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-rw-r--r--openstack/common/jsonutils.py2
-rw-r--r--tests/unit/test_jsonutils.py18
2 files changed, 19 insertions, 1 deletions
diff --git a/openstack/common/jsonutils.py b/openstack/common/jsonutils.py
index 6130a7f..e8e14c4 100644
--- a/openstack/common/jsonutils.py
+++ b/openstack/common/jsonutils.py
@@ -107,7 +107,7 @@ def to_primitive(value, convert_instances=False, level=0):
elif hasattr(value, 'iteritems'):
return to_primitive(dict(value.iteritems()),
convert_instances=convert_instances,
- level=level)
+ level=level + 1)
elif hasattr(value, '__iter__'):
return to_primitive(list(value), level)
elif convert_instances and hasattr(value, '__dict__'):
diff --git a/tests/unit/test_jsonutils.py b/tests/unit/test_jsonutils.py
index fe25697..46b5b36 100644
--- a/tests/unit/test_jsonutils.py
+++ b/tests/unit/test_jsonutils.py
@@ -95,6 +95,24 @@ class ToPrimitiveTestCase(unittest.TestCase):
p = jsonutils.to_primitive(x)
self.assertEquals(p, {'a': 1, 'b': 2, 'c': 3})
+ def test_iteritems_with_cycle(self):
+ class IterItemsClass(object):
+ def __init__(self):
+ self.data = dict(a=1, b=2, c=3)
+ self.index = 0
+
+ def iteritems(self):
+ return self.data.items()
+
+ x = IterItemsClass()
+ x2 = IterItemsClass()
+ x.data['other'] = x2
+ x2.data['other'] = x
+
+ # If the cycle isn't caught, to_primitive() will eventually result in
+ # an exception due to excessive recursion depth.
+ p = jsonutils.to_primitive(x)
+
def test_instance(self):
class MysteryClass(object):
a = 10