From e63066cfed27511c9b786d61761f87f7a532571a Mon Sep 17 00:00:00 2001
From: Nikita Sobolev <mail@sobolevn.me>
Date: Sat, 8 Jan 2022 06:51:51 +0300
Subject: bpo-46299: improve `test_descr.py` with stricter error handling
 (GH-30471)

---
 Lib/test/test_descr.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index a4131be..e8ecacb 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -2545,10 +2545,8 @@ order (MRO) for bases """
         m2instance.b = 2
         m2instance.a = 1
         self.assertEqual(m2instance.__dict__, "Not a dict!")
-        try:
+        with self.assertRaises(TypeError):
             dir(m2instance)
-        except TypeError:
-            pass
 
         # Two essentially featureless objects, (Ellipsis just inherits stuff
         # from object.
@@ -4066,7 +4064,7 @@ order (MRO) for bases """
         except TypeError:
             pass
         else:
-            assert 0, "best_base calculation found wanting"
+            self.fail("best_base calculation found wanting")
 
     def test_unsubclassable_types(self):
         with self.assertRaises(TypeError):
@@ -4452,6 +4450,8 @@ order (MRO) for bases """
             print("Oops!")
         except RuntimeError:
             pass
+        else:
+            self.fail("Didn't raise RuntimeError")
         finally:
             sys.stdout = test_stdout
 
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