Add LazyStub.factory_parent (See #55).

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/test_containers.py b/tests/test_containers.py
index 70ed885..75e3237 100644
--- a/tests/test_containers.py
+++ b/tests/test_containers.py
@@ -68,6 +68,16 @@ class LazyStubTestCase(unittest.TestCase):
             containers=())
         self.assertEqual(2, stub.one)
 
+    def test_access_parent(self):
+        """Test simple access to a stub' parent."""
+        o1 = containers.LazyStub({'rank': 1})
+        o2 = containers.LazyStub({'rank': 2}, (o1,))
+        stub = containers.LazyStub({'rank': 3}, (o2, o1))
+
+        self.assertEqual(3, stub.rank)
+        self.assertEqual(2, stub.factory_parent.rank)
+        self.assertEqual(1, stub.factory_parent.factory_parent.rank)
+
     def test_cyclic_definition(self):
         class LazyAttr(containers.LazyValue):
             def __init__(self, attrname):