314 lines
7.8 KiB
Go
314 lines
7.8 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package stream
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import (
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"context"
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crand "crypto/rand"
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"encoding/binary"
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"fmt"
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"io"
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"sync"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/p2p/discover"
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"github.com/ethereum/go-ethereum/p2p/simulations"
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"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/swarm/network"
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streamTesting "github.com/ethereum/go-ethereum/swarm/network/stream/testing"
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"github.com/ethereum/go-ethereum/swarm/state"
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"github.com/ethereum/go-ethereum/swarm/storage"
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)
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var (
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externalStreamName = "externalStream"
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externalStreamSessionAt uint64 = 50
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externalStreamMaxKeys uint64 = 100
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)
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func newIntervalsStreamerService(ctx *adapters.ServiceContext) (node.Service, error) {
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id := ctx.Config.ID
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addr := toAddr(id)
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kad := network.NewKademlia(addr.Over(), network.NewKadParams())
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store := stores[id].(*storage.LocalStore)
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db := storage.NewDBAPI(store)
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delivery := NewDelivery(kad, db)
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deliveries[id] = delivery
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r := NewRegistry(addr, delivery, db, state.NewInmemoryStore(), &RegistryOptions{
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SkipCheck: defaultSkipCheck,
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})
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r.RegisterClientFunc(externalStreamName, func(p *Peer, t string, live bool) (Client, error) {
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return newTestExternalClient(db), nil
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})
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r.RegisterServerFunc(externalStreamName, func(p *Peer, t string, live bool) (Server, error) {
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return newTestExternalServer(t, externalStreamSessionAt, externalStreamMaxKeys, nil), nil
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})
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go func() {
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waitPeerErrC <- waitForPeers(r, 1*time.Second, peerCount(id))
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}()
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return &TestExternalRegistry{r}, nil
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}
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func TestIntervals(t *testing.T) {
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testIntervals(t, true, nil, false)
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testIntervals(t, false, NewRange(9, 26), false)
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testIntervals(t, true, NewRange(9, 26), false)
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testIntervals(t, true, nil, true)
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testIntervals(t, false, NewRange(9, 26), true)
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testIntervals(t, true, NewRange(9, 26), true)
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}
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func testIntervals(t *testing.T, live bool, history *Range, skipCheck bool) {
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nodes := 2
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chunkCount := dataChunkCount
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defer setDefaultSkipCheck(defaultSkipCheck)
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defaultSkipCheck = skipCheck
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toAddr = network.NewAddrFromNodeID
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conf := &streamTesting.RunConfig{
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Adapter: *adapter,
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NodeCount: nodes,
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ConnLevel: 1,
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ToAddr: toAddr,
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Services: services,
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DefaultService: "intervalsStreamer",
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}
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sim, teardown, err := streamTesting.NewSimulation(conf)
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var rpcSubscriptionsWg sync.WaitGroup
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defer func() {
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rpcSubscriptionsWg.Wait()
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teardown()
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}()
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if err != nil {
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t.Fatal(err)
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}
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stores = make(map[discover.NodeID]storage.ChunkStore)
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deliveries = make(map[discover.NodeID]*Delivery)
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for i, id := range sim.IDs {
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stores[id] = sim.Stores[i]
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}
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peerCount = func(id discover.NodeID) int {
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return 1
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}
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fileStore := storage.NewFileStore(sim.Stores[0], storage.NewFileStoreParams())
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size := chunkCount * chunkSize
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_, wait, err := fileStore.Store(io.LimitReader(crand.Reader, int64(size)), int64(size), false)
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wait()
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if err != nil {
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t.Fatal(err)
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}
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errc := make(chan error, 1)
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waitPeerErrC = make(chan error)
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quitC := make(chan struct{})
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defer close(quitC)
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action := func(ctx context.Context) error {
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i := 0
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for err := range waitPeerErrC {
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if err != nil {
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return fmt.Errorf("error waiting for peers: %s", err)
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}
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i++
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if i == nodes {
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break
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}
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}
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id := sim.IDs[1]
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err := sim.CallClient(id, func(client *rpc.Client) error {
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sid := sim.IDs[0]
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doneC, err := streamTesting.WatchDisconnections(id, client, errc, quitC)
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if err != nil {
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return err
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}
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rpcSubscriptionsWg.Add(1)
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go func() {
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<-doneC
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rpcSubscriptionsWg.Done()
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}()
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ctx, cancel := context.WithTimeout(ctx, 100*time.Second)
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defer cancel()
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err = client.CallContext(ctx, nil, "stream_subscribeStream", sid, NewStream(externalStreamName, "", live), history, Top)
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if err != nil {
