From 05d0fcd13ea0defd9cdb5c4982b895bf0094dfd7 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Wed, 7 Apr 2021 16:57:39 -0700
Subject: Fix broken test for MutableSet.pop() (GH-25209) (GH-25270)

---
 Lib/test/test_collections.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index 58f65f3..a961821 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -1423,8 +1423,12 @@ class TestCollectionABCs(ABCTestCase):
                 return result
             def __repr__(self):
                 return "MySet(%s)" % repr(list(self))
-        s = MySet([5,43,2,1])
-        self.assertEqual(s.pop(), 1)
+        items = [5,43,2,1]
+        s = MySet(items)
+        r = s.pop()
+        self.assertEquals(len(s), len(items) - 1)
+        self.assertNotIn(r, s)
+        self.assertIn(r, items)
 
     def test_issue8750(self):
         empty = WithSet()
-- 
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