Add some more tests for recent stuff.

regress/screen-redraw-scrollbars-auto-hide.sh

@@ -0,0 +1,96 @@
+#!/bin/sh
+
+# Auto-hide scrollbars appear on activity or pointer hover, then disappear
+# after pane-scrollbars-timeout. Compare captures of the same copy-mode view so
+# only the overlay scrollbar changes.
+
+PATH=/bin:/usr/bin
+TERM=screen
+LC_ALL=C.UTF-8
+export PATH TERM LC_ALL
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+OUTER="$TEST_TMUX -LtestA$$ -f/dev/null"
+INNER="$TEST_TMUX -LtestB$$ -f/dev/null"
+DIR=$(mktemp -d) || exit 1
+HIDDEN=$DIR/hidden
+VISIBLE=$DIR/visible
+AFTER=$DIR/after
+
+fail()
+{
+	echo "$*" >&2
+	exit 1
+}
+
+cleanup()
+{
+	$OUTER kill-server 2>/dev/null
+	$INNER kill-server 2>/dev/null
+	rm -rf "$DIR"
+}
+trap cleanup 0 1 15
+
+capture()
+{
+	$OUTER capture-pane -pe -t outer:0.0 >"$1" || exit 1
+}
+
+wait_for_client()
+{
+	i=0
+	while [ "$i" -lt 50 ]; do
+		$INNER list-clients 2>/dev/null | grep -q . && return 0
+		sleep 0.1
+		i=$((i + 1))
+	done
+	fail "inner client did not attach"
+}
+
+$INNER new-session -d -s inner -x40 -y12 \
+	"sh -c 'seq 50; exec sleep 100'" || exit 1
+$INNER set-option -g status off || exit 1
+$INNER set-option -g window-size manual || exit 1
+$INNER set-option -g mouse on || exit 1
+$INNER set-window-option pane-scrollbars auto-hide || exit 1
+$INNER set-window-option pane-scrollbars-timeout 300 || exit 1
+$INNER set-window-option pane-scrollbars-style \
+	'bg=colour196,fg=colour231,width=1,pad=0' || exit 1
+
+$OUTER new-session -d -s outer -x40 -y12 "$INNER attach -t inner" || exit 1
+$OUTER set-option -g status off || exit 1
+$OUTER set-option -g window-size manual || exit 1
+wait_for_client
+
+# Enter copy mode and choose a stable view. The initial show timer is allowed
+# to expire before taking the hidden reference capture.
+$INNER copy-mode -H || exit 1
+$INNER send-keys -X history-top || exit 1
+sleep 0.7
+capture "$HIDDEN"
+
+# A copy-mode page movement shows the overlay and starts its timer. Capture
+# that view immediately, then again after the timeout without moving it.
+$INNER send-keys -X page-down || exit 1
+sleep 0.1
+capture "$VISIBLE"
+sleep 0.7
+capture "$AFTER"
+cmp -s "$VISIBLE" "$AFTER" && fail "scrollbar did not hide after timeout"
+
+# Use the post-movement hidden scene as the reference for pointer hover. SGR
+# mouse column 40 is the right-hand scrollbar; moving to column 5 restarts the
+# timer without changing the copy-mode view.
+cp "$AFTER" "$HIDDEN"
+hover=$(printf '\033[<35;40;5M')
+$OUTER send-keys -l "$hover" || exit 1
+sleep 0.1
+capture "$VISIBLE"
+cmp -s "$HIDDEN" "$VISIBLE" && fail "scrollbar did not appear on hover"
+away=$(printf '\033[<35;5;5M')
+$OUTER send-keys -l "$away" || exit 1
+sleep 0.7
+capture "$AFTER"
+cmp -s "$HIDDEN" "$AFTER" || fail "scrollbar did not hide after hover"
+
+exit 0