osm_lcm/tests/test_ns.py

   1 #
   2 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   3 # not use this file except in compliance with the License. You may obtain
   4 # a copy of the License at
   5 #
   6 #         http://www.apache.org/licenses/LICENSE-2.0
   7 #
   8 # Unless required by applicable law or agreed to in writing, software
   9 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  10 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  11 # License for the specific language governing permissions and limitations
  12 # under the License.
  13 #
  14 # For those usages not covered by the Apache License, Version 2.0 please
  15 # contact: esousa@whitestack.com or alfonso.tiernosepulveda@telefonica.com
  16 ##
  17
  18
  19 import asynctest   # pip3 install asynctest --user
  20 import asyncio
  21 import yaml
  22 # import logging
  23 from os import getenv
  24 from osm_lcm.ns import NsLcm
  25 from osm_common.dbmongo import DbMongo
  26 from osm_common.msgkafka import MsgKafka
  27 from osm_common.fslocal import FsLocal
  28 from osm_lcm.lcm_utils import TaskRegistry
  29 from n2vc.vnf import N2VC
  30 from uuid import uuid4
  31
  32 from osm_lcm.tests import test_db_descriptors as descriptors
  33
  34 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  35
  36 """ Perform unittests using asynctest of osm_lcm.ns module
  37 It allows, if some testing ENV are supplied, testing without mocking some external libraries for debugging:
  38     OSMLCMTEST_NS_PUBKEY: public ssh-key returned by N2VC to inject to VMs
  39     OSMLCMTEST_NS_NAME: change name of NS
  40     OSMLCMTEST_PACKAGES_PATH: path where the vnf-packages are stored (de-compressed), each one on a 'vnfd_id' folder
  41     OSMLCMTEST_NS_IPADDRESS: IP address where emulated VMs are reached. Comma separate list
  42     OSMLCMTEST_RO_VIMID: VIM id of RO target vim IP. Obtain it with openmano datcenter-list on RO container
  43     OSMLCMTEST_VCA_NOMOCK: Do no mock the VCA, N2VC library, for debugging it
  44     OSMLCMTEST_RO_NOMOCK: Do no mock the ROClient library, for debugging it
  45     OSMLCMTEST_DB_NOMOCK: Do no mock the database library, for debugging it
  46     OSMLCMTEST_FS_NOMOCK: Do no mock the File Storage library, for debugging it
  47     OSMLCMTEST_LOGGING_NOMOCK: Do no mock the logging
  48     OSMLCM_VCA_XXX: configuration of N2VC
  49     OSMLCM_RO_XXX: configuration of RO
  50 """
  51
  52
  53 vca_config = {   # TODO replace with os.get_env to get other configurations
  54     "host": getenv("OSMLCM_VCA_HOST", "vca"),
  55     "port": getenv("OSMLCM_VCA_PORT", 17070),
  56     "user": getenv("OSMLCM_VCA_USER", "admin"),
  57     "secret": getenv("OSMLCM_VCA_SECRET", "vca"),
  58     "pubkey": getenv("OSMLCM_VCA_PUBKEY", None),
  59     'cacert': getenv("OSMLCM_VCA_CACERT", None)
  60 }
  61
  62 ro_config = {
  63     "endpoint_url": "http://{}:{}/openmano".format(getenv("OSMLCM_RO_HOST", "ro"), getenv("OSMLCM_RO_PORT", "9090")),
  64     "tenant": getenv("OSMLCM_RO_TENANT", "osm"),
  65     "logger_name": "lcm.ROclient",
  66     "loglevel": "DEBUG",
  67 }
  68
  69
  70 class TestMyNS(asynctest.TestCase):
  71
  72     def _db_get_one(self, table, q_filter=None, fail_on_empty=True, fail_on_more=True):
  73         if table not in self.db_content:
  74             self.assertTrue(False, "db.get_one called with table={}".format(table))
  75         for db_item in self.db_content[table]:
  76             if db_item["_id"] == q_filter["_id"]:
  77                 return db_item
  78         else:
  79             self.assertTrue(False, "db.get_one, table={}, not found _id={}".format(table, q_filter["_id"]))
  80
  81     def _db_get_list(self, table, q_filter=None):
  82         if table not in self.db_content:
  83             self.assertTrue(False, "db.get_list called with table={} not found".format(table))
  84         return self.db_content[table]
  85
  86     def _db_set_one(self, table, q_filter, update_dict, fail_on_empty=True, unset=None, pull=None, push=None):
  87         db_item = self._db_get_one(table, q_filter, fail_on_empty=fail_on_empty)
  88         for k, v in update_dict.items():
  89             db_nested = db_item
  90             k_list = k.split(".")
