test/fake-tmux.sh
#!/bin/bash
set -u
case "${1:-}" in
list-panes) printf '%%fixture\n' ;;
capture-pane) printf 'Server is temporarily limiting requests\n' ;;
send-keys) printf '%s\n' "$*" >>"${FAKE_TMUX_LOG:?}" ;;
*) exit 1 ;;
esac