From edc8f1366af2d32882649647a7a79873a6cb9503 Mon Sep 17 00:00:00 2001
From: Neal Norwitz <nnorwitz@gmail.com>
Date: Tue, 28 Feb 2006 19:02:05 +0000
Subject: [PATCH] Add directory which contains known ref leaks.  Some of these
 are likely to be system dependent (like test_gestalt).

---
 Lib/test/leakers/README          | 18 ++++++++++++++++++
 Lib/test/leakers/__init__.py     |  0
 Lib/test/leakers/test_gestalt.py | 15 +++++++++++++++
 Lib/test/leakers/test_tee.py     | 19 +++++++++++++++++++
 4 files changed, 52 insertions(+)
 create mode 100644 Lib/test/leakers/README
 create mode 100644 Lib/test/leakers/__init__.py
 create mode 100644 Lib/test/leakers/test_gestalt.py
 create mode 100644 Lib/test/leakers/test_tee.py

diff --git a/Lib/test/leakers/README b/Lib/test/leakers/README
new file mode 100644
index 00000000000..801ed9577a2
--- /dev/null
+++ b/Lib/test/leakers/README
@@ -0,0 +1,18 @@
+This directory contains test cases that are known to leak references.
+The idea is that you can import these modules while in the interpreter
+and call the leak function repeatedly.  This will only be helpful if
+the interpreter was built in debug mode.  If the total ref count
+doesn't increase, the bug has been fixed.
+
+Here's an example interpreter session for test_gestalt which still leaks:
+
+>>> from test.leakers.test_gestalt import leak
+[24275 refs]
+>>> leak()
+[28936 refs]
+>>> leak()
+[28938 refs]
+>>> leak()
+[28940 refs]
+>>> 
+
diff --git a/Lib/test/leakers/__init__.py b/Lib/test/leakers/__init__.py
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/Lib/test/leakers/test_gestalt.py b/Lib/test/leakers/test_gestalt.py
new file mode 100644
index 00000000000..f947fc516f1
--- /dev/null
+++ b/Lib/test/leakers/test_gestalt.py
@@ -0,0 +1,15 @@
+
+import sys
+
+if sys.platform != 'darwin':
+    raise ValueError, "This test only leaks on Mac OS X'
+
+def leak():
+    # taken from platform._mac_ver_lookup()
+    from gestalt import gestalt
+    import MacOS
+
+    try:
+        gestalt('sysu')
+    except MacOS.Error:
+        pass
diff --git a/Lib/test/leakers/test_tee.py b/Lib/test/leakers/test_tee.py
new file mode 100644
index 00000000000..4ce24cae30f
--- /dev/null
+++ b/Lib/test/leakers/test_tee.py
@@ -0,0 +1,19 @@
+
+# Test case taken from test_itertools
+# See http://mail.python.org/pipermail/python-dev/2005-November/058339.html
+
+from itertools import tee
+
+def leak():
+    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()