#1713041: fix pprint's handling of maximum depth.

1 files changed, 15 insertions, 0 deletions

diff --git a/Lib/test/test_pprint.py b/Lib/test/test_pprint.py
index 83c772b5b0..4d7a3ed147 100644
--- a/Lib/test/test_pprint.py
+++ b/Lib/test/test_pprint.py
@@ -387,6 +387,21 @@ class QueryTestCase(unittest.TestCase):
         cubo = test.test_set.linegraph(cube)
         self.assertEqual(pprint.pformat(cubo), cubo_repr_tgt)
 
+    def test_depth(self):
+        nested_tuple = (1, (2, (3, (4, (5, 6)))))
+        nested_dict = {1: {2: {3: {4: {5: {6: 6}}}}}}
+        nested_list = [1, [2, [3, [4, [5, [6, []]]]]]]
+        self.assertEqual(pprint.pformat(nested_tuple), repr(nested_tuple))
+        self.assertEqual(pprint.pformat(nested_dict), repr(nested_dict))
+        self.assertEqual(pprint.pformat(nested_list), repr(nested_list))
+
+        lv1_tuple = '(1, (...))'
+        lv1_dict = '{1: {...}}'
+        lv1_list = '[1, [...]]'
+        self.assertEqual(pprint.pformat(nested_tuple, depth=1), lv1_tuple)
+        self.assertEqual(pprint.pformat(nested_dict, depth=1), lv1_dict)
+        self.assertEqual(pprint.pformat(nested_list, depth=1), lv1_list)
+
 
 class DottedPrettyPrinter(pprint.PrettyPrinter):