added vocabulary update test

pybis/src/python/tests/test_vocabulary.py

@@ -19,19 +19,24 @@ def test_create_delete_vocabulay_terms(openbis_instance):
             { "code": 'term_code1', "label": "term_label1", "description": "term_description1"},
             { "code": 'term_code2', "label": "term_label2", "description": "term_description2"},
             { "code": 'term_code3', "label": "term_label3", "description": "term_description3"}
-        ]   
+        ],
+        chosenFromList = False
     )
     assert voc.registrationDate is None
     voc.save()
     assert voc is not None
     assert voc.registrationDate is not None
+    assert voc.chosenFromList is False
     
     voc_exists = o.get_vocabulary(voc_code)
     assert voc_exists is not None
     assert voc_exists.code == voc_code.upper()
 
+    voc.description = 'description changed'
+    voc.chosenFromList = True
+    voc.save()
+
+    assert voc.description == 'description changed'
+    assert voc.chosenFromList is True
+
     voc.delete('test on '+str(timestamp))
-    
-    with pytest.raises(ValueError):
-        voc_exists = o.get_vocabulary(voc_code)
-        assert 1 == 0