L2SS-1030: create unittest for configuration

tangostationcontrol/tangostationcontrol/test/common/test_configuration.py

+# -*- coding: utf-8 -*-
+#
+# This file is part of the LOFAR 2.0 Station Software
+#
+#
+#
+# Distributed under the terms of the APACHE license.
+# See LICENSE.txt for more info.
+
+from tangostationcontrol.common.configuration import query_to_tuples, add_to_devices_dict, add_to_attrs_dict, add_to_server_dict
+
+from tangostationcontrol.test import base
+
+class TestDbDataConversion(base.TestCase):
+    def test_query_to_tuples(self):
+        """ Test whether Tango DB data are correctly converted into tuples """
+        raw_result = ['device1', 'property_name1', 'value1', 'device1', 'property_name2', 'value2']
+        num_col = 3
+        record1 = ('device1', 'property_name1', 'value1')
+        record2 = ('device1', 'property_name2', 'value2')
+        expected_result = [record1, record2]
+        self.assertEqual(query_to_tuples(raw_result, num_col), expected_result)
+    
+    def test_add_to_devices_dict(self):
+        """ Test whether data retrieved from DB are correctly inserted into devices dictionary """
+        data = [('device1', 'property_name1', 'value1'), ('device1', 'property_name2', 'value2')]
+        expected_result = {'device1': {'properties': {  'property_name1': ['value1'],
+                                                        'property_name2': ['value2']}}}
+        self.assertEqual(add_to_devices_dict({}, data), expected_result)
+
+    def test_add_to_attrs_dict(self):
+        """ Test whether data retrieved from DB are correctly inserted into attributes dictionary """
+        # Two attributes 
+        data_2attrs = [('device1', 'attribute1', 'attr_property_name1', 'value1'), 
+                ('device1', 'attribute2', 'attr_property_name1', 'value2')]
+        expected_result = {'device1': {'attribute_properties': {'attribute1': {'attr_property_name1': ['value1']},
+                                                                'attribute2': {'attr_property_name1': ['value2']}}}}
+        self.assertEqual(add_to_attrs_dict({}, data_2attrs), expected_result)
+        # One attribute, two property values
+        data_1attr = [('device1', 'attribute1', 'attr_property_name1', 'value1'), 
+                ('device1', 'attribute1', 'attr_property_name1', 'value2')]
+        expected_result = {'device1': {'attribute_properties': {'attribute1': 
+                                        {'attr_property_name1': ['value1','value2']}}}}
+        self.assertEqual(add_to_attrs_dict({}, data_1attr), expected_result)
+    
+    def test_add_to_server_dict(self):
+        """ Test whether data retrieved from DB are correctly inserted into server dictionary """
+        data = [('server_name/server_instance', 'server_class', 'device1')]
+        devices_dict = {'device1': {'properties': {  'property_name1': ['value1'],
+                                                     'property_name2': ['value2']}}}
+        expected_result = {'server_name': {'server_instance': {'server_class': 
+                            {'device1': {'properties': {'property_name1': ['value1'],
+                                                        'property_name2': ['value2']}}}}}}
+        self.assertEqual(add_to_server_dict({}, devices_dict, data), expected_result)