Change way to start simulators
[transportpce.git] / tests / transportpce_tests / 1.2.1 / test_topology.py
index bade42ccf1bbe56d2663a21d7d2cdb010011cf74..6140f0eca117ee2bd4c9f4ff03f3e8c815a6eafe 100644 (file)
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
-import json
-import signal
+# pylint: disable=no-member
+# pylint: disable=too-many-public-methods
+# pylint: disable=too-many-lines
+
 import time
 import unittest
 import requests
-import psutil
+import sys
+sys.path.append('transportpce_tests/common/')
 import test_utils
 
 
 class TransportPCETopologyTesting(unittest.TestCase):
 
-    sim_process1 = None
-    sim_process2 = None
-    sim_process3 = None
-    sim_process4 = None
-    odl_process = None
-    restconf_baseurl = "http://localhost:8181/restconf"
-
-# START_IGNORE_XTESTING
+    processes = None
+    NODE_VERSION = '1.2.1'
+    CHECK_DICT1 = {
+        'ROADMA01-SRG1': {
+            'node_type': 'SRG',
+            'checks_tp': [({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        },
+        'ROADMA01-SRG3': {
+            'node_type': 'SRG',
+            'checks_tp': [({'tp-id': 'SRG3-CP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'SRG3-PP1-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        },
+        'ROADMA01-DEG1': {
+            'node_type': 'DEGREE',
+            'checks_tp': [({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        },
+        'ROADMA01-DEG2': {
+            'node_type': 'DEGREE',
+            'checks_tp': [({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        }
+    }
+    CHECK_DICT2 = {
+        'ROADMC01-SRG1': {
+            'node_type': 'SRG',
+            'checks_tp': [({'tp-id': 'SRG1-CP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-CP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'SRG1-PP1-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'SRG-TXRX-PP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        },
+        'ROADMC01-DEG1': {
+            'node_type': 'DEGREE',
+            'checks_tp': [({'tp-id': 'DEG1-TTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'DEG1-CTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        },
+        'ROADMC01-DEG2': {
+            'node_type': 'DEGREE',
+            'checks_tp': [({'tp-id': 'DEG2-TTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-TTP',
+                            'org-openroadm-common-network:operational-state': 'inService'}),
+                          ({'tp-id': 'DEG2-CTP-TXRX', 'org-openroadm-common-network:administrative-state': 'inService',
+                            'org-openroadm-common-network:tp-type': 'DEGREE-TXRX-CTP',
+                            'org-openroadm-common-network:operational-state': 'inService'})]
+        }
+    }
 
     @classmethod
     def setUpClass(cls):
-        cls.sim_process1 = test_utils.start_sim('xpdra')
-        time.sleep(20)
-
-        cls.sim_process2 = test_utils.start_sim('roadma')
-        time.sleep(20)
-
-        cls.sim_process3 = test_utils.start_sim('roadmb')
-        time.sleep(20)
-
-        cls.sim_process4 = test_utils.start_sim('roadmc')
-        time.sleep(20)
-        print("all sims started")
-
-        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', cls.NODE_VERSION), ('roadma', cls.NODE_VERSION),
+                                               ('roadmb', cls.NODE_VERSION), ('roadmc', cls.NODE_VERSION)])
 
     @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.sim_process1.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.sim_process1.send_signal(signal.SIGINT)
-        cls.sim_process1.wait()
-        for child in psutil.Process(cls.sim_process2.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.sim_process2.send_signal(signal.SIGINT)
-        cls.sim_process2.wait()
-
-        for child in psutil.Process(cls.sim_process3.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.sim_process3.send_signal(signal.SIGINT)
-        cls.sim_process3.wait()
-
-        for child in psutil.Process(cls.sim_process4.pid).children():
-            child.send_signal(signal.SIGINT)
-            child.wait()
-        cls.sim_process4.send_signal(signal.SIGINT)
-        cls.sim_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_ROADMA(self):
-        # Config ROADMA
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/ROADMA01"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-            "node-id": "ROADMA01",
-            "netconf-node-topology:username": "admin",
-            "netconf-node-topology:password": "admin",
-            "netconf-node-topology:host": "127.0.0.1",
-            "netconf-node-topology:port": test_utils.sims['roadma']['port'],
-            "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("ROADMA01", ('roadma', self.NODE_VERSION))
+        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()
         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'], 'ROADMA01')
@@ -129,47 +131,39 @@ class TransportPCETopologyTesting(unittest.TestCase):
         self.assertEqual(res['network'][0]['node'][0]['org-openroadm-network:model'], '2')
 
