mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-08-17 17:33:47 +00:00
6807d4d2ed
Implement intervals for stream Client. Change the Subscribe message handling to create both live and history streams if required.
453 lines
9.4 KiB
Go
453 lines
9.4 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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"bytes"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/crypto/sha3"
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p2ptest "github.com/ethereum/go-ethereum/p2p/testing"
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)
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func TestStreamerSubscribe(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", nil, true)
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err = streamer.Subscribe(tester.IDs[0], stream, &Range{From: 0, To: 0}, Top)
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if err == nil || err.Error() != "stream foo not registered" {
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t.Fatalf("Expected error %v, got %v", "stream foo not registered", err)
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}
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}
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var (
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hash0 = sha3.Sum256([]byte{0})
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hash1 = sha3.Sum256([]byte{1})
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hash2 = sha3.Sum256([]byte{2})
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hashesTmp = append(hash0[:], hash1[:]...)
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hashes = append(hashesTmp, hash2[:]...)
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receivedHashes map[string][]byte = make(map[string][]byte)
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wait0 = make(chan bool)
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wait2 = make(chan bool)
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batchDone = make(chan bool)
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)
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type testClient struct {
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t []byte
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}
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type testServer struct {
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t []byte
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}
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func (self *testClient) NeedData(hash []byte) func() {
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receivedHashes[string(hash)] = hash
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if bytes.Equal(hash, hash0[:]) {
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return func() {
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<-wait0
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}
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} else if bytes.Equal(hash, hash2[:]) {
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return func() {
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<-wait2
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}
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}
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return nil
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}
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func (self *testClient) BatchDone(Stream, uint64, []byte, []byte) func() (*TakeoverProof, error) {
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close(batchDone)
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return nil
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}
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func (self *testClient) Close() {}
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func (self *testServer) SetNextBatch(from uint64, to uint64) ([]byte, uint64, uint64, *HandoverProof, error) {
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return make([]byte, HashSize), from + 1, to + 1, nil, nil
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}
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func (self *testServer) GetData([]byte) ([]byte, error) {
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return nil, nil
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}
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func (self *testServer) Close() {
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}
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func TestStreamerDownstreamSubscribeUnsubscribeMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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streamer.RegisterClientFunc("foo", func(p *Peer, t []byte, live bool) (Client, error) {
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return &testClient{
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t: t,
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}, nil
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})
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peerID := tester.IDs[0]
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stream := NewStream("foo", nil, true)
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err = streamer.Subscribe(peerID, stream, &Range{From: 5, To: 8}, Top)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: &Range{
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From: 5,
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To: 8,
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},
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Priority: Top,
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},
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Peer: peerID,
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},
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},
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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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err = streamer.Unsubscribe(peerID, stream)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Unsubscribe message",
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 0,
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Msg: &UnsubscribeMsg{
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Stream: stream,
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},
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Peer: peerID,
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},
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},
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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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}
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func TestStreamerUpstreamSubscribeUnsubscribeMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", nil, false)
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streamer.RegisterServerFunc("foo", func(p *Peer, t []byte, live bool) (Server, error) {
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return &testServer{
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t: t,
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}, nil
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})
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peerID := tester.IDs[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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p2ptest.Trigger{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: &Range{
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From: 5,
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To: 8,
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},
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Priority: Top,
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},
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Peer: peerID,
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},
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},
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 1,
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Msg: &OfferedHashesMsg{
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Stream: stream,
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: make([]byte, HashSize),
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From: 6,
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To: 9,
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Initial: true,
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},
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Peer: peerID,
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},
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},
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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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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "unsubscribe message",
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Triggers: []p2ptest.Trigger{
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p2ptest.Trigger{
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Code: 0,
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Msg: &UnsubscribeMsg{
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Stream: stream,
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},
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Peer: peerID,
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},
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},
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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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}
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func TestStreamerUpstreamSubscribeErrorMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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streamer.RegisterServerFunc("foo", func(p *Peer, t []byte, live bool) (Server, error) {
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return &testServer{
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t: t,
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}, nil
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})
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stream := NewStream("bar", nil, true)
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peerID := tester.IDs[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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p2ptest.Trigger{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: &Range{
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From: 5,
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To: 8,
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},
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Priority: Top,
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},
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Peer: peerID,
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},
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},
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 7,
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Msg: &SubscribeErrorMsg{
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Error: "stream bar not registered",
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},
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Peer: peerID,
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},
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},
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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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}
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// TODO: fix: tests with TestExchanges are inconsistent because Expects check
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// ordering is not guarrantied but fails if the order is wrong.
