initial unittest for osm_nbi.instance_topics

Change-Id: Ib38b3e6625014c8641e7cadce69624f46b41d1ac
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/osm_nbi/tests/test_instance_topics.py b/osm_nbi/tests/test_instance_topics.py
new file mode 100644
index 0000000..5c91114
--- /dev/null
+++ b/osm_nbi/tests/test_instance_topics.py
@@ -0,0 +1,235 @@
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: esousa@whitestack.com or alfonso.tiernosepulveda@telefonica.com
+##
+
+import unittest
+from unittest.mock import Mock, mock_open   # patch, MagicMock
+from osm_common.dbbase import DbException
+from osm_nbi.engine import EngineException
+from osm_common.dbmemory import DbMemory
+from osm_common.fsbase import FsBase
+from osm_common.msgbase import MsgBase
+from http import HTTPStatus
+from osm_nbi.instance_topics import NsLcmOpTopic, NsrTopic
+from osm_nbi.tests.test_db_descriptors import db_vim_accounts_text, db_nsds_text, db_vnfds_text, db_nsrs_text,\
+    db_vnfrs_text
+from copy import deepcopy
+import yaml
+
+
+class TestNsLcmOpTopic(unittest.TestCase):
+
+    def setUp(self):
+        self.db = DbMemory()
+        self.fs = Mock(FsBase())
+        self.fs.get_params.return_value = {"./fake/folder"}
+        self.fs.file_open = mock_open()
+        self.msg = Mock(MsgBase())
+        # create class
+        self.nslcmop_topic = NsLcmOpTopic(self.db, self.fs, self.msg, None)
+        self.nslcmop_topic.check_quota = Mock(return_value=None)  # skip quota
+
+        self.db.create_list("vim_accounts", yaml.load(db_vim_accounts_text, Loader=yaml.Loader))
+        self.db.create_list("nsds", yaml.load(db_nsds_text, Loader=yaml.Loader))
+        self.db.create_list("vnfds", yaml.load(db_vnfds_text, Loader=yaml.Loader))
+        self.db.create_list("vnfrs", yaml.load(db_vnfrs_text, Loader=yaml.Loader))
+        self.db.create_list("nsrs", yaml.load(db_nsrs_text, Loader=yaml.Loader))
+        self.db.create = Mock(return_value="created_id")
+        self.db.set_one = Mock(return_value={"updated": 1})
+        self.nsd = self.db.get_list("nsds")[0]
+        self.nsd_id = self.nsd["_id"]
+        self.nsr = self.db.get_list("nsrs")[0]
+        self.nsr_id = self.nsr["_id"]
+        self.nsr_project = self.nsr["_admin"]["projects_read"][0]
+
+        self.vim = self.db.get_list("vim_accounts")[0]
+        self.vim_id = self.vim["_id"]
+
+    def test_create_instantiate(self):
+        session = {"force": False, "admin": False, "public": False, "project_id": [self.nsr_project], "method": "write"}
+        indata = {
+            "nsdId": self.nsd_id,
+            "nsInstanceId": self.nsr_id,
+            "nsName": "name",
+            "vimAccountId": self.vim_id,
+            "additionalParamsForVnf": [{"member-vnf-index": "1", "additionalParams": {"touch_filename": "file"}},
+                                       {"member-vnf-index": "2", "additionalParams": {"touch_filename": "file"}}],
+            "vnf": [{"member-vnf-index": "1",
+                     "vdu": [{"id": "dataVM", "interface": [{"name": "dataVM-eth0",
+                                                             "ip-address": "10.11.12.13",
+                                                             "floating-ip-required": True}]
+                              }],
+                     "internal-vld": [{"name": "internal", "vim-network-id": "vim-net-id"}]
+                     }],
