From 04ace41fe2cf648be433503d0c336b154ad63a3b Mon Sep 17 00:00:00 2001
From: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
Date: Mon, 5 Jan 2026 22:46:08 +0100
Subject: [PATCH] gh-143394: filter for turning off automatic margins in
 test_no_newline (GH-143433)

---
 Lib/test/test_pyrepl/test_pyrepl.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index baf03ef6cd95..00dcbdc562ae 100644
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -1991,6 +1991,17 @@ class TestMain(ReplTestCase):
             safe_patterns.append(r'\x1b\[\?25[hl]')  # cursor visibility
             safe_patterns.append(r'\x1b\[\?12[hl]')  # cursor blinking
 
+        # rmam / smam - automatic margins
+        rmam = ti.get("rmam")
+        smam = ti.get("smam")
+        if rmam:
+            safe_patterns.append(re.escape(rmam.decode("ascii")))
+        if smam:
+            safe_patterns.append(re.escape(smam.decode("ascii")))
+        if not rmam and not smam:
+            safe_patterns.append(r'\x1b\[\?7l') # turn off automatic margins
+            safe_patterns.append(r'\x1b\[\?7h') # turn on automatic margins
+
         # Modern extensions not in standard terminfo - always use patterns
         safe_patterns.append(r'\x1b\[\?2004[hl]')  # bracketed paste mode
         safe_patterns.append(r'\x1b\[\?12[hl]')  # cursor blinking (may be separate)
-- 
2.47.3