fix some pylint issues
[transportpce.git] / tests / transportpce_tests / 2.2.1 / test_topology.py
index 9d299df752a46e33fa4f4710de62c31138e5aacc..936ccfc5d4761b5bed7fc2004211f32ff7facd5d 100644 (file)
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 ##############################################################################
-#Copyright (c) 2017 Orange, Inc. and others.  All rights reserved.
+# Copyright (c) 2017 Orange, Inc. and others.  All rights reserved.
 #
 # All rights reserved. This program and the accompanying materials
 # are made available under the terms of the Apache License, Version 2.0
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
-import json
-import os
-import psutil
-import requests
-import signal
-import shutil
-import subprocess
-import time
+# pylint: disable=no-member
+# pylint: disable=too-many-public-methods
+# pylint: disable=too-many-lines
+
 import unittest
+import time
 import logging
-import test_utils
+import requests
+from common import test_utils
 
-class TransportPCEtesting(unittest.TestCase):
 
-    honeynode_process1 = None
-    honeynode_process2 = None
-    honeynode_process3 = None
-    honeynode_process4 = None
-    odl_process = None
-    restconf_baseurl = "http://localhost:8181/restconf"
+class TransportPCEtesting(unittest.TestCase):
 
-#START_IGNORE_XTESTING
+    processes = None
 
     @classmethod
     def setUpClass(cls):
-        print ("starting honeynode1...")
-        cls.honeynode_process1 = test_utils.start_xpdra_honeynode()
-        time.sleep(20)
-
-        print ("starting honeynode2...")
-        cls.honeynode_process2 = test_utils.start_roadma_honeynode()
-        time.sleep(20)
-
-        print ("starting honeynode3...")
-        cls.honeynode_process3 = test_utils.start_roadmb_honeynode()
-        time.sleep(20)
-
-        print ("starting honeynode4...")
-        cls.honeynode_process4 = test_utils.start_roadmc_honeynode()
-        time.sleep(20)
-        print ("all honeynodes started")
-
-        print ("starting opendaylight...")
-        cls.odl_process = test_utils.start_tpce()
-        time.sleep(60)
-        print ("opendaylight started")
+        cls.processes = test_utils.start_tpce()
+        cls.processes = test_utils.start_sims(['xpdra', 'roadma', 'roadmb', 'roadmc'])
 
     @classmethod
     def tearDownClass(cls):
-        for child in psutil.Process(cls.odl_process.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.odl_process.send_signal(signal.SIGINT)
-        cls.odl_process.wait()
-        for child in psutil.Process(cls.honeynode_process1.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.honeynode_process1.send_signal(signal.SIGINT)
-        cls.honeynode_process1.wait()
-        for child in psutil.Process(cls.honeynode_process2.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.honeynode_process2.send_signal(signal.SIGINT)
-        cls.honeynode_process2.wait()
-        for child in psutil.Process(cls.honeynode_process3.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.honeynode_process3.send_signal(signal.SIGINT)
-        cls.honeynode_process3.wait()
-        for child in psutil.Process(cls.honeynode_process4.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.honeynode_process4.send_signal(signal.SIGINT)
-        cls.honeynode_process4.wait()
-
+        # pylint: disable=not-an-iterable
+        for process in cls.processes:
+            test_utils.shutdown_process(process)
+        print("all processes killed")
 
     def setUp(self):
         time.sleep(5)
 
-#END_IGNORE_XTESTING
-
     def test_01_connect_ROADM_A1(self):
-        #Config ROADMA
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-A1"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-             "node-id": "ROADM-A1",
-             "netconf-node-topology:username": "admin",
-             "netconf-node-topology:password": "admin",
-             "netconf-node-topology:host": "127.0.0.1",
-             "netconf-node-topology:port": "17841",
-             "netconf-node-topology:tcp-only": "false",
-             "netconf-node-topology:pass-through": {}}]}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "PUT", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.created)
-        time.sleep(20)
+        response = test_utils.mount_device("ROADM-A1", 'roadma')
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_02_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
         logging.info(res)
-        self.assertEqual(res['network'][0]['node'][0]['node-id'],'NodeA')
-        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'],'NodeA')
+        self.assertEqual(res['network'][0]['node'][0]['node-id'], 'NodeA')
+        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'], 'NodeA')
 
     def test_03_getOpenRoadmNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        self.assertEqual(res['network'][0]['node'][0]['node-id'],'ROADM-A1')
-        self.assertEqual(res['network'][0]['node'][0]['supporting-node'][0]['network-ref'],'clli-network')
-        self.assertEqual(res['network'][0]['node'][0]['supporting-node'][0]['node-ref'],'NodeA')
-        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-common-network:node-type'],'ROADM')
-        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-network:model'],'model2')
+        self.assertEqual(res['network'][0]['node'][0]['node-id'], 'ROADM-A1')
+        self.assertEqual(res['network'][0]['node'][0]['supporting-node'][0]['network-ref'], 'clli-network')
+        self.assertEqual(res['network'][0]['node'][0]['supporting-node'][0]['node-ref'], 'NodeA')
+        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-common-network:node-type'], 'ROADM')
+        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-network:model'], 'model2')
 
     def test_04_getLinks_OpenroadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        self.assertEqual(nbLink,10)
-        expressLink=['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                     'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
-        addLink=['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
-                 'ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                 'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
-                 'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
-        dropLink=['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
-                  'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
-                  'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
-                  'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
-        for i in range(0,nbLink):
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        self.assertEqual(nbLink, 10)
+        expressLink = ['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                       'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
+        addLink = ['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
+        dropLink = ['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
+        for i in range(0, nbLink):
             linkId = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            if (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='EXPRESS-LINK'):
-                find= linkId in expressLink
+            if (res['network'][0]['ietf-network-topology:link'][i]
+                   ['org-openroadm-common-network:link-type'] == 'EXPRESS-LINK'):
+                find = linkId in expressLink
                 self.assertEqual(find, True)
                 expressLink.remove(linkId)
-            elif (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='ADD-LINK'):
-                find= linkId in addLink
+            elif (res['network'][0]['ietf-network-topology:link'][i]
+                     ['org-openroadm-common-network:link-type'] == 'ADD-LINK'):
+                find = linkId in addLink
                 self.assertEqual(find, True)
                 addLink.remove(linkId)
-            elif (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='DROP-LINK'):
-                find= linkId in dropLink
+            elif (res['network'][0]['ietf-network-topology:link'][i]
+                     ['org-openroadm-common-network:link-type'] == 'DROP-LINK'):
+                find = linkId in dropLink
                 self.assertEqual(find, True)
                 dropLink.remove(linkId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(expressLink),0)
-        self.assertEqual(len(addLink),0)
-        self.assertEqual(len(dropLink),0)
+        self.assertEqual(len(expressLink), 0)
+        self.assertEqual(len(addLink), 0)
+        self.assertEqual(len(dropLink), 0)
 
