L2SS-1030: add integration test

tangostationcontrol/tangostationcontrol/integration_test/default/devices/test_device_configuration.py

@@ -22,3 +22,8 @@ class TestDeviceConfiguration(AbstractTestBases.TestDeviceBase):
         dbdata = json.loads(tangodb_properties)
         self.assertTrue(type(dbdata), dict)
         self.assertGreater(len(dbdata['servers']), 0)
+        # Verify if Configuration Device exists
+        self.assertTrue('configuration' in dbdata['servers']) # server-name
+        self.assertTrue('stat' in dbdata['servers']['configuration']) # server-instance
+        self.assertTrue('configuration' in dbdata['servers']['configuration']['stat']) # server-class
+        self.assertTrue('stat/configuration/1' in dbdata['servers']['configuration']['stat']['configuration']) # device