patch 9.0.1129: sporadic Test_range() failure Commit: https://github.com/vim/vim/commit/7bdcba08bb5e4c39093cdedee187177d705c7cb9 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 2 11:59:26 2023 +0000 patch 9.0.1129: sporadic Test_range() failure Problem: Sporadic Test_range() failure. Solution: Clear typeahead. Move to a separate function. (issue https://github.com/vim/vim/issues/22771)

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service