     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 = ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX']
-        addLink = ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX']
-        dropLink = ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
-                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX']
+        check_list = {'EXPRESS-LINK': ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX'],
+                      'ADD-LINK': ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX'],
+                      'DROP-LINK': ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-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
+            linkType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            if linkType in check_list:
+                find = linkId in check_list[linkType]
                 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
-                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
-                self.assertEqual(find, True)
-                dropLink.remove(linkId)
+                (check_list[linkType]).remove(linkId)
             else:
                 self.assertFalse(True)
-        self.assertEqual(len(expressLink), 0)
-        self.assertEqual(len(addLink), 0)
-        self.assertEqual(len(dropLink), 0)
+        for link_type in check_list:
+            self.assertEqual(len(check_list[link_type]), 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
         self.assertEqual(response.status_code, requests.codes.ok)
@@ -181,51 +175,12 @@ class TransportPCETopologyTesting(unittest.TestCase):
                           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 == 'ROADMA01-SRG1':
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'clli-network', 'node-ref': 'NodeA'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif nodeId == 'ROADMA01-SRG3':
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'clli-network', 'node-ref': 'NodeA'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif nodeId == 'ROADMA01-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)
-                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-            elif nodeId == 'ROADMA01-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'},
-                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+            if nodeId in self.CHECK_DICT1:
+                self.assertEqual(nodeType, self.CHECK_DICT1[nodeId]['node_type'])
+                if self.CHECK_DICT1[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT1[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
                               res['network'][0]['node'][i]['supporting-node'])
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
@@ -233,43 +188,23 @@ class TransportPCETopologyTesting(unittest.TestCase):
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
+
         self.assertEqual(len(listNode), 0)
 
