lotus/chain/sync_test.go
2019-12-02 19:56:27 +01:00

510 lines
11 KiB
Go

package chain_test
import (
"context"
"fmt"
"os"
"testing"
"time"
logging "github.com/ipfs/go-log"
"github.com/libp2p/go-libp2p-core/peer"
mocknet "github.com/libp2p/go-libp2p/p2p/net/mock"
"github.com/stretchr/testify/require"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/address"
"github.com/filecoin-project/lotus/chain/gen"
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/node"
"github.com/filecoin-project/lotus/node/impl"
"github.com/filecoin-project/lotus/node/modules"
"github.com/filecoin-project/lotus/node/repo"
)
func init() {
build.InsecurePoStValidation = true
os.Setenv("TRUST_PARAMS", "1")
}
const source = 0
func (tu *syncTestUtil) repoWithChain(t testing.TB, h int) (repo.Repo, []byte, []*store.FullTipSet) {
blks := make([]*store.FullTipSet, h)
for i := 0; i < h; i++ {
mts, err := tu.g.NextTipSet()
require.NoError(t, err)
blks[i] = mts.TipSet
}
r, err := tu.g.YieldRepo()
require.NoError(t, err)
genb, err := tu.g.GenesisCar()
require.NoError(t, err)
return r, genb, blks
}
type syncTestUtil struct {
t testing.TB
ctx context.Context
cancel func()
mn mocknet.Mocknet
g *gen.ChainGen
genesis []byte
blocks []*store.FullTipSet
nds []api.FullNode
}
func prepSyncTest(t testing.TB, h int) *syncTestUtil {
logging.SetLogLevel("*", "INFO")
g, err := gen.NewGenerator()
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
tu := &syncTestUtil{
t: t,
ctx: ctx,
cancel: cancel,
mn: mocknet.New(ctx),
g: g,
}
tu.addSourceNode(h)
//tu.checkHeight("source", source, h)
// separate logs
fmt.Println("\x1b[31m///////////////////////////////////////////////////\x1b[39b")
return tu
}
func (tu *syncTestUtil) Shutdown() {
tu.cancel()
}
func (tu *syncTestUtil) printHeads() {
for i, n := range tu.nds {
head, err := n.ChainHead(tu.ctx)
if err != nil {
tu.t.Fatal(err)
}
fmt.Printf("Node %d: %s\n", i, head.Cids())
}
}
func (tu *syncTestUtil) pushFtsAndWait(to int, fts *store.FullTipSet, wait bool) {
// TODO: would be great if we could pass a whole tipset here...
tu.pushTsExpectErr(to, fts, false)
if wait {
start := time.Now()
h, err := tu.nds[to].ChainHead(tu.ctx)
require.NoError(tu.t, err)
for !h.Equals(fts.TipSet()) {
time.Sleep(time.Millisecond * 50)
h, err = tu.nds[to].ChainHead(tu.ctx)
require.NoError(tu.t, err)
if time.Since(start) > time.Second*10 {
tu.t.Fatal("took too long waiting for block to be accepted")
}
}
}
}
func (tu *syncTestUtil) pushTsExpectErr(to int, fts *store.FullTipSet, experr bool) {
for _, fb := range fts.Blocks {
var b types.BlockMsg
// -1 to match block.Height
b.Header = fb.Header
for _, msg := range fb.SecpkMessages {
c, err := tu.nds[to].(*impl.FullNodeAPI).ChainAPI.Chain.PutMessage(msg)
require.NoError(tu.t, err)
b.SecpkMessages = append(b.SecpkMessages, c)
}
for _, msg := range fb.BlsMessages {
c, err := tu.nds[to].(*impl.FullNodeAPI).ChainAPI.Chain.PutMessage(msg)
require.NoError(tu.t, err)
b.BlsMessages = append(b.BlsMessages, c)
}
err := tu.nds[to].SyncSubmitBlock(tu.ctx, &b)
if experr {
require.Error(tu.t, err, "expected submit block to fail")
} else {
require.NoError(tu.t, err)
}
}
}
func (tu *syncTestUtil) mineOnBlock(blk *store.FullTipSet, src int, miners []int, wait, fail bool) *store.FullTipSet {
if miners == nil {
for i := range tu.g.Miners {
miners = append(miners, i)
}
}
var maddrs []address.Address
for _, i := range miners {
maddrs = append(maddrs, tu.g.Miners[i])
}
fmt.Println("Miner mining block: ", maddrs)
mts, err := tu.g.NextTipSetFromMiners(blk.TipSet(), maddrs)
require.NoError(tu.t, err)
if fail {
tu.pushTsExpectErr(src, mts.TipSet, true)
} else {
tu.pushFtsAndWait(src, mts.TipSet, wait)
}
return mts.TipSet
}
