github.com/tenderly/bsc@v1.0.7/les/peer_test.go (about)

     1  // Copyright 2019 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package les
    18  
    19  import (
    20  	"crypto/rand"
    21  	"math/big"
    22  	"reflect"
    23  	"sort"
    24  	"testing"
    25  	"time"
    26  
    27  	"github.com/tenderly/bsc/common"
    28  	"github.com/tenderly/bsc/p2p"
    29  	"github.com/tenderly/bsc/p2p/enode"
    30  )
    31  
    32  type testServerPeerSub struct {
    33  	regCh   chan *serverPeer
    34  	unregCh chan *serverPeer
    35  }
    36  
    37  func newTestServerPeerSub() *testServerPeerSub {
    38  	return &testServerPeerSub{
    39  		regCh:   make(chan *serverPeer, 1),
    40  		unregCh: make(chan *serverPeer, 1),
    41  	}
    42  }
    43  
    44  func (t *testServerPeerSub) registerPeer(p *serverPeer)   { t.regCh <- p }
    45  func (t *testServerPeerSub) unregisterPeer(p *serverPeer) { t.unregCh <- p }
    46  
    47  func TestPeerSubscription(t *testing.T) {
    48  	peers := newServerPeerSet()
    49  	defer peers.close()
    50  
    51  	checkIds := func(expect []string) {
    52  		given := peers.ids()
    53  		if len(given) == 0 && len(expect) == 0 {
    54  			return
    55  		}
    56  		sort.Strings(given)
    57  		sort.Strings(expect)
    58  		if !reflect.DeepEqual(given, expect) {
    59  			t.Fatalf("all peer ids mismatch, want %v, given %v", expect, given)
    60  		}
    61  	}
    62  	checkPeers := func(peerCh chan *serverPeer) {
    63  		select {
    64  		case <-peerCh:
    65  		case <-time.NewTimer(100 * time.Millisecond).C:
    66  			t.Fatalf("timeout, no event received")
    67  		}
    68  		select {
    69  		case <-peerCh:
    70  			t.Fatalf("unexpected event received")
    71  		case <-time.NewTimer(10 * time.Millisecond).C:
    72  		}
    73  	}
    74  	checkIds([]string{})
    75  
    76  	sub := newTestServerPeerSub()
    77  	peers.subscribe(sub)
    78  
    79  	// Generate a random id and create the peer
    80  	var id enode.ID
    81  	rand.Read(id[:])
    82  	peer := newServerPeer(2, NetworkId, false, p2p.NewPeer(id, "name", nil), nil)
    83  	peers.register(peer)
    84  
    85  	checkIds([]string{peer.id})
    86  	checkPeers(sub.regCh)
    87  
    88  	peers.unregister(peer.id)
    89  	checkIds([]string{})
    90  	checkPeers(sub.unregCh)
    91  }
    92  
    93  func TestHandshake(t *testing.T) {
    94  	// Create a message pipe to communicate through
    95  	app, net := p2p.MsgPipe()
    96  
    97  	// Generate a random id and create the peer
    98  	var id enode.ID
    99  	rand.Read(id[:])
   100  
   101  	peer1 := newClientPeer(2, NetworkId, p2p.NewPeer(id, "name", nil), net)
   102  	peer2 := newServerPeer(2, NetworkId, true, p2p.NewPeer(id, "name", nil), app)
   103  
   104  	var (
   105  		errCh1 = make(chan error, 1)
   106  		errCh2 = make(chan error, 1)
   107  
   108  		td      = big.NewInt(100)
   109  		head    = common.HexToHash("deadbeef")
   110  		headNum = uint64(10)
   111  		genesis = common.HexToHash("cafebabe")
   112  	)
   113  	go func() {
   114  		errCh1 <- peer1.handshake(td, head, headNum, genesis, func(list *keyValueList) {
   115  			var announceType uint64 = announceTypeSigned
   116  			*list = (*list).add("announceType", announceType)
   117  		}, nil)
   118  	}()
   119  	go func() {
   120  		errCh2 <- peer2.handshake(td, head, headNum, genesis, nil, func(recv keyValueMap) error {
   121  			var reqType uint64
   122  			err := recv.get("announceType", &reqType)
   123  			if err != nil {
   124  				t.Fatal(err)
   125  			}
   126  			if reqType != announceTypeSigned {
   127  				t.Fatal("Expected announceTypeSigned")
   128  			}
   129  			return nil
   130  		})
   131  	}()
   132  
   133  	for i := 0; i < 2; i++ {
   134  		select {
   135  		case err := <-errCh1:
   136  			if err != nil {
   137  				t.Fatalf("handshake failed, %v", err)
   138  			}
   139  		case err := <-errCh2:
   140  			if err != nil {
   141  				t.Fatalf("handshake failed, %v", err)
   142  			}
   143  		case <-time.After(time.Second):
   144  			t.Fatalf("timeout")
   145  		}
   146  	}
   147  }