     def test_05_getNodes_OpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         res = response.json()
-        #Tests related to nodes
+        # Tests related to nodes
         self.assertEqual(response.status_code, requests.codes.ok)
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,4)
-        listNode=['ROADM-A1-SRG1', 'ROADM-A1-SRG3','ROADM-A1-DEG1','ROADM-A1-DEG2']
-        for i in range(0,nbNode):
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 4)
+        listNode = ['ROADM-A1-SRG1', 'ROADM-A1-SRG3', 'ROADM-A1-DEG1', 'ROADM-A1-DEG2']
+        for i in range(0, nbNode):
             self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                           res['network'][0]['node'][i]['supporting-node'])
-            nodeType=res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
-            nodeId=res['network'][0]['node'][i]['node-id']
-            if(nodeId=='ROADM-A1-SRG1'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            nodeType = res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
+            nodeId = res['network'][0]['node'][i]['node-id']
+            if nodeId == 'ROADM-A1-SRG1':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
@@ -207,10 +129,10 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-SRG3'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            elif nodeId == 'ROADM-A1-SRG3':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
@@ -220,9 +142,9 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG1'):
-                #Test related to DEG1
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG1':
+                # Test related to DEG1
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -232,9 +154,9 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG2'):
-                #Test related to DEG2
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG2':
+                # Test related to DEG2
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -246,128 +168,104 @@ class TransportPCEtesting(unittest.TestCase):
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_06_connect_XPDRA(self):
-         url = ("{}/config/network-topology:"
-                 "network-topology/topology/topology-netconf/node/XPDR-A1"
-                .format(self.restconf_baseurl))
-         data = {"node": [{
-              "node-id": "XPDR-A1",
-              "netconf-node-topology:username": "admin",
-              "netconf-node-topology:password": "admin",
-              "netconf-node-topology:host": "127.0.0.1",
-              "netconf-node-topology:port": "17840",
-              "netconf-node-topology:tcp-only": "false",
-              "netconf-node-topology:pass-through": {}}]}
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-              "PUT", url, data=json.dumps(data), headers=headers,
-              auth=('admin', 'admin'))
-         self.assertEqual(response.status_code, requests.codes.created)
-         time.sleep(30)
+        response = test_utils.mount_device("XPDR-A1", 'xpdra')
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_07_getClliNetwork(self):
-         url = ("{}/config/ietf-network:networks/network/clli-network"
-               .format(self.restconf_baseurl))
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
-         self.assertEqual(response.status_code, requests.codes.ok)
-         res = response.json()
-         self.assertEqual(res['network'][0]['node'][0]['node-id'],'NodeA')
-         self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'],'NodeA')
+        response = test_utils.get_clli_net_request()
+        self.assertEqual(response.status_code, requests.codes.ok)
+        res = response.json()
+        self.assertEqual(res['network'][0]['node'][0]['node-id'], 'NodeA')
+        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'], 'NodeA')
 
     def test_08_getOpenRoadmNetwork(self):
-         url = ("{}/config/ietf-network:networks/network/openroadm-network"
-               .format(self.restconf_baseurl))
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
-         self.assertEqual(response.status_code, requests.codes.ok)
-         res = response.json()
-         nbNode=len(res['network'][0]['node'])
-         self.assertEqual(nbNode,2)
-         for i in range(0,nbNode):
-             self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['network-ref'],'clli-network')
-             self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'],'NodeA')
-             nodeId=res['network'][0]['node'][i]['node-id']
-             if(nodeId=='XPDR-A1'):
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'XPONDER')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],'model2')
-             elif(nodeId=='ROADM-A1'):
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'ROADM')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],'model2')
-             else:
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_net_request()
+        self.assertEqual(response.status_code, requests.codes.ok)
+        res = response.json()
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 2)
+        for i in range(0, nbNode):
+            self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['network-ref'], 'clli-network')
+            self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'], 'NodeA')
+            nodeId = res['network'][0]['node'][i]['node-id']
+            if nodeId == 'XPDR-A1':
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'XPONDER')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'], 'model2')
+            elif nodeId == 'ROADM-A1':
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'ROADM')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'], 'model2')
+            else:
                 self.assertFalse(True)
 
     def test_09_getNodes_OpenRoadmTopology(self):
-         url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-               .format(self.restconf_baseurl))
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
-         res = response.json()
-         #Tests related to nodes
-         self.assertEqual(response.status_code, requests.codes.ok)
-         nbNode=len(res['network'][0]['node'])
-         self.assertEqual(nbNode,5)
-         listNode=['XPDR-A1-XPDR1','ROADM-A1-SRG1','ROADM-A1-SRG3','ROADM-A1-DEG1','ROADM-A1-DEG2']
-         for i in range(0,nbNode):
-             nodeType=res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
-             nodeId=res['network'][0]['node'][i]['node-id']
-             #Tests related to XPDRA nodes
-             if(nodeId=='XPDR-A1-XPDR1'):
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDR-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(nodeType,'XPONDER')
-                 nbTps=len(res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 client = 0
-                 network = 0
-                 for j in range(0,nbTps):
-                     tpType=res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]['org-openroadm-common-network:tp-type']
-                     tpId=res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]['tp-id']
-                     if (tpType=='XPONDER-CLIENT'):
-                         client += 1
-                     elif (tpType=='XPONDER-NETWORK'):
-                         network += 1
-                     if (tpId == 'XPDR1-NETWORK2'):
-                         self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
-                                          ['transportpce-topology:associated-connection-map-port'],'XPDR1-CLIENT2')
-                     if (tpId == 'XPDR1-CLIENT2'):
-                         self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
-                                          ['transportpce-topology:associated-connection-map-port'],'XPDR1-NETWORK2')
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
+        res = response.json()
+        # Tests related to nodes
+        self.assertEqual(response.status_code, requests.codes.ok)
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 5)
+        listNode = ['XPDR-A1-XPDR1', 'ROADM-A1-SRG1', 'ROADM-A1-SRG3', 'ROADM-A1-DEG1', 'ROADM-A1-DEG2']
+        for i in range(0, nbNode):
+            nodeType = res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
+            nodeId = res['network'][0]['node'][i]['node-id']
+            # Tests related to XPDRA nodes
+            if nodeId == 'XPDR-A1-XPDR1':
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDR-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(nodeType, 'XPONDER')
+                nbTps = len(res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                client = 0
+                network = 0
+                for j in range(0, nbTps):
+                    tpType = (res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                 ['org-openroadm-common-network:tp-type'])
+                    tpId = res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]['tp-id']
+                    if tpType == 'XPONDER-CLIENT':
+                        client += 1
+                    elif tpType == 'XPONDER-NETWORK':
+                        network += 1
+                    if tpId == 'XPDR1-NETWORK2':
+                        self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                         ['transportpce-topology:associated-connection-map-port'], 'XPDR1-CLIENT2')
+                    if tpId == 'XPDR1-CLIENT2':
+                        self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                         ['transportpce-topology:associated-connection-map-port'], 'XPDR1-NETWORK2')
 
