diff --git a/monasca_persister/tests/test_influxdb_alarm_state_history_repository.py b/monasca_persister/tests/test_influxdb_alarm_state_history_repository.py
new file mode 100644
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+++ b/monasca_persister/tests/test_influxdb_alarm_state_history_repository.py
@@ -0,0 +1,70 @@
+# (C) Copyright 2019 Fujitsu Limited
+#
+# 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.
+
+from mock import Mock
+from mock import patch
+
+from oslotest import base
+
+from monasca_persister.repositories.influxdb.alarm_state_history_repository \
+    import AlarmStateHistInfluxdbRepository
+from monasca_persister.repositories.influxdb import abstract_repository
+
+
+class TestInfluxdbAlarmStateHistoryRepo(base.BaseTestCase):
+    def setUp(self):
+        super(TestInfluxdbAlarmStateHistoryRepo, self).setUp()
+        with patch.object(abstract_repository.cfg, 'CONF', return_value=Mock()):
+            self.alarm_state_repo = AlarmStateHistInfluxdbRepository()
+
+    def tearDown(self):
+        super(TestInfluxdbAlarmStateHistoryRepo, self).tearDown()
+
+    def test_process_message(self):
+        message = Mock()
+
+        message.message.value = """{
+            "alarm-transitioned": {
+                "alarmId": "dummyid",
+                "metrics": "dummymetrics",
+                "newState": "dummynewState",
+                "oldState": "dummyoldState",
+                "link": "dummylink",
+                "lifecycleState": "dummylifecycleState",
+                "stateChangeReason": "dummystateChangeReason",
+                "tenantId": "dummytenantId",
+                "timestamp": "10",
+                "subAlarms": {
+                    "subAlarmExpression": "dummy_sub_alarm",
+                    "currentValues": "dummy_values",
+                    "metricDefinition": "dummy_definition",
+                    "subAlarmState": "dummy_state"
+                }
+            }
+        }"""
+        expected_output = u'alarm_state_history,tenant_id=dummytenantId ' \
+                          u'tenant_id="dummytenantId",alarm_id="dummyid",' \
+                          u'metrics="\\"dummymetrics\\"",new_state="dummynewState"' \
+                          u',old_state="dummyoldState",link="dummylink",' \
+                          u'lifecycle_state="dummylifecycleState",' \
+                          u'reason="dummystateChangeReason",reason_data="{}"'
+        expected_dict = ['\\"sub_alarm_expression\\":\\"dummy_sub_alarm\\"',
+                         '\\"metric_definition\\":\\"dummy_definition\\"',
+                         '\\"sub_alarm_state\\":\\"dummy_state\\"',
+                         '\\"current_values\\":\\"dummy_values\\"']
+        actual_output = self.alarm_state_repo.process_message(message)
+        self.assertIn(expected_output, actual_output)
+        for elem in expected_dict:
+            self.assertIn(elem, actual_output)