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fix(hydra): test flakiness: OutsideValidityIntervalUTxO #502

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Merged
michalrus merged 1 commit into from
Mar 31, 2026
+31 −13
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fix(hydra): test flakiness: OutsideValidityIntervalUTxO #502

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44 changes: 31 additions & 13 deletions nix/internal/hydra-blockfrost-test.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -502,28 +502,46 @@ done

# ---------------------------------------------------------------------------- #

invalidity_period=$(((2 + 1) * CONTESTATION_PERIOD_SECONDS))
log info "Waiting for ‘readyToFanoutSent’ on ‘Closed’ head"

log info "Waiting ${invalidity_period}s for validity period before fan-out"
# XXX: otherwise, when simply sleeping for `(n+1)*CONTESTATION_PERIOD_SECONDS`
# we sometimes hit `OutsideValidityIntervalUTxO`:

sleep "$invalidity_period"
while true; do
sleep 3
head_json=$(curl -fsSL http://127.0.0.1:"${hydra_api_port["alice"]}"/head)
status=$(echo "$head_json" | jq -r .tag)
ready=$(echo "$head_json" | jq -r '.contents.readyToFanoutSent // false')
log info "Waiting for ‘readyToFanoutSent’ on ‘Closed’ head; head status: $status; ‘readyToFanoutSent’: $ready"
if [ "$status" == "Closed" ] && [ "$ready" == "true" ]; then
break
fi
done

# ---------------------------------------------------------------------------- #

log info "Requesting fan-out"

{
echo '{"tag":"Fanout"}'
sleep 2 # Otherwise: `Warp: Client closed connection prematurely`.
} | websocat ws://127.0.0.1:"${hydra_api_port["alice"]}"/
# XXX: even though the head is in `FanoutPossible`, the `Fanout` transaction has
# an `invalidBefore` slot constraint equal to the on-chain contestation
# deadline. Due to slot-lag (chain tip can be a few slots behind wall-clock
# time), the Cardano node may reject the tx with `OutsideValidityIntervalUTxO`,
# so let’s retry:

while true; do
sleep 3
status=$(curl -fsSL http://127.0.0.1:"${hydra_api_port["alice"]}"/head | jq -r .tag)
log info "Waiting for ‘Idle’; head status: $status"
if [ "$status" == "Idle" ]; then
break
fi
{
echo '{"tag":"Fanout"}'
sleep 2 # Otherwise: `Warp: Client closed connection prematurely`.
} | websocat ws://127.0.0.1:"${hydra_api_port["alice"]}"/

for _ in {1..10}; do
sleep 3
status=$(curl -fsSL http://127.0.0.1:"${hydra_api_port["alice"]}"/head | jq -r .tag)
log info "Waiting for 'Idle'; head status: $status"
if [ "$status" == "Idle" ]; then
break 2
fi
done
done

# ---------------------------------------------------------------------------- #
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