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332 lines
8.5 KiB
332 lines
8.5 KiB
package mempool
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import (
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"encoding/hex"
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"errors"
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"net"
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"sync"
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"testing"
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"time"
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"github.com/fortytw2/leaktest"
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"github.com/go-kit/kit/log/term"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/log"
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tmrand "github.com/tendermint/tendermint/libs/rand"
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"github.com/tendermint/tendermint/p2p"
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"github.com/tendermint/tendermint/p2p/mock"
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memproto "github.com/tendermint/tendermint/proto/tendermint/mempool"
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"github.com/tendermint/tendermint/proxy"
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"github.com/tendermint/tendermint/types"
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)
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const (
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numTxs = 1000
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timeout = 120 * time.Second // ridiculously high because CircleCI is slow
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)
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type peerState struct {
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height int64
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}
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func (ps peerState) GetHeight() int64 {
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return ps.height
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}
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// Send a bunch of txs to the first reactor's mempool and wait for them all to
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// be received in the others.
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func TestReactorBroadcastTxsMessage(t *testing.T) {
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config := cfg.TestConfig()
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// if there were more than two reactors, the order of transactions could not be
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// asserted in waitForTxsOnReactors (due to transactions gossiping). If we
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// replace Connect2Switches (full mesh) with a func, which connects first
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// reactor to others and nothing else, this test should also pass with >2 reactors.
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const N = 2
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reactors := makeAndConnectReactors(config, N)
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defer func() {
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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}()
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for _, r := range reactors {
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for _, peer := range r.Switch.Peers().List() {
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peer.Set(types.PeerStateKey, peerState{1})
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}
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}
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txs := checkTxs(t, reactors[0].mempool, numTxs, UnknownPeerID)
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waitForTxsOnReactors(t, txs, reactors)
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}
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// Send a bunch of txs to the first reactor's mempool, claiming it came from peer
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// ensure peer gets no txs.
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func TestReactorNoBroadcastToSender(t *testing.T) {
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config := cfg.TestConfig()
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const N = 2
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reactors := makeAndConnectReactors(config, N)
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defer func() {
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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}()
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for _, r := range reactors {
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for _, peer := range r.Switch.Peers().List() {
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peer.Set(types.PeerStateKey, peerState{1})
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}
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}
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const peerID = 1
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checkTxs(t, reactors[0].mempool, numTxs, peerID)
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ensureNoTxs(t, reactors[peerID], 100*time.Millisecond)
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}
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func TestReactor_MaxBatchBytes(t *testing.T) {
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config := cfg.TestConfig()
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config.Mempool.MaxBatchBytes = 1024
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const N = 2
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reactors := makeAndConnectReactors(config, N)
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defer func() {
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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}()
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for _, r := range reactors {
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for _, peer := range r.Switch.Peers().List() {
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peer.Set(types.PeerStateKey, peerState{1})
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}
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}
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// Broadcast a tx, which has the max size (minus proto overhead)
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// => ensure it's received by the second reactor.
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tx1 := tmrand.Bytes(1018)
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err := reactors[0].mempool.CheckTx(tx1, nil, TxInfo{SenderID: UnknownPeerID})
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require.NoError(t, err)
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waitForTxsOnReactors(t, []types.Tx{tx1}, reactors)
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reactors[0].mempool.Flush()
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reactors[1].mempool.Flush()
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// Broadcast a tx, which is beyond the max size
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// => ensure it's not sent
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tx2 := tmrand.Bytes(1020)
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err = reactors[0].mempool.CheckTx(tx2, nil, TxInfo{SenderID: UnknownPeerID})
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require.NoError(t, err)
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ensureNoTxs(t, reactors[1], 100*time.Millisecond)
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// => ensure the second reactor did not disconnect from us
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out, in, _ := reactors[1].Switch.NumPeers()
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assert.Equal(t, 1, out+in)
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}
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func TestBroadcastTxForPeerStopsWhenPeerStops(t *testing.T) {
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if testing.Short() {
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t.Skip("skipping test in short mode.")
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}
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config := cfg.TestConfig()
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const N = 2
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reactors := makeAndConnectReactors(config, N)
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defer func() {
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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}()
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// stop peer
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sw := reactors[1].Switch
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sw.StopPeerForError(sw.Peers().List()[0], errors.New("some reason"))
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// check that we are not leaking any go-routines
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// i.e. broadcastTxRoutine finishes when peer is stopped
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leaktest.CheckTimeout(t, 10*time.Second)()
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}
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func TestBroadcastTxForPeerStopsWhenReactorStops(t *testing.T) {
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if testing.Short() {
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t.Skip("skipping test in short mode.")