+            "lcmOperationType": "instantiate",
+
+        }
+        rollback = []
+        headers = {}
+
+        nslcmop_id, _ = self.nslcmop_topic.new(rollback, session, indata=indata, kwargs=None, headers=headers)
+
+        # check nslcmop is created at database
+        self.assertEqual(self.db.create.call_count, 1, "database create not called, or called more than once")
+        _call = self.db.create.call_args_list[0]
+        self.assertEqual(_call[0][0], "nslcmops", "must be create a nslcmops entry at database")
+
+        created_nslcmop = _call[0][1]
+        self.assertEqual(nslcmop_id, created_nslcmop["_id"], "mismatch between return id and database '_id'")
+        self.assertEqual(self.nsr_id, created_nslcmop["nsInstanceId"], "bad reference id from nslcmop to nsr")
+        self.assertTrue(created_nslcmop["_admin"].get("projects_read"),
+                        "Database record must contain '_amdin.projects_read'")
+        self.assertIn("created", created_nslcmop["_admin"], "Database record must contain '_admin.created'")
+        self.assertTrue(created_nslcmop["lcmOperationType"] == "instantiate",
+                        "Database record must contain 'lcmOperationType=instantiate'")
+
+        self.assertEqual(len(rollback), len(self.db.set_one.call_args_list) + 1,
+                         "rollback mismatch with created/set items at database")
+
+        # test parameters with error
+        bad_id = "88d90b0c-faff-4b9f-bccd-aaaaaaaaaaaa"
+        test_set = (
+            ("nsr not found", {"nsInstanceId": bad_id}, DbException, HTTPStatus.NOT_FOUND, ("not found", bad_id)),
+            # TODO add "nsd"
+            # ({"vimAccountId": bad_id}, DbException, HTTPStatus.NOT_FOUND, ("not found", bad_id)),  # TODO add "vim"
+            ("bad member-vnf-index", {"vnf.0.member-vnf-index": "k"}, EngineException, HTTPStatus.BAD_REQUEST,
+             ("k",)),
+        )
+        for message, kwargs_, expect_exc, expect_code, expect_text_list in test_set:
+            with self.assertRaises(expect_exc, msg=message) as e:
+                self.nslcmop_topic.new(rollback, session, indata=deepcopy(indata), kwargs=kwargs_, headers=headers)
+            if expect_code:
+                self.assertTrue(e.exception.http_code == expect_code)
+            if expect_text_list:
+                for expect_text in expect_text_list:
+                    self.assertIn(expect_text, str(e.exception).lower(),
+                                  "Expected '{}' at exception text".format(expect_text))
+
+    def test_check_ns_operation_action(self):
+        nsrs = self.db.get_list("nsrs")[0]
+        session = {}
+
+        indata = {
+            "member_vnf_index": "1",
+            "vdu_id": None,
+            "primitive": "touch",
+            "primitive_params": {"filename": "file"}
+        }
+
+        self.nslcmop_topic._check_ns_operation(session, nsrs, "action", indata)
+        for k in indata:
+            indata_copy = indata.copy()
+            if k == "primitive_params":
+                continue
+            indata_copy[k] = "non_existing"
+            with self.assertRaises(EngineException) as exc_manager:
+                self.nslcmop_topic._check_ns_operation(session, nsrs, "action", indata_copy)
+            exc = exc_manager.exception
+            self.assertEqual(exc.http_code, HTTPStatus.BAD_REQUEST, "Engine exception bad http_code with {}".
