+
+# class TestCharm(unittest.TestCase):
+# """LCM Charm unit tests."""
+
+# def setUp(self) -> NoReturn:
+# """Test setup"""
+# self.harness = Harness(LcmCharm)
+# self.harness.set_leader(is_leader=True)
+# self.harness.begin()
+
+# def test_on_start_without_relations(self) -> NoReturn:
+# """Test installation without any relation."""
+# self.harness.charm.on.start.emit()
+
+# # Verifying status
+# self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+# # Verifying status message
+# self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+# self.assertTrue(
+# self.harness.charm.unit.status.message.startswith("Waiting for ")
+# )
+# self.assertIn("kafka", self.harness.charm.unit.status.message)
+# self.assertIn("mongodb", self.harness.charm.unit.status.message)
+# self.assertIn("ro", self.harness.charm.unit.status.message)
+# self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+# def test_on_start_with_relations(self) -> NoReturn:
+# """Test deployment without keystone."""
+# expected_result = {
+# "version": 3,
+# "containers": [
+# {
+# "name": "lcm",
+# "imageDetails": self.harness.charm.image.fetch(),
+# "imagePullPolicy": "Always",
+# "ports": [
+# {
+# "name": "lcm",
+# "containerPort": 9999,
+# "protocol": "TCP",
+# }
+# ],
+# "envConfig": {
+# "ALLOW_ANONYMOUS_LOGIN": "yes",
+# "OSMLCM_GLOBAL_LOGLEVEL": "INFO",
+# "OSMLCM_RO_HOST": "ro",
+# "OSMLCM_RO_PORT": 9090,
+# "OSMLCM_RO_TENANT": "osm",
+# "OSMLCM_MESSAGE_DRIVER": "kafka",
+# "OSMLCM_MESSAGE_HOST": "kafka",
+# "OSMLCM_MESSAGE_PORT": 9092,
+# "OSMLCM_DATABASE_DRIVER": "mongo",
+# "OSMLCM_DATABASE_URI": "mongodb://mongo:27017",
+# "OSMLCM_DATABASE_COMMONKEY": "osm",
+# "OSMLCM_STORAGE_DRIVER": "mongo",
+# "OSMLCM_STORAGE_PATH": "/app/storage",
+# "OSMLCM_STORAGE_COLLECTION": "files",
+# "OSMLCM_STORAGE_URI": "mongodb://mongo:27017",
+# "OSMLCM_VCA_HOST": "admin",
+# "OSMLCM_VCA_PORT": 17070,
+# "OSMLCM_VCA_USER": "admin",
+# "OSMLCM_VCA_PUBKEY": "secret",
+# "OSMLCM_VCA_SECRET": "secret",
+# "OSMLCM_VCA_CACERT": "",
+# "OSMLCM_VCA_CLOUD": "localhost",
+# "OSMLCM_VCA_K8S_CLOUD": "k8scloud",
+# },
+# }
+# ],
+# "kubernetesResources": {"ingressResources": []},
+# }
+
+# self.harness.charm.on.start.emit()
+
+# # Check if kafka datastore is initialized
+# self.assertIsNone(self.harness.charm.state.message_host)
+# self.assertIsNone(self.harness.charm.state.message_port)
+
+# # Check if mongodb datastore is initialized
+# self.assertIsNone(self.harness.charm.state.database_uri)
+
+# # Check if RO datastore is initialized
+# self.assertIsNone(self.harness.charm.state.ro_host)
+# self.assertIsNone(self.harness.charm.state.ro_port)
+
+# # Initializing the kafka relation
+# kafka_relation_id = self.harness.add_relation("kafka", "kafka")
+# self.harness.add_relation_unit(kafka_relation_id, "kafka/0")
+# self.harness.update_relation_data(
+# kafka_relation_id, "kafka/0", {"host": "kafka", "port": 9092}
+# )
+
+# # Initializing the mongo relation
+# mongodb_relation_id = self.harness.add_relation("mongodb", "mongodb")
+# self.harness.add_relation_unit(mongodb_relation_id, "mongodb/0")
+# self.harness.update_relation_data(
+# mongodb_relation_id,
+# "mongodb/0",
+# {"connection_string": "mongodb://mongo:27017"},
+# )
+
+# # Initializing the RO relation
+# ro_relation_id = self.harness.add_relation("ro", "ro")
+# self.harness.add_relation_unit(ro_relation_id, "ro/0")
+# self.harness.update_relation_data(
+# ro_relation_id, "ro/0", {"host": "ro", "port": 9090}
+# )
+
+# # Checking if kafka data is stored
+# self.assertEqual(self.harness.charm.state.message_host, "kafka")
+# self.assertEqual(self.harness.charm.state.message_port, 9092)
+
+# # Checking if mongodb data is stored
+# self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
+
+# # Checking if RO data is stored
+# self.assertEqual(self.harness.charm.state.ro_host, "ro")
+# self.assertEqual(self.harness.charm.state.ro_port, 9090)
+
+# # Verifying status
+# self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+# pod_spec, _ = self.harness.get_pod_spec()
+
+# self.assertDictEqual(expected_result, pod_spec)
+
+# def test_on_kafka_relation_unit_changed(self) -> NoReturn:
+# """Test to see if kafka relation is updated."""
