Broke reference loops in tests added in issue #5700.
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index 56f4033..baa6965 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -577,6 +577,7 @@
self.assertTrue(f.closed)
self.assertTrue(closed) # flush() called
self.assertFalse(closed[0]) # flush() called before file closed
+ f.flush = lambda: None # break reference loop
def test_flush_error_on_close(self):
# raw file
@@ -786,6 +787,7 @@
self.assertTrue(closed) # flush() called
self.assertFalse(closed[0]) # flush() called before file closed
self.assertFalse(closed[1])
+ raw.flush = lambda: None # break reference loop
def test_close_error_on_close(self):
raw = self.MockRawIO()
@@ -2536,6 +2538,7 @@
self.assertTrue(closed) # flush() called
self.assertFalse(closed[0]) # flush() called before file closed
self.assertFalse(closed[1])
+ txt.flush = lambda: None # break reference loop
def test_multi_close(self):
txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")