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core, consensus: pluggable consensus engines (#3817)

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This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
This commit is contained in:
Péter Szilágyi
2017-04-05 01:16:29 +03:00
committed by Felix Lange
parent e50a5b7771
commit 09777952ee
61 changed files with 1681 additions and 1426 deletions
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60
core/database_util_test.go
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@ -18,14 +18,12 @@ package core
import (
"bytes"
"encoding/json"
"io/ioutil"
"math/big"
"os"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/sha3"
@ -34,58 +32,6 @@ import (
"github.com/ethereum/go-ethereum/rlp"
)
type diffTest struct {
ParentTimestamp uint64
ParentDifficulty *big.Int
CurrentTimestamp uint64
CurrentBlocknumber *big.Int
CurrentDifficulty *big.Int
}
func (d *diffTest) UnmarshalJSON(b []byte) (err error) {
var ext struct {
ParentTimestamp string
ParentDifficulty string
CurrentTimestamp string
CurrentBlocknumber string
CurrentDifficulty string
}
if err := json.Unmarshal(b, &ext); err != nil {
return err
}
d.ParentTimestamp = math.MustParseUint64(ext.ParentTimestamp)
d.ParentDifficulty = math.MustParseBig256(ext.ParentDifficulty)
d.CurrentTimestamp = math.MustParseUint64(ext.CurrentTimestamp)
d.CurrentBlocknumber = math.MustParseBig256(ext.CurrentBlocknumber)
d.CurrentDifficulty = math.MustParseBig256(ext.CurrentDifficulty)
return nil
}
func TestCalcDifficulty(t *testing.T) {
file, err := os.Open("../tests/files/BasicTests/difficulty.json")
if err != nil {
t.Fatal(err)
}
defer file.Close()
tests := make(map[string]diffTest)
err = json.NewDecoder(file).Decode(&tests)
if err != nil {
t.Fatal(err)
}
config := &params.ChainConfig{HomesteadBlock: big.NewInt(1150000)}
for name, test := range tests {
number := new(big.Int).Sub(test.CurrentBlocknumber, big.NewInt(1))
diff := CalcDifficulty(config, test.CurrentTimestamp, test.ParentTimestamp, number, test.ParentDifficulty)
if diff.Cmp(test.CurrentDifficulty) != 0 {
t.Error(name, "failed. Expected", test.CurrentDifficulty, "and calculated", diff)
}
}
}
// Tests block header storage and retrieval operations.
func TestHeaderStorage(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
@ -562,7 +508,11 @@ func TestMipmapChain(t *testing.T) {
)
defer db.Close()
genesis := testGenesis(addr, big.NewInt(1000000)).MustCommit(db)
gspec := &Genesis{
Config: params.TestChainConfig,
Alloc: GenesisAlloc{addr: {Balance: big.NewInt(1000000)}},
}
genesis := gspec.MustCommit(db)
chain, receipts := GenerateChain(params.TestChainConfig, genesis, db, 1010, func(i int, gen *BlockGen) {
var receipts types.Receipts
switch i {