     def test_06_connect_XPDRA(self):
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/XPDRA01"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-            "node-id": "XPDRA01",
-            "netconf-node-topology:username": "admin",
-            "netconf-node-topology:password": "admin",
-            "netconf-node-topology:host": "127.0.0.1",
-            "netconf-node-topology:port": test_utils.sims['xpdra']['port'],
-            "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("XPDRA01", ('xpdra', self.NODE_VERSION))
+        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'))
+        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'))
+        # 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'])
@@ -278,21 +213,18 @@ class TransportPCETopologyTesting(unittest.TestCase):
             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 == 'XPDRA01'):
+            if nodeId == 'XPDRA01':
                 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'], '1')
-            elif(nodeId == 'ROADMA01'):
+            elif nodeId == 'ROADMA01':
                 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'], '2')
             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'))
+        # 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)
@@ -303,7 +235,7 @@ class TransportPCETopologyTesting(unittest.TestCase):
             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 == 'XPDRA01-XPDR1'):
+            if nodeId == 'XPDRA01-XPDR1':
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDRA01'},
                               res['network'][0]['node'][i]['supporting-node'])
                 self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
@@ -313,60 +245,31 @@ class TransportPCETopologyTesting(unittest.TestCase):
                 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']
+                    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'):
+                    if tpType == 'XPONDER-CLIENT':
                         client += 1
-                    elif (tpType == 'XPONDER-NETWORK'):
+                    elif tpType == 'XPONDER-NETWORK':
                         network += 1
-                    if (tpId == 'XPDR1-NETWORK2'):
+                    if tpId == 'XPDR1-NETWORK2':
                         self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point']
                                          [j]['transportpce-topology:associated-connection-map-port'], 'XPDR1-CLIENT3')
-                    if (tpId == 'XPDR1-CLIENT3'):
+                    if tpId == 'XPDR1-CLIENT3':
                         self.assertEqual(res['network'][0]['node'][i]['ietf-network-topology:termination-point']
                                          [j]['transportpce-topology:associated-connection-map-port'], 'XPDR1-NETWORK2')
                 self.assertTrue(client == 4)
                 self.assertTrue(network == 2)
                 listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-SRG1'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-SRG3'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-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'])
-                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
+            # Tests related to ROADMA nodes
+            elif nodeId in self.CHECK_DICT1:
+                self.assertEqual(nodeType, self.CHECK_DICT1[nodeId]['node_type'])
+                if self.CHECK_DICT1[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT1[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
                               res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-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'},
-                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
@@ -377,122 +280,55 @@ class TransportPCETopologyTesting(unittest.TestCase):
     # 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": "XPDRA01",
-                "networkutils:xpdr-num": "1",
-                "networkutils:network-num": "1",
-                "networkutils:rdm-node": "ROADMA01",
-                "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'))
+        response = test_utils.connect_xpdr_to_rdm_request("XPDRA01", "1", "1",
+                                                          "ROADMA01", "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": "XPDRA01",
-                "networkutils:xpdr-num": "1",
-                "networkutils:network-num": "1",
-                "networkutils:rdm-node": "ROADMA01",
-                "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'))
+        response = test_utils.connect_rdm_to_xpdr_request("XPDRA01", "1", "1",
+                                                          "ROADMA01", "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 = ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX']
-        addLink = ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX']
-        dropLink = ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
-                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX']
-        XPDR_IN = ['ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-XPDR1-XPDR1-NETWORK1']
-        XPDR_OUT = ['XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-SRG1-SRG1-PP1-TXRX']
+        check_list = {'EXPRESS-LINK': ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX'],
+                      'ADD-LINK': ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX'],
+                      'DROP-LINK': ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX'],
+                      'XPONDER-INPUT': ['ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-XPDR1-XPDR1-NETWORK1'],
+                      'XPONDER-OUTPUT': ['XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-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
+            linkType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            if linkType in check_list:
+                find = linkId in check_list[linkType]
                 self.assertEqual(find, True)
-                addLink.remove(linkId)
-            elif(nodeType == 'DROP-LINK'):
-                find = linkId in dropLink
-                self.assertEqual(find, True)
-                dropLink.remove(linkId)
-            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
-                self.assertEqual(find, True)
-                XPDR_OUT.remove(linkId)
+                (check_list[linkType]).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)
+        for link_type in check_list:
+            self.assertEqual(len(check_list[link_type]), 0)
 
