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// Copyright (C) 2019-2021 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package network
import (
"testing"
"time"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/stretchr/testify/require"
)
// for two node network, check that B can ping A and get a reply
func TestPing(t *testing.T) {
partitiontest.PartitionTest(t)
netA := makeTestWebsocketNode(t)
netA.config.GossipFanout = 1
netA.config.PeerPingPeriodSeconds = 5
netA.Start()
defer func() { t.Log("stopping A"); netA.Stop(); t.Log("A done") }()
netB := makeTestWebsocketNode(t)
netB.config.GossipFanout = 1
netB.config.PeerPingPeriodSeconds = 5
addrA, postListen := netA.Address()
require.True(t, postListen)
t.Log(addrA)
netB.phonebook = MakePhonebook(1, 1*time.Millisecond)
netB.phonebook.ReplacePeerList([]string{addrA}, "default", PhoneBookEntryRelayRole)
netB.Start()
defer func() { t.Log("stopping B"); netB.Stop(); t.Log("B done") }()
readyTimeout := time.NewTimer(2 * time.Second)
waitReady(t, netA, readyTimeout.C)
t.Log("a ready")
waitReady(t, netB, readyTimeout.C)
t.Log("b ready")
bpeers := netB.GetPeers(PeersConnectedOut)
require.Equal(t, 1, len(bpeers))
peer := bpeers[0].(*wsPeer)
prePing := time.Now()
peer.sendPing()
const waitStep = 10 * time.Millisecond
for i := 1; i <= 100; i++ {
time.Sleep(waitStep)
_, lastPingRoundTripTime := peer.pingTimes()
if lastPingRoundTripTime > 0 {
postPing := time.Now()
testTime := postPing.Sub(prePing)
if lastPingRoundTripTime < testTime {
// success
return
}
t.Fatalf("ping came back with bogus time %s after %s test waiting", lastPingRoundTripTime, testTime)
}
}
t.FailNow()
}
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