  91             for k_nested in k_list[0:-1]:
  92                 if isinstance(db_nested, list):
  93                     db_nested = db_nested[int(k_nested)]
  94                 else:
  95                     if k_nested not in db_nested:
  96                         db_nested[k_nested] = {}
  97                     db_nested = db_nested[k_nested]
  98             k_nested = k_list[-1]
  99             if isinstance(db_nested, list):
 100                 if int(k_nested) < len(db_nested):
 101                     db_nested[int(k_nested)] = v
 102                 else:
 103                     db_nested.insert(int(k_nested), v)
 104             else:
 105                 db_nested[k_nested] = v
 106
 107     async def _n2vc_DeployCharms(self, model_name, application_name, vnfd, charm_path, params={}, machine_spec={},
 108                                  callback=None, *callback_args):
 109         if callback:
 110             for status, message in (("maintenance", "installing sofwware"), ("active", "Ready!")):
 111                 # call callback after some time
 112                 asyncio.sleep(5, loop=self.loop)
 113                 callback(model_name, application_name, status, message, *callback_args)
 114
 115     @staticmethod
 116     def _n2vc_FormatApplicationName(*args):
 117         num_calls = 0
 118         while True:
 119             yield "app_name-{}".format(num_calls)
 120             num_calls += 1
 121
 122     def _n2vc_CreateExecutionEnvironment(self, namespace):
 123         k_list = namespace.split(".")
 124         ee_id = k_list[1] + "."
 125         if len(k_list) >= 2:
 126             for k in k_list[2:4]:
 127                 ee_id += k[:8]
 128         else:
 129             ee_id += "_NS_"
 130         return ee_id
 131
 132     def _ro_show(self, *args, **kwargs):
 133         ro_ns_desc = yaml.load(descriptors.db_ro_ns_text, Loader=yaml.Loader)
 134
 135         # if ip address provided, replace descriptor
 136         ip_addresses = getenv("OSMLCMTEST_NS_IPADDRESS", "")
 137         if ip_addresses:
 138             ip_addresses_list = ip_addresses.split(",")
 139             for vnf in ro_ns_desc["vnfs"]:
 140                 if not ip_addresses_list:
 141                     break
 142                 vnf["ip_address"] = ip_addresses_list[0]
 143                 for vm in vnf["vms"]:
 144                     if not ip_addresses_list:
 145                         break
 146                     vm["ip_address"] = ip_addresses_list.pop(0)
 147
 148         while True:
 149             yield ro_ns_desc
 150             for net in ro_ns_desc["nets"]:
 151                 if net["status"] != "ACTIVE":
 152                     net["status"] = "ACTIVE"
 153                     break
 154             else:
 155                 for vnf in ro_ns_desc["vnfs"]:
 156                     for vm in vnf["vms"]:
 157                         if vm["status"] != "ACTIVE":
 158                             vm["status"] = "ACTIVE"
 159                             break
 160
 161     def _ro_create(self, *args, **kwargs):
 162         while True:
 163             yield {"uuid": str(uuid4())}
 164
 165     def _return_uuid(self, *args, **kwargs):
 166         return str(uuid4())
 167
 168     async def setUp(self):
 169         # Mock DB
 170         if not getenv("OSMLCMTEST_DB_NOMOCK"):
 171             self.db = asynctest.Mock(DbMongo())
 172             self.db.get_one.side_effect = self._db_get_one
 173             self.db.get_list.side_effect = self._db_get_list
 174             self.db.set_one.side_effect = self._db_set_one
 175             self.db_content = {
 176                 "nsrs": yaml.load(descriptors.db_nsrs_text, Loader=yaml.Loader),
 177                 "nslcmops": yaml.load(descriptors.db_nslcmops_text, Loader=yaml.Loader),
 178                 "vnfrs": yaml.load(descriptors.db_vnfrs_text, Loader=yaml.Loader),
