classification. |
| | - TCP, UDP, ICMP, ICMPv6 protocol and |
| | next-header classification. |
| | - port number classification. |
| | - ICMP, ICMPv6 code and type classification. |
| | - Test case count: 15. |
+-----------------------+----------------------------------------------+
| Basic interface | - CRUD for interface state. |
| management | - ipv4/ipv6 address, ipv4 neighbor, MTU |
| | value. |
| | - Test case count: 14. |
+-----------------------+----------------------------------------------+
| Border Gateway | - CRUD and functional tests for BGP. |
| Protocol | - Configure peers and routes |
| | - Check interactions with another BGP peer. |
| | - Test case count: 13. |
+-----------------------+----------------------------------------------+
| DHCP Relay | - CRD for DHCP relay feature. |
| | - Configure DHCP Relays. |
| | - IPv4 and IPv6 variants. |
| | - Test case count: 4. |
+-----------------------+----------------------------------------------+
| Honeycomb | - Configuration persistence. |
| Infractructure | - Netconf notifications for interface |
| | events. |
| | - Netconf negative tests aimed at specific |
| | issues. |
| | - Netconf/Restconf northbound over IPv6. |
| | - Test case count: 12. |
+-----------------------+----------------------------------------------+
| L2BD | - CRUD for L2 Bridge-Domain, interface |
| | assignment. |
| | - Create up to two bridge domains with all |
| | implemented functions turned on: |
| | flooding, unknown-unicast flooding, |
| | forwarding, learning, arp-termination. |
| | - Assign up to two physical interfaces to a |
| | single bridge domain. |
| | - Remove interface assignments, remove |
| | bridge domains. |
| | - Test case count: 5. |
+-----------------------+----------------------------------------------+
| L2FIB | - CRD for L2-FIB entries. |
| | - Create 4 FIB entries: |
| | one of each for filter/forward, |
| | static/dynamic combinations. |
| | - Remove FIB entries. |
| | - Test case count: 7. |
+-----------------------+----------------------------------------------+
| LISP | - CRD for Lisp: mapping, locator set, |
| | adjacency, mapresolver. |
| | - Toggle Lisp feature status. |
| | - Configure and delete Lisp mapping as local |
| | and remote. |
| | - Configure and delete Lisp adjacency |
| | mapping. |
| | - Configure and delete Lisp map resolver, |
| | proxy ITR. |
| | - Test case count: 18. |
+-----------------------+----------------------------------------------+
| LISP GPE | - CRUD for LISP GPE mappings. |
| | - Toggle Lisp GPE feature status. |
| | - Configure Lisp GPE mappings. |
| | - Traffic test verifying encapsulation. |
| | - Test case count: 12. |
+-----------------------+----------------------------------------------+
| NAT | - CRD for NAT entries, interface assignment. |
| | - Configure and delete up to two NAT |
| | entries. |
| | - Assign NAT entries to a physical |
| | interface. |
| | - Test case count: 6. |
+-----------------------+----------------------------------------------+
| NSH_SFC | - CRD for NSH maps and entries, using |
| | NSH_SFC plugin. |
| | - Configure up to 2 NSH entries. |
| | - Configure up to 2 NSH maps. |
| | - Modify and delete NSH maps and entries. |
| | - Test case count: 8. |
+-----------------------+----------------------------------------------+
| PBB | - CRD for provider backbone bridge |
| | sub-interface. |
| | - Configure, modify and remove a PBB |
| | sub-interface over a physical interface. |
| | - Test case count: 8. |
+-----------------------+----------------------------------------------+
| Policer | - CRD for traffic policing feature. |
| | - Configure Policing rules. |
| | - Assign to interface. |
| | - Test case count: 6. |
+-----------------------+----------------------------------------------+
| Port mirroring | - CRD for SPAN port mirroring, interface |
| | assignment. |
| | - Configure SPAN port mirroring on a |
| | physical interface, mirroring. |
| | - up to 2 interfaces. |
| | - Remove SPAN configuration from interfaces. |
| | - Test case count: 14. |
+-----------------------+----------------------------------------------+
| ProxyARP | - CRD for proxyARP feature. |
| | - Configure proxyARP. |
| | - Assign to interface. |
| | - Test case count: 3. |
+-----------------------+----------------------------------------------+
| ProxyND6 | - CRD for Neighbor Discovery Proxy. |
| | - Configure ProxyND6 feature on interface. |
| | - Test case count: 4. |
+-----------------------+----------------------------------------------+
| Routing | - CRD for routing. |
| | - Configure single-hop route. |
| | - Configure multi-hop routes. |
| | - Configure blackhole route. |
| | - IPv4 and IPv6 variants. |
| | - Test case count: 6. |
+-----------------------+----------------------------------------------+
| SLAAC | - CRD for Stateless Address |
| | AutoConfiguration. |
| | - Configure SLAAC feature on interfaces. |
| | - Test case count: 7. |
+-----------------------+----------------------------------------------+
| Vhost-user | - CRUD for Vhost-user interfaces. |
| | - Create, modify and delete Vhost-user |
| | interface, as client and server. |
| | - Test case count: 8. |
+-----------------------+----------------------------------------------+
| VLAN | - CRUD for VLAN sub-interface management. |
| | - Create VLAN sub-interface over a physical |
| | interface. |
| | - Toggle interface state separately for |
| | super-interface and sub-interface. |
| | - Configure IP address and bridge domain |
| | assignment on sub-interface. |
| | - Configure VLAN tag rewrite on |
| | sub-interface. |
| | - Test case count: 24. |
+-----------------------+----------------------------------------------+
| VxLAN | - CRD for VxLAN tunnels. |
| | - Create VxLAN interface. |
| | - Disable VxLAN interface. |
| | - Re-create a disabled VxLAN interface. |
| | - Test case count: 6. |
+-----------------------+----------------------------------------------+
| VxLAN-GPE | - CRD for VxLAN GPE tunnels. |
| | - Create VxLAN GPE interface. |
| | - Disable VxLAN interface. |
| | - Re-create a disabled VxLAN interface. |
| | - Test case count: 7. |
+-----------------------+----------------------------------------------+
| TAP | - CRUD for Tap interface management. |
| | - Create, modify and delete TAP interface. |
| | - Test case count: 3. |
+-----------------------+----------------------------------------------+
Total 219 Honeycomb functional tests in the |csit-release|.
Operational data in Honeycomb should mirror configuration data at all
times. Because of this, test cases follow this general pattern:
#. read operational data of the feature using restconf.
#. read status of the feature using VPP API dump.
#. modify configuration of the feature using restconf.
#. verify changes to operational data using restconf.
#. verify changes using VPP API dump, OR
#. send a packet to VPP node and observe behaviour to verify configuration.
Test cases involving network interfaces utilize the first two interfaces
on the DUT node.
Functional Tests Naming
-----------------------
|csit-release| follows a common structured naming convention for all
performance and system functional tests, introduced in CSIT-17.01.
The naming should be intuitive for majority of the tests. Complete
description of CSIT test naming convention is provided on
:ref:`csit_test_naming`.
|
