test importation/exportation with persistent storage

test/test_storage.py

@@ -300,3 +300,31 @@ def test_two_different_information():
 
         delete_session('test_persistent')
         delete_session('test_persistent2')
+
+
+def test_exportation_importation():
+    b = BoolOption('b', '')
+    o = OptionDescription('od', '', [b])
+    try:
+        c = Config(o, session_id='test_persistent', persistent=True)
+        d = Config(o, session_id='test_persistent2', persistent=True)
+    except ValueError:
+        # storage is not persistent
+        pass
+    else:
+        assert c.option('b').value.get() is None
+        c.option('b').value.set(True)
+        assert c.option('b').value.get() is True
+        del c
+        #
+        c = Config(o, session_id='test_persistent', persistent=True)
+        assert c.value.exportation() == [['b'], [None], [True], ['user']]
+        d.value.importation(c.value.exportation())
+        assert c.value.exportation() == [['b'], [None], [True], ['user']]
+        assert d.value.exportation() == [['b'], [None], [True], ['user']]
+        del d
+        #
+        d = Config(o, session_id='test_persistent2', persistent=True)
+        assert d.value.exportation() == [['b'], [None], [True], ['user']]
+        delete_session('test_persistent')
+        delete_session('test_persistent2')