Adding IPv4 and IPv6 ERSPAN tests

docs/api_wiki/README.md

@@ -171,6 +171,8 @@ def test_fun(duthosts, rand_one_dut_hostname, ptfhost):
 
 - [get_interfaces_status](sonichost_methods/get_interfaces_status.md) - Get interfaces status on the DUT and parse the result into a dict.
 
+- [show_interfaces_portchannel](sonichost_methods/show_interfaces_portchannel.md) - Retrieve information about PortChannel interfaces and parse the result into a dict.
+
 - [show_ipv6_interfaces](sonichost_methods/show_ipv6_interfaces.md) - Retrieve information about IPv6 interfaces and parse the result into a dict.
 
 - [get_intf_link_local_ipv6_addr](sonichost_methods/get_intf_link_local_ipv6_addr.md) - Get the link local ipv6 address of the interface

docs/api_wiki/sonic_asic_methods/show_interfaces_portchannel.md

@@ -0,0 +1,47 @@
+# show_interfaces_portchannel
+
+- [Overview](#overview)
+- [Examples](#examples)
+- [Arguments](#arguments)
+- [Expected Output](#expected-output)
+
+## Overview
+Retrieve information about PortChannel interfaces and parse the result into a dict.
+
+## Examples
+```python
+def test_fun(duthosts, rand_one_dut_hostname):
+    duthost = duthosts[rand_one_dut_hostname]
+
+    portchannel_ifs = duthost.show_interfaces_portchannel()
+```
+
+## Arguments
+This function takes no arguments.
+
+## Expected Output
+Returns a dictionary containing information about the DUT's PortChannel interfaces.
+Note: The returned dictionary does not include protocol and port flags.
+
+Example output:
+
+```json
+{
+    "PortChannel101": {
+        "protocol": "LACP",
+        "ports": ["Ethernet0"]
+    },
+    "PortChannel102": {
+        "protocol": "LACP",
+        "ports": ["Ethernet20", "Ethernet40"]
+    },
+    "PortChannel103": {
+        "protocol": "LACP",
+        "ports": ["Ethernet68", "Ethernet72", "Ethernet76"]
+    },
+    "PortChannel104": {
+        "protocol": "LACP",
+        "ports": ["Ethernet80"]
+    }
+}
+```

tests/common/devices/sonic.py

@@ -1952,6 +1952,57 @@ def show_ipv6_interfaces(self):
             result[iface]["oper"] = admin_oper[1]
         return result
 
+    def show_interfaces_portchannel(self) -> dict:
+        '''
+        Retrieves information about PortChannel interfaces by running "show interfaces portchannel" on the DUT
+        and then parses the result into a dict.
+
+        Example output:
+            {
+                "PortChannel101": {
+                    "protocol": "LACP",
+                    "ports": ["Ethernet0"]
+                },
+                "PortChannel102": {
+                    "protocol": "LACP",
+                    "ports": ["Ethernet20", "Ethernet40"]
+                },
+                "PortChannel103": {
+                    "protocol": "LACP",
+                    "ports": ["Ethernet68", "Ethernet72", "Ethernet76"]
+                },
+                "PortChannel104": {
+                    "protocol": "LACP",
+                    "ports": ["Ethernet80"]
+                }
+            }
+        '''
+        def remove_flags(string: str) -> str:
+            '''
+            Example:
+                Input: LACP(A)(Up)
+                Output: LACP
+            '''
+            p = string.find('(')
+            if p != -1:
+                string = string[0:p]
+            return string
+
+        result = {pc_info["team dev"]: pc_info for pc_info in self.show_and_parse("show interfaces portchannel")}
+        for portchannel in result.keys():
+            del result[portchannel]["no."]
+            del result[portchannel]["team dev"]  # redundant, because it is equal to the key (i.e., portchannel)
+            # Removing protocol flags
+            protocol = remove_flags(result[portchannel]["protocol"])
+            result[portchannel]["protocol"] = protocol
+            # Removing flags on each member port
+            member_ports = result[portchannel]["ports"].split()
+            for i in range(0, len(member_ports)):
+                port = remove_flags(member_ports[i])
+                member_ports[i] = port
+            result[portchannel]["ports"] = member_ports
+        return result
+
     def get_crm_facts(self):
         """Run various 'crm show' commands and parse their output to gather CRM facts