You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
325 lines
7.6 KiB
325 lines
7.6 KiB
package statesync
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/fortytw2/leaktest"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/tendermint/tendermint/internal/p2p"
|
|
"github.com/tendermint/tendermint/internal/test/factory"
|
|
ssproto "github.com/tendermint/tendermint/proto/tendermint/statesync"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
type channelInternal struct {
|
|
In chan p2p.Envelope
|
|
Out chan p2p.Envelope
|
|
Error chan p2p.PeerError
|
|
}
|
|
|
|
func testChannel(size int) (*channelInternal, *p2p.Channel) {
|
|
in := &channelInternal{
|
|
In: make(chan p2p.Envelope, size),
|
|
Out: make(chan p2p.Envelope, size),
|
|
Error: make(chan p2p.PeerError, size),
|
|
}
|
|
return in, p2p.NewChannel(0, nil, in.In, in.Out, in.Error)
|
|
}
|
|
|
|
func TestDispatcherBasic(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
const numPeers = 5
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
chans, ch := testChannel(100)
|
|
|
|
d := NewDispatcher(ch)
|
|
go handleRequests(ctx, t, d, chans.Out)
|
|
|
|
peers := createPeerSet(numPeers)
|
|
wg := sync.WaitGroup{}
|
|
|
|
// make a bunch of async requests and require that the correct responses are
|
|
// given
|
|
for i := 0; i < numPeers; i++ {
|
|
wg.Add(1)
|
|
go func(height int64) {
|
|
defer wg.Done()
|
|
lb, err := d.LightBlock(ctx, height, peers[height-1])
|
|
require.NoError(t, err)
|
|
require.NotNil(t, lb)
|
|
require.Equal(t, lb.Height, height)
|
|
}(int64(i + 1))
|
|
}
|
|
wg.Wait()
|
|
|
|
// assert that all calls were responded to
|
|
assert.Empty(t, d.calls)
|
|
}
|
|
|
|
func TestDispatcherReturnsNoBlock(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
chans, ch := testChannel(100)
|
|
|
|
d := NewDispatcher(ch)
|
|
|
|
peer := factory.NodeID(t, "a")
|
|
|
|
go func() {
|
|
<-chans.Out
|
|
require.NoError(t, d.Respond(ctx, nil, peer))
|
|
cancel()
|
|
}()
|
|
|
|
lb, err := d.LightBlock(ctx, 1, peer)
|
|
<-ctx.Done()
|
|
|
|
require.Nil(t, lb)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestDispatcherTimeOutWaitingOnLightBlock(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
_, ch := testChannel(100)
|
|
d := NewDispatcher(ch)
|
|
peer := factory.NodeID(t, "a")
|
|
|
|
ctx, cancelFunc := context.WithTimeout(ctx, 10*time.Millisecond)
|
|
defer cancelFunc()
|
|
|
|
lb, err := d.LightBlock(ctx, 1, peer)
|
|
|
|
require.Error(t, err)
|
|
require.Equal(t, context.DeadlineExceeded, err)
|
|
require.Nil(t, lb)
|
|
}
|
|
|
|
func TestDispatcherProviders(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
|
|
chainID := "test-chain"
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
chans, ch := testChannel(100)
|
|
|
|
d := NewDispatcher(ch)
|
|
go handleRequests(ctx, t, d, chans.Out)
|
|
|
|
peers := createPeerSet(5)
|
|
providers := make([]*BlockProvider, len(peers))
|
|
for idx, peer := range peers {
|
|
providers[idx] = NewBlockProvider(peer, chainID, d)
|
|
}
|
|
require.Len(t, providers, 5)
|
|
|
|
for i, p := range providers {
|
|
assert.Equal(t, string(peers[i]), p.String(), i)
|
|
lb, err := p.LightBlock(ctx, 10)
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, lb)
|
|
}
|
|
}
|
|
|
|
func TestPeerListBasic(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
peerList := newPeerList()
|
|
assert.Zero(t, peerList.Len())
|
|
numPeers := 10
|
|
peerSet := createPeerSet(numPeers)
|
|
|
|
for _, peer := range peerSet {
|
|
peerList.Append(peer)
|
|
}
|
|
|
|
for idx, peer := range peerList.All() {
|
|
assert.Equal(t, peer, peerSet[idx])
|
|
}
|
|
|
|
assert.Equal(t, numPeers, peerList.Len())
|
|
|
|
half := numPeers / 2
|
|
for i := 0; i < half; i++ {
|
|
assert.Equal(t, peerSet[i], peerList.Pop(ctx))
|
|
}
|
|
assert.Equal(t, half, peerList.Len())
|
|
|
|
// removing a peer that doesn't exist should not change the list
|
|
peerList.Remove(types.NodeID("lp"))
|
|
assert.Equal(t, half, peerList.Len())
|
|
|
|
// removing a peer that exists should decrease the list size by one
|
|
peerList.Remove(peerSet[half])
|
|
assert.Equal(t, numPeers-half-1, peerList.Len())
