path: root/swarm/pss/protocol_test.go

// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package pss

import (
    "bytes"
    "context"
    "fmt"
    "strconv"
    "strings"
    "testing"
    "time"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/p2p"
    "github.com/ethereum/go-ethereum/p2p/enode"
    "github.com/ethereum/go-ethereum/swarm/log"
)

type protoCtrl struct {
    C        chan bool
    protocol *Protocol
    run      func(*p2p.Peer, p2p.MsgReadWriter) error
}

// simple ping pong protocol test for the pss devp2p emulation
func TestProtocol(t *testing.T) {
    t.Run("32", testProtocol)
    t.Run("8", testProtocol)
    t.Run("0", testProtocol)
}

func testProtocol(t *testing.T) {

    // address hint size
    var addrsize int64
    paramstring := strings.Split(t.Name(), "/")
    addrsize, _ = strconv.ParseInt(paramstring[1], 10, 0)
    log.Info("protocol test", "addrsize", addrsize)

    topic := PingTopic.String()

    clients, err := setupNetwork(2, false)
    if err != nil {
        t.Fatal(err)
    }
    var loaddrhex string
    err = clients[0].Call(&loaddrhex, "pss_baseAddr")
    if err != nil {
        t.Fatalf("rpc get node 1 baseaddr fail: %v", err)
    }
    loaddrhex = loaddrhex[:2+(addrsize*2)]
    var roaddrhex string
    err = clients[1].Call(&roaddrhex, "pss_baseAddr")
    if err != nil {
        t.Fatalf("rpc get node 2 baseaddr fail: %v", err)
    }
    roaddrhex = roaddrhex[:2+(addrsize*2)]
    lnodeinfo := &p2p.NodeInfo{}
    err = clients[0].Call(&lnodeinfo, "admin_nodeInfo")
    if err != nil {
        t.Fatalf("rpc nodeinfo node 11 fail: %v", err)
    }

    var lpubkey string
    err = clients[0].Call(&lpubkey, "pss_getPublicKey")
    if err != nil {
        t.Fatalf("rpc get node 1 pubkey fail: %v", err)
    }
    var rpubkey string
    err = clients[1].Call(&rpubkey, "pss_getPublicKey")
    if err != nil {
        t.Fatalf("rpc get node 2 pubkey fail: %v", err)
    }

    time.Sleep(time.Millisecond * 1000) // replace with hive healthy code

    lmsgC := make(chan APIMsg)
    lctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
    defer cancel()
    lsub, err := clients[0].Subscribe(lctx, "pss", lmsgC, "receive", topic, false, false)
    if err != nil {
        t.Fatal(err)
    }
    defer lsub.Unsubscribe()
    rmsgC := make(chan APIMsg)
    rctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
    defer cancel()
    rsub, err := clients[1].Subscribe(rctx, "pss", rmsgC, "receive", topic, false, false)
    if err != nil {
        t.Fatal(err)
    }
    defer rsub.Unsubscribe()

    // set reciprocal public keys
    err = clients[0].Call(nil, "pss_setPeerPublicKey", rpubkey, topic, roaddrhex)
    if err != nil {
        t.Fatal(err)
    }
    err = clients[1].Call(nil, "pss_setPeerPublicKey", lpubkey, topic, loaddrhex)
    if err != nil {
        t.Fatal(err)
    }

    // add right peer's public key as protocol peer on left
    p := p2p.NewPeer(enode.ID{}, fmt.Sprintf("%x", common.FromHex(loaddrhex)), []p2p.Cap{})
    _, err = pssprotocols[lnodeinfo.ID].protocol.AddPeer(p, PingTopic, true, rpubkey)
    if err != nil {
        t.Fatal(err)
    }

    // sends ping asym, checks delivery
    pssprotocols[lnodeinfo.ID].C <- false
    select {
    case <-lmsgC:
        log.Debug("lnode ok")
    case cerr := <-lctx.Done():
        t.Fatalf("test message timed out: %v", cerr)
        return
    }
    select {
    case <-rmsgC:
        log.Debug("rnode ok")
    case cerr := <-lctx.Done():
        t.Fatalf("test message timed out: %v", cerr)
    }

    // sends ping asym, checks delivery
    pssprotocols[lnodeinfo.ID].C <- false
    select {
    case <-lmsgC:
        log.Debug("lnode ok")
    case cerr := <-lctx.Done():
        t.Fatalf("test message timed out: %v", cerr)
    }
    select {
    case <-rmsgC:
        log.Debug("rnode ok")
    case cerr := <-lctx.Done():
        t.Fatalf("test message timed out: %v", cerr)
    }
    rw := pssprotocols[lnodeinfo.ID].protocol.pubKeyRWPool[rpubkey]
    pssprotocols[lnodeinfo.ID].protocol.RemovePeer(true, rpubkey)
    if err := rw.WriteMsg(p2p.Msg{
        Size:    3,
        Payload: bytes.NewReader([]byte("foo")),
    }); err == nil {
        t.Fatalf("expected error on write")
    }
}