From bfb01dcb54c06c019fe8ec035b59df3790f562a1 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Fri, 16 Oct 2026 15:26:34 +0100
Subject: [PATCH] Test for 5757 from Alejandro Pacheco.

---
 regress/respawn-window-kill-panes.sh | 45 ++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100755 regress/respawn-window-kill-panes.sh

diff --git a/regress/respawn-window-kill-panes.sh b/regress/respawn-window-kill-panes.sh
new file mode 100755
index 000000000..745770465
--- /dev/null
+++ b/regress/respawn-window-kill-panes.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# respawn-window -k destroys every pane but the first, including the active
+# pane. The window must be left with the first pane active and must be drawn
+# again for an attached client. The terminal is a pane of a second server.
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest$$ -f/dev/null"
+TMUX2="$TEST_TMUX -Ltest2$$ -f/dev/null"
+trap '$TMUX kill-server 2>/dev/null; $TMUX2 kill-server 2>/dev/null' 0 1 15
+
+$TMUX new -d 'sleep 1000' || exit 1
+$TMUX2 new -d "unset TMUX; exec $TMUX attach" || exit 1
+n=0
+while [ -z "$($TMUX lsc 2>/dev/null)" ]; do
+	n=$((n + 1))
+	[ $n -gt 100 ] && exit 1
+	sleep 0.1
+done
+
+$TMUX splitw 'sleep 1000' || exit 1
+$TMUX splitw -h 'sleep 1000' || exit 1
+sleep 1
+$TMUX respawnw -k 'sleep 1000' || exit 1
+sleep 1
+$TMUX has || { echo "the server died"; exit 1; }
+[ "$($TMUX lsp -F '#{pane_index}:#{pane_active}')" = "0:1" ] || exit 1
+
+# The same with the window zoomed: it must be unzoomed and the window must
+# then be destroyed cleanly.
+$TMUX neww 'sleep 1000' || exit 1
+$TMUX splitw 'sleep 1000' || exit 1
+$TMUX resizep -Z || exit 1
+sleep 1
+$TMUX respawnw -k 'sleep 1000' || exit 1
+sleep 1
+[ "$($TMUX display -p '#{window_panes}:#{window_zoomed_flag}')" = "1:0" ] ||
+    exit 1
+$TMUX killw || exit 1
+sleep 1
+$TMUX has || { echo "the server died"; exit 1; }
+exit 0