[wol_test] implement tests for wol (sonic-net#14299)

Implement wol test plan: https://github.com/sonic-net/sonic-mgmt/blob/master/docs/testplan/WoL-test-plan.md

tests/common/utilities.py

@@ -1135,7 +1135,7 @@ def capture_and_check_packet_on_dut(
         wait_time: the time to wait before stopping the packet capture, default is 1 second
     """
     pcap_save_path = "/tmp/func_capture_and_check_packet_on_dut_%s.pcap" % (str(uuid.uuid4()))
-    cmd_capture_pkts = "sudo nohup tcpdump --immediate-mode -U -i %s -w %s >/dev/null 2>&1 %s & echo $!" \
+    cmd_capture_pkts = "nohup tcpdump --immediate-mode -U -i %s -w %s >/dev/null 2>&1 %s & echo $!" \
         % (interface, pcap_save_path, pkts_filter)
     tcpdump_pid = duthost.shell(cmd_capture_pkts)["stdout"]
     cmd_check_if_process_running = "ps -p %s | grep %s |grep -v grep | wc -l" % (tcpdump_pid, tcpdump_pid)

tests/wol/conftest.py

@@ -0,0 +1,13 @@
+import pytest
+
+
+@pytest.fixture(scope="module")
+def get_connected_dut_intf_to_ptf_index(duthost, tbinfo):
+    disabled_host_interfaces = tbinfo['topo']['properties']['topology'].get('disabled_host_interfaces', [])
+    connected_ptf_ports_idx = [interface for interface in
+                               tbinfo['topo']['properties']['topology'].get('host_interfaces', [])
+                               if interface not in disabled_host_interfaces]
+    dut_intf_to_ptf_index = duthost.get_extended_minigraph_facts(tbinfo)['minigraph_ptf_indices']
+    connected_dut_intf_to_ptf_index = [(k, v) for k, v in dut_intf_to_ptf_index.items() if v in connected_ptf_ports_idx]
+
+    yield connected_dut_intf_to_ptf_index