 179                 "vnfds": yaml.load(descriptors.db_vnfds_text, Loader=yaml.Loader),
 180                 "vim_accounts": yaml.load(descriptors.db_vim_accounts_text, Loader=yaml.Loader),
 181             }
 182             self.db_vim_accounts = yaml.load(descriptors.db_vim_accounts_text, Loader=yaml.Loader)
 183
 184         # Mock kafka
 185         self.msg = asynctest.Mock(MsgKafka())
 186
 187         # Mock filesystem
 188         if not getenv("OSMLCMTEST_FS_NOMOCK"):
 189             self.fs = asynctest.Mock(FsLocal())
 190             self.fs.get_params.return_value = {"path": getenv("OSMLCMTEST_PACKAGES_PATH", "./test/temp/packages")}
 191             self.fs.file_open = asynctest.mock_open()
 192             # self.fs.file_open.return_value.__enter__.return_value = asynctest.MagicMock()  # called on a python "with"
 193             # self.fs.file_open.return_value.__enter__.return_value.read.return_value = ""   # empty file
 194
 195         # Mock TaskRegistry
 196         self.lcm_tasks = asynctest.Mock(TaskRegistry())
 197         self.lcm_tasks.lock_HA.return_value = True
 198         self.lcm_tasks.waitfor_related_HA.return_value = None
 199         self.lcm_tasks.lookfor_related.return_value = ("", [])
 200
 201         # Create NsLCM class
 202         self.my_ns = NsLcm(self.db, self.msg, self.fs, self.lcm_tasks, ro_config, vca_config, self.loop)
 203
 204         # Mock logging
 205         if not getenv("OSMLCMTEST_LOGGING_NOMOCK"):
 206             self.my_ns.logger = asynctest.Mock(self.my_ns.logger)
 207
 208         # Mock VCA - N2VC
 209         if not getenv("OSMLCMTEST_VCA_NOMOCK"):
 210             pub_key = getenv("OSMLCMTEST_NS_PUBKEY", "ssh-rsa test-pub-key t@osm.com")
 211             self.my_ns.n2vc = asynctest.Mock(N2VC())
 212             self.my_ns.n2vc.GetPublicKey.return_value = getenv("OSMLCM_VCA_PUBKEY", "public_key")
 213             # allow several versions of n2vc
 214             self.my_ns.n2vc.FormatApplicationName = asynctest.Mock(side_effect=self._n2vc_FormatApplicationName())
 215             self.my_ns.n2vc.DeployCharms = asynctest.CoroutineMock(side_effect=self._n2vc_DeployCharms)
 216             self.my_ns.n2vc.CreateExecutionEnvironment = asynctest.CoroutineMock(
 217                 side_effect=self._n2vc_CreateExecutionEnvironment)
 218             self.my_ns.n2vc.InstallConfigurationSW = asynctest.CoroutineMock(return_value=pub_key)
 219             self.my_ns.n2vc.ExecutePrimitive = asynctest.CoroutineMock(side_effect=self._return_uuid)
 220             self.my_ns.n2vc.GetPrimitiveStatus = asynctest.CoroutineMock(return_value="completed")
 221             self.my_ns.n2vc.GetPrimitiveOutput = asynctest.CoroutineMock(return_value={"result": "ok",
 222                                                                                        "pubkey": pub_key})
 223
 224         # Mock RO
 225         if not getenv("OSMLCMTEST_RO_NOMOCK"):
 226             # self.my_ns.RO = asynctest.Mock(ROclient.ROClient(self.loop, **ro_config))
 227             # TODO first time should be empty list, following should return a dict
 228             self.my_ns.RO.get_list = asynctest.CoroutineMock(self.my_ns.RO.get_list, return_value=[])
 229             self.my_ns.RO.create = asynctest.CoroutineMock(self.my_ns.RO.create, side_effect=self._ro_create())
 230             self.my_ns.RO.show = asynctest.CoroutineMock(self.my_ns.RO.show, side_effect=self._ro_show())
 231             self.my_ns.RO.create_action = asynctest.CoroutineMock(self.my_ns.RO.create_action)
 232
 233     @asynctest.fail_on(active_handles=True)   # all async tasks must be completed
 234     async def test_instantiate(self):
 235         nsr_id = self.db_content["nsrs"][0]["_id"]
 236         nslcmop_id = self.db_content["nslcmops"][0]["_id"]
 237         print("Test instantiate started")
 238
 239         # delete deployed information of database