func (tu *syncTestUtil) mineNewBlock(src int, miners []int) {
mts := tu.mineOnBlock(tu.g.CurTipset, src, miners, true, false)
tu.g.CurTipset = mts
}
func fblkToBlkMsg(fb *types.FullBlock) *types.BlockMsg {
out := &types.BlockMsg{
Header: fb.Header,
}
for _, msg := range fb.BlsMessages {
out.BlsMessages = append(out.BlsMessages, msg.Cid())
}
for _, msg := range fb.SecpkMessages {
out.SecpkMessages = append(out.SecpkMessages, msg.Cid())
}
return out
}
func (tu *syncTestUtil) addSourceNode(gen int) {
if tu.genesis != nil {
tu.t.Fatal("source node already exists")
}
sourceRepo, genesis, blocks := tu.repoWithChain(tu.t, gen)
var out api.FullNode
// TODO: Don't ignore stop
_, err := node.New(tu.ctx,
node.FullAPI(&out),
node.Online(),
node.Repo(sourceRepo),
node.MockHost(tu.mn),
node.Test(),
node.Override(new(modules.Genesis), modules.LoadGenesis(genesis)),
)
require.NoError(tu.t, err)
lastTs := blocks[len(blocks)-1].Blocks
for _, lastB := range lastTs {
cs := out.(*impl.FullNodeAPI).ChainAPI.Chain
require.NoError(tu.t, cs.AddToTipSetTracker(lastB.Header))
err = cs.AddBlock(tu.ctx, lastB.Header)
require.NoError(tu.t, err)
}
tu.genesis = genesis
tu.blocks = blocks
tu.nds = append(tu.nds, out) // always at 0
}
func (tu *syncTestUtil) addClientNode() int {
if tu.genesis == nil {
tu.t.Fatal("source doesn't exists")
}
var out api.FullNode
// TODO: Don't ignore stop
_, err := node.New(tu.ctx,
node.FullAPI(&out),
node.Online(),
node.Repo(repo.NewMemory(nil)),
node.MockHost(tu.mn),
node.Test(),
node.Override(new(modules.Genesis), modules.LoadGenesis(tu.genesis)),
)
require.NoError(tu.t, err)
tu.nds = append(tu.nds, out)
return len(tu.nds) - 1
}
func (tu *syncTestUtil) pid(n int) peer.ID {
nal, err := tu.nds[n].NetAddrsListen(tu.ctx)
require.NoError(tu.t, err)
return nal.ID
}
func (tu *syncTestUtil) connect(from, to int) {
toPI, err := tu.nds[to].NetAddrsListen(tu.ctx)
require.NoError(tu.t, err)
err = tu.nds[from].NetConnect(tu.ctx, toPI)
require.NoError(tu.t, err)
}
func (tu *syncTestUtil) disconnect(from, to int) {
toPI, err := tu.nds[to].NetAddrsListen(tu.ctx)
require.NoError(tu.t, err)
err = tu.nds[from].NetDisconnect(tu.ctx, toPI.ID)
require.NoError(tu.t, err)
}
func (tu *syncTestUtil) checkHeight(name string, n int, h int) {
b, err := tu.nds[n].ChainHead(tu.ctx)
require.NoError(tu.t, err)
require.Equal(tu.t, uint64(h), b.Height())
fmt.Printf("%s H: %d\n", name, b.Height())
}
func (tu *syncTestUtil) compareSourceState(with int) {
sourceHead, err := tu.nds[source].ChainHead(tu.ctx)
require.NoError(tu.t, err)
targetHead, err := tu.nds[with].ChainHead(tu.ctx)
require.NoError(tu.t, err)
if !sourceHead.Equals(targetHead) {
fmt.Println("different chains: ", sourceHead.Height(), targetHead.Height())
tu.t.Fatalf("nodes were not synced correctly: %s != %s", sourceHead.Cids(), targetHead.Cids())
}
sourceAccounts, err := tu.nds[source].WalletList(tu.ctx)
require.NoError(tu.t, err)
for _, addr := range sourceAccounts {
sourceBalance, err := tu.nds[source].WalletBalance(tu.ctx, addr)
require.NoError(tu.t, err)
fmt.Printf("Source state check for %s, expect %s\n", addr, sourceBalance)
actBalance, err := tu.nds[with].WalletBalance(tu.ctx, addr)
require.NoError(tu.t, err)
require.Equal(tu.t, sourceBalance, actBalance)
fmt.Printf("Source state check <OK> for %s\n", addr)
}
}
func (tu *syncTestUtil) waitUntilSync(from, to int) {
target, err := tu.nds[from].ChainHead(tu.ctx)
if err != nil {
tu.t.Fatal(err)
}
tu.waitUntilSyncTarget(to, target)
}
func (tu *syncTestUtil) waitUntilSyncTarget(to int, target *types.TipSet) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hc, err := tu.nds[to].ChainNotify(ctx)
if err != nil {
tu.t.Fatal(err)
}
// TODO: some sort of timeout?
