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package p2p
import (
"context"
"strings"
"testing"
"time"
"github.com/stretchr/testify/require"
dbm "github.com/tendermint/tm-db"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/types"
)
func TestPeerScoring(t *testing.T) {
// coppied from p2p_test shared variables
selfKey := ed25519.GenPrivKeyFromSecret([]byte{0xf9, 0x1b, 0x08, 0xaa, 0x38, 0xee, 0x34, 0xdd})
selfID := types.NodeIDFromPubKey(selfKey.PubKey())
// create a mock peer manager
db := dbm.NewMemDB()
peerManager, err := NewPeerManager(selfID, db, PeerManagerOptions{})
require.NoError(t, err)
// create a fake node
id := types.NodeID(strings.Repeat("a1", 20))
added, err := peerManager.Add(NodeAddress{NodeID: id, Protocol: "memory"})
require.NoError(t, err)
require.True(t, added)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
t.Run("Synchronous", func(t *testing.T) {
// update the manager and make sure it's correct
require.EqualValues(t, 0, peerManager.Scores()[id])
// add a bunch of good status updates and watch things increase.
for i := 1; i < 10; i++ {
peerManager.processPeerEvent(ctx, PeerUpdate{
NodeID: id,
Status: PeerStatusGood,
})
require.EqualValues(t, i, peerManager.Scores()[id])
}
// watch the corresponding decreases respond to update
for i := 10; i == 0; i-- {
peerManager.processPeerEvent(ctx, PeerUpdate{
NodeID: id,
Status: PeerStatusBad,
})
require.EqualValues(t, i, peerManager.Scores()[id])
}
})
t.Run("AsynchronousIncrement", func(t *testing.T) {
start := peerManager.Scores()[id]
pu := peerManager.Subscribe(ctx)
pu.SendUpdate(ctx, PeerUpdate{
NodeID: id,
Status: PeerStatusGood,
})
require.Eventually(t,
func() bool { return start+1 == peerManager.Scores()[id] },
time.Second,
time.Millisecond,
"startAt=%d score=%d", start, peerManager.Scores()[id])
})
t.Run("AsynchronousDecrement", func(t *testing.T) {
start := peerManager.Scores()[id]
pu := peerManager.Subscribe(ctx)
pu.SendUpdate(ctx, PeerUpdate{
NodeID: id,
Status: PeerStatusBad,
})
require.Eventually(t,
func() bool { return start-1 == peerManager.Scores()[id] },
time.Second,
time.Millisecond,
"startAt=%d score=%d", start, peerManager.Scores()[id])
})
}