|
|
|
|
// popping the next peer should work as expected
|
|
assert.Equal(t, peerSet[half+1], peerList.Pop(ctx))
|
|
assert.Equal(t, numPeers-half-2, peerList.Len())
|
|
|
|
// append the two peers back
|
|
peerList.Append(peerSet[half])
|
|
peerList.Append(peerSet[half+1])
|
|
assert.Equal(t, half, peerList.Len())
|
|
}
|
|
|
|
func TestPeerListBlocksWhenEmpty(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
peerList := newPeerList()
|
|
require.Zero(t, peerList.Len())
|
|
doneCh := make(chan struct{})
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
go func() {
|
|
peerList.Pop(ctx)
|
|
close(doneCh)
|
|
}()
|
|
select {
|
|
case <-doneCh:
|
|
t.Error("empty peer list should not have returned result")
|
|
case <-time.After(100 * time.Millisecond):
|
|
}
|
|
}
|
|
|
|
func TestEmptyPeerListReturnsWhenContextCanceled(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
peerList := newPeerList()
|
|
require.Zero(t, peerList.Len())
|
|
doneCh := make(chan struct{})
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
wrapped, cancel := context.WithCancel(ctx)
|
|
go func() {
|
|
peerList.Pop(wrapped)
|
|
close(doneCh)
|
|
}()
|
|
select {
|
|
case <-doneCh:
|
|
t.Error("empty peer list should not have returned result")
|
|
case <-time.After(100 * time.Millisecond):
|
|
}
|
|
|
|
cancel()
|
|
|
|
select {
|
|
case <-doneCh:
|
|
case <-time.After(100 * time.Millisecond):
|
|
t.Error("peer list should have returned after context canceled")
|
|
}
|
|
}
|
|
|
|
func TestPeerListConcurrent(t *testing.T) {
|
|
t.Cleanup(leaktest.Check(t))
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
peerList := newPeerList()
|
|
numPeers := 10
|
|
|
|
wg := sync.WaitGroup{}
|
|
// we run a set of goroutines requesting the next peer in the list. As the
|
|
// peer list hasn't been populated each these go routines should block
|
|
for i := 0; i < numPeers/2; i++ {
|
|
go func() {
|
|
_ = peerList.Pop(ctx)
|
|
wg.Done()
|
|
}()
|
|
}
|
|
|
|
// now we add the peers to the list, this should allow the previously
|
|
// blocked go routines to unblock
|
|
for _, peer := range createPeerSet(numPeers) {
|
|
wg.Add(1)
|
|
peerList.Append(peer)
|
|
}
|
|
|
|
// we request the second half of the peer set
|
|
for i := 0; i < numPeers/2; i++ {
|
|
go func() {
|
|
_ = peerList.Pop(ctx)
|
|
wg.Done()
|
|
}()
|
|
}
|
|
|
|
// we use a context with cancel and a separate go routine to wait for all
|
|
// the other goroutines to close.
|
|
go func() { wg.Wait(); cancel() }()
|
|
|
|
select {
|
|
case <-time.After(time.Second):
|
|
// not all of the blocked go routines waiting on peers have closed after
|
|
// one second. This likely means the list got blocked.
|
|
t.Failed()
|
|
case <-ctx.Done():
|
|
// there should be no peers remaining
|
|
require.Equal(t, 0, peerList.Len())
|
|
}
|
|
}
|
|
|
|
func TestPeerListRemove(t *testing.T) {
|
|
peerList := newPeerList()
|
|
numPeers := 10
|
|
|
|
peerSet := createPeerSet(numPeers)
|
|
for _, peer := range peerSet {
|
|
peerList.Append(peer)
|
|
}
|
|
|
|
for _, peer := range peerSet {
|
|
peerList.Remove(peer)
|
|
for _, p := range peerList.All() {
|
|
require.NotEqual(t, p, peer)
|
|
}
|
|
numPeers--
|
|
require.Equal(t, numPeers, peerList.Len())
|
|
}
|
|
}
|
|
|
|
// handleRequests is a helper function usually run in a separate go routine to
|
|
// imitate the expected responses of the reactor wired to the dispatcher
|
|
func handleRequests(ctx context.Context, t *testing.T, d *Dispatcher, ch chan p2p.Envelope) {
|
|
t.Helper()
|
|
for {
|
|
select {
|
|
case request := <-ch:
|
|
height := request.Message.(*ssproto.LightBlockRequest).Height
|
|
peer := request.To
|
|
resp := mockLBResp(ctx, t, peer, int64(height), time.Now())
|
|
block, _ := resp.block.ToProto()
|
|
require.NoError(t, d.Respond(ctx, block, resp.peer))
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func createPeerSet(num int) []types.NodeID {
|
|
peers := make([]types.NodeID, num)
|
|
for i := 0; i < num; i++ {
|
|
peers[i], _ = types.NewNodeID(strings.Repeat(fmt.Sprintf("%d", i), 2*types.NodeIDByteLength))
|
|
}
|
|
return peers
|
|
}
|