-                 self.assertTrue(client == 2)
-                 self.assertTrue(network == 2)
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-SRG1'):
-                 #Test related to SRG1
-                 self.assertEqual(nodeType,'SRG')
-                 self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
-                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-SRG3'):
-                 #Test related to SRG1
-                 self.assertEqual(nodeType,'SRG')
-                 self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
-                 self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-DEG1'):
-                #Test related to DEG1
-                self.assertEqual(nodeType,'DEGREE')
+                self.assertTrue(client == 2)
+                self.assertTrue(network == 2)
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-SRG1':
+                Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
+                self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-SRG3':
+                Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
+                self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-DEG1':
+                # Test related to DEG1
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -375,9 +273,9 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-DEG2'):
-                #Test related to DEG2
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG2':
+                # Test related to DEG2
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -385,128 +283,79 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-             else:
+            else:
                 self.assertFalse(True)
-         self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
-    #Connect the tail XPDRA to ROADMA and vice versa
+    # Connect the tail XPDRA to ROADMA and vice versa
     def test_10_connect_tail_xpdr_rdm(self):
-         #Connect the tail: XPDRA to ROADMA
-        url = ("{}/operations/transportpce-networkutils:init-xpdr-rdm-links"
-                .format(self.restconf_baseurl))
-        data = {"networkutils:input": {
-             "networkutils:links-input": {
-               "networkutils:xpdr-node": "XPDR-A1",
-               "networkutils:xpdr-num": "1",
-               "networkutils:network-num": "1",
-               "networkutils:rdm-node": "ROADM-A1",
-               "networkutils:srg-num": "1",
-               "networkutils:termination-point-num": "SRG1-PP1-TXRX"
-            }
-          }
-        }
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-              "POST", url, data=json.dumps(data), headers=headers,
-              auth=('admin', 'admin'))
+        # Connect the tail: XPDRA to ROADMA
+        response = test_utils.connect_xpdr_to_rdm_request("XPDR-A1", "1", "1",
+                                                          "ROADM-A1", "1", "SRG1-PP1-TXRX")
         self.assertEqual(response.status_code, requests.codes.ok)
 
     def test_11_connect_tail_rdm_xpdr(self):
-         #Connect the tail: ROADMA to XPDRA
-         url = ("{}/operations/transportpce-networkutils:init-rdm-xpdr-links"
-                 .format(self.restconf_baseurl))
-         data = {"networkutils:input": {
-              "networkutils:links-input": {
-                "networkutils:xpdr-node": "XPDR-A1",
-                "networkutils:xpdr-num": "1",
-                "networkutils:network-num": "1",
-                "networkutils:rdm-node": "ROADM-A1",
-                "networkutils:srg-num": "1",
-                "networkutils:termination-point-num": "SRG1-PP1-TXRX"
-             }
-           }
-         }
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-               "POST", url, data=json.dumps(data), headers=headers,
-               auth=('admin', 'admin'))
-         self.assertEqual(response.status_code, requests.codes.ok)
+        response = test_utils.connect_rdm_to_xpdr_request("XPDR-A1", "1", "1",
+                                                          "ROADM-A1", "1", "SRG1-PP1-TXRX")
+        self.assertEqual(response.status_code, requests.codes.ok)
 
     def test_12_getLinks_OpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-               .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        self.assertEqual(nbLink,12)
-        expressLink=['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX','ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
-        addLink=['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                 'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
-        dropLink=['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
-                  'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
-        XPDR_IN=['ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1']
-        XPDR_OUT=['XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX']
-        for i in range(0,nbLink):
-            nodeType=res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
-            linkId=res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            if(nodeType=='EXPRESS-LINK'):
-                find= linkId in expressLink
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        self.assertEqual(nbLink, 12)
+        expressLink = ['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                       'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
+        addLink = ['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
+        dropLink = ['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
+        XPDR_IN = ['ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1']
+        XPDR_OUT = ['XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX']
+        for i in range(0, nbLink):
+            nodeType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            linkId = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            if nodeType == 'EXPRESS-LINK':
+                find = linkId in expressLink
                 self.assertEqual(find, True)
                 expressLink.remove(linkId)
-            elif(nodeType=='ADD-LINK'):
-                find= linkId in addLink
+            elif nodeType == 'ADD-LINK':
+                find = linkId in addLink
                 self.assertEqual(find, True)
                 addLink.remove(linkId)
-            elif(nodeType=='DROP-LINK'):
-                find= linkId in dropLink
+            elif nodeType == 'DROP-LINK':
+                find = linkId in dropLink
                 self.assertEqual(find, True)
                 dropLink.remove(linkId)
-            elif(nodeType=='XPONDER-INPUT'):
-                find= linkId in XPDR_IN
+            elif nodeType == 'XPONDER-INPUT':
+                find = linkId in XPDR_IN
                 self.assertEqual(find, True)
                 XPDR_IN.remove(linkId)
-            elif(nodeType=='XPONDER-OUTPUT'):
-                find= linkId in XPDR_OUT
+            elif nodeType == 'XPONDER-OUTPUT':
+                find = linkId in XPDR_OUT
                 self.assertEqual(find, True)
                 XPDR_OUT.remove(linkId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(expressLink),0)
-        self.assertEqual(len(addLink),0)
-        self.assertEqual(len(dropLink),0)
-        self.assertEqual(len(XPDR_IN),0)
-        self.assertEqual(len(XPDR_OUT),0)
+        self.assertEqual(len(expressLink), 0)
+        self.assertEqual(len(addLink), 0)
+        self.assertEqual(len(dropLink), 0)
+        self.assertEqual(len(XPDR_IN), 0)
+        self.assertEqual(len(XPDR_OUT), 0)
 
     def test_13_connect_ROADMC(self):
-        #Config ROADMC
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-C1"
-                .format(self.restconf_baseurl))
-        data = {"node": [{
-             "node-id": "ROADM-C1",
-             "netconf-node-topology:username": "admin",
-             "netconf-node-topology:password": "admin",
-             "netconf-node-topology:host": "127.0.0.1",
-             "netconf-node-topology:port": "17843",
-             "netconf-node-topology:tcp-only": "false",
-             "netconf-node-topology:pass-through": {}}]}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "PUT", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.created)
-        time.sleep(20)
+        response = test_utils.mount_device("ROADM-C1", 'roadmc')
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_14_omsAttributes_ROADMA_ROADMC(self):
         # Config ROADMA-ROADMC oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
             "auto-spanloss": "true",
             "engineered-spanloss": 12.2,
@@ -515,18 +364,11 @@ class TransportPCEtesting(unittest.TestCase):
                 "fiber-type": "smf",
                 "SRLG-length": 100000,
                 "pmd": 0.5}]}}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "PUT", url, data=json.dumps(data), headers=headers,
-            auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_15_omsAttributes_ROADMC_ROADMA(self):
         # Config ROADM-C1-ROADM-A1 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
             "auto-spanloss": "true",
             "engineered-spanloss": 12.2,
@@ -536,289 +378,259 @@ class TransportPCEtesting(unittest.TestCase):
                 "SRLG-length": 100000,
                 "pmd": 0.5}]}}
 