     def test_13_connect_ROADMC(self):
-        # Config ROADMC
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/ROADMC01"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-            "node-id": "ROADMC01",
-            "netconf-node-topology:username": "admin",
-            "netconf-node-topology:password": "admin",
-            "netconf-node-topology:host": "127.0.0.1",
-            "netconf-node-topology:port": test_utils.sims['roadmc']['port'],
-            "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("ROADMC01", ('roadmc', self.NODE_VERSION))
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_14_omsAttributes_ROADMA_ROADMC(self):
         # Config ROADMA01-ROADMC01 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
             "auto-spanloss": "true",
             "engineered-spanloss": 12.2,
@@ -501,18 +337,11 @@ class TransportPCETopologyTesting(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("ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_15_omsAttributes_ROADMC_ROADMA(self):
         # Config ROADMC01-ROADMA oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
             "auto-spanloss": "true",
             "engineered-spanloss": 12.2,
@@ -521,132 +350,95 @@ class TransportPCETopologyTesting(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("ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-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'))
+        # pylint: disable=redundant-unittest-assert
+        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):
             nodeId = res['network'][0]['node'][i]['node-id']
-            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 in listNode:
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], nodeId)
+                listNode.remove(nodeId)
             else:
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeC')
-            listNode.remove(nodeId)
-
+                self.assertFalse(True)
         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 = ['XPDRA01', 'ROADMA01', 'ROADMC01']
+        CHECK_LIST = {'XPDRA01': {'node-ref': 'NodeA', 'node-type': 'XPONDER', 'model': '1'},
+                      'ROADMA01': {'node-ref': 'NodeA', 'node-type': 'ROADM', 'model': '2'},
+                      'ROADMC01': {'node-ref': 'NodeC', 'node-type': 'ROADM', 'model': '2'}
+                      }
         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 == 'XPDRA01'):
-                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'], '1')
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01'):
-                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'], '2')
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMC01'):
-                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'], '2')
+            if nodeId in CHECK_LIST:
+                self.assertEqual(res['network'][0]['node'][i]['supporting-node'][0]['node-ref'],
+                                 CHECK_LIST[nodeId]['node-ref'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],
+                                 CHECK_LIST[nodeId]['node-type'])
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-network:model'],
+                                 CHECK_LIST[nodeId]['model'])
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
         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 = ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX', 'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
-                       'ROADMC01-DEG2-DEG2-CTP-TXRXtoROADMC01-DEG1-DEG1-CTP-TXRX', 'ROADMC01-DEG1-DEG1-CTP-TXRXtoROADMC01-DEG2-DEG2-CTP-TXRX']
-        addLink = ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                   'ROADMC01-SRG1-SRG1-CP-TXRXtoROADMC01-DEG2-DEG2-CTP-TXRX', 'ROADMC01-SRG1-SRG1-CP-TXRXtoROADMC01-DEG1-DEG1-CTP-TXRX']
-        dropLink = ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
-                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
-                    'ROADMC01-DEG1-DEG1-CTP-TXRXtoROADMC01-SRG1-SRG1-CP-TXRX', 'ROADMC01-DEG2-DEG2-CTP-TXRXtoROADMC01-SRG1-SRG1-CP-TXRX']
-        R2RLink = ['ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX',
-                   'ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-TTP-TXRX']
-        XPDR_IN = ['ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-XPDR1-XPDR1-NETWORK1']
-        XPDR_OUT = ['XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-SRG1-SRG1-PP1-TXRX']
+        check_list = {'EXPRESS-LINK': ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                       'ROADMC01-DEG2-DEG2-CTP-TXRXtoROADMC01-DEG1-DEG1-CTP-TXRX',
+                                       'ROADMC01-DEG1-DEG1-CTP-TXRXtoROADMC01-DEG2-DEG2-CTP-TXRX'],
+                      'ADD-LINK': ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                   'ROADMC01-SRG1-SRG1-CP-TXRXtoROADMC01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMC01-SRG1-SRG1-CP-TXRXtoROADMC01-DEG1-DEG1-CTP-TXRX'],
+                      'DROP-LINK': ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
+                                    'ROADMC01-DEG1-DEG1-CTP-TXRXtoROADMC01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMC01-DEG2-DEG2-CTP-TXRXtoROADMC01-SRG1-SRG1-CP-TXRX'],
+                      'ROADM-TO-ROADM': ['ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX',
+                                         'ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-TTP-TXRX'],
