From b46684427ffbc1c20686731ef01beeaec0ba53f1 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Fri, 17 Jul 2026 09:37:32 +0100
Subject: [PATCH] Extend control client size test.

---
 regress/control-client-size.sh | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/regress/control-client-size.sh b/regress/control-client-size.sh
index 3099b873f..140b0068f 100644
--- a/regress/control-client-size.sh
+++ b/regress/control-client-size.sh
@@ -1,8 +1,9 @@
 #!/bin/sh
 
 # 947
-# size in control mode should change after refresh-client -C, and -x and -y
-# should work without -d for control clients
+# size in control mode should change after refresh-client -C, per-window
+# control client sizes should work, and -x and -y should work without -d for
+# control clients
 
 PATH=/bin:/usr/bin
 TERM=screen
@@ -47,4 +48,21 @@ $TMUX ls -F':#{window_width} #{window_height}' >>$OUT
 printf ":100 50\n:80 24\n"|cmp -s $OUT - || exit 1
 $TMUX kill-server 2>/dev/null
 
+TMUX="$TEST_TMUX -LtestA$$-4 -f/dev/null"
+$TMUX -f/dev/null new -d || exit 1
+$TMUX neww || exit 1
+w0=$($TMUX display -p -t :0 '#{window_id}')
+w1=$($TMUX display -p -t :1 '#{window_id}')
+cat <<EOF|$TMUX -f/dev/null -C a >$TMP
+refresh -C 80,24
+refresh -C ${w0}:40x10
+display -p -t ${w0} 'w0 #{window_width} #{window_height}'
+display -p -t ${w1} 'w1 #{window_width} #{window_height}'
+refresh -C ${w0}:
+display -p -t ${w0} 'w0c #{window_width} #{window_height}'
+EOF
+grep ^w $TMP >$OUT
+printf "w0 40 10\nw1 80 24\nw0c 80 24\n"|cmp -s $OUT - || exit 1
+$TMUX kill-server 2>/dev/null
+
 exit 0