aboutsummaryrefslogtreecommitdiffstats
path: root/light/txpool_test.go
blob: b343f79b05074d884a638bc0236787e5ab10131e (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
// Copyright 2016 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 light

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

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/consensus/ethash"
    "github.com/ethereum/go-ethereum/core"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/core/vm"
    "github.com/ethereum/go-ethereum/ethdb"
    "github.com/ethereum/go-ethereum/params"
)

type testTxRelay struct {
    send, discard, mined chan int
}

func (self *testTxRelay) Send(txs types.Transactions) {
    self.send <- len(txs)
}

func (self *testTxRelay) NewHead(head common.Hash, mined []common.Hash, rollback []common.Hash) {
    m := len(mined)
    if m != 0 {
        self.mined <- m
    }
}

func (self *testTxRelay) Discard(hashes []common.Hash) {
    self.discard <- len(hashes)
}

const poolTestTxs = 1000
const poolTestBlocks = 100

// test tx 0..n-1
var testTx [poolTestTxs]*types.Transaction

// txs sent before block i
func sentTx(i int) int {
    return int(math.Pow(float64(i)/float64(poolTestBlocks), 0.9) * poolTestTxs)
}

// txs included in block i or before that (minedTx(i) <= sentTx(i))
func minedTx(i int) int {
    return int(math.Pow(float64(i)/float64(poolTestBlocks), 1.1) * poolTestTxs)
}

func txPoolTestChainGen(i int, block *core.BlockGen) {
    s := minedTx(i)
    e := minedTx(i + 1)
    for i := s; i < e; i++ {
        block.AddTx(testTx[i])
    }
}

func TestTxPool(t *testing.T) {
    for i := range testTx {
        testTx[i], _ = types.SignTx(types.NewTransaction(uint64(i), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), types.HomesteadSigner{}, testBankKey)
    }

    var (
        sdb, _  = ethdb.NewMemDatabase()
        ldb, _  = ethdb.NewMemDatabase()
        gspec   = core.Genesis{Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}}}
        genesis = gspec.MustCommit(sdb)
    )
    gspec.MustCommit(ldb)
    // Assemble the test environment
    blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), vm.Config{})
    gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), sdb, poolTestBlocks, txPoolTestChainGen)
    if _, err := blockchain.InsertChain(gchain); err != nil {
        panic(err)
    }

    odr := &testOdr{sdb: sdb, ldb: ldb}
    relay := &testTxRelay{
        send:    make(chan int, 1),
        discard: make(chan int, 1),
        mined:   make(chan int, 1),
    }
    lightchain, _ := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker())
    txPermanent = 50
    pool := NewTxPool(params.TestChainConfig, lightchain, relay)
    ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
    defer cancel()

    for ii, block := range gchain {
        i := ii + 1
        s := sentTx(i - 1)
        e := sentTx(i)
        for i := s; i < e; i++ {
            pool.Add(ctx, testTx[i])
            got := <-relay.send
            exp := 1
            if got != exp {
                t.Errorf("relay.Send expected len = %d, got %d", exp, got)
            }
        }

        if _, err := lightchain.InsertHeaderChain([]*types.Header{block.Header()}, 1); err != nil {
            panic(err)
        }

        got := <-relay.mined
        exp := minedTx(i) - minedTx(i-1)
        if got != exp {
            t.Errorf("relay.NewHead expected len(mined) = %d, got %d", exp, got)
        }

        exp = 0
        if i > int(txPermanent)+1 {
            exp = minedTx(i-int(txPermanent)-1) - minedTx(i-int(txPermanent)-2)
        }
        if exp != 0 {
            got = <-relay.discard
            if got != exp {
                t.Errorf("relay.Discard expected len = %d, got %d", exp, got)
            }
        }
    }
}