Add patch method in EthernetSwitchACLRule in RSD 2.1

Change-Id: I5e98ada0bd68c6fa1545ff0d5e8f117a955c7119

rsd_lib/resources/v2_1/ethernet_switch/ethernet_switch_acl_rule.py

@@ -130,6 +130,17 @@ class EthernetSwitchACLRule(rsd_lib_base.ResourceBase):
             )
         ]
 
+    def update(self, data=None):
+        """Update a new ACL rule
+
+        :param data: JSON for acl_rule
+        """
+        update_schema = acl_rule_schema.acl_rule_req_schema
+        del update_schema["required"]
+        if data is not None or len(data) > 0:
+            validate(data, update_schema)
+        self._conn.patch(self.path, data=data)
+
 
 class EthernetSwitchACLRuleCollection(rsd_lib_base.ResourceCollectionBase):
     @property

rsd_lib/tests/unit/resources/v2_1/ethernet_switch/test_ethernet_switch_acl_rule.py

@@ -197,6 +197,23 @@ class EthernetSwitchACLRuleTestCase(testtools.TestCase):
         # | WHEN & THEN |
         self.assertIsInstance(self.acl_rule_inst.mirror_port_region, list)
 
+    def test_update(self):
+        data = {
+            "RuleId": 1,
+            "Action": "Permit",
+            "Condition": {
+                "IPSource": {
+                    "IPv4Address": "192.168.6.0",
+                    "Mask": "0.0.0.255",
+                },
+            },
+        }
+        self.acl_rule_inst.update(data)
+        self.acl_rule_inst._conn.patch.assert_called_once_with(
+            "/redfish/v1/EthernetSwitches/Switch1/ACLs/ACL1/Rules/Rule1",
+            data=data,
+        )
+
 
 class EthernetSwitchACLRuleCollectionTestCase(testtools.TestCase):
     def setUp(self):