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "PUT", url, data=json.dumps(data), headers=headers,
-            auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_16_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        listNode=['NodeA','NodeC']
-        for i in range(0,nbNode):
+        nbNode = len(res['network'][0]['node'])
+        listNode = ['NodeA', 'NodeC']
+        for i in range(0, nbNode):
             nodeId = res['network'][0]['node'][i]['node-id']
-            find= nodeId in listNode
+            find = nodeId in listNode
             self.assertEqual(find, True)
-            if(nodeId=='NodeA'):
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'],'NodeA')
+            if nodeId == 'NodeA':
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeA')
             else:
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'],'NodeC')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeC')
             listNode.remove(nodeId)
-        self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_17_getOpenRoadmNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,3)
-        listNode=['XPDR-A1','ROADM-A1','ROADM-C1']
-        for i in range(0,nbNode):
-            self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['network-ref'],'clli-network')
-            nodeId=res['network'][0]['node'][i]['node-id']
-            if(nodeId=='XPDR-A1'):
-                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'],'NodeA')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'XPONDER')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],'model2')
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 3)
+        listNode = ['XPDR-A1', 'ROADM-A1', 'ROADM-C1']
+        for i in range(0, nbNode):
+            self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['network-ref'], 'clli-network')
+            nodeId = res['network'][0]['node'][i]['node-id']
+            if nodeId == 'XPDR-A1':
+                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'], 'NodeA')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'XPONDER')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'], 'model2')
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1'):
-                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'],'NodeA')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'ROADM')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],'model2')
+            elif nodeId == 'ROADM-A1':
+                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'], 'NodeA')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'ROADM')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'], 'model2')
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-C1'):
-                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'],'NodeC')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'ROADM')
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],'model2')
+            elif nodeId == 'ROADM-C1':
+                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'], 'NodeC')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'ROADM')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'], 'model2')
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_18_getROADMLinkOpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        self.assertEqual(nbLink,20)
-        expressLink=['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX','ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
-                     'ROADM-C1-DEG2-DEG2-CTP-TXRXtoROADM-C1-DEG1-DEG1-CTP-TXRX','ROADM-C1-DEG1-DEG1-CTP-TXRXtoROADM-C1-DEG2-DEG2-CTP-TXRX']
-        addLink=['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                 'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                 'ROADM-C1-SRG1-SRG1-CP-TXRXtoROADM-C1-DEG2-DEG2-CTP-TXRX','ROADM-C1-SRG1-SRG1-CP-TXRXtoROADM-C1-DEG1-DEG1-CTP-TXRX']
-        dropLink=['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
-                  'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
-                  'ROADM-C1-DEG1-DEG1-CTP-TXRXtoROADM-C1-SRG1-SRG1-CP-TXRX','ROADM-C1-DEG2-DEG2-CTP-TXRXtoROADM-C1-SRG1-SRG1-CP-TXRX']
-        R2RLink=['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX','ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX']
-        XPDR_IN=['ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1']
-        XPDR_OUT=['XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX']
-        for i in range(0,nbLink):
-            nodeType=res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
-            linkId=res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            if(nodeType=='EXPRESS-LINK'):
-                find= linkId in expressLink
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        self.assertEqual(nbLink, 20)
+        expressLink = ['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                       'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                       'ROADM-C1-DEG2-DEG2-CTP-TXRXtoROADM-C1-DEG1-DEG1-CTP-TXRX',
+                       'ROADM-C1-DEG1-DEG1-CTP-TXRXtoROADM-C1-DEG2-DEG2-CTP-TXRX']
+        addLink = ['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                   'ROADM-C1-SRG1-SRG1-CP-TXRXtoROADM-C1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-C1-SRG1-SRG1-CP-TXRXtoROADM-C1-DEG1-DEG1-CTP-TXRX']
+        dropLink = ['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
+                    'ROADM-C1-DEG1-DEG1-CTP-TXRXtoROADM-C1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-C1-DEG2-DEG2-CTP-TXRXtoROADM-C1-SRG1-SRG1-CP-TXRX']
+        R2RLink = ['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX',
+                   'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX']
+        XPDR_IN = ['ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1']
+        XPDR_OUT = ['XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX']
+        for i in range(0, nbLink):
+            nodeType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            linkId = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            if nodeType == 'EXPRESS-LINK':
+                find = linkId in expressLink
                 self.assertEqual(find, True)
                 expressLink.remove(linkId)
-            elif(nodeType=='ADD-LINK'):
-                find= linkId in addLink
+            elif nodeType == 'ADD-LINK':
+                find = linkId in addLink
                 self.assertEqual(find, True)
                 addLink.remove(linkId)
-            elif(nodeType=='DROP-LINK'):
-                find= linkId in dropLink
+            elif nodeType == 'DROP-LINK':
+                find = linkId in dropLink
                 self.assertEqual(find, True)
                 dropLink.remove(linkId)
-            elif(nodeType=='ROADM-TO-ROADM'):
-                find= linkId in R2RLink
+            elif nodeType == 'ROADM-TO-ROADM':
+                find = linkId in R2RLink
                 self.assertEqual(find, True)
                 R2RLink.remove(linkId)
-            elif(nodeType=='XPONDER-INPUT'):
-                find= linkId in XPDR_IN
+            elif nodeType == 'XPONDER-INPUT':
+                find = linkId in XPDR_IN
                 self.assertEqual(find, True)
                 XPDR_IN.remove(linkId)
-            elif(nodeType=='XPONDER-OUTPUT'):
-                find= linkId in XPDR_OUT
+            elif nodeType == 'XPONDER-OUTPUT':
+                find = linkId in XPDR_OUT
                 self.assertEqual(find, True)
                 XPDR_OUT.remove(linkId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(expressLink),0)
-        self.assertEqual(len(addLink),0)
-        self.assertEqual(len(dropLink),0)
-        self.assertEqual(len(R2RLink),0)
-        self.assertEqual(len(XPDR_IN),0)
-        self.assertEqual(len(XPDR_OUT),0)
+        self.assertEqual(len(expressLink), 0)
+        self.assertEqual(len(addLink), 0)
+        self.assertEqual(len(dropLink), 0)
+        self.assertEqual(len(R2RLink), 0)
+        self.assertEqual(len(XPDR_IN), 0)
+        self.assertEqual(len(XPDR_OUT), 0)
 
     def test_19_getLinkOmsAttributesOpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        self.assertEqual(nbLink,20)
-        R2RLink=['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX',
-                 'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX']
-        for i in range(0,nbLink):
-            nodeType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
-            link_id=res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            if(link_id in R2RLink):
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        self.assertEqual(nbLink, 20)
+        R2RLink = ['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX',
+                   'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX']
+        for i in range(0, nbLink):
+            link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            if link_id in R2RLink:
                 find = False
                 spanLoss = res['network'][0]['ietf-network-topology:link'][i][
                     'org-openroadm-network-topology:OMS-attributes']['span']["engineered-spanloss"]
                 length = res['network'][0]['ietf-network-topology:link'][i][
                     'org-openroadm-network-topology:OMS-attributes']['span']['link-concatenation'][0]['SRLG-length']
-                if((spanLoss!=None)&(length!=None)):
+                if (spanLoss is not None) & (length is not None):
                     find = True
                 self.assertTrue(find)
                 R2RLink.remove(link_id)
-        self.assertEqual(len(R2RLink),0)
+        self.assertEqual(len(R2RLink), 0)
 
