Changeset 14006 for main/waeup.kofa/trunk/src/waeup

Timestamp:

2 Jul 2016, 17:10:46 (8 years ago)

Author:

uli

Message:

Example for usage of defaultFactory in ifaces.

This might help with empty lists as default values in interfaces.

File:

• main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_converters.py (modified) (3 diffs)

main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_converters.py

@@ -97 +97 @@
         value_type=ResultEntryField(),
         required=True,
-        #defaultFactory=list,
-        default=[],
+        defaultFactory=list
         )
     fav_colors = schema.List(
@@ -106 +105 @@
             ),
         required=True,
-        #defaultFactory=list
-        default=[],
+        defaultFactory=list
         )
     friends = schema.List(
@@ -142 +140 @@
     def getInterfaces(self):
         return implementedBy(Faculty)
+
+
+class TestContacts(unittest.TestCase):
+    # make sure the Contact class inhere works as expected
+
+    def test_default_lists_not_shared(self):
+        # 'grades' is a Contact property with empty list as default.
+        # Ensure lists are unique if set as default this test fails if
+        # `default` is set to empty list in interface.
+        c1 = Contact()
+        c2 = Contact()
+        c1.grades.append('foo')
+        self.assertTrue(hasattr(c2, 'grades'))
+        self.assertTrue(isinstance(c2.grades, list))
+        self.assertEqual(c2.grades, [])