1 files changed, 25 insertions, 0 deletions
diff --git a/Lib/test/leakers/test_tee.py b/Lib/test/leakers/test_tee.py
new file mode 100644
index 0000000000..f0aa444662
--- /dev/null
+++ b/Lib/test/leakers/test_tee.py
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+
+# Test case taken from test_generators
+# See http://mail.python.org/pipermail/python-dev/2005-November/058339.html
+
+from itertools import tee
+import gc
+
+def leak():
+  def inner():
+    def fib():
+        def yield_identity_forever(g):
+            while 1:
+                yield g
+        def _fib():
+            for i in yield_identity_forever(head):
+                yield i
+        head, tail, result = tee(_fib(), 3)
+        return result
+
+    x = fib()
+    x.next()
+  inner()
+  gc.collect() ; gc.collect()
+  # this is expected to return 0
+  return gc.collect()