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// func TestStreamerUpstreamSubscribeLiveAndHistory(t *testing.T) {
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// tester, streamer, _, teardown, err := newStreamerTester(t)
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// defer teardown()
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// if err != nil {
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// t.Fatal(err)
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// }
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// stream := NewStream("foo", nil, true)
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// streamer.RegisterServerFunc("foo", func(p *Peer, t []byte, live bool) (Server, error) {
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// return &testServer{
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// t: t,
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// }, nil
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// })
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// peerID := tester.IDs[0]
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// err = tester.TestExchanges(p2ptest.Exchange{
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// Label: "Subscribe message",
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// Triggers: []p2ptest.Trigger{
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// {
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// Code: 4,
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// Msg: &SubscribeMsg{
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// Stream: stream,
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// History: &Range{
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// From: 5,
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// To: 8,
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// },
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// Priority: Top,
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// },
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// Peer: peerID,
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// },
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// },
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// Expects: []p2ptest.Expect{
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// {
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// Code: 1,
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// Msg: &OfferedHashesMsg{
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// Stream: NewStream("foo", nil, false),
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// HandoverProof: &HandoverProof{
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// Handover: &Handover{},
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// },
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// Hashes: make([]byte, HashSize),
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// From: 6,
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// To: 9,
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// Initial: true,
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// },
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// Peer: peerID,
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// },
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// {
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// Code: 1,
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// Msg: &OfferedHashesMsg{
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// Stream: stream,
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// HandoverProof: &HandoverProof{
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// Handover: &Handover{},
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// },
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// From: 1,
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// To: 1,
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// Hashes: make([]byte, HashSize),
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// Initial: true,
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// },
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// Peer: peerID,
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// },
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// },
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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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// }
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func TestStreamerDownstreamOfferedHashesMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", nil, true)
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streamer.RegisterClientFunc("foo", func(p *Peer, t []byte, live bool) (Client, error) {
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return &testClient{
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t: t,
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}, nil
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})
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peerID := tester.IDs[0]
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err = streamer.Subscribe(peerID, stream, &Range{From: 5, To: 8}, Top)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: &Range{
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From: 5,
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To: 8,
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},
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Priority: Top,
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},
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Peer: peerID,
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},
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},
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},
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p2ptest.Exchange{
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Label: "WantedHashes message",
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Triggers: []p2ptest.Trigger{
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p2ptest.Trigger{
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Code: 1,
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Msg: &OfferedHashesMsg{
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: hashes,
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From: 5,
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To: 8,
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Stream: stream,
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},
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Peer: peerID,
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},
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},
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Expects: []p2ptest.Expect{
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p2ptest.Expect{
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Code: 2,
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Msg: &WantedHashesMsg{
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Stream: stream,
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Want: []byte{5},
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From: 8,
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To: 0,
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},
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Peer: peerID,
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},
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},
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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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if len(receivedHashes) != 3 {
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t.Fatalf("Expected number of received hashes %v, got %v", 3, len(receivedHashes))
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}
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close(wait0)
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timeout := time.NewTimer(100 * time.Millisecond)
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defer timeout.Stop()
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select {
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case <-batchDone:
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t.Fatal("batch done early")
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case <-timeout.C:
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}
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close(wait2)
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timeout2 := time.NewTimer(10000 * time.Millisecond)
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defer timeout2.Stop()
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select {
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case <-batchDone:
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case <-timeout2.C:
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t.Fatal("timeout waiting batchdone call")
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}
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}
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