     def test_20_getNodes_OpenRoadmTopology(self):
-         url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-               .format(self.restconf_baseurl))
-         headers = {'content-type': 'application/json'}
-         response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
-         res = response.json()
-         #Tests related to nodes
-         self.assertEqual(response.status_code, requests.codes.ok)
-         nbNode=len(res['network'][0]['node'])
-         self.assertEqual(nbNode,8)
-         listNode=['XPDR-A1-XPDR1',
-                   'ROADM-A1-SRG1','ROADM-A1-SRG3','ROADM-A1-DEG1','ROADM-A1-DEG2',
-                   'ROADM-C1-SRG1','ROADM-C1-DEG1', 'ROADM-C1-DEG2']
-         #************************Tests related to XPDRA nodes
-         for i in range(0,nbNode):
-             nodeType=res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
-             nodeId=res['network'][0]['node'][i]['node-id']
-             if(nodeId=='XPDR-A1-XPDR1'):
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDR-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(nodeType,'XPONDER')
-                 nbTps=len(res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertTrue(nbTps >= 4)
-                 client = 0
-                 network = 0
-                 for j in range(0,nbTps):
-                     tpType=res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]['org-openroadm-common-network:tp-type']
-                     if (tpType=='XPONDER-CLIENT'):
-                         client += 1
-                     elif (tpType=='XPONDER-NETWORK'):
-                         network += 1
-                 self.assertTrue(client == 2)
-                 self.assertTrue(network == 2)
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-SRG1'):
-                 #Test related to SRG1
-                 self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
-                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'SRG')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-SRG3'):
-                 #Test related to SRG1
-                 self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
-                 self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'SRG')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-DEG1'):
-                 #Test related to DEG1
-                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'DEGREE')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-A1-DEG2'):
-                 #Test related to DEG2
-                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'DEGREE')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-C1-SRG1'):
-                 #Test related to SRG1
-                 self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
-                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'SRG')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-C1-DEG1'):
-                 #Test related to DEG1
-                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'DEGREE')
-                 listNode.remove(nodeId)
-             elif(nodeId=='ROADM-C1-DEG2'):
-                 #Test related to DEG1
-                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
-                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
-                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
-                               res['network'][0]['node'][i]['supporting-node'])
-                 self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],'DEGREE')
-                 listNode.remove(nodeId)
-             else:
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
+        res = response.json()
+        # Tests related to nodes
+        self.assertEqual(response.status_code, requests.codes.ok)
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 8)
+        listNode = ['XPDR-A1-XPDR1',
+                    'ROADM-A1-SRG1', 'ROADM-A1-SRG3', 'ROADM-A1-DEG1', 'ROADM-A1-DEG2',
+                    'ROADM-C1-SRG1', 'ROADM-C1-DEG1', 'ROADM-C1-DEG2']
+        # ************************Tests related to XPDRA nodes
+        for i in range(0, nbNode):
+            nodeType = res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
+            nodeId = res['network'][0]['node'][i]['node-id']
+            if nodeId == 'XPDR-A1-XPDR1':
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDR-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(nodeType, 'XPONDER')
+                nbTps = len(res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertTrue(nbTps >= 4)
+                client = 0
+                network = 0
+                for j in range(0, nbTps):
+                    tpType = (res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                 ['org-openroadm-common-network:tp-type'])
+                    if tpType == 'XPONDER-CLIENT':
+                        client += 1
+                    elif tpType == 'XPONDER-NETWORK':
+                        network += 1
+                self.assertTrue(client == 2)
+                self.assertTrue(network == 2)
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-SRG1':
+                # Test related to SRG1
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
+                self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'SRG')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-SRG3':
+                # Test related to SRG1
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
+                self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'SRG')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-DEG1':
+                # Test related to DEG1
+                self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-A1-DEG2':
+                # Test related to DEG2
+                self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-C1-SRG1':
+                # Test related to SRG1
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
+                self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'SRG')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-C1-DEG1':
+                # Test related to DEG1
+                self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                listNode.remove(nodeId)
+            elif nodeId == 'ROADM-C1-DEG2':
+                # Test related to DEG1
+                self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-C1'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                listNode.remove(nodeId)
+            else:
                 self.assertFalse(True)
-         self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_21_connect_ROADMB(self):
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-B1"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-             "node-id": "ROADM-B1",
-             "netconf-node-topology:username": "admin",
-             "netconf-node-topology:password": "admin",
-             "netconf-node-topology:host": "127.0.0.1",
-             "netconf-node-topology:port": "17842",
-             "netconf-node-topology:tcp-only": "false",
-             "netconf-node-topology:pass-through": {}}]}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "PUT", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.created)
-        time.sleep(20)
+        response = test_utils.mount_device("ROADM-B1", 'roadmb')
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_22_omsAttributes_ROADMA_ROADMB(self):
         # Config ROADM-A1-ROADM-B1 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -829,18 +641,11 @@ class TransportPCEtesting(unittest.TestCase):
                     "fiber-type": "smf",
                     "SRLG-length": 100000,
                     "pmd": 0.5}]}}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-                "PUT", url, data=json.dumps(data), headers=headers,
-                auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_23_omsAttributes_ROADMB_ROADMA(self):
         # Config ROADM-B1-ROADM-A1 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -851,18 +656,11 @@ class TransportPCEtesting(unittest.TestCase):
                     "fiber-type": "smf",
                     "SRLG-length": 100000,
                     "pmd": 0.5}]}}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-                "PUT", url, data=json.dumps(data), headers=headers,
-                auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_24_omsAttributes_ROADMB_ROADMC(self):
         # Config ROADM-B1-ROADM-C1 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -873,18 +671,11 @@ class TransportPCEtesting(unittest.TestCase):
                     "fiber-type": "smf",
                     "SRLG-length": 100000,
                     "pmd": 0.5}]}}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-                "PUT", url, data=json.dumps(data), headers=headers,
-                auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_25_omsAttributes_ROADMC_ROADMB(self):
         # Config ROADM-C1-ROADM-B1 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -893,175 +684,127 @@ class TransportPCEtesting(unittest.TestCase):
                     "fiber-type": "smf",
                     "SRLG-length": 100000,
                     "pmd": 0.5}]}}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-                "PUT", url, data=json.dumps(data), headers=headers,
-                auth=('admin', 'admin'))
+        response = test_utils.add_oms_attr_request("ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_26_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        listNode=['NodeA','NodeB','NodeC']
-        for i in range(0,nbNode):
+        nbNode = len(res['network'][0]['node'])
+        listNode = ['NodeA', 'NodeB', 'NodeC']
+        for i in range(0, nbNode):
             nodeId = res['network'][0]['node'][i]['node-id']
-            find= nodeId in listNode
+            find = nodeId in listNode
             self.assertEqual(find, True)
-            if(nodeId=='NodeA'):
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'],'NodeA')
-            elif(nodeId=='NodeB'):
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'],'NodeB')
+            if nodeId == 'NodeA':
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeA')
+            elif nodeId == 'NodeB':
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeB')
             else:
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'],'NodeC')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeC')
             listNode.remove(nodeId)
-        self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_27_verifyDegree(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        listR2RLink=['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX','ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX',
-           'ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX','ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX',
-           'ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX','ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX']
-        for i in range(0,nbLink):
-            if res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type'] == 'ROADM-TO-ROADM':
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        listR2RLink = ['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX',
+                       'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX',
+                       'ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX',
+                       'ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX',
+                       'ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX',
+                       'ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX']
+        for i in range(0, nbLink):
+            if (res['network'][0]['ietf-network-topology:link'][i]
+                   ['org-openroadm-common-network:link-type'] == 'ROADM-TO-ROADM'):
                 link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                find= link_id in listR2RLink
+                find = link_id in listR2RLink
                 self.assertEqual(find, True)
                 listR2RLink.remove(link_id)
-        self.assertEqual(len(listR2RLink),0)
+        self.assertEqual(len(listR2RLink), 0)
 
