[DCAEGEN2] PMSH AppConfig Update

   - Simplified existing PMSH Appconfig
   - Major version bump for J release

Issue-ID: DCAEGEN2-2814

Signed-off-by: ajay_dp001 <ajay.deep.singh@est.tech>
Change-Id: I8ed572ccc7385cfdf91e51a126622821c113c53d
diff --git a/components/pm-subscription-handler/tests/base_setup.py b/components/pm-subscription-handler/tests/base_setup.py
index 9e12f96..e422cea 100755
--- a/components/pm-subscription-handler/tests/base_setup.py
+++ b/components/pm-subscription-handler/tests/base_setup.py
@@ -1,5 +1,5 @@
 # ============LICENSE_START===================================================
-#  Copyright (C) 2020 Nordix Foundation.
+#  Copyright (C) 2020-2021 Nordix Foundation.
 # ============================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@
 from mod import create_app, db
 from mod.network_function import NetworkFunctionFilter
 from mod.pmsh_utils import AppConfig
+from mod.pmsh_config import AppConfig as NewAppConfig
 
 
 def get_pmsh_config(file_path='data/cbs_data_1.json'):
@@ -51,6 +52,10 @@
         self.app_conf = AppConfig()
         self.app_conf.nf_filter = NetworkFunctionFilter(**self.app_conf.subscription.nfFilter)
 
+    @patch('mod.pmsh_config.AppConfig._get_config', MagicMock(return_value=get_pmsh_config()))
+    def setUpAppConf(self):
+        self.pmsh_app_conf = NewAppConfig()
+
     def tearDown(self):
         db.drop_all()
 
diff --git a/components/pm-subscription-handler/tests/test_pmsh_config.py b/components/pm-subscription-handler/tests/test_pmsh_config.py
new file mode 100644
index 0000000..deb867b
--- /dev/null
+++ b/components/pm-subscription-handler/tests/test_pmsh_config.py
@@ -0,0 +1,92 @@
+# ============LICENSE_START===================================================
+#  Copyright (C) 2021 Nordix Foundation.
+# ============================================================================
+# 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=====================================================
+from unittest.mock import Mock, patch
+
+import responses
+from requests import Session
+
+from mod.pmsh_config import MRTopic, AppConfig
+from tests.base_setup import BaseClassSetup
+
+
+class PmshConfigTestCase(BaseClassSetup):
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+    def setUp(self):
+        super().setUpAppConf()
+        self.mock_app = Mock()
+
+    def tearDown(self):
+        super().tearDown()
+
+    @classmethod
+    def tearDownClass(cls):
+        super().tearDownClass()
+
+    def test_config_get_aaf_creds(self):
+        self.assertEqual(self.pmsh_app_conf.enable_tls, 'true')
+        self.assertEqual(self.pmsh_app_conf.aaf_id, 'dcae@dcae.onap.org')
+        self.assertEqual(self.pmsh_app_conf.aaf_pass, 'demo123456!')
+
+    def test_config_get_cert_data(self):
+        self.assertEqual(self.pmsh_app_conf.key_path, '/opt/app/pmsh/etc/certs/key.pem')
+        self.assertEqual(self.pmsh_app_conf.cert_path, '/opt/app/pmsh/etc/certs/cert.pem')
+        self.assertEqual(self.pmsh_app_conf.ca_cert_path, '/opt/app/pmsh/etc/certs/cacert.pem')
+
+    def test_singleton_instance_is_accessible_using_class_method(self):
+        my_singleton_instance = AppConfig.get_instance()
+        self.assertIsNotNone(my_singleton_instance)
+        self.assertIsInstance(my_singleton_instance, AppConfig)
+
+    @patch.object(Session, 'post')
+    def test_mr_pub_publish_to_topic_success(self, mock_session):
+        mock_session.return_value.status_code = 200
+        with patch('requests.Session.post') as session_post_call:
+            self.pmsh_app_conf.publish_to_topic(MRTopic.POLICY_PM_PUBLISHER.value,
+                                                {"key": "43c4ee19-6b8d-4279-a80f-c507850aae47"})
+            session_post_call.assert_called_once()
+
+    @responses.activate
+    def test_mr_pub_publish_to_topic_fail(self):
+        responses.add(responses.POST,
+                      'https://message-router:3905/events/org.onap.dmaap.mr.PM_SUBSCRIPTIONS',
+                      json={"error": "Client Error"}, status=400)
+        with self.assertRaises(Exception):
+            self.pmsh_app_conf.publish_to_topic(MRTopic.POLICY_PM_PUBLISHER.value,
+                                                {"key": "43c4ee19-6b8d-4279-a80f-c507850aae47"})
+
+    @responses.activate
+    def test_mr_sub_get_from_topic_success(self):
+        responses.add(responses.GET,
+                      'https://message-router:3905/events/org.onap.dmaap.mr.PM_SUBSCRIPTIONS/'
+                      'dcae_pmsh_cg/1?timeout=5000',
+                      json={"key": "43c4ee19-6b8d-4279-a80f-c507850aae47"}, status=200)
+        mr_topic_data = self.pmsh_app_conf.get_from_topic(MRTopic.POLICY_PM_SUBSCRIBER.value, 1)
+        self.assertIsNotNone(mr_topic_data)
+
+    @responses.activate
+    def test_mr_sub_get_from_topic_fail(self):
+        responses.add(responses.GET,
+                      'https://message-router:3905/events/org.onap.dmaap.mr.PM_SUBSCRIPTIONS/'
+                      'dcae_pmsh_cg/1?timeout=5000',
+                      json={"key": "43c4ee19-6b8d-4279-a80f-c507850aae47"}, status=400)
+        with self.assertRaises(Exception):
+            self.pmsh_app_conf.get_from_topic(MRTopic.POLICY_PM_SUBSCRIBER.value, 1)