+                      'XPONDER-INPUT': ['ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-XPDR1-XPDR1-NETWORK1'],
+                      'XPONDER-OUTPUT': ['XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-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
-                self.assertEqual(find, True)
-                addLink.remove(linkId)
-            elif(nodeType == 'DROP-LINK'):
-                find = linkId in dropLink
-                self.assertEqual(find, True)
-                dropLink.remove(linkId)
-            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
-                self.assertEqual(find, True)
-                XPDR_IN.remove(linkId)
-            elif(nodeType == 'XPONDER-OUTPUT'):
-                find = linkId in XPDR_OUT
+            linkType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            if linkType in check_list:
+                find = linkId in check_list[linkType]
                 self.assertEqual(find, True)
-                XPDR_OUT.remove(linkId)
+                (check_list[linkType]).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)
+        for link_type in check_list:
+            self.assertEqual(len(check_list[link_type]), 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
@@ -655,26 +447,23 @@ class TransportPCETopologyTesting(unittest.TestCase):
         R2RLink = ['ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX',
                    'ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-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):
+            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)):
+                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 is not None) & (length is not None):
                     find = True
                 self.assertTrue(find)
                 R2RLink.remove(link_id)
         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'))
+        # 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)
@@ -683,11 +472,11 @@ class TransportPCETopologyTesting(unittest.TestCase):
         listNode = ['XPDRA01-XPDR1',
                     'ROADMA01-SRG1', 'ROADMA01-SRG3', 'ROADMA01-DEG1', 'ROADMA01-DEG2',
                     'ROADMC01-SRG1', 'ROADMC01-DEG1', 'ROADMC01-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 == 'XPDRA01-XPDR1'):
+            # Tests related to XPDRA nodes
+            if nodeId == 'XPDRA01-XPDR1':
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDRA01'},
                               res['network'][0]['node'][i]['supporting-node'])
                 self.assertEqual(nodeType, 'XPONDER')
@@ -696,116 +485,53 @@ class TransportPCETopologyTesting(unittest.TestCase):
                 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'):
+                    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'):
+                    elif tpType == 'XPONDER-NETWORK':
                         network += 1
                 self.assertTrue(client == 4)
                 self.assertTrue(network == 2)
                 listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-SRG1'):
-                # Test related to SRG1
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              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 == 'ROADMA01-SRG3'):
-                # Test related to SRG1
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              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 == 'ROADMA01-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': 'ROADMA01'},
+            # Tests related to ROADMA nodes
+            elif nodeId in self.CHECK_DICT1:
+                self.assertEqual(nodeType, self.CHECK_DICT1[nodeId]['node_type'])
+                if self.CHECK_DICT1[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT1[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
                               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 == 'ROADMA01-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': 'ROADMA01'},
                               res['network'][0]['node'][i]['supporting-node'])
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],
+                                 self.CHECK_DICT1[nodeId]['node_type'])
                 listNode.remove(nodeId)
-            elif(nodeId == 'ROADMC01-SRG1'):
-                # Test related to SRG1
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMC01'},
+            # Tests related to ROADMC nodes
+            elif nodeId in self.CHECK_DICT2:
+                self.assertEqual(nodeType, self.CHECK_DICT2[nodeId]['node_type'])
+                if self.CHECK_DICT2[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT2[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeC'},
                               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 == 'ROADMC01-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': 'ROADMC01'},
                               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 == 'ROADMC01-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': 'ROADMC01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'], 'DEGREE')
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-common-network:node-type'],
+                                 self.CHECK_DICT2[nodeId]['node_type'])
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
         self.assertEqual(len(listNode), 0)
 
