Begun writing UniqID tests

tests/datahandlers/test_uniqid.py

@@ -0,0 +1,32 @@
+import unittest
+from unittest import mock 
+from unittest.mock import patch
+
+import leapi_dyncode as dyncode
+
+from lodel.leapi.datahandlers.datas import UniqID
+from lodel.plugins.dummy_datasource.datasource import DummyDatasource
+
+
+class UniqIDTestCase(unittest.TestCase):
+    
+    def test_construct_data_sets_new_uid_if_none(self):
+        sent_uid = None
+        mocked_returned_uid = 987654321
+        
+        with patch.object(DummyDatasource, 'new_numeric_id', return_value=mocked_returned_uid) as mock_method:
+            returned_uid = UniqID.construct_data(UniqID, dyncode.Object, 'lodel_id', '', sent_uid)
+            
+            mock_method.assert_called_once_with(dyncode.Object)
+            self.assertEqual(returned_uid, mocked_returned_uid)
+            
+    def test_construct_data_returns_already_set_uid(self):
+        sent_uid = 123456789
+        mocked_returned_uid = 987654321
+        
+        with patch.object(DummyDatasource, 'new_numeric_id', return_value=mocked_returned_uid) as mock_method:
+            returned_uid = UniqID.construct_data(UniqID, dyncode.Object, '', '', sent_uid)
+
+            self.assertEqual(returned_uid, sent_uid)
+            mock_method.assert_not_called()     
+