diff --git a/cisco_asa_sensors.mkp b/cisco_asa_sensors.mkp
index 70144cec686e6cc98ed6750bd8bb908f7fd53f3d..0cea7f74b2eadbff8f78326a7225b96ef487d6fc 100644
Binary files a/cisco_asa_sensors.mkp and b/cisco_asa_sensors.mkp differ
diff --git a/lib/python3/tests/unit/cmk/base/plugins/agent_based/test_cisco_asa_sensors.py b/lib/python3/tests/unit/cmk/base/plugins/agent_based/test_cisco_asa_sensors.py
new file mode 100644
index 0000000000000000000000000000000000000000..edfa60a93e4a35320911434c48a1be1d46fc5391
--- /dev/null
+++ b/lib/python3/tests/unit/cmk/base/plugins/agent_based/test_cisco_asa_sensors.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (C) 2019 tribe29 GmbH - License: GNU General Public License v2
+# This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
+# conditions defined in the file COPYING, which is part of this source code package.
+
+import pytest  # type: ignore[import]
+
+from cmk.base.plugins.agent_based.cisco_asa_sensors import (
+    CiscoAsaPowerSensor,
+    CiscoAsaTempSensor,
+    CiscoAsaFanSensor,
+    CiscoAsaSensors,
+    get_status_readable,
+    get_sensor_state,
+    parse_cisco_asa_sensors,
+)
+
+from cmk.base.plugins.agent_based.agent_based_api.v1 import (
+    State,
+)
+
+
+@pytest.mark.parametrize("string_table,expected_parsed_data", [
+    (
+            [[
+                ['Chassis', '', '', '', ''],
+                ['Processor 0/0', '', '', '', ''],
+                ['Processor 0/1', '', '', '', ''],
+                ['Processor 0/2', '', '', '', ''],
+                ['ASA5515 Slot for Removable Drive 0', '', '', '', ''],
+                ['Micron_M550_MTFDDAK128MAY Removable Drive in Slot 0', '', '', '', ''],
+                ['Chassis Cooling Fan 1', '', '', '', ''],
+                ['Chassis Fan Sensor 1', '10', '7680', '1', 'rpm'],
+                ['Chassis Cooling Fan 2', '', '', '', ''],
+                ['Chassis Fan Sensor 2', '10', '7936', '1', 'rpm'],
+                ['Chassis Cooling Fan 3', '', '', '', ''],
+                ['Chassis Fan Sensor 3', '10', '7680', '1', 'rpm'],
+                ['CPU Temperature Sensor 0/0', '8', '34', '1', 'celsius'],
+                ['Chassis Ambient Temperature Sensor 1', '8', '32', '1', 'celsius'],
+                ['Chassis Ambient Temperature Sensor 2', '8', '30', '1', 'celsius'],
+                ['Chassis Ambient Temperature Sensor 3', '8', '33', '1', 'celsius'],
+                ['Power supply 1', '12', '', '3', ''],
+                ['Power supply 2', '12', '', '1', ''],
+                ['Gi0/0', '', '', '', ''],
+                ['Gi0/1', '', '', '', ''],
+                ['Gi0/2', '', '', '', ''],
+                ['Gi0/3', '', '', '', ''],
+                ['Gi0/4', '', '', '', ''],
+                ['Gi0/5', '', '', '', ''],
+                ['In0/0', '', '', '', ''],
+                ['In0/1', '', '', '', ''],
+                ['Ma0/0', '', '', '', ''],
+                ['Po1', '', '', '', '']
+            ]],
+            CiscoAsaSensors(
+                temp={
+                    'CPU Sensor 0/0': CiscoAsaTempSensor(value=34.0, state=State.OK, status_readable='Ok',
+                                                         unit='celsius'),
+                    'Chassis Ambient Sensor 1': CiscoAsaTempSensor(value=32.0, state=State.OK, status_readable='Ok',
+                                                                   unit='celsius'),
+                    'Chassis Ambient Sensor 2': CiscoAsaTempSensor(value=30.0, state=State.OK, status_readable='Ok',
+                                                                   unit='celsius'),
+                    'Chassis Ambient Sensor 3': CiscoAsaTempSensor(value=33.0, state=State.OK, status_readable='Ok',
+                                                                   unit='celsius')},
+                fan={
+                    'Chassis Sensor 1': CiscoAsaFanSensor(value=7680, state=State.OK, status_readable='Ok', unit='rpm'),
+                    'Chassis Sensor 2': CiscoAsaFanSensor(value=7936, state=State.OK, status_readable='Ok', unit='rpm'),
+                    'Chassis Sensor 3': CiscoAsaFanSensor(value=7680, state=State.OK, status_readable='Ok',
+                                                          unit='rpm')},
+                power={'supply 1': CiscoAsaPowerSensor(state=State.CRIT, status_readable='nonoperational'),
+                       'supply 2': CiscoAsaPowerSensor(state=State.OK, status_readable='Ok')
+                       })
+            ,
+    ),
+])
+def test_parse_cisco_asa_sensors(string_table, expected_parsed_data):
+    assert parse_cisco_asa_sensors(string_table) == expected_parsed_data
+
+
+if __name__ == "__main__":
+    pytest.main(["-vvsx", "-T", "unit", __file__])
diff --git a/packages/cisco_asa_sensors b/packages/cisco_asa_sensors
index 7ac90b0df89d74bbb72d02dc411b639e45c55fbe..5ff0718a0d30a69ae43d2e5fc30032154a824cfd 100644
--- a/packages/cisco_asa_sensors
+++ b/packages/cisco_asa_sensors
@@ -3,11 +3,12 @@
                 'and power supply\n',
  'download_url': 'https://thl-cmk.hopto.org',
  'files': {'agent_based': ['cisco_asa_sensors.py'],
-           'checkman': ['cisco_asa_fan', 'cisco_asa_power', 'cisco_asa_temp']},
+           'checkman': ['cisco_asa_fan', 'cisco_asa_power', 'cisco_asa_temp'],
+           'lib': ['python3/tests/unit/cmk/base/plugins/agent_based/test_cisco_asa_sensors.py']},
  'name': 'cisco_asa_sensors',
- 'num_files': 4,
+ 'num_files': 5,
  'title': 'Cisco ASA Sensors',
- 'version': '20210322_v0.0.2',
+ 'version': '20210323_v0.0.2a',
  'version.min_required': '2.0.0',
  'version.packaged': '2.0.0p1',
  'version.usable_until': None}
\ No newline at end of file