From 4bf2d1419434fc6980828429c82cc5a8f570fc11 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C3=A9n=C3=A9dikt=20Tran?=
 <10796600+picnixz@users.noreply.github.com>
Date: Fri, 23 Oct 2026 12:59:23 -0700
Subject: [PATCH] gh-140036: Test modulo and divmod of pure Python Decimal in
 unbounded contexts

Check that `%` and `divmod()` stay fast when the context precision is
`MAX_PREC`, as `//` already is.
---
 Lib/test/test_decimal.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py
index 6d68ba456fcdf8..424d3f577e9f87 100644
--- a/Lib/test/test_decimal.py
+++ b/Lib/test/test_decimal.py
@@ -4769,6 +4769,16 @@ def test_divide_unbound_context(self):
             x = self.decimal.Decimal('1')
             y = x // 1  # should be fast
 
+    def test_modulo_unbound_context(self):
+        with self.unbound_context() as c:
+            x = self.decimal.Decimal('1')
+            y = x % 1  # should be fast
+
+    def test_divmod_unbound_context(self):
+        with self.unbound_context() as c:
+            x = self.decimal.Decimal('1')
+            y = divmod(x, 1)  # should be fast
+
     def test_remainder_near(self):
         L = 1000
         limit = sys.get_int_max_str_digits()