ansible tests: Add test for the neighbour MAC change update

ansible/roles/test/tasks/neighbour-mac.yml

@@ -0,0 +1,79 @@
+# docker exec -it syncd sx_api_port_speed_set_100G.py
+# Test run example:
+# ansible-playbook -i inventory --limit arc-switch1027 test_sonic.yml -b -e "ptf_host=ptf-1" --tags neighbour
+
+- set_fact:
+    host_if: eth0
+    dut_if: Ethernet0
+    host_ip: 20.0.0.2
+    dut_ip: 20.0.0.1
+    nei_mac1: 00:C0:CA:C0:1A:05
+    nei_mac2: 00:C0:CA:C0:1A:06
+
+- name: Change DUT interface IP to test IP address
+  become: yes
+  command: /sbin/ifconfig {{ dut_if }} {{ dut_ip }} netmask 255.255.255.0
+
+- name: Change host interface IP to test IP address
+  become: yes
+  command: /sbin/ifconfig {{ host_if }} {{ host_ip }} netmask 255.255.255.0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Get host MAC
+  become: true
+  shell: ifconfig {{ host_if }} | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'
+  register: host_mac
+  failed_when: host_mac.rc != 0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Set host MAC to pretend neighbour #1
+  become: true
+  shell: ifconfig {{ host_if }} down; ifconfig {{ host_if }} hw ether {{ nei_mac1 }}; ifconfig {{ host_if }} up
+  register: set1
+  failed_when: set1.rc != 0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Ping DUT to populate neighbour #1
+  become: true
+  shell: ping {{ dut_ip }} -c 3 -I {{ host_if }}
+  register: ping1
+  failed_when: ping1.rc != 0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Get the SONiC DB key holding neighbour MAC for {{ host_ip }}
+  become: true
+  shell: docker exec database redis-cli -n 1 KEYS ASIC_STATE:SAI_OBJECT_TYPE_NEIGHBOR_ENTRY* | grep {{ host_ip }}
+  register: neighbour_key
+  failed_when: neighbour_key.rc != 0
+
+- name: Check neighbour MAC1 on DUT. Should be {{ nei_mac1 }}
+  become: true
+  shell: docker exec database redis-cli -n 1 HGET '{{ neighbour_key.stdout }}' 'SAI_NEIGHBOR_ATTR_DST_MAC_ADDRESS'
+  register: neighbour_mac
+  failed_when: neighbour_mac.stdout != "{{ nei_mac1 }}"
+
+- name: Set host MAC to pretend neighbour #2
+  become: true
+  shell: ifconfig {{ host_if }} down; ifconfig {{ host_if }} hw ether {{ nei_mac2 }}; ifconfig {{ host_if }} up
+  register: set2
+  failed_when: set2.rc != 0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Ping DUT to populate neighbour #2
+  become: true
+  shell: ping {{ dut_ip }} -c 3 -I {{ host_if }}
+  register: ping2
+  failed_when: ping2.rc != 0
+  delegate_to: "{{ ptf_host }}"
+
+- name: Get the SONiC DB key holding neighbour MAC for {{ host_ip }}
+  become: true
+  shell: docker exec database redis-cli -n 1 KEYS ASIC_STATE:SAI_OBJECT_TYPE_NEIGHBOR_ENTRY* | grep {{ host_ip }}
+  register: neighbour_key
+  failed_when: neighbour_key.rc != 0
+
+- name: Check neighbour MAC2 on DUT. Should be {{ nei_mac2 }}
+  become: true
+  shell: docker exec database redis-cli -n 1 HGET '{{ neighbour_key.stdout }}' 'SAI_NEIGHBOR_ATTR_DST_MAC_ADDRESS'
+  register: neighbour_mac
+  failed_when: neighbour_mac.stdout != "{{ nei_mac2 }}"

ansible/roles/test/tasks/sonic.yml

@@ -1,3 +1,7 @@
+- name: Neighbor mac change test
+  include: neighbour-mac.yml
+  tags: neighbour
+
 - name: Test LLDP
   include: lldp.yml
   tags: lldp