 240         if not getenv("OSMLCMTEST_DB_NOMOCK"):
 241             if self.db_content["nsrs"][0]["_admin"].get("deployed"):
 242                 del self.db_content["nsrs"][0]["_admin"]["deployed"]
 243             for db_vnfr in self.db_content["vnfrs"]:
 244                 db_vnfr.pop("ip_address", None)
 245                 for db_vdur in db_vnfr["vdur"]:
 246                     db_vdur.pop("ip_address", None)
 247                     db_vdur.pop("mac_address", None)
 248             if getenv("OSMLCMTEST_RO_VIMID"):
 249                 self.db_content["vim_accounts"][0]["_admin"]["deployed"]["RO"] = getenv("OSMLCMTEST_RO_VIMID")
 250             if getenv("OSMLCMTEST_RO_VIMID"):
 251                 self.db_content["nsrs"][0]["_admin"]["deployed"]["RO"] = getenv("OSMLCMTEST_RO_VIMID")
 252
 253         await self.my_ns.instantiate(nsr_id, nslcmop_id)
 254
 255         print("instantiate_result: {}".format(self._db_get_one("nslcmops", {"_id": nslcmop_id}).get("detailed-status")))
 256
 257         self.msg.aiowrite.assert_called_once_with("ns", "instantiated",
 258                                                   {"nsr_id": nsr_id, "nslcmop_id": nslcmop_id,
 259                                                    "operationState": "COMPLETED"},
 260                                                   loop=self.loop)
 261         self.lcm_tasks.lock_HA.assert_called_once_with('ns', 'nslcmops', nslcmop_id)
 262         if not getenv("OSMLCMTEST_LOGGING_NOMOCK"):
 263             self.assertTrue(self.my_ns.logger.debug.called, "Debug method not called")
 264             self.my_ns.logger.error.assert_not_called()
 265             self.my_ns.logger.exception().assert_not_called()
 266
 267         if not getenv("OSMLCMTEST_DB_NOMOCK"):
 268             self.assertTrue(self.db.set_one.called, "db.set_one not called")
 269
 270         # TODO add more checks of called methods
 271         # TODO add a terminate
 272
 273     def test_ns_params_2_RO(self):
 274         vim = self._db_get_list("vim_accounts")[0]
 275         vim_id = vim["_id"]
 276         ro_vim_id = vim["_admin"]["deployed"]["RO"]
 277         ns_params = {"vimAccountId": vim_id}
 278         mgmt_interface = {"cp": "cp"}
 279         vdu = [{"id": "vdu_id", "interface": [{"external-connection-point-ref": "cp"}]}]
 280         vnfd_dict = {
 281             "1": {"vdu": vdu, "mgmt-interface": mgmt_interface},
 282             "2": {"vdu": vdu, "mgmt-interface": mgmt_interface, "vnf-configuration": None},
 283             "3": {"vdu": vdu, "mgmt-interface": mgmt_interface, "vnf-configuration": {"config-access": None}},
 284             "4": {"vdu": vdu, "mgmt-interface": mgmt_interface,
 285                   "vnf-configuration": {"config-access": {"ssh-access": None}}},
 286             "5": {"vdu": vdu, "mgmt-interface": mgmt_interface,
 287                   "vnf-configuration": {"config-access": {"ssh-access": {"required": True, "default_user": "U"}}}},
 288         }
 289         nsd = {"constituent-vnfd": []}
 290         for k in vnfd_dict.keys():
 291             nsd["constituent-vnfd"].append({"vnfd-id-ref": k, "member-vnf-index": k})
 292
 293         n2vc_key_list = ["key"]
 294         ro_ns_params = self.my_ns.ns_params_2_RO(ns_params, nsd, vnfd_dict, n2vc_key_list)
 295         ro_params_expected = {'wim_account': None, "datacenter": ro_vim_id,
 296                               "vnfs": {"5": {"vdus": {"vdu_id": {"mgmt_keys": n2vc_key_list}}}}}
 297         self.assertEqual(ro_ns_params, ro_params_expected)
 298
 299     # Test scale() and related methods
 300     @asynctest.fail_on(active_handles=True)   # all async tasks must be completed
 301     async def test_scale(self):
 302         # print("Test scale started")
 303
 304         # TODO: Add more higher-lever tests here, for example:
 305         # scale-out/scale-in operations with success/error result
 306