     def test_21_connect_ROADMB(self):
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/ROADMB01"
-               .format(self.restconf_baseurl))
-        data = {"node": [{
-            "node-id": "ROADMB01",
-            "netconf-node-topology:username": "admin",
-            "netconf-node-topology:password": "admin",
-            "netconf-node-topology:host": "127.0.0.1",
-            "netconf-node-topology:port": test_utils.sims['roadmb']['port'],
-            "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("ROADMB01", ('roadmb', self.NODE_VERSION))
+        self.assertEqual(response.status_code, requests.codes.created, test_utils.CODE_SHOULD_BE_201)
 
     def test_22_omsAttributes_ROADMA_ROADMB(self):
         # Config ROADMA01-ROADMB01 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMA01-DEG2-DEG2-TTP-TXRXtoROADMB01-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -814,18 +540,11 @@ class TransportPCETopologyTesting(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("ROADMA01-DEG2-DEG2-TTP-TXRXtoROADMB01-DEG1-DEG1-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_23_omsAttributes_ROADMB_ROADMA(self):
         # Config ROADMB01-ROADMA01 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMB01-DEG1-DEG1-TTP-TXRXtoROADMA01-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -834,18 +553,11 @@ class TransportPCETopologyTesting(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("ROADMB01-DEG1-DEG1-TTP-TXRXtoROADMA01-DEG2-DEG2-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_24_omsAttributes_ROADMB_ROADMC(self):
         # Config ROADMB01-ROADMC01 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMB01-DEG2-DEG2-TTP-TXRXtoROADMC01-DEG1-DEG1-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -854,18 +566,11 @@ class TransportPCETopologyTesting(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("ROADMB01-DEG2-DEG2-TTP-TXRXtoROADMC01-DEG1-DEG1-TTP-TXRX", data)
         self.assertEqual(response.status_code, requests.codes.created)
 
     def test_25_omsAttributes_ROADMC_ROADMB(self):
         # Config ROADMC01-ROADMB01 oms-attributes
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/ROADMC01-DEG1-DEG1-TTP-TXRXtoROADMB01-DEG2-DEG2-TTP-TXRX/org-openroadm-network-topology:"
-               "OMS-attributes/span"
-               .format(self.restconf_baseurl))
         data = {"span": {
                 "auto-spanloss": "true",
                 "engineered-spanloss": 12.2,
@@ -874,50 +579,40 @@ class TransportPCETopologyTesting(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("ROADMC01-DEG1-DEG1-TTP-TXRXtoROADMB01-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'))
+        # pylint: disable=redundant-unittest-assert
+        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):
             nodeId = res['network'][0]['node'][i]['node-id']
-            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 in listNode:
+                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], nodeId)
+                listNode.remove(nodeId)
             else:
-                self.assertEqual(res['network'][0]['node'][i]['org-openroadm-clli-network:clli'], 'NodeC')
-            listNode.remove(nodeId)
+                self.assertFalse(True)
         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 = ['ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX', 'ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-TTP-TXRX',
-                       'ROADMA01-DEG2-DEG2-TTP-TXRXtoROADMB01-DEG1-DEG1-TTP-TXRX', 'ROADMC01-DEG1-DEG1-TTP-TXRXtoROADMB01-DEG2-DEG2-TTP-TXRX',
-                       'ROADMB01-DEG1-DEG1-TTP-TXRXtoROADMA01-DEG2-DEG2-TTP-TXRX', 'ROADMB01-DEG2-DEG2-TTP-TXRXtoROADMC01-DEG1-DEG1-TTP-TXRX']
+        listR2RLink = ['ROADMA01-DEG1-DEG1-TTP-TXRXtoROADMC01-DEG2-DEG2-TTP-TXRX',
+                       'ROADMC01-DEG2-DEG2-TTP-TXRXtoROADMA01-DEG1-DEG1-TTP-TXRX',
+                       'ROADMA01-DEG2-DEG2-TTP-TXRXtoROADMB01-DEG1-DEG1-TTP-TXRX',
+                       'ROADMC01-DEG1-DEG1-TTP-TXRXtoROADMB01-DEG2-DEG2-TTP-TXRX',
+                       'ROADMB01-DEG1-DEG1-TTP-TXRXtoROADMA01-DEG2-DEG2-TTP-TXRX',
+                       'ROADMB01-DEG2-DEG2-TTP-TXRXtoROADMC01-DEG1-DEG1-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':
+            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
                 self.assertEqual(find, True)
@@ -925,11 +620,7 @@ class TransportPCETopologyTesting(unittest.TestCase):
         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
@@ -940,12 +631,10 @@ class TransportPCETopologyTesting(unittest.TestCase):
             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']
+            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'))
+            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]
@@ -953,25 +642,14 @@ class TransportPCETopologyTesting(unittest.TestCase):
             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':
-                self.assertEqual(oppLink_type, 'ADD-LINK')
-            elif link_type == 'EXPRESS-LINK':
-                self.assertEqual(oppLink_type, 'EXPRESS-LINK')
-            elif link_type == 'ROADM-TO-ROADM':
-                self.assertEqual(oppLink_type, 'ROADM-TO-ROADM')
-            elif link_type == 'XPONDER-INPUT':
-                self.assertEqual(oppLink_type, 'XPONDER-OUTPUT')
-            elif link_type == 'XPONDER-OUTPUT':
-                self.assertEqual(oppLink_type, 'XPONDER-INPUT')
+            CHECK_DICT = {'ADD-LINK': 'DROP-LINK', 'DROP-LINK': 'ADD-LINK',
+                          'EXPRESS-LINK': 'EXPRESS-LINK', 'ROADM-TO-ROADM': 'ROADM-TO-ROADM',
+                          'XPONDER-INPUT': 'XPONDER-OUTPUT', 'XPONDER-OUTUT': 'XPONDER-INPUT'}
+            if link_type in CHECK_DICT:
+                self.assertEqual(oppLink_type, CHECK_DICT[link_type])
 
