Add test for ARP filter

Signed-off-by: Zhichuan Liang <gray.liang@isovalent.com>

.github/workflows/test.yml

@@ -114,7 +114,6 @@ jobs:
  expected-output-pattern: '1.1.1.1:80'
 
  - name: Test --filter-track-skb
- # DNAT
  uses: ./.github/actions/pwru-test
  with:
  test-name: filter-track-skb
@@ -125,6 +124,16 @@ jobs:
  curl -vvv -sS --fail --connect-timeout "1" -o /dev/null http://10.10.20.99:80 || true
  expected-output-pattern: '10.10.14.2:80'
 
+ - name: Test ARP
+ uses: ./.github/actions/pwru-test
+ with:
+ test-name: arp
+ pwru-pcap-filter: arp
+ traffic-setup: |
+ for dev in $(ip --br l | awk '{print $1}'); do ip neigh flush dev $dev || true; done
+ ping -c1 8.8.8.8
+ expected-output-pattern: 'arp_rcv'
+
  - name: Fetch artifacts
  if: ${{ !success() }}
  uses: cilium/little-vm-helper@908ab1ff8a596a03cd5221a1f8602dc44c3f906d