 307         # Test scale() with missing 'scaleVnfData', should return operationState = 'FAILED'
 308         nsr_id = self.db_content["nsrs"][0]["_id"]
 309         nslcmop_id = self.db_content["nslcmops"][0]["_id"]
 310         await self.my_ns.scale(nsr_id, nslcmop_id)
 311         expected_value = 'FAILED'
 312         return_value = self._db_get_one("nslcmops", {"_id": nslcmop_id}).get("operationState")
 313         self.assertEqual(return_value, expected_value)
 314         # print("scale_result: {}".format(self._db_get_one("nslcmops", {"_id": nslcmop_id}).get("detailed-status")))
 315
 316     # Test _reintent_or_skip_suboperation()
 317     # Expected result:
 318     # - if a suboperation's 'operationState' is marked as 'COMPLETED', SUBOPERATION_STATUS_SKIP is expected
 319     # - if marked as anything but 'COMPLETED', the suboperation index is expected
 320     def test_scale_reintent_or_skip_suboperation(self):
 321         # Load an alternative 'nslcmops' YAML for this test
 322         self.db_content['nslcmops'] = yaml.load(descriptors.db_nslcmops_scale_text, Loader=yaml.Loader)
 323         db_nslcmop = self.db_content['nslcmops'][0]
 324         op_index = 2
 325         # Test when 'operationState' is 'COMPLETED'
 326         db_nslcmop['_admin']['operations'][op_index]['operationState'] = 'COMPLETED'
 327         return_value = self.my_ns._reintent_or_skip_suboperation(db_nslcmop, op_index)
 328         expected_value = self.my_ns.SUBOPERATION_STATUS_SKIP
 329         self.assertEqual(return_value, expected_value)
 330         # Test when 'operationState' is not 'COMPLETED'
 331         db_nslcmop['_admin']['operations'][op_index]['operationState'] = None
 332         return_value = self.my_ns._reintent_or_skip_suboperation(db_nslcmop, op_index)
 333         expected_value = op_index
 334         self.assertEqual(return_value, expected_value)
 335
 336     # Test _find_suboperation()
 337     # Expected result: index of the found sub-operation, or SUBOPERATION_STATUS_NOT_FOUND if not found
 338     def test_scale_find_suboperation(self):
 339         # Load an alternative 'nslcmops' YAML for this test
 340         self.db_content['nslcmops'] = yaml.load(descriptors.db_nslcmops_scale_text, Loader=yaml.Loader)
 341         db_nslcmop = self.db_content['nslcmops'][0]
 342         # Find this sub-operation
 343         op_index = 2
 344         vnf_index = db_nslcmop['_admin']['operations'][op_index]['member_vnf_index']
 345         primitive = db_nslcmop['_admin']['operations'][op_index]['primitive']
 346         primitive_params = db_nslcmop['_admin']['operations'][op_index]['primitive_params']
 347         match = {
 348             'member_vnf_index': vnf_index,
 349             'primitive': primitive,
 350             'primitive_params': primitive_params,
 351         }
 352         found_op_index = self.my_ns._find_suboperation(db_nslcmop, match)
 353         self.assertEqual(found_op_index, op_index)
 354         # Test with not-matching params
 355         match = {
 356             'member_vnf_index': vnf_index,
 357             'primitive': '',
 358             'primitive_params': primitive_params,
 359         }
 360         found_op_index = self.my_ns._find_suboperation(db_nslcmop, match)
 361         self.assertEqual(found_op_index, self.my_ns.SUBOPERATION_STATUS_NOT_FOUND)
 362         # Test with None
 363         match = None
 364         found_op_index = self.my_ns._find_suboperation(db_nslcmop, match)
 365         self.assertEqual(found_op_index, self.my_ns.SUBOPERATION_STATUS_NOT_FOUND)
 366
 367     # Test _update_suboperation_status()
 368     def test_scale_update_suboperation_status(self):
 369         db_nslcmop = self.db_content['nslcmops'][0]
 370         op_index = 0
 371         # Force the initial values to be distinct from the updated ones
 372         db_nslcmop['_admin']['operations'][op_index]['operationState'] = 'PROCESSING'