     def test_28_verifyOppositeLinkTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-               .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        #Tests related to links
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
-        self.assertEqual(nbLink,26)
-        for i in range(0,nbLink):
-            link_id=res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            link_type=res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
-            link_src=res['network'][0]['ietf-network-topology:link'][i]['source']['source-node']
-            link_dest=res['network'][0]['ietf-network-topology:link'][i]['destination']['dest-node']
-            oppLink_id=res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:opposite-link']
-            #Find the opposite link
-            url_oppLink="{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:link/"+oppLink_id
-            url = (url_oppLink.format(self.restconf_baseurl))
-            headers = {'content-type': 'application/json'}
-            response_oppLink = requests.request("GET", url, headers=headers, auth=('admin', 'admin'))
+        # Tests related to links
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
+        self.assertEqual(nbLink, 26)
+        for i in range(0, nbLink):
+            link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            link_type = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            link_src = res['network'][0]['ietf-network-topology:link'][i]['source']['source-node']
+            link_dest = res['network'][0]['ietf-network-topology:link'][i]['destination']['dest-node']
+            oppLink_id = (res['network'][0]['ietf-network-topology:link'][i]
+                             ['org-openroadm-common-network:opposite-link'])
+            # Find the opposite link
+            response_oppLink = test_utils.get_ordm_topo_request("ietf-network-topology:link/"+oppLink_id)
             self.assertEqual(response_oppLink.status_code, requests.codes.ok)
             res_oppLink = response_oppLink.json()
-            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]['org-openroadm-common-network:opposite-link'],link_id)
-            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]['source']['source-node'],link_dest)
-            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]['destination']['dest-node'],link_src)
-            oppLink_type=res_oppLink['ietf-network-topology:link'][0]['org-openroadm-common-network:link-type']
-            if link_type=='ADD-LINK':
+            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]
+                             ['org-openroadm-common-network:opposite-link'], link_id)
+            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]['source']['source-node'], link_dest)
+            self.assertEqual(res_oppLink['ietf-network-topology:link'][0]['destination']['dest-node'], link_src)
+            oppLink_type = res_oppLink['ietf-network-topology:link'][0]['org-openroadm-common-network:link-type']
+            if link_type == 'ADD-LINK':
                 self.assertEqual(oppLink_type, 'DROP-LINK')
-            elif link_type=='DROP-LINK':
+            elif link_type == 'DROP-LINK':
                 self.assertEqual(oppLink_type, 'ADD-LINK')
-            elif link_type=='EXPRESS-LINK':
+            elif link_type == 'EXPRESS-LINK':
                 self.assertEqual(oppLink_type, 'EXPRESS-LINK')
-            elif link_type=='ROADM-TO-ROADM':
+            elif link_type == 'ROADM-TO-ROADM':
                 self.assertEqual(oppLink_type, 'ROADM-TO-ROADM')
-            elif link_type=='XPONDER-INPUT':
+            elif link_type == 'XPONDER-INPUT':
                 self.assertEqual(oppLink_type, 'XPONDER-OUTPUT')
-            elif link_type=='XPONDER-OUTPUT':
+            elif link_type == 'XPONDER-OUTPUT':
                 self.assertEqual(oppLink_type, 'XPONDER-INPUT')
 
     def test_29_getLinkOmsAttributesOpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
         R2RLink = ['ROADM-A1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG1-DEG1-TTP-TXRX',
-                       'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX',
-                       'ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX',
-                       'ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX',
-                       'ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX',
-                       'ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX']
-        for i in range(0,nbLink):
-            nodeType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
-            link_id=res['network'][0]['ietf-network-topology:link'][i]['link-id']
-            if(link_id in R2RLink):
+                   'ROADM-C1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG2-DEG2-TTP-TXRX',
+                   'ROADM-A1-DEG1-DEG1-TTP-TXRXtoROADM-B1-DEG1-DEG1-TTP-TXRX',
+                   'ROADM-C1-DEG2-DEG2-TTP-TXRXtoROADM-B1-DEG2-DEG2-TTP-TXRX',
+                   'ROADM-B1-DEG1-DEG1-TTP-TXRXtoROADM-A1-DEG1-DEG1-TTP-TXRX',
+                   'ROADM-B1-DEG2-DEG2-TTP-TXRXtoROADM-C1-DEG2-DEG2-TTP-TXRX']
+        for i in range(0, nbLink):
+            link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            if link_id in R2RLink:
                 find = False
                 spanLoss = res['network'][0]['ietf-network-topology:link'][i][
                     'org-openroadm-network-topology:OMS-attributes']['span']["engineered-spanloss"]
                 length = res['network'][0]['ietf-network-topology:link'][i][
                     'org-openroadm-network-topology:OMS-attributes']['span']['link-concatenation'][0]['SRLG-length']
-                if((spanLoss!=None)&(length!=None)):
+                if (spanLoss is not None) & (length is not None):
                     find = True
                 self.assertTrue(find)
                 R2RLink.remove(link_id)
-        self.assertEqual(len(R2RLink),0)
+        self.assertEqual(len(R2RLink), 0)
 
     def test_30_disconnect_ROADMB(self):
-        #Delete in the topology-netconf
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-B1"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.ok)
-        #Delete in the clli-network
-        url = ("{}/config/ietf-network:networks/network/clli-network/node/NodeB"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
+        # Delete in the topology-netconf
+        response = test_utils.unmount_device("ROADM-B1")
+        # Delete in the clli-network
+        response = test_utils.del_node_request("NodeB")
         self.assertEqual(response.status_code, requests.codes.ok)
 
     def test_31_disconnect_ROADMC(self):
-        #Delete in the topology-netconf
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-C1"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.ok)
-        #Delete in the clli-network
-        url = ("{}/config/ietf-network:networks/network/clli-network/node/NodeC"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
+        # Delete in the topology-netconf
+        response = test_utils.unmount_device("ROADM-C1")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
+        # Delete in the clli-network
+        response = test_utils.del_node_request("NodeC")
         self.assertEqual(response.status_code, requests.codes.ok)
 
