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helper.go
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helper.go
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package bor
import (
"encoding/hex"
"encoding/json"
"io/ioutil"
"math/big"
"sort"
"testing"
"github.com/StevenBarnett1/bor/cmd/utils"
"github.com/StevenBarnett1/bor/common"
"github.com/StevenBarnett1/bor/consensus/bor"
"github.com/StevenBarnett1/bor/consensus/misc"
"github.com/StevenBarnett1/bor/core"
"github.com/StevenBarnett1/bor/core/types"
"github.com/StevenBarnett1/bor/crypto"
"github.com/StevenBarnett1/bor/crypto/secp256k1"
"github.com/StevenBarnett1/bor/eth"
"github.com/StevenBarnett1/bor/ethdb"
"github.com/StevenBarnett1/bor/params"
)
var (
// The genesis for tests was generated with following parameters
extraSeal = 65 // Fixed number of extra-data suffix bytes reserved for signer seal
// Only this account is a validator for the 0th span
privKey = "b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291"
key, _ = crypto.HexToECDSA(privKey)
addr = crypto.PubkeyToAddress(key.PublicKey) // 0x71562b71999873DB5b286dF957af199Ec94617F7
// This account is one the validators for 1st span (0-indexed)
privKey2 = "9b28f36fbd67381120752d6172ecdcf10e06ab2d9a1367aac00cdcd6ac7855d3"
key2, _ = crypto.HexToECDSA(privKey2)
addr2 = crypto.PubkeyToAddress(key2.PublicKey) // 0x9fB29AAc15b9A4B7F17c3385939b007540f4d791
validatorHeaderBytesLength = common.AddressLength + 20 // address + power
sprintSize uint64 = 4
spanSize uint64 = 8
)
type initializeData struct {
genesis *core.Genesis
ethereum *eth.Ethereum
}
func buildEthereumInstance(t *testing.T, db ethdb.Database) *initializeData {
genesisData, err := ioutil.ReadFile("./testdata/genesis.json")
if err != nil {
t.Fatalf("%s", err)
}
gen := &core.Genesis{}
if err := json.Unmarshal(genesisData, gen); err != nil {
t.Fatalf("%s", err)
}
ethConf := ð.Config{
Genesis: gen,
}
ethConf.Genesis.MustCommit(db)
ethereum := utils.CreateBorEthereum(ethConf)
if err != nil {
t.Fatalf("failed to register Ethereum protocol: %v", err)
}
ethConf.Genesis.MustCommit(ethereum.ChainDb())
return &initializeData{
genesis: gen,
ethereum: ethereum,
}
}
func insertNewBlock(t *testing.T, chain *core.BlockChain, block *types.Block) {
if _, err := chain.InsertChain([]*types.Block{block}); err != nil {
t.Fatalf("%s", err)
}
}
func buildNextBlock(t *testing.T, _bor *bor.Bor, chain *core.BlockChain, block *types.Block, signer []byte, borConfig *params.BorConfig) *types.Block {
header := block.Header()
header.Number.Add(header.Number, big.NewInt(1))
number := header.Number.Uint64()
if signer == nil {
signer = getSignerKey(header.Number.Uint64())
}
header.ParentHash = block.Hash()
header.Time += bor.CalcProducerDelay(header.Number.Uint64(), 0, borConfig)
header.Extra = make([]byte, 32+65) // vanity + extraSeal
currentValidators := []*bor.Validator{bor.NewValidator(addr, 10)}
isSpanEnd := (number+1)%spanSize == 0
isSpanStart := number%spanSize == 0
isSprintEnd := (header.Number.Uint64()+1)%sprintSize == 0
if isSpanEnd {
_, heimdallSpan := loadSpanFromFile(t)
// this is to stash the validator bytes in the header
currentValidators = heimdallSpan.ValidatorSet.Validators
} else if isSpanStart {
header.Difficulty = new(big.Int).SetInt64(3)
}
if isSprintEnd {
sort.Sort(bor.ValidatorsByAddress(currentValidators))
validatorBytes := make([]byte, len(currentValidators)*validatorHeaderBytesLength)
header.Extra = make([]byte, 32+len(validatorBytes)+65) // vanity + validatorBytes + extraSeal
for i, val := range currentValidators {
copy(validatorBytes[i*validatorHeaderBytesLength:], val.HeaderBytes())
}
copy(header.Extra[32:], validatorBytes)
}
if chain.Config().IsLondon(header.Number) {
header.BaseFee = misc.CalcBaseFee(chain.Config(), block.Header())
if !chain.Config().IsLondon(block.Number()) {
parentGasLimit := block.GasLimit() * params.ElasticityMultiplier
header.GasLimit = core.CalcGasLimit(parentGasLimit, parentGasLimit)
}
}
state, err := chain.State()
if err != nil {
t.Fatalf("%s", err)
}
_, err = _bor.FinalizeAndAssemble(chain, header, state, nil, nil, nil)
if err != nil {
t.Fatalf("%s", err)
}
sign(t, header, signer, borConfig)
return types.NewBlockWithHeader(header)
}
func sign(t *testing.T, header *types.Header, signer []byte, c *params.BorConfig) {
sig, err := secp256k1.Sign(crypto.Keccak256(bor.BorRLP(header, c)), signer)
if err != nil {
t.Fatalf("%s", err)
}
copy(header.Extra[len(header.Extra)-extraSeal:], sig)
}
func stateSyncEventsPayload(t *testing.T) *bor.ResponseWithHeight {
stateData, err := ioutil.ReadFile("./testdata/states.json")
if err != nil {
t.Fatalf("%s", err)
}
res := &bor.ResponseWithHeight{}
if err := json.Unmarshal(stateData, res); err != nil {
t.Fatalf("%s", err)
}
return res
}
func loadSpanFromFile(t *testing.T) (*bor.ResponseWithHeight, *bor.HeimdallSpan) {
spanData, err := ioutil.ReadFile("./testdata/span.json")
if err != nil {
t.Fatalf("%s", err)
}
res := &bor.ResponseWithHeight{}
if err := json.Unmarshal(spanData, res); err != nil {
t.Fatalf("%s", err)
}
heimdallSpan := &bor.HeimdallSpan{}
if err := json.Unmarshal(res.Result, heimdallSpan); err != nil {
t.Fatalf("%s", err)
}
return res, heimdallSpan
}
func getSignerKey(number uint64) []byte {
signerKey := privKey
isSpanStart := number%spanSize == 0
if isSpanStart {
// validator set in the new span has changed
signerKey = privKey2
}
_key, _ := hex.DecodeString(signerKey)
return _key
}