go-libp2p-kad-dht/dht_bootstrap_test.go
2020-03-27 15:59:02 +05:30

46 lines
1.4 KiB
Go

package dht
import (
"context"
ma "github.com/multiformats/go-multiaddr"
"testing"
"time"
kb "github.com/libp2p/go-libp2p-kbucket"
"github.com/stretchr/testify/require"
)
func TestSelfWalkOnAddressChange(t *testing.T) {
ctx := context.Background()
// create three DHT instances with auto refresh disabled
d1 := setupDHT(ctx, t, false, DisableAutoRefresh())
d2 := setupDHT(ctx, t, false, DisableAutoRefresh())
d3 := setupDHT(ctx, t, false, DisableAutoRefresh())
var connectedTo *IpfsDHT
// connect d1 to whoever is "further"
if kb.CommonPrefixLen(kb.ConvertPeerID(d1.self), kb.ConvertPeerID(d2.self)) <=
kb.CommonPrefixLen(kb.ConvertPeerID(d1.self), kb.ConvertPeerID(d3.self)) {
connect(t, ctx, d1, d3)
connectedTo = d3
} else {
connect(t, ctx, d1, d2)
connectedTo = d2
}
// then connect d2 AND d3
connect(t, ctx, d2, d3)
// d1 should have ONLY 1 peer in it's RT
waitForWellFormedTables(t, []*IpfsDHT{d1}, 1, 1, 2*time.Second)
require.Equal(t, connectedTo.self, d1.routingTable.ListPeers()[0])
// now change the listen address so and event is emitted and we do a self walk
require.NoError(t, d1.host.Network().Listen(ma.StringCast("/ip4/0.0.0.0/tcp/1234")))
require.True(t, waitForWellFormedTables(t, []*IpfsDHT{d1}, 2, 2, 20*time.Second))
// it should now have both peers in the RT
ps := d1.routingTable.ListPeers()
require.Contains(t, ps, d2.self)
require.Contains(t, ps, d3.self)
}