 373         db_nslcmop['_admin']['operations'][op_index]['detailed-status'] = 'In progress'
 374         # Test to change 'operationState' and 'detailed-status'
 375         operationState = 'COMPLETED'
 376         detailed_status = 'Done'
 377         self.my_ns._update_suboperation_status(
 378             db_nslcmop, op_index, operationState, detailed_status)
 379         operationState_new = db_nslcmop['_admin']['operations'][op_index]['operationState']
 380         detailed_status_new = db_nslcmop['_admin']['operations'][op_index]['detailed-status']
 381         # print("DEBUG: operationState_new={}, detailed_status_new={}".format(operationState_new, detailed_status_new))
 382         self.assertEqual(operationState, operationState_new)
 383         self.assertEqual(detailed_status, detailed_status_new)
 384
 385     # Test _add_suboperation()
 386     def test_scale_add_suboperation(self):
 387         db_nslcmop = self.db_content['nslcmops'][0]
 388         vnf_index = '1'
 389         num_ops_before = len(db_nslcmop.get('_admin', {}).get('operations', [])) - 1
 390         vdu_id = None
 391         vdu_count_index = None
 392         vdu_name = None
 393         primitive = 'touch'
 394         mapped_primitive_params = {'parameter':
 395                                    [{'data-type': 'STRING',
 396                                      'name': 'filename',
 397                                      'default-value': '<touch_filename2>'}],
 398                                    'name': 'touch'}
 399         operationState = 'PROCESSING'
 400         detailed_status = 'In progress'
 401         operationType = 'PRE-SCALE'
 402         # Add a 'pre-scale' suboperation
 403         op_index_after = self.my_ns._add_suboperation(db_nslcmop, vnf_index, vdu_id, vdu_count_index,
 404                                                       vdu_name, primitive, mapped_primitive_params,
 405                                                       operationState, detailed_status, operationType)
 406         self.assertEqual(op_index_after, num_ops_before + 1)
 407
 408         # Delete all suboperations and add the same operation again
 409         del db_nslcmop['_admin']['operations']
 410         op_index_zero = self.my_ns._add_suboperation(db_nslcmop, vnf_index, vdu_id, vdu_count_index,
 411                                                      vdu_name, primitive, mapped_primitive_params,
 412                                                      operationState, detailed_status, operationType)
 413         self.assertEqual(op_index_zero, 0)
 414
 415         # Add a 'RO' suboperation
 416         RO_nsr_id = '1234567890'
 417         RO_scaling_info = [{'type': 'create', 'count': 1, 'member-vnf-index': '1', 'osm_vdu_id': 'dataVM'}]
 418         op_index = self.my_ns._add_suboperation(db_nslcmop, vnf_index, vdu_id, vdu_count_index,
 419                                                 vdu_name, primitive, mapped_primitive_params,
 420                                                 operationState, detailed_status, operationType,
 421                                                 RO_nsr_id, RO_scaling_info)
 422         db_RO_nsr_id = db_nslcmop['_admin']['operations'][op_index]['RO_nsr_id']
 423         self.assertEqual(op_index, 1)
 424         self.assertEqual(RO_nsr_id, db_RO_nsr_id)
 425
 426         # Try to add an invalid suboperation, should return SUBOPERATION_STATUS_NOT_FOUND
 427         op_index_invalid = self.my_ns._add_suboperation(None, None, None, None, None,
 428                                                         None, None, None,
 429                                                         None, None, None)
 430         self.assertEqual(op_index_invalid, self.my_ns.SUBOPERATION_STATUS_NOT_FOUND)
 431
 432     # Test _check_or_add_scale_suboperation() and _check_or_add_scale_suboperation_RO()
 433     # check the possible return values:
