From de0c3e0a78992c47b28bb024444d857c2bd907a6 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Fri, 16 Oct 2026 13:17:24 +0100
Subject: [PATCH] Test for 5756 from Alejandro Pacheco.

---
 regress/copy-mode-search-mark-end-of-line.sh | 41 ++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 regress/copy-mode-search-mark-end-of-line.sh

diff --git a/regress/copy-mode-search-mark-end-of-line.sh b/regress/copy-mode-search-mark-end-of-line.sh
new file mode 100644
index 000000000..b0d431b13
--- /dev/null
+++ b/regress/copy-mode-search-mark-end-of-line.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# Search match with the copy mode cursor after the last column.
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -f/dev/null -Ltest$$"
+$TMUX kill-server 2>/dev/null
+
+cleanup()
+{
+	$TMUX kill-server 2>/dev/null
+}
+trap cleanup 0 1 15
+
+# $1 is the text of each line, $2 the expected match.
+check()
+{
+	$TMUX kill-server 2>/dev/null
+	$TMUX new -d -x20 -y5 "printf '$1%.0s' 1 2 3 4 5; cat" || exit 1
+	sleep 1
+	$TMUX set -g mode-keys vi || exit 1
+	$TMUX copy-mode || exit 1
+	$TMUX send -X begin-selection || exit 1
+	$TMUX send -X rectangle-on || exit 1
+	$TMUX send -X search-backward a || exit 1
+	$TMUX send -X bottom-line || exit 1
+	$TMUX send -X end-of-line || exit 1
+
+	out=$($TMUX display -p '#{copy_cursor_x} #{search_present}') || exit 1
+	[ "$out" = "20 1" ] || exit 1
+	out=$($TMUX display -p '#{search_match}') || exit 1
+	[ "$out" = "$2" ] || exit 1
+}
+
+check aaaaaaaaaaaaaaaaaaaa a
+check aaaaaaaaaaaaaaaaaaab ""
+
+exit 0