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}
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config := cfg.TestConfig()
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const N = 2
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reactors := makeAndConnectReactors(config, N)
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// stop reactors
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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// check that we are not leaking any go-routines
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// i.e. broadcastTxRoutine finishes when reactor is stopped
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leaktest.CheckTimeout(t, 10*time.Second)()
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}
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func TestMempoolIDsBasic(t *testing.T) {
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ids := newMempoolIDs()
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peer := mock.NewPeer(net.IP{127, 0, 0, 1})
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ids.ReserveForPeer(peer)
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assert.EqualValues(t, 1, ids.GetForPeer(peer))
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ids.Reclaim(peer)
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ids.ReserveForPeer(peer)
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assert.EqualValues(t, 2, ids.GetForPeer(peer))
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ids.Reclaim(peer)
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}
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func TestMempoolIDsPanicsIfNodeRequestsOvermaxActiveIDs(t *testing.T) {
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if testing.Short() {
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return
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}
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// 0 is already reserved for UnknownPeerID
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ids := newMempoolIDs()
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for i := 0; i < maxActiveIDs-1; i++ {
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peer := mock.NewPeer(net.IP{127, 0, 0, 1})
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ids.ReserveForPeer(peer)
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}
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assert.Panics(t, func() {
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peer := mock.NewPeer(net.IP{127, 0, 0, 1})
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ids.ReserveForPeer(peer)
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})
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}
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func TestDontExhaustMaxActiveIDs(t *testing.T) {
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config := cfg.TestConfig()
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const N = 1
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reactors := makeAndConnectReactors(config, N)
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defer func() {
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for _, r := range reactors {
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if err := r.Stop(); err != nil {
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assert.NoError(t, err)
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}
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}
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}()
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reactor := reactors[0]
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for i := 0; i < maxActiveIDs+1; i++ {
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peer := mock.NewPeer(nil)
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reactor.Receive(MempoolChannel, peer, []byte{0x1, 0x2, 0x3})
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reactor.AddPeer(peer)
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}
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}
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// mempoolLogger is a TestingLogger which uses a different
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// color for each validator ("validator" key must exist).
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func mempoolLogger() log.Logger {
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return log.TestingLoggerWithColorFn(func(keyvals ...interface{}) term.FgBgColor {
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for i := 0; i < len(keyvals)-1; i += 2 {
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if keyvals[i] == "validator" {
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return term.FgBgColor{Fg: term.Color(uint8(keyvals[i+1].(int) + 1))}
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}
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}
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return term.FgBgColor{}
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})
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}
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// connect N mempool reactors through N switches
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func makeAndConnectReactors(config *cfg.Config, n int) []*Reactor {
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reactors := make([]*Reactor, n)
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logger := mempoolLogger()
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for i := 0; i < n; i++ {
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app := kvstore.NewApplication()
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cc := proxy.NewLocalClientCreator(app)
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mempool, cleanup := newMempoolWithApp(cc)
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defer cleanup()
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reactors[i] = NewReactor(config.Mempool, mempool) // so we dont start the consensus states
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reactors[i].SetLogger(logger.With("validator", i))
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}
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p2p.MakeConnectedSwitches(config.P2P, n, func(i int, s *p2p.Switch) *p2p.Switch {
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s.AddReactor("MEMPOOL", reactors[i])
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return s
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}, p2p.Connect2Switches)
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return reactors
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}
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func waitForTxsOnReactors(t *testing.T, txs types.Txs, reactors []*Reactor) {
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// wait for the txs in all mempools
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wg := new(sync.WaitGroup)
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for i, reactor := range reactors {
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wg.Add(1)
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go func(r *Reactor, reactorIndex int) {
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defer wg.Done()
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waitForTxsOnReactor(t, txs, r, reactorIndex)
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}(reactor, i)
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}
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done := make(chan struct{})
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go func() {
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wg.Wait()
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close(done)
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}()
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timer := time.After(timeout)
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select {
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case <-timer:
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t.Fatal("Timed out waiting for txs")
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case <-done:
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}
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}
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func waitForTxsOnReactor(t *testing.T, txs types.Txs, reactor *Reactor, reactorIndex int) {
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mempool := reactor.mempool
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for mempool.Size() < len(txs) {
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time.Sleep(time.Millisecond * 100)
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}
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reapedTxs := mempool.ReapMaxTxs(len(txs))
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for i, tx := range txs {
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assert.Equalf(t, tx, reapedTxs[i],
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"txs at index %d on reactor %d don't match: %v vs %v", i, reactorIndex, tx, reapedTxs[i])
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}
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}
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// ensure no txs on reactor after some timeout
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func ensureNoTxs(t *testing.T, reactor *Reactor, timeout time.Duration) {
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time.Sleep(timeout) // wait for the txs in all mempools
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assert.Zero(t, reactor.mempool.Size())
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}
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func TestMempoolVectors(t *testing.T) {
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testCases := []struct {
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testName string
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tx []byte
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expBytes string
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}{
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{"tx 1", []byte{123}, "0a030a017b"},
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{"tx 2", []byte("proto encoding in mempool"), "0a1b0a1970726f746f20656e636f64696e6720696e206d656d706f6f6c"},
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}
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for _, tc := range testCases {
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tc := tc
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msg := memproto.Message{
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Sum: &memproto.Message_Txs{
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Txs: &memproto.Txs{Txs: [][]byte{tc.tx}},
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},
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}
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bz, err := msg.Marshal()
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require.NoError(t, err, tc.testName)
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require.Equal(t, tc.expBytes, hex.EncodeToString(bz), tc.testName)
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}
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}
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