tendermint/test/p2p/fast_sync/test.sh

#! /bin/bash
set -eu
set -o pipefail

###############################################################
# for each peer:
# 	kill peer
# 	bring it back online via fast sync
# 	check app hash
###############################################################

ID=$1

addr=$(test/p2p/ip.sh $ID):46657
peerID=$(( $(($ID % 4)) + 1  )) # 1->2 ... 3->4 ... 4->1
peer_addr=$(test/p2p/ip.sh $peerID):46657

# get another peer's height
h1=`curl -s $peer_addr/status | jq .result[1].latest_block_height`

# get another peer's state
root1=`curl -s $peer_addr/status | jq .result[1].latest_app_hash`

echo "Other peer is on height $h1 with state $root1"
echo "Waiting for peer $ID to catch up"

# wait for it to sync to past its previous height
set +e
set +o pipefail
h2="0"
while [[ "$h2" -lt "$(($h1+3))" ]]; do
	sleep 1
	h2=`curl -s $addr/status | jq .result[1].latest_block_height`
	echo "... $h2"
done

# check the app hash
root2=`curl -s $addr/status | jq .result[1].latest_app_hash`

if [[ "$root1" != "$root2" ]]; then
	echo "App hash after fast sync does not match. Got $root2; expected $root1"
	exit 1
fi
echo "... fast sync successful"