     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'])
@@ -982,15 +660,14 @@ class TransportPCETopologyTesting(unittest.TestCase):
                    'ROADMB01-DEG1-DEG1-TTP-TXRXtoROADMA01-DEG2-DEG2-TTP-TXRX',
                    'ROADMB01-DEG2-DEG2-TTP-TXRXtoROADMC01-DEG1-DEG1-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):
+            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)
@@ -998,52 +675,22 @@ class TransportPCETopologyTesting(unittest.TestCase):
 
     def test_30_disconnect_ROADMB(self):
         # Delete in the topology-netconf
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/ROADMB01"
-               .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("ROADMB01")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
         # 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'))
+        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/ROADMC01"
-               .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("ROADMC01")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
         # 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'))
+        response = test_utils.del_node_request("NodeC")
         self.assertEqual(response.status_code, requests.codes.ok)
 
     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
         self.assertEqual(response.status_code, requests.codes.ok)
@@ -1054,61 +701,32 @@ class TransportPCETopologyTesting(unittest.TestCase):
             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 == 'XPDRA01-XPDR1'):
+            if nodeId == 'XPDRA01-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'):
+                    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'):
+                    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'],
+                                         ['org-openroadm-network-topology:xpdr-network-attributes']
+                                         ['tail-equipment-id'],
                                          'ROADMA01-SRG1--SRG1-PP1-TXRX')
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'XPDRA01'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-SRG1'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-SRG3'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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': 'ROADMA01'},
-                              res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-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'])
-                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
+            # Tests related to ROADMA nodes
+            elif nodeId in self.CHECK_DICT1:
+                self.assertEqual(nodeType, self.CHECK_DICT1[nodeId]['node_type'])
+                if self.CHECK_DICT1[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT1[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
                               res['network'][0]['node'][i]['supporting-node'])
-                listNode.remove(nodeId)
-            elif(nodeId == 'ROADMA01-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'},
-                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
                 self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
                               res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
@@ -1122,11 +740,7 @@ class TransportPCETopologyTesting(unittest.TestCase):
             self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADMC01-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'])
@@ -1136,35 +750,20 @@ class TransportPCETopologyTesting(unittest.TestCase):
             self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'ROADMB01')
 
     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')
+            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/XPDRA01"
-               .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("XPDRA01")
+        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'])
@@ -1172,11 +771,7 @@ class TransportPCETopologyTesting(unittest.TestCase):
         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'])
@@ -1185,11 +780,8 @@ class TransportPCETopologyTesting(unittest.TestCase):
             self.assertNotEqual(res['network'][0]['node'][i]['node-id'], 'XPDRA01')
 