+                             format(indata_copy))
+
+
+class TestNsrTopic(unittest.TestCase):
+
+    def setUp(self):
+        self.db = DbMemory()
+        self.fs = Mock(FsBase())
+        self.fs.get_params.return_value = {"./fake/folder"}
+        self.fs.file_open = mock_open()
+        self.msg = Mock(MsgBase())
+        # create class
+        self.nsr_topic = NsrTopic(self.db, self.fs, self.msg, None)
+        self.nsr_topic.check_quota = Mock(return_value=None)  # skip quota
+
+        self.db.create_list("vim_accounts", yaml.load(db_vim_accounts_text, Loader=yaml.Loader))
+        self.db.create_list("nsds", yaml.load(db_nsds_text, Loader=yaml.Loader))
+        self.db.create_list("vnfds", yaml.load(db_vnfds_text, Loader=yaml.Loader))
+        self.db.create = Mock(return_value="created_id")
+        self.nsd = self.db.get_list("nsds")[0]
+        self.nsd_id = self.nsd["_id"]
+        self.nsd_project = self.nsd["_admin"]["projects_read"][0]
+
+        self.vim = self.db.get_list("vim_accounts")[0]
+        self.vim_id = self.vim["_id"]
+
+    def test_create(self):
+        session = {"force": False, "admin": False, "public": False, "project_id": [self.nsd_project], "method": "write"}
+        indata = {
+            "nsdId": self.nsd_id,
+            "nsName": "name",
+            "vimAccountId": self.vim_id,
+            "additionalParamsForVnf": [{"member-vnf-index": "1", "additionalParams": {"touch_filename": "file"}},
+                                       {"member-vnf-index": "2", "additionalParams": {"touch_filename": "file"}}]
+        }
+        rollback = []
+        headers = {}
+
+        self.nsr_topic.new(rollback, session, indata=indata, kwargs=None, headers=headers)
+
+        # check vnfrs and nsrs created in whatever order
+        created_vnfrs = []
+        created_nsrs = []
+        nsr_id = None
+        for _call in self.db.create.call_args_list:
+            assert len(_call[0]) >= 2, "called db.create with few parameters"
+            created_item = _call[0][1]
+            if _call[0][0] == "vnfrs":
+                created_vnfrs.append(created_item)
+                self.assertIn("member-vnf-index-ref", created_item,
+                              "Created item must contain member-vnf-index-ref section")
+                if nsr_id:
+                    self.assertEqual(nsr_id, created_item["nsr-id-ref"], "bad reference id from vnfr to nsr")
+                else:
+                    nsr_id = created_item["nsr-id-ref"]
+
+            elif _call[0][0] == "nsrs":
+                created_nsrs.append(created_item)
+                if nsr_id:
+                    self.assertEqual(nsr_id, created_item["_id"], "bad reference id from vnfr to nsr")
+                else:
+                    nsr_id = created_item["_id"]
+            else:
+                assert True, "created an unknown record {} at database".format(_call[0][0])
+
+            self.assertTrue(created_item["_admin"].get("projects_read"),
+                            "Database record must contain '_amdin.projects_read'")
+            self.assertIn("created", created_item["_admin"], "Database record must contain '_admin.created'")
+            self.assertTrue(created_item["_admin"]["nsState"] == "NOT_INSTANTIATED",
+                            "Database record must contain '_admin.nstate=NOT INSTANTIATE'")
+
+        self.assertEqual(len(created_vnfrs), len(self.nsd["constituent-vnfd"]),
+                         "created a mismatch number of vnfr at database")
+        self.assertEqual(len(created_nsrs), 1, "Only one nsrs must be created at database")
+        self.assertEqual(len(rollback), len(created_vnfrs) + 1, "rollback mismatch with created items at database")
+
+        # test parameters with error
+        bad_id = "88d90b0c-faff-4b9f-bccd-aaaaaaaaaaaa"
+        test_set = (
+            # TODO add "nsd"
+            ("nsd not found", {"nsdId": bad_id}, DbException, HTTPStatus.NOT_FOUND, ("not found", bad_id)),
+            # ({"vimAccountId": bad_id}, DbException, HTTPStatus.NOT_FOUND, ("not found", bad_id)),  # TODO add "vim"
+            ("additional params not supply", {"additionalParamsForVnf.0.member-vnf-index": "k"}, EngineException,
+             HTTPStatus.BAD_REQUEST, None),
+        )
+        for message, kwargs_, expect_exc, expect_code, expect_text_list in test_set:
+            with self.assertRaises(expect_exc, msg=message) as e:
+                self.nsr_topic.new(rollback, session, indata=deepcopy(indata), kwargs=kwargs_, headers=headers)
+            if expect_code:
+                self.assertTrue(e.exception.http_code == expect_code)
+            if expect_text_list:
+                for expect_text in expect_text_list:
+                    self.assertIn(expect_text, str(e.exception).lower(),
+                                  "Expected '{}' at exception text".format(expect_text))