 434     # - SUBOPERATION_STATUS_NEW: This is a new sub-operation
 435     # - op_index (non-negative number): This is an existing sub-operation, operationState != 'COMPLETED'
 436     # - SUBOPERATION_STATUS_SKIP: This is an existing sub-operation, operationState == 'COMPLETED'
 437     def test_scale_check_or_add_scale_suboperation(self):
 438         db_nslcmop = self.db_content['nslcmops'][0]
 439         operationType = 'PRE-SCALE'
 440         vnf_index = '1'
 441         primitive = 'touch'
 442         primitive_params = {'parameter':
 443                             [{'data-type': 'STRING',
 444                               'name': 'filename',
 445                               'default-value': '<touch_filename2>'}],
 446                             'name': 'touch'}
 447
 448         # Delete all sub-operations to be sure this is a new sub-operation
 449         del db_nslcmop['_admin']['operations']
 450
 451         # Add a new sub-operation
 452         # For new sub-operations, operationState is set to 'PROCESSING' by default
 453         op_index_new = self.my_ns._check_or_add_scale_suboperation(
 454             db_nslcmop, vnf_index, primitive, primitive_params, operationType)
 455         self.assertEqual(op_index_new, self.my_ns.SUBOPERATION_STATUS_NEW)
 456
 457         # Use the same parameters again to match the already added sub-operation
 458         # which has status 'PROCESSING' (!= 'COMPLETED') by default
 459         # The expected return value is a non-negative number
 460         op_index_existing = self.my_ns._check_or_add_scale_suboperation(
 461             db_nslcmop, vnf_index, primitive, primitive_params, operationType)
 462         self.assertTrue(op_index_existing >= 0)
 463
 464         # Change operationState 'manually' for this sub-operation
 465         db_nslcmop['_admin']['operations'][op_index_existing]['operationState'] = 'COMPLETED'
 466         # Then use the same parameters again to match the already added sub-operation,
 467         # which now has status 'COMPLETED'
 468         # The expected return value is SUBOPERATION_STATUS_SKIP
 469         op_index_skip = self.my_ns._check_or_add_scale_suboperation(
 470             db_nslcmop, vnf_index, primitive, primitive_params, operationType)
 471         self.assertEqual(op_index_skip, self.my_ns.SUBOPERATION_STATUS_SKIP)
 472
 473         # RO sub-operation test:
 474         # Repeat tests for the very similar _check_or_add_scale_suboperation_RO(),
 475         RO_nsr_id = '1234567890'
 476         RO_scaling_info = [{'type': 'create', 'count': 1, 'member-vnf-index': '1', 'osm_vdu_id': 'dataVM'}]
 477         op_index_new_RO = self.my_ns._check_or_add_scale_suboperation(
 478             db_nslcmop, vnf_index, None, None, 'SCALE-RO', RO_nsr_id, RO_scaling_info)
 479         self.assertEqual(op_index_new_RO, self.my_ns.SUBOPERATION_STATUS_NEW)
 480
 481         # Use the same parameters again to match the already added RO sub-operation
 482         op_index_existing_RO = self.my_ns._check_or_add_scale_suboperation(
 483             db_nslcmop, vnf_index, None, None, 'SCALE-RO', RO_nsr_id, RO_scaling_info)
 484         self.assertTrue(op_index_existing_RO >= 0)
 485
 486         # Change operationState 'manually' for this RO sub-operation
 487         db_nslcmop['_admin']['operations'][op_index_existing_RO]['operationState'] = 'COMPLETED'
 488         # Then use the same parameters again to match the already added sub-operation,
 489         # which now has status 'COMPLETED'
 490         # The expected return value is SUBOPERATION_STATUS_SKIP
 491         op_index_skip_RO = self.my_ns._check_or_add_scale_suboperation(
 492             db_nslcmop, vnf_index, None, None, 'SCALE-RO', RO_nsr_id, RO_scaling_info)
 493         self.assertEqual(op_index_skip_RO, self.my_ns.SUBOPERATION_STATUS_SKIP)
 494
 495
 496 if __name__ == '__main__':
 497     asynctest.main()