diff --git a/test/module/test_descriptor.py b/test/module/test_descriptor.py
new file mode 100644
index 0000000..c064170
--- /dev/null
+++ b/test/module/test_descriptor.py
@@ -0,0 +1,61 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+"""!
+    ____  ____  ______       __      __       __       _____
+   / __ )/ __ \/ ___/ |     / /___ _/ /______/ /_     |__  /
+  / __  / / / /\__ \| | /| / / __ `/ __/ ___/ __ \     /_ <
+ / /_/ / /_/ /___/ /| |/ |/ / /_/ / /_/ /__/ / / /   ___/ /
+/_____/\____//____/ |__/|__/\__,_/\__/\___/_/ /_/   /____/
+                German BOS Information Script
+                     by Bastian Schroll
+
+@file:        test_descriptor.py
+@date:        14.04.2020
+@author:      Bastian Schroll
+@description: Unittests for BOSWatch. File have to run as "pytest" unittest
+"""
+# problem of the pytest fixtures
+# pylint: disable=redefined-outer-name
+import logging
+import pytest
+from boswatch.utils import paths
+
+from boswatch.configYaml import ConfigYAML
+from boswatch.packet import Packet
+from module.descriptor import BoswatchModule as Descriptor
+
+
+def setup_method(method):
+    logging.debug("[TEST] %s.%s", method.__module__, method.__name__)
+
+
+@pytest.fixture
+def makeDescriptor():
+    config = ConfigYAML()
+    assert config.loadConfigFile(paths.TEST_PATH + "test_config.yaml") is True
+    descriptor = Descriptor(config.get("descriptor_test"))
+    return descriptor
+
+
+@pytest.fixture
+def makePacket():
+    packet = Packet()
+    return packet
+
+
+def test_descriptorFoundFirst(makeDescriptor, makePacket):
+    makePacket.set("tone", "12345")
+    makePacket = makeDescriptor.doWork(makePacket)
+    assert makePacket.get("description") == "Test 12345"
+
+
+def test_descriptorFoundSecond(makeDescriptor, makePacket):
+    makePacket.set("tone", "23456")
+    makePacket = makeDescriptor.doWork(makePacket)
+    assert makePacket.get("description") == "Test 23456"
+
+
+def test_descriptorNotFound(makeDescriptor, makePacket):
+    makePacket.set("tone", "99999")
+    makePacket = makeDescriptor.doWork(makePacket)
+    assert makePacket.get("description") == "99999"
diff --git a/test/pytest.ini b/test/pytest.ini
index 6e8fc02..e5d4311 100644
--- a/test/pytest.ini
+++ b/test/pytest.ini
@@ -8,7 +8,7 @@
 #                     by Bastian Schroll
 
 [pytest]
-addopts = -v --pep8 --flakes --cov=boswatch/ --cov-report=term-missing --log-level=CRITICAL
+addopts = -v --pep8 --flakes --cov=boswatch/ --cov=module/ --cov plugin/ --cov-report=term-missing --log-level=CRITICAL
 
 # classic or progress
 console_output_style = progress 
diff --git a/test/test_config.yaml b/test/test_config.yaml
index 6840f26..f20f454 100644
--- a/test/test_config.yaml
+++ b/test/test_config.yaml
@@ -30,3 +30,12 @@ list1:
     - two
     - three
   - string1
+
+descriptor_test:
+  - scanField: tone
+    descrField: description
+    descriptions:
+      - for: 12345
+        add: Test 12345
+      - for: 23456
+        add: Test 23456
\ No newline at end of file