aboutsummaryrefslogtreecommitdiffstats
path: root/blockpool/peers_test.go
blob: 99dd16ba14ab2498f04ac55d500121a7dff51204 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
package blockpool

import (
    "math/big"
    "testing"
    "time"

    "github.com/ethereum/go-ethereum/blockpool/test"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core"
    "github.com/ethereum/go-ethereum/core/types"
)

// the actual tests
func TestAddPeer(t *testing.T) {
    test.LogInit()
    _, blockPool, blockPoolTester := newTestBlockPool(t)
    peer0 := blockPoolTester.newPeer("peer0", 1, 0)
    peer1 := blockPoolTester.newPeer("peer1", 2, 1)
    peer2 := blockPoolTester.newPeer("peer2", 3, 2)
    var bestpeer *peer

    blockPool.Start()

    // pool
    best := peer0.AddPeer()
    if !best {
        t.Errorf("peer0 (TD=1) not accepted as best")
    }
    if blockPool.peers.best.id != "peer0" {
        t.Errorf("peer0 (TD=1) not set as best")
    }

    best = peer2.AddPeer()
    if !best {
        t.Errorf("peer2 (TD=3) not accepted as best")
    }
    if blockPool.peers.best.id != "peer2" {
        t.Errorf("peer2 (TD=3) not set as best")
    }
    peer2.waitBlocksRequests(2)

    best = peer1.AddPeer()
    if best {
        t.Errorf("peer1 (TD=2) accepted as best")
    }
    if blockPool.peers.best.id != "peer2" {
        t.Errorf("peer2 (TD=3) not set any more as best")
    }
    if blockPool.peers.best.td.Cmp(big.NewInt(int64(3))) != 0 {
        t.Errorf("peer1 TD not set")
    }

    peer2.td = 4
    peer2.currentBlock = 3
    best = peer2.AddPeer()
    if !best {
        t.Errorf("peer2 (TD=4) not accepted as best")
    }
    if blockPool.peers.best.id != "peer2" {
        t.Errorf("peer2 (TD=4) not set as best")
    }
    if blockPool.peers.best.td.Cmp(big.NewInt(int64(4))) != 0 {
        t.Errorf("peer2 TD not updated")
    }
    peer2.waitBlocksRequests(3)

    peer1.td = 3
    peer1.currentBlock = 2
    best = peer1.AddPeer()
    if best {
        t.Errorf("peer1 (TD=3) should not be set as best")
    }
    if blockPool.peers.best.id == "peer1" {
        t.Errorf("peer1 (TD=3) should not be set as best")
    }
    bestpeer, best = blockPool.peers.getPeer("peer1")
    if bestpeer.td.Cmp(big.NewInt(int64(3))) != 0 {
        t.Errorf("peer1 TD should be updated")
    }

    blockPool.RemovePeer("peer2")
    bestpeer, best = blockPool.peers.getPeer("peer2")
    if bestpeer != nil {
        t.Errorf("peer2 not removed")
    }

    if blockPool.peers.best.id != "peer1" {
        t.Errorf("existing peer1 (TD=3) should be set as best peer")
    }
    peer1.waitBlocksRequests(2)

    blockPool.RemovePeer("peer1")
    bestpeer, best = blockPool.peers.getPeer("peer1")
    if bestpeer != nil {
        t.Errorf("peer1 not removed")
    }

    if blockPool.peers.best.id != "peer0" {
        t.Errorf("existing peer0 (TD=1) should be set as best peer")
    }
    peer0.waitBlocksRequests(0)

    blockPool.RemovePeer("peer0")
    bestpeer, best = blockPool.peers.getPeer("peer0")
    if bestpeer != nil {
        t.Errorf("peer1 not removed")
    }

    // adding back earlier peer ok
    peer0.currentBlock = 3
    best = peer0.AddPeer()
    if !best {
        t.Errorf("peer0 (TD=1) should be set as best")
    }

    if blockPool.peers.best.id != "peer0" {
        t.Errorf("peer0 (TD=1) should be set as best")
    }
    peer0.waitBlocksRequests(3)

    newblock := &types.Block{Td: common.Big3}
    blockPool.chainEvents.Post(core.ChainHeadEvent{newblock})
    time.Sleep(100 * time.Millisecond)
    if blockPool.peers.best != nil {
        t.Errorf("no peer should be ahead of self")
    }
    best = peer1.AddPeer()
    if blockPool.peers.best != nil {
        t.Errorf("still no peer should be ahead of self")
    }

    best = peer2.AddPeer()
    if !best {
        t.Errorf("peer2 (TD=4) not accepted as best")
    }

    blockPool.RemovePeer("peer2")
    if blockPool.peers.best != nil {
        t.Errorf("no peer should be ahead of self")
    }

    blockPool.Stop()
}