status-go/peers/cotopicpool_test.go

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package peers
import (
"context"
"testing"
"time"
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"github.com/stretchr/testify/suite"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/status-im/status-go/params"
)
type CacheOnlyTopicPoolSuite struct {
suite.Suite
peer *p2p.Server
topicPool *cacheOnlyTopicPool
}
func TestCacheOnlyTopicPoolSuite(t *testing.T) {
suite.Run(t, new(CacheOnlyTopicPoolSuite))
}
func (s *CacheOnlyTopicPoolSuite) SetupTest() {
maxCachedPeersMultiplier = 1
key, _ := crypto.GenerateKey()
name := common.MakeName("peer", "1.0")
s.peer = &p2p.Server{
Config: p2p.Config{
MaxPeers: 10,
Name: name,
ListenAddr: "0.0.0.0:0",
PrivateKey: key,
NoDiscovery: true,
},
}
s.Require().NoError(s.peer.Start())
limits := params.NewLimits(1, 2)
cache, err := newInMemoryCache()
s.Require().NoError(err)
t := newTopicPool(nil, MailServerDiscoveryTopic, limits, 100*time.Millisecond, 200*time.Millisecond, cache)
s.topicPool = newCacheOnlyTopicPool(t, &testTrueVerifier{})
s.topicPool.running = 1
// This is a buffered channel to simplify testing.
// If your test generates more than 10 mode changes,
// override this `period` field or consume from it
// using `AssertConsumed()`.
s.topicPool.period = make(chan time.Duration, 10)
}
func (s *CacheOnlyTopicPoolSuite) TearDown() {
s.peer.Stop()
}
func (s *CacheOnlyTopicPoolSuite) TestReplacementPeerIsCounted() {
s.topicPool.limits = params.NewLimits(1, 1)
s.topicPool.maxCachedPeers = 1
id1, err := crypto.GenerateKey()
s.Require().NoError(err)
peer1 := discv5.NewNode(discv5.PubkeyID(&id1.PublicKey), s.peer.Self().IP(), 32311, 32311)
id2, err := crypto.GenerateKey()
s.Require().NoError(err)
peer2 := discv5.NewNode(discv5.PubkeyID(&id2.PublicKey), s.peer.Self().IP(), 32311, 32311)
s.Require().NoError(s.topicPool.processFoundNode(s.peer, peer1))
s.Require().NoError(s.topicPool.processFoundNode(s.peer, peer2))
s.topicPool.ConfirmAdded(s.peer, enode.PubkeyToIDV4(&id1.PublicKey))
s.topicPool.ConfirmAdded(s.peer, enode.PubkeyToIDV4(&id1.PublicKey))
s.True(s.topicPool.MaxReached())
// When we stop searching for peers (when Max limit is reached)
s.topicPool.StopSearch(s.peer)
s.True(s.topicPool.MaxReached())
s.Equal(0, s.topicPool.limits.Max)
s.Equal(0, s.topicPool.limits.Min)
// Then we should drop all connected peers
s.Equal(len(s.topicPool.connectedPeers), 0)
// And cached peers should remain
cachedPeers := s.topicPool.cache.GetPeersRange(s.topicPool.topic, s.topicPool.maxCachedPeers)
s.Equal(1, len(cachedPeers))
}
func (s *CacheOnlyTopicPoolSuite) TestConfirmAddedSignals() {
sentNodeID := ""
sentTopic := ""
sendEnodeDiscovered = func(enode, topic string) {
sentNodeID = enode
sentTopic = topic
}
id, err := crypto.GenerateKey()
s.Require().NoError(err)
nodeID := enode.PubkeyToIDV4(&id.PublicKey)
s.topicPool.ConfirmAdded(s.peer, nodeID)
s.Equal(nodeID.String(), sentNodeID)
s.Equal(MailServerDiscoveryTopic, sentTopic)
}
func (s *CacheOnlyTopicPoolSuite) TestNotTrustedPeer() {
var signalCalled bool
sendEnodeDiscovered = func(_, _ string) { signalCalled = true }
s.topicPool.limits = params.NewLimits(1, 1)
s.topicPool.maxCachedPeers = 1
s.topicPool.verifier = &testFalseVerifier{}
id, err := crypto.GenerateKey()
s.Require().NoError(err)
foundPeer := discv5.NewNode(discv5.PubkeyID(&id.PublicKey), s.peer.Self().IP(), 32311, 32311)
s.Require().NoError(s.topicPool.processFoundNode(s.peer, foundPeer))
s.topicPool.ConfirmAdded(s.peer, enode.PubkeyToIDV4(&id.PublicKey))
s.False(signalCalled)
// limits should not change
s.Equal(1, s.topicPool.limits.Max)
s.Equal(1, s.topicPool.limits.Min)
// not verified peer shoud not be added to the cache
s.Equal(0, len(s.topicPool.cache.GetPeersRange(s.topicPool.topic, s.topicPool.limits.Max)))
}
type testTrueVerifier struct{}
func (v *testTrueVerifier) VerifyNode(context.Context, enode.ID) bool {
return true
}
type testFalseVerifier struct{}
func (v *testFalseVerifier) VerifyNode(context.Context, enode.ID) bool {
return false
}