commit 53663a695ef2bb96ac0252cd4cc4aa40d4f953be
author Nick Coghlan <ncoghlan@gmail.com> Tue Jul 15 14:27:37 2008 +0000
committer Nick Coghlan <ncoghlan@gmail.com> Tue Jul 15 14:27:37 2008 +0000
tree e241ef71b353f8b3162179b1eed5a3f4eaae0c5f
parent 9ace15ca25e1e72e1b943190a5f4efbd7d118de3

Issue 2235: __hash__ is once again inherited by default, but inheritance can be blocked explicitly so that collections.Hashable remains meaningful

Lib/test/test_descr.py

diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 3c607f7..53b7611 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -3283,12 +3283,20 @@
         self.assertEqual(hash(d), 144)
         D.__hash__ = lambda self: 100
         self.assertEqual(hash(d), 100)
+        D.__hash__ = None
+        self.assertRaises(TypeError, hash, d)
         del D.__hash__
         self.assertEqual(hash(d), 144)
+        B.__hash__ = None
+        self.assertRaises(TypeError, hash, d)
         del B.__hash__
         self.assertEqual(hash(d), 314)
+        C.__hash__ = None
+        self.assertRaises(TypeError, hash, d)
         del C.__hash__
         self.assertEqual(hash(d), 42)
+        A.__hash__ = None
+        self.assertRaises(TypeError, hash, d)
         del A.__hash__
         self.assertEqual(hash(d), orig_hash)
         d.foo = 42