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-rw-r--r--Lib/test/test_dictviews.py15
-rw-r--r--Lib/test/test_ordered_dict.py14
2 files changed, 29 insertions, 0 deletions
diff --git a/Lib/test/test_dictviews.py b/Lib/test/test_dictviews.py
index 51ad9b3..2763cbf 100644
--- a/Lib/test/test_dictviews.py
+++ b/Lib/test/test_dictviews.py
@@ -1,6 +1,7 @@
import collections.abc
import copy
import pickle
+import sys
import unittest
class DictSetTest(unittest.TestCase):
@@ -202,6 +203,20 @@ class DictSetTest(unittest.TestCase):
def test_recursive_repr(self):
d = {}
d[42] = d.values()
+ r = repr(d)
+ # Cannot perform a stronger test, as the contents of the repr
+ # are implementation-dependent. All we can say is that we
+ # want a str result, not an exception of any sort.
+ self.assertIsInstance(r, str)
+ d[42] = d.items()
+ r = repr(d)
+ # Again.
+ self.assertIsInstance(r, str)
+
+ def test_deeply_nested_repr(self):
+ d = {}
+ for i in range(sys.getrecursionlimit() + 100):
+ d = {42: d.values()}
self.assertRaises(RecursionError, repr, d)
def test_copy(self):
diff --git a/Lib/test/test_ordered_dict.py b/Lib/test/test_ordered_dict.py
index 6bafb8b..20efe37 100644
--- a/Lib/test/test_ordered_dict.py
+++ b/Lib/test/test_ordered_dict.py
@@ -355,6 +355,20 @@ class OrderedDictTests:
self.assertEqual(repr(od),
"OrderedDict([('a', None), ('b', None), ('c', None), ('x', ...)])")
+ def test_repr_recursive_values(self):
+ OrderedDict = self.OrderedDict
+ od = OrderedDict()
+ od[42] = od.values()
+ r = repr(od)
+ # Cannot perform a stronger test, as the contents of the repr
+ # are implementation-dependent. All we can say is that we
+ # want a str result, not an exception of any sort.
+ self.assertIsInstance(r, str)
+ od[42] = od.items()
+ r = repr(od)
+ # Again.
+ self.assertIsInstance(r, str)
+
def test_setdefault(self):
OrderedDict = self.OrderedDict
pairs = [('c', 1), ('b', 2), ('a', 3), ('d', 4), ('e', 5), ('f', 6)]