     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
         self.assertEqual(response.status_code, requests.codes.ok)
@@ -1201,39 +793,16 @@ class TransportPCETopologyTesting(unittest.TestCase):
                           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 == 'ROADMA01-SRG1'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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 == 'ROADMA01-SRG3'):
-                # Test related to SRG1
-                self.assertEqual(nodeType, 'SRG')
-                self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
-                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 == 'ROADMA01-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 == 'ROADMA01-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'},
-                              res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+            if nodeId in self.CHECK_DICT1:
+                self.assertEqual(nodeType, self.CHECK_DICT1[nodeId]['node_type'])
+                if self.CHECK_DICT1[nodeId]['node_type'] == 'SRG':
+                    self.assertEqual(len(res['network'][0]['node'][i]['ietf-network-topology:termination-point']), 17)
+                for item in self.CHECK_DICT1[nodeId]['checks_tp']:
+                    self.assertIn(item, res['network'][0]['node'][i]['ietf-network-topology:termination-point'])
+                self.assertIn({'network-ref': 'clli-network', 'node-ref': 'NodeA'},
+                              res['network'][0]['node'][i]['supporting-node'])
+                self.assertIn({'network-ref': 'openroadm-network', 'node-ref': 'ROADMA01'},
+                              res['network'][0]['node'][i]['supporting-node'])
                 listNode.remove(nodeId)
             else:
                 self.assertFalse(True)
@@ -1241,64 +810,41 @@ class TransportPCETopologyTesting(unittest.TestCase):
 
     def test_39_disconnect_ROADM_XPDRA_link(self):
         # Link-1
-        url = ("{}/config/ietf-network:networks/network/openroadm-topology/ietf-network-topology:"
-               "link/XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-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'))
+        response = test_utils.del_link_request("XPDRA01-XPDR1-XPDR1-NETWORK1toROADMA01-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/ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-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'))
+        response = test_utils.del_link_request("ROADMA01-SRG1-SRG1-PP1-TXRXtoXPDRA01-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'])
         self.assertEqual(nbLink, 16)
-        expressLink = ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX']
-        addLink = ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
-                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX', 'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX']
-        dropLink = ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
-                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX', 'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX']
+        check_list = {'EXPRESS-LINK': ['ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                       'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX'],
+                      'ADD-LINK': ['ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG1-SRG1-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG2-DEG2-CTP-TXRX',
+                                   'ROADMA01-SRG3-SRG3-CP-TXRXtoROADMA01-DEG1-DEG1-CTP-TXRX'],
+                      'DROP-LINK': ['ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-SRG1-SRG1-CP-TXRX',
+                                    'ROADMA01-DEG1-DEG1-CTP-TXRXtoROADMA01-SRG3-SRG3-CP-TXRX',
+                                    'ROADMA01-DEG2-DEG2-CTP-TXRXtoROADMA01-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'):
-                link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                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'):
-                link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                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'):
-                link_id = res['network'][0]['ietf-network-topology:link'][i]['link-id']
-                find = link_id in dropLink
+            linkId = res['network'][0]['ietf-network-topology:link'][i]['link-id']
+            linkType = res['network'][0]['ietf-network-topology:link'][i]['org-openroadm-common-network:link-type']
+            if linkType in check_list:
+                find = linkId in check_list[linkType]
                 self.assertEqual(find, True)
-                dropLink.remove(link_id)
+                (check_list[linkType]).remove(linkId)
             else:
                 roadmtoroadmLink += 1
-        self.assertEqual(len(expressLink), 0)
-        self.assertEqual(len(addLink), 0)
-        self.assertEqual(len(dropLink), 0)
+        for link_type in check_list:
+            self.assertEqual(len(check_list[link_type]), 0)
         self.assertEqual(roadmtoroadmLink, 6)
         for i in range(0, nbLink):
             self.assertNotEqual(res['network'][0]['ietf-network-topology:link'][i]
@@ -1307,51 +853,26 @@ class TransportPCETopologyTesting(unittest.TestCase):
                                 ['org-openroadm-common-network:link-type'], 'XPONDER-INPUT')
 
     def test_41_disconnect_ROADMA(self):
-        url = ("{}/config/network-topology:"
-               "network-topology/topology/topology-netconf/node/ROADMA01"
-               .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("ROADMA01")
+        self.assertEqual(response.status_code, requests.codes.ok, test_utils.CODE_SHOULD_BE_200)
         # 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.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'])