From: Pieter Eendebak <pieter.eendebak@gmail.com>
Date: Tue, 2 Sep 2025 16:42:12 +0000 (+0200)
Subject: gh-136599: Add tests for long_hash (#138335)
X-Git-Tag: v3.15.0a1~533
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2d3711dc06657e072a83b580636cbb0009658636;p=thirdparty%2FPython%2Fcpython.git

gh-136599: Add tests for long_hash (#138335)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
---

diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py
index f336d49fa4f0..d63bc19ed9c9 100644
--- a/Lib/test/test_long.py
+++ b/Lib/test/test_long.py
@@ -1693,5 +1693,21 @@ class LongTest(unittest.TestCase):
         # GH-117195 -- This shouldn't crash
         object.__sizeof__(1)
 
+    def test_hash(self):
+        # gh-136599
+        self.assertEqual(hash(-1), -2)
+        self.assertEqual(hash(0), 0)
+        self.assertEqual(hash(10), 10)
+
+        self.assertEqual(hash(sys.hash_info.modulus - 2), sys.hash_info.modulus - 2)
+        self.assertEqual(hash(sys.hash_info.modulus - 1), sys.hash_info.modulus - 1)
+        self.assertEqual(hash(sys.hash_info.modulus), 0)
+        self.assertEqual(hash(sys.hash_info.modulus + 1), 1)
+
+        self.assertEqual(hash(-sys.hash_info.modulus - 2), -2)
+        self.assertEqual(hash(-sys.hash_info.modulus - 1), -2)
+        self.assertEqual(hash(-sys.hash_info.modulus), 0)
+        self.assertEqual(hash(-sys.hash_info.modulus + 1), -sys.hash_info.modulus + 1)
+
 if __name__ == "__main__":
     unittest.main()