set -euo pipefail

openbox --sm-disable > /tmp/orca-e2e-window-manager.log 2>&1 &

wm_pid=$!

cleanup() {

kill "$wm_pid" 2>/dev/null || true

wait "$wm_pid" 2>/dev/null || true

}

trap cleanup EXIT

ready=false

for attempt in {1..100}; do

if xprop -root _NET_SUPPORTING_WM_CHECK 2>/dev/null | rg -q 'window id # 0x[1-9a-fA-F]'; then

ready=true

break

fi

if ! kill -0 "$wm_pid" 2>/dev/null; then

cat /tmp/orca-e2e-window-manager.log

exit 1

fi

sleep 0.1

if [ "$ready" != true ]; then

echo 'Window manager did not acquire the Xvfb root window' >&2

exit 1