+# self.harness.charm.on.start.emit()
+
+# self.assertIsNone(self.harness.charm.state.message_host)
+# self.assertIsNone(self.harness.charm.state.message_port)
+
+# relation_id = self.harness.add_relation("kafka", "kafka")
+# self.harness.add_relation_unit(relation_id, "kafka/0")
+# self.harness.update_relation_data(
+# relation_id, "kafka/0", {"host": "kafka", "port": 9092}
+# )
+
+# self.assertEqual(self.harness.charm.state.message_host, "kafka")
+# self.assertEqual(self.harness.charm.state.message_port, 9092)
+
+# # Verifying status
+# self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+# # Verifying status message
+# self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+# self.assertTrue(
+# self.harness.charm.unit.status.message.startswith("Waiting for ")
+# )
+# self.assertNotIn("kafka", self.harness.charm.unit.status.message)
+# self.assertIn("mongodb", self.harness.charm.unit.status.message)
+# self.assertIn("ro", self.harness.charm.unit.status.message)
+# self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+# def test_on_mongodb_unit_relation_changed(self) -> NoReturn:
+# """Test to see if mongodb relation is updated."""
+# self.harness.charm.on.start.emit()
+
+# self.assertIsNone(self.harness.charm.state.database_uri)
+
+# relation_id = self.harness.add_relation("mongodb", "mongodb")
+# self.harness.add_relation_unit(relation_id, "mongodb/0")
+# self.harness.update_relation_data(
+# relation_id, "mongodb/0", {"connection_string": "mongodb://mongo:27017"}
+# )
+
+# self.assertEqual(self.harness.charm.state.database_uri, "mongodb://mongo:27017")
+
+# # Verifying status
+# self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+# # Verifying status message
+# self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+# self.assertTrue(
+# self.harness.charm.unit.status.message.startswith("Waiting for ")
+# )
+# self.assertIn("kafka", self.harness.charm.unit.status.message)
+# self.assertNotIn("mongodb", self.harness.charm.unit.status.message)
+# self.assertIn("ro", self.harness.charm.unit.status.message)
+# self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))
+
+# def test_on_ro_unit_relation_changed(self) -> NoReturn:
+# """Test to see if RO relation is updated."""
+# self.harness.charm.on.start.emit()
+
+# self.assertIsNone(self.harness.charm.state.ro_host)
+# self.assertIsNone(self.harness.charm.state.ro_port)
+
+# relation_id = self.harness.add_relation("ro", "ro")
+# self.harness.add_relation_unit(relation_id, "ro/0")
+# self.harness.update_relation_data(
+# relation_id, "ro/0", {"host": "ro", "port": 9090}
+# )
+
+# self.assertEqual(self.harness.charm.state.ro_host, "ro")
+# self.assertEqual(self.harness.charm.state.ro_port, 9090)
+
+# # Verifying status
+# self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+# # Verifying status message
+# self.assertGreater(len(self.harness.charm.unit.status.message), 0)
+# self.assertTrue(
+# self.harness.charm.unit.status.message.startswith("Waiting for ")
+# )
+# self.assertIn("kafka", self.harness.charm.unit.status.message)
+# self.assertIn("mongodb", self.harness.charm.unit.status.message)
+# self.assertNotIn("ro", self.harness.charm.unit.status.message)
+# self.assertTrue(self.harness.charm.unit.status.message.endswith(" relations"))