neoneo-go/pkg/core/helper_test.go

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package core
import (
"testing"
"time"
"github.com/nspcc-dev/neo-go/internal/testchain"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
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"go.uber.org/zap/zaptest"
)
// newTestChain should be called before newBlock invocation to properly setup
// global state.
func newTestChain(t testing.TB) *Blockchain {
return newTestChainWithCustomCfg(t, nil)
}
func newTestChainWithCustomCfg(t testing.TB, f func(*config.Config)) *Blockchain {
return newTestChainWithCustomCfgAndStore(t, nil, f)
}
func newTestChainWithCustomCