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dialpolicy_test.go
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dialpolicy_test.go
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package autonat
import (
"context"
"errors"
"net"
"testing"
blankhost "github.com/libp2p/go-libp2p-blankhost"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/libp2p/go-libp2p-core/transport"
swarmt "github.com/libp2p/go-libp2p-swarm/testing"
"github.com/multiformats/go-multiaddr"
)
func makeMA(a string) multiaddr.Multiaddr {
addr, err := multiaddr.NewMultiaddr(a)
if err != nil {
panic(err)
}
return addr
}
type mockT struct {
ctx context.Context
addr multiaddr.Multiaddr
}
func (m *mockT) Dial(ctx context.Context, a multiaddr.Multiaddr, p peer.ID) (transport.CapableConn, error) {
return nil, nil
}
func (m *mockT) CanDial(_ multiaddr.Multiaddr) bool { return true }
func (m *mockT) Listen(a multiaddr.Multiaddr) (transport.Listener, error) {
return &mockL{m.ctx, m.addr}, nil
}
func (m *mockT) Protocols() []int { return []int{multiaddr.P_IP4} }
func (m *mockT) Proxy() bool { return false }
func (m *mockT) String() string { return "mock-tcp-ipv4" }
type mockL struct {
ctx context.Context
addr multiaddr.Multiaddr
}
func (l *mockL) Accept() (transport.CapableConn, error) {
<-l.ctx.Done()
return nil, errors.New("expected in mocked test")
}
func (l *mockL) Close() error { return nil }
func (l *mockL) Addr() net.Addr { return nil }
func (l *mockL) Multiaddr() multiaddr.Multiaddr { return l.addr }
func TestSkipDial(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
s := swarmt.GenSwarm(t)
d := dialPolicy{host: blankhost.NewBlankHost(s)}
if d.skipDial(makeMA("/ip4/8.8.8.8")) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipDial(makeMA("/ip6/2607:f8b0:400a::1")) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipDial(makeMA("/ip4/192.168.0.1")) != true {
t.Fatal("didn't skip dialing an internal addr")
}
s.AddTransport(&mockT{ctx, makeMA("/ip4/8.8.8.8")})
err := s.AddListenAddr(makeMA("/ip4/8.8.8.8"))
if err != nil {
t.Fatal(err)
}
if d.skipDial(makeMA("/ip4/8.8.8.8")) != true {
t.Fatal("failed dialing a valid host address")
}
}
func TestSkipPeer(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
s := swarmt.GenSwarm(t)
d := dialPolicy{host: blankhost.NewBlankHost(s)}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8")}) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/192.168.0.1")}) != true {
t.Fatal("succeeded with no public addr")
}
s.AddTransport(&mockT{ctx, makeMA("/ip4/8.8.8.8")})
err := s.AddListenAddr(makeMA("/ip4/8.8.8.8"))
if err != nil {
t.Fatal(err)
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != true {
t.Fatal("succeeded dialing host address")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/9.9.9.9")}) != true {
t.Fatal("succeeded dialing host address when other public")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/9.9.9.9")}) != false {
t.Fatal("succeeded dialing host address when other public")
}
}
func TestSkipLocalPeer(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
s := swarmt.GenSwarm(t)
d := dialPolicy{host: blankhost.NewBlankHost(s)}
s.AddTransport(&mockT{ctx, makeMA("/ip4/192.168.0.1")})
err := s.AddListenAddr(makeMA("/ip4/192.168.0.1"))
if err != nil {
t.Fatal(err)
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8")}) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != false {
t.Fatal("failed dialing a valid public addr")
}
if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/192.168.0.1")}) != true {
t.Fatal("succeeded with no public addr")
}
}