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return err
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}
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liveErrC := make(chan error)
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historyErrC := make(chan error)
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go func() {
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if !live {
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close(liveErrC)
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return
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}
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var err error
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defer func() {
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liveErrC <- err
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}()
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// live stream
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liveHashesChan := make(chan []byte)
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liveSubscription, err := client.Subscribe(ctx, "stream", liveHashesChan, "getHashes", sid, NewStream(externalStreamName, "", true))
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if err != nil {
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return
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}
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defer liveSubscription.Unsubscribe()
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i := externalStreamSessionAt
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// we have subscribed, enable notifications
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err = client.CallContext(ctx, nil, "stream_enableNotifications", sid, NewStream(externalStreamName, "", true))
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if err != nil {
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return
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}
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for {
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select {
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case hash := <-liveHashesChan:
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h := binary.BigEndian.Uint64(hash)
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if h != i {
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err = fmt.Errorf("expected live hash %d, got %d", i, h)
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return
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}
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i++
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if i > externalStreamMaxKeys {
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return
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}
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case err = <-liveSubscription.Err():
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return
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case <-ctx.Done():
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return
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}
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}
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}()
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go func() {
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if live && history == nil {
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close(historyErrC)
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return
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}
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var err error
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defer func() {
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historyErrC <- err
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}()
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// history stream
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historyHashesChan := make(chan []byte)
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historySubscription, err := client.Subscribe(ctx, "stream", historyHashesChan, "getHashes", sid, NewStream(externalStreamName, "", false))
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if err != nil {
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return
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}
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defer historySubscription.Unsubscribe()
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var i uint64
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historyTo := externalStreamMaxKeys
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if history != nil {
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i = history.From
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if history.To != 0 {
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historyTo = history.To
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}
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}
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// we have subscribed, enable notifications
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err = client.CallContext(ctx, nil, "stream_enableNotifications", sid, NewStream(externalStreamName, "", false))
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if err != nil {
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return
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}
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for {
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select {
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case hash := <-historyHashesChan:
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h := binary.BigEndian.Uint64(hash)
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if h != i {
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err = fmt.Errorf("expected history hash %d, got %d", i, h)
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return
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}
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i++
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if i > historyTo {
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return
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}
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case err = <-historySubscription.Err():
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return
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case <-ctx.Done():
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return
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}
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}
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}()
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if err := <-liveErrC; err != nil {
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return err
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}
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if err := <-historyErrC; err != nil {
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return err
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}
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return nil
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})
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return err
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}
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check := func(ctx context.Context, id discover.NodeID) (bool, error) {
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select {
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case err := <-errc:
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return false, err
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case <-ctx.Done():
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return false, ctx.Err()
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default:
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}
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return true, nil
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}
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conf.Step = &simulations.Step{
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Action: action,
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Trigger: streamTesting.Trigger(10*time.Millisecond, quitC, sim.IDs[0]),
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Expect: &simulations.Expectation{
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Nodes: sim.IDs[1:1],
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Check: check,
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},
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}
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startedAt := time.Now()
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timeout := 300 * time.Second
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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result, err := sim.Run(ctx, conf)
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finishedAt := time.Now()
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if err != nil {
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t.Fatalf("Setting up simulation failed: %v", err)
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}
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if result.Error != nil {
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t.Fatalf("Simulation failed: %s", result.Error)
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}
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streamTesting.CheckResult(t, result, startedAt, finishedAt)
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}
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