for n := range hc {
for _, c := range n {
if c.Val.Equals(target) {
return
}
}
}
}
func TestSyncSimple(t *testing.T) {
H := 50
tu := prepSyncTest(t, H)
client := tu.addClientNode()
//tu.checkHeight("client", client, 0)
require.NoError(t, tu.mn.LinkAll())
tu.connect(1, 0)
tu.waitUntilSync(0, client)
//tu.checkHeight("client", client, H)
tu.compareSourceState(client)
}
func TestSyncMining(t *testing.T) {
H := 50
tu := prepSyncTest(t, H)
client := tu.addClientNode()
//tu.checkHeight("client", client, 0)
require.NoError(t, tu.mn.LinkAll())
tu.connect(client, 0)
tu.waitUntilSync(0, client)
//tu.checkHeight("client", client, H)
tu.compareSourceState(client)
for i := 0; i < 5; i++ {
tu.mineNewBlock(0, nil)
tu.waitUntilSync(0, client)
tu.compareSourceState(client)
}
}
func TestSyncBadTimestamp(t *testing.T) {
H := 50
tu := prepSyncTest(t, H)
client := tu.addClientNode()
require.NoError(t, tu.mn.LinkAll())
tu.connect(client, 0)
tu.waitUntilSync(0, client)
base := tu.g.CurTipset
tu.g.Timestamper = func(pts *types.TipSet, tl uint64) uint64 {
return pts.MinTimestamp() + (build.BlockDelay / 2)
}
fmt.Println("BASE: ", base.Cids())
tu.printHeads()
a1 := tu.mineOnBlock(base, 0, nil, false, true)
tu.g.Timestamper = nil
tu.g.ResyncBankerNonce(a1.TipSet())
fmt.Println("After mine bad block!")
tu.printHeads()
a2 := tu.mineOnBlock(base, 0, nil, true, false)
tu.waitUntilSync(0, client)
head, err := tu.nds[0].ChainHead(tu.ctx)
require.NoError(t, err)
if !head.Equals(a2.TipSet()) {
t.Fatalf("expected head to be %s, but got %s", a2.Cids(), head.Cids())
}
}
func (tu *syncTestUtil) loadChainToNode(to int) {
// utility to simulate incoming blocks without miner process
// TODO: should call syncer directly, this won't work correctly in all cases
for i := 0; i < len(tu.blocks); i++ {
tu.pushFtsAndWait(to, tu.blocks[i], true)
}
}
func TestSyncFork(t *testing.T) {
H := 10
tu := prepSyncTest(t, H)
p1 := tu.addClientNode()
p2 := tu.addClientNode()
fmt.Println("GENESIS: ", tu.g.Genesis().Cid())
tu.loadChainToNode(p1)
tu.loadChainToNode(p2)
phead := func() {
h1, err := tu.nds[1].ChainHead(tu.ctx)
require.NoError(tu.t, err)
h2, err := tu.nds[2].ChainHead(tu.ctx)
require.NoError(tu.t, err)
fmt.Println("Node 1: ", h1.Cids(), h1.Parents(), h1.Height())
fmt.Println("Node 2: ", h2.Cids(), h1.Parents(), h2.Height())
//time.Sleep(time.Second * 2)
fmt.Println()
fmt.Println()
fmt.Println()
fmt.Println()
}
phead()
base := tu.g.CurTipset
fmt.Println("Mining base: ", base.TipSet().Cids(), base.TipSet().Height())
// The two nodes fork at this point into 'a' and 'b'
a1 := tu.mineOnBlock(base, p1, []int{0}, true, false)
a := tu.mineOnBlock(a1, p1, []int{0}, true, false)
a = tu.mineOnBlock(a, p1, []int{0}, true, false)
tu.g.ResyncBankerNonce(a1.TipSet())
// chain B will now be heaviest
b := tu.mineOnBlock(base, p2, []int{1}, true, false)
b = tu.mineOnBlock(b, p2, []int{1}, true, false)
b = tu.mineOnBlock(b, p2, []int{1}, true, false)
b = tu.mineOnBlock(b, p2, []int{1}, true, false)
fmt.Println("A: ", a.Cids(), a.TipSet().Height())
fmt.Println("B: ", b.Cids(), b.TipSet().Height())
// Now for the fun part!!
require.NoError(t, tu.mn.LinkAll())
tu.connect(p1, p2)
tu.waitUntilSyncTarget(p1, b.TipSet())
tu.waitUntilSyncTarget(p2, b.TipSet())
phead()
}
func BenchmarkSyncBasic(b *testing.B) {
for i := 0; i < b.N; i++ {
runSyncBenchLength(b, 100)
}
}
func runSyncBenchLength(b *testing.B, l int) {
tu := prepSyncTest(b, l)
client := tu.addClientNode()
tu.checkHeight("client", client, 0)
b.ResetTimer()
require.NoError(b, tu.mn.LinkAll())
tu.connect(1, 0)
tu.waitUntilSync(0, client)
}