 #    def test_24_check_roadm2roadm_links_deletion(self):
-#        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-#               .format(self.restconf_baseurl))
-#        headers = {'content-type': 'application/json'}
-#        response = requests.request(
-#             "GET", url, headers=headers, auth=('admin', 'admin'))
+#        response = test_utils.get_ordm_topo_request("")
 #        self.assertEqual(response.status_code, requests.codes.ok)
 #        res = response.json()
 #        #Write the response in the log
@@ -1070,9 +813,12 @@ class TransportPCEtesting(unittest.TestCase):
 #        #Tests related to links
 #        nbLink=len(res['network'][0]['ietf-network-topology:link'])
 #        self.assertEqual(nbLink,8)
-#        expressLink=['ROADMA-DEG2-DEG2-CTP-TXRXtoROADMA-DEG1-DEG1-CTP-TXRX','ROADMA-DEG1-DEG1-CTP-TXRXtoROADMA-DEG2-DEG2-CTP-TXRX']
-#        addLink=['ROADMA-SRG1-SRG1-CP-TXRXtoROADMA-DEG2-DEG2-CTP-TXRX','ROADMA-SRG1-SRG1-CP-TXRXtoROADMA-DEG1-DEG1-CTP-TXRX',]
-#        dropLink=['ROADMA-DEG1-DEG1-CTP-TXRXtoROADMA-SRG1-SRG1-CP-TXRX','ROADMA-DEG2-DEG2-CTP-TXRXtoROADMA-SRG1-SRG1-CP-TXRX']
+#        expressLink=['ROADMA-DEG2-DEG2-CTP-TXRXtoROADMA-DEG1-DEG1-CTP-TXRX',
+#                     'ROADMA-DEG1-DEG1-CTP-TXRXtoROADMA-DEG2-DEG2-CTP-TXRX']
+#        addLink=['ROADMA-SRG1-SRG1-CP-TXRXtoROADMA-DEG2-DEG2-CTP-TXRX',
+#                 'ROADMA-SRG1-SRG1-CP-TXRXtoROADMA-DEG1-DEG1-CTP-TXRX',]
+#        dropLink=['ROADMA-DEG1-DEG1-CTP-TXRXtoROADMA-SRG1-SRG1-CP-TXRX',
+#                  'ROADMA-DEG2-DEG2-CTP-TXRXtoROADMA-SRG1-SRG1-CP-TXRX']
 #        XPDR_IN=['ROADMA-SRG1-SRG1-PP1-TXRXtoXPDRA-XPDR1-XPDR1-NETWORK1']
 #        XPDR_OUT=['XPDRA-XPDR1-XPDR1-NETWORK1toROADMA-SRG1-SRG1-PP1-TXRX']
 #        for i in range(0,nbLink):
@@ -1107,50 +853,55 @@ class TransportPCEtesting(unittest.TestCase):
 #        self.assertEqual(len(XPDR_OUT),0)
 #
 #        for i in range(0,nbLink):
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type'],'ROADM-TO-ROADM')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-SRG1-SRG1-CP-TXRXtoROADMC-DEG1-DEG1-CTP-TXRX')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-DEG1-DEG1-CTP-TXRXtoROADMC-SRG1-SRG1-CP-TXRX')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-SRG1-SRG1-CP-TXRXtoROADMC-DEG2-DEG1-CTP-TXRX')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-DEG1-DEG2-CTP-TXRXtoROADMC-SRG1-SRG1-CP-TXRX')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-DEG1-DEG1-CTP-TXRXtoROADMC-DEG2-DEG2-CTP-TXRX')
-#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],'ROADMC-DEG2-DEG2-CTP-TXRXtoROADMC-DEG1-DEG1-CTP-TXRX')
+#            self.assertNotEqual((res['network'][0]['ietf-network-topology:link'][i]
+#                                    ['org-openroadm-common-network:link-type']),'ROADM-TO-ROADM')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-SRG1-SRG1-CP-TXRXtoROADMC-DEG1-DEG1-CTP-TXRX')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-DEG1-DEG1-CTP-TXRXtoROADMC-SRG1-SRG1-CP-TXRX')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-SRG1-SRG1-CP-TXRXtoROADMC-DEG2-DEG1-CTP-TXRX')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-DEG1-DEG2-CTP-TXRXtoROADMC-SRG1-SRG1-CP-TXRX')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-DEG1-DEG1-CTP-TXRXtoROADMC-DEG2-DEG2-CTP-TXRX')
+#            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['link-id'],
+#                                'ROADMC-DEG2-DEG2-CTP-TXRXtoROADMC-DEG1-DEG1-CTP-TXRX')
 
     def test_32_getNodes_OpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         res = response.json()
-        #Tests related to nodes
+        # Tests related to nodes
         self.assertEqual(response.status_code, requests.codes.ok)
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,5)
-        listNode=['XPDR-A1-XPDR1','ROADM-A1-SRG1', 'ROADM-A1-SRG3','ROADM-A1-DEG1','ROADM-A1-DEG2']
-        for i in range(0,nbNode):
-            nodeType=res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
-            nodeId=res['network'][0]['node'][i]['node-id']
-            #Tests related to XPDRA nodes
-            if(nodeId=='XPDR-A1-XPDR1'):
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 5)
+        listNode = ['XPDR-A1-XPDR1', 'ROADM-A1-SRG1', 'ROADM-A1-SRG3', 'ROADM-A1-DEG1', 'ROADM-A1-DEG2']
+        for i in range(0, nbNode):
+            nodeType = res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
+            nodeId = res['network'][0]['node'][i]['node-id']
+            # Tests related to XPDRA nodes
+            if nodeId == 'XPDR-A1-XPDR1':
                 nbTp = len(res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 for j in range(0, nbTp):
                     tpid = res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]['tp-id']
-                    if (tpid == 'XPDR1-CLIENT1'):
-                        self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
-                                         ['org-openroadm-common-network:tp-type'], 'XPONDER-CLIENT')
-                    if (tpid == 'XPDR1-NETWORK1'):
-                        self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
-                                         ['org-openroadm-common-network:tp-type'], 'XPONDER-NETWORK')
-                        self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
-                                         ['org-openroadm-network-topology:xpdr-network-attributes']['tail-equipment-id'],
+                    if tpid == 'XPDR1-CLIENT1':
+                        self.assertEqual((res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                             ['org-openroadm-common-network:tp-type']), 'XPONDER-CLIENT')
+                    if tpid == 'XPDR1-NETWORK1':
+                        self.assertEqual((res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                          ['org-openroadm-common-network:tp-type']), 'XPONDER-NETWORK')
+                        self.assertEqual((res['network'][0]['node'][i]['ietf-network-topology:termination-point'][j]
+                                          ['org-openroadm-network-topology:xpdr-network-attributes']
+                                          ['tail-equipment-id']),
                                          'ROADM-A1-SRG1--SRG1-PP1-TXRX')
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDR-A1'},
-                    res['network'][0]['node'][i]['supporting-node'])
+                              res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-SRG1'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            elif nodeId == 'ROADM-A1-SRG1':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
@@ -1158,10 +909,10 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-SRG3'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            elif nodeId == 'ROADM-A1-SRG3':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
@@ -1169,19 +920,19 @@ class TransportPCEtesting(unittest.TestCase):
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG1'):
-                #Test related to DEG1
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG1':
+                # Test related to DEG1
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
-                    res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
-                    res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
-                    res['network'][0]['node'][i]['supporting-node'])
+                              res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG2'):
-                #Test related to DEG2
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG2':
+                # Test related to DEG2
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -1191,122 +942,96 @@ class TransportPCEtesting(unittest.TestCase):
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(listNode),0)
-        #Test related to SRG1 of ROADMC
-        for i in range(0,nbNode):
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'ROADM-C1-SRG1')
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'ROADM-C1-DEG1')
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'ROADM-C1-DEG2')
+        self.assertEqual(len(listNode), 0)
+        # Test related to SRG1 of ROADMC
+        for i in range(0, nbNode):
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADM-C1-SRG1')
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADM-C1-DEG1')
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADM-C1-DEG2')
 
     def test_33_getOpenRoadmNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,2)
-        for i in range(0,nbNode-1):
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'ROADM-C1')
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'ROADM-B1')
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 2)
+        for i in range(0, nbNode-1):
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADM-C1')
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADM-B1')
 
     def test_34_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,1)
-        for i in range(0,nbNode-1):
-            self.assertNotEqual(res['network'][0]['node'][1]['org-openroadm-clli-network:clli'],'NodeC')
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 1)
+        for i in range(0, nbNode-1):
+            self.assertNotEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeC')
 
     def test_35_disconnect_XPDRA(self):
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/XPDR-A1"
-              .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "DELETE", url, data=json.dumps(data), headers=headers,
-            auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.ok)
+        response = test_utils.unmount_device("XPDR-A1")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
 
     def test_36_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,1)
-        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'],'NodeA')
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 1)
+        self.assertEqual(res['network'][0]['node'][0]['org-openroadm-clli-network:clli'], 'NodeA')
 
     def test_37_getOpenRoadmNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,1)
-        for i in range(0,nbNode):
-            self.assertNotEqual(res['network'][0]['node'][i]['node-id'],'XPDR-A1')
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 1)
+        for i in range(0, nbNode):
+            self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'XPDR-A1')
 
     def test_38_getNodes_OpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        # pylint: disable=redundant-unittest-assert
+        response = test_utils.get_ordm_topo_request("")
         res = response.json()
-        #Tests related to nodes
+        # Tests related to nodes
         self.assertEqual(response.status_code, requests.codes.ok)
-        nbNode=len(res['network'][0]['node'])
-        self.assertEqual(nbNode,4)
-        listNode=['ROADM-A1-SRG1','ROADM-A1-SRG3','ROADM-A1-DEG1','ROADM-A1-DEG2']
-        for i in range(0,nbNode):
+        nbNode = len(res['network'][0]['node'])
+        self.assertEqual(nbNode, 4)
+        listNode = ['ROADM-A1-SRG1', 'ROADM-A1-SRG3', 'ROADM-A1-DEG1', 'ROADM-A1-DEG2']
+        for i in range(0, nbNode):
             self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADM-A1'},
                           res['network'][0]['node'][i]['supporting-node'])
-            nodeType=res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
-            nodeId=res['network'][0]['node'][i]['node-id']
-            if(nodeId=='ROADM-A1-SRG1'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            nodeType = res['network'][0]['node'][i]['org-openroadm-common-network:node-type']
+            nodeId = res['network'][0]['node'][i]['node-id']
+            if nodeId == 'ROADM-A1-SRG1':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-SRG3'):
-                #Test related to SRG1
-                self.assertEqual(nodeType,'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']),5)
+            elif nodeId == 'ROADM-A1-SRG3':
+                # Test related to SRG1
+                self.assertEqual(nodeType, 'SRG')
+                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 5)
                 self.assertIn({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG1'):
-                #Test related to DEG1
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG1':
+                # Test related to DEG1
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 listNode.remove(nodeId)
-            elif(nodeId=='ROADM-A1-DEG2'):
-                #Test related to DEG2
-                self.assertEqual(nodeType,'DEGREE')
+            elif nodeId == 'ROADM-A1-DEG2':
+                # Test related to DEG2
+                self.assertEqual(nodeType, 'DEGREE')
                 self.assertIn({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP'},
                               res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP'},
@@ -1314,123 +1039,91 @@ class TransportPCEtesting(unittest.TestCase):
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(listNode),0)
+        self.assertEqual(len(listNode), 0)
 
     def test_39_disconnect_ROADM_XPDRA_link(self):
-        #Link-1
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX"
-                .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
+        # Link-1
+        response = test_utils.del_link_request("XPDR-A1-XPDR1-XPDR1-NETWORK1toROADM-A1-SRG1-SRG1-PP1-TXRX")
         self.assertEqual(response.status_code, requests.codes.ok)
-        #Link-2
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1"
-                .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
+        # Link-2
+        response = test_utils.del_link_request("ROADM-A1-SRG1-SRG1-PP1-TXRXtoXPDR-A1-XPDR1-XPDR1-NETWORK1")
         self.assertEqual(response.status_code, requests.codes.ok)
 
     def test_40_getLinks_OpenRoadmTopology(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
         self.assertEqual(nbLink, 16)
-        expressLink=['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX','ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
-        addLink=['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
-                 'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX','ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
-        dropLink=['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
-                  'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX','ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
+        expressLink = ['ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                       'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX']
+        addLink = ['ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG1-SRG1-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG2-DEG2-CTP-TXRX',
+                   'ROADM-A1-SRG3-SRG3-CP-TXRXtoROADM-A1-DEG1-DEG1-CTP-TXRX']
+        dropLink = ['ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG1-SRG1-CP-TXRX',
+                    'ROADM-A1-DEG1-DEG1-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX',
+                    'ROADM-A1-DEG2-DEG2-CTP-TXRXtoROADM-A1-SRG3-SRG3-CP-TXRX']
         roadmtoroadmLink = 0
-        for i in range(0,nbLink):
-            if (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='EXPRESS-LINK'):
+        for i in range(0, nbLink):
+            if (res['network'][0]['ietf-network-topology:link'][i]
+                   ['org-openroadm-common-network:link-type'] == 'EXPRESS-LINK'):
                 link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                find= link_id in expressLink
+                find = link_id in expressLink
                 self.assertEqual(find, True)
                 expressLink.remove(link_id)
-            elif (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='ADD-LINK'):
+            elif (res['network'][0]['ietf-network-topology:link'][i]
+                     ['org-openroadm-common-network:link-type'] == 'ADD-LINK'):
                 link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                find= link_id in addLink
+                find = link_id in addLink
                 self.assertEqual(find, True)
                 addLink.remove(link_id)
-            elif (res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']=='DROP-LINK'):
+            elif (res['network'][0]['ietf-network-topology:link'][i]
+                     ['org-openroadm-common-network:link-type'] == 'DROP-LINK'):
                 link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                find= link_id in dropLink
+                find = link_id in dropLink
                 self.assertEqual(find, True)
                 dropLink.remove(link_id)
             else:
                 roadmtoroadmLink += 1
-        self.assertEqual(len(expressLink),0)
-        self.assertEqual(len(addLink),0)
-        self.assertEqual(len(dropLink),0)
+        self.assertEqual(len(expressLink), 0)
+        self.assertEqual(len(addLink), 0)
+        self.assertEqual(len(dropLink), 0)
         self.assertEqual(roadmtoroadmLink, 6)
-        for i in range(0,nbLink):
-            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type'],'XPONDER-OUTPUT')
-            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type'],'XPONDER-INPUT')
+        for i in range(0, nbLink):
+            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]
+                                ['org-openroadm-common-network:link-type'], 'XPONDER-OUTPUT')
+            self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]
+                                ['org-openroadm-common-network:link-type'], 'XPONDER-INPUT')
 
     def test_41_disconnect_ROADMA(self):
-        url = ("{}/config/network-topology:"
-                "network-topology/topology/topology-netconf/node/ROADM-A1"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
-        self.assertEqual(response.status_code, requests.codes.ok)
-        #Delete in the clli-network
-        url = ("{}/config/ietf-network:networks/network/clli-network/node/NodeA"
-               .format(self.restconf_baseurl))
-        data = {}
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-             "DELETE", url, data=json.dumps(data), headers=headers,
-             auth=('admin', 'admin'))
+        response = test_utils.unmount_device("ROADM-A1")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
+        # Delete in the clli-network
+        response = test_utils.del_node_request("NodeA")
         self.assertEqual(response.status_code, requests.codes.ok)
 
     def test_42_getClliNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/clli-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_clli_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
         self.assertNotIn('node', res['network'][0])
 
     def test_43_getOpenRoadmNetwork(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-network"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_net_request()
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
         self.assertNotIn('node', res['network'][0])
 
     def test_44_check_roadm2roadm_link_persistence(self):
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology"
-              .format(self.restconf_baseurl))
-        headers = {'content-type': 'application/json'}
-        response = requests.request(
-            "GET", url, headers=headers, auth=('admin', 'admin'))
+        response = test_utils.get_ordm_topo_request("")
         self.assertEqual(response.status_code, requests.codes.ok)
         res = response.json()
-        nbLink=len(res['network'][0]['ietf-network-topology:link'])
+        nbLink = len(res['network'][0]['ietf-network-topology:link'])
         self.assertNotIn('node', res['network'][0])
         self.assertEqual(nbLink, 6)
 
+
 if __name__ == "__main__":
     unittest.main(verbosity=2)