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// 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 (
"math"
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"golang.org/x/net/context"
)
type testTxRelay struct {
send, nhMined, nhRollback, discard 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) {
self.nhMined = len(mined)
self.nhRollback = len(rollback)
}
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 (
evmux = new(event.TypeMux)
pow = new(core.FakePow)
sdb, _ = ethdb.NewMemDatabase()
ldb, _ = ethdb.NewMemDatabase()
genesis = core.WriteGenesisBlockForTesting(sdb, core.GenesisAccount{Address: testBankAddress, Balance: testBankFunds})
)
core.WriteGenesisBlockForTesting(ldb, core.GenesisAccount{Address: testBankAddress, Balance: testBankFunds})
// Assemble the test environment
blockchain, _ := core.NewBlockChain(sdb, testChainConfig(), pow, evmux)
chainConfig := ¶ms.ChainConfig{HomesteadBlock: new(big.Int)}
gchain, _ := core.GenerateChain(chainConfig, genesis, sdb, poolTestBlocks, txPoolTestChainGen)
if _, err := blockchain.InsertChain(gchain); err != nil {
panic(err)
}
odr := &testOdr{sdb: sdb, ldb: ldb}
relay := &testTxRelay{}
lightchain, _ := NewLightChain(odr, testChainConfig(), pow, evmux)
lightchain.SetValidator(bproc{})
txPermanent = 50
pool := NewTxPool(testChainConfig(), evmux, lightchain, relay)
for ii, block := range gchain {
i := ii + 1
ctx, _ := context.WithTimeout(context.Background(), 200*time.Millisecond)
s := sentTx(i - 1)
e := sentTx(i)
for i := s; i < e; i++ {
relay.send = 0
pool.Add(ctx, testTx[i])
got := relay.send
exp := 1
if got != exp {
t.Errorf("relay.Send expected len = %d, got %d", exp, got)
}
}
relay.nhMined = 0
relay.nhRollback = 0
relay.discard = 0
if _, err := lightchain.InsertHeaderChain([]*types.Header{block.Header()}, 1); err != nil {
panic(err)
}
time.Sleep(time.Millisecond * 30)
got := relay.nhMined
exp := minedTx(i) - minedTx(i-1)
if got != exp {
t.Errorf("relay.NewHead expected len(mined) = %d, got %d", exp, got)
}
got = relay.discard
exp = 0
if i > int(txPermanent)+1 {
exp = minedTx(i-int(txPermanent)-1) - minedTx(i-int(txPermanent)-2)
}
if got != exp {
t.Errorf("relay.Discard expected len = %d, got %d", exp, got)
}
}
}
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