[Python-checkins] bpo-43981: Fix reference leaks in test_squeezer (GH-25758)

[pablogsal]

https://github.com/python/cpython/commit/6689e45dfee75d756c540ff0946ebf0ae8847f43
commit: 6689e45dfee75d756c540ff0946ebf0ae8847f43
branch: master
author: Pablo Galindo <Pablogsal at gmail.com>
committer: pablogsal <Pablogsal at gmail.com>
date: 2021-04-30T19:34:29+01:00
summary:

bpo-43981: Fix reference leaks in test_squeezer (GH-25758)

files:
A Misc/NEWS.d/next/IDLE/2021-04-30-17-59-56.bpo-43981.3EFl1H.rst
M Lib/idlelib/idle_test/test_squeezer.py

diff --git a/Lib/idlelib/idle_test/test_squeezer.py b/Lib/idlelib/idle_test/test_squeezer.py
index eaf81a5fc1a053..86c5d41b629719 100644
--- a/Lib/idlelib/idle_test/test_squeezer.py
+++ b/Lib/idlelib/idle_test/test_squeezer.py
@@ -311,6 +311,7 @@ def make_mock_squeezer(self):
         squeezer = Mock()
         squeezer.editwin.text = Text(root)
         squeezer.editwin.per = Percolator(squeezer.editwin.text)
+        self.addCleanup(squeezer.editwin.per.close)
 
         # Set default values for the configuration settings.
         squeezer.auto_squeeze_min_lines = 50
diff --git a/Misc/NEWS.d/next/IDLE/2021-04-30-17-59-56.bpo-43981.3EFl1H.rst b/Misc/NEWS.d/next/IDLE/2021-04-30-17-59-56.bpo-43981.3EFl1H.rst
new file mode 100644
index 00000000000000..10eb8b01d13a48
--- /dev/null
+++ b/Misc/NEWS.d/next/IDLE/2021-04-30-17-59-56.bpo-43981.3EFl1H.rst
@@ -0,0 +1 @@
+Fix reference leak in test_squeezer. Patch by Pablo Galindo
\ No newline at end of file