aboutsummaryrefslogtreecommitdiffstats
path: root/core/chain_manager_test.go
blob: b384c492646c968f2a54b59cdf07cacebc8a26fb (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
package core

import (
    "fmt"
    "os"
    "path"
    "reflect"
    "runtime"
    "strconv"
    "testing"

    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/ethdb"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/event"
    "github.com/ethereum/go-ethereum/rlp"
)

func init() {
    runtime.GOMAXPROCS(runtime.NumCPU())
    ethutil.ReadConfig("/tmp/ethtest", "/tmp/ethtest", "ETH")
}

func loadChain(fn string, t *testing.T) (types.Blocks, error) {
    fh, err := os.OpenFile(path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "_data", fn), os.O_RDONLY, os.ModePerm)
    if err != nil {
        return nil, err
    }
    defer fh.Close()

    var chain types.Blocks
    if err := rlp.Decode(fh, &chain); err != nil {
        return nil, err
    }

    return chain, nil
}

func insertChain(done chan bool, chainMan *ChainManager, chain types.Blocks, t *testing.T) {
    err := chainMan.InsertChain(chain)
    if err != nil {
        fmt.Println(err)
        t.FailNow()
    }
    done <- true
}

func TestChainInsertions(t *testing.T) {
    db, _ := ethdb.NewMemDatabase()

    chain1, err := loadChain("valid1", t)
    if err != nil {
        fmt.Println(err)
        t.FailNow()
    }

    chain2, err := loadChain("valid2", t)
    if err != nil {
        fmt.Println(err)
        t.FailNow()
    }

    var eventMux event.TypeMux
    chainMan := NewChainManager(db, &eventMux)
    txPool := NewTxPool(&eventMux)
    blockMan := NewBlockProcessor(db, txPool, chainMan, &eventMux)
    chainMan.SetProcessor(blockMan)

    const max = 2
    done := make(chan bool, max)

    go insertChain(done, chainMan, chain1, t)
    go insertChain(done, chainMan, chain2, t)

    for i := 0; i < max; i++ {
        <-done
    }

    if reflect.DeepEqual(chain2[len(chain2)-1], chainMan.CurrentBlock()) {
        t.Error("chain2 is canonical and shouldn't be")
    }

    if !reflect.DeepEqual(chain1[len(chain1)-1], chainMan.CurrentBlock()) {
        t.Error("chain1 isn't canonical and should be")
    }
}

func TestChainMultipleInsertions(t *testing.T) {
    db, _ := ethdb.NewMemDatabase()

    const max = 4
    chains := make([]types.Blocks, max)
    var longest int
    for i := 0; i < max; i++ {
        var err error
        name := "valid" + strconv.Itoa(i+1)
        chains[i], err = loadChain(name, t)
        if len(chains[i]) >= len(chains[longest]) {
            longest = i
        }
        fmt.Println("loaded", name, "with a length of", len(chains[i]))
        if err != nil {
            fmt.Println(err)
            t.FailNow()
        }
    }
    var eventMux event.TypeMux
    chainMan := NewChainManager(db, &eventMux)
    txPool := NewTxPool(&eventMux)
    blockMan := NewBlockProcessor(db, txPool, chainMan, &eventMux)
    chainMan.SetProcessor(blockMan)
    done := make(chan bool, max)
    for i, chain := range chains {
        // XXX the go routine would otherwise reference the same (chain[3]) variable and fail
        i := i
        chain := chain
        go func() {
            insertChain(done, chainMan, chain, t)
            fmt.Println(i, "done")
        }()
    }

    for i := 0; i < max; i++ {
        <-done
    }

    if !reflect.DeepEqual(chains[longest][len(chains[longest])-1], chainMan.CurrentBlock()) {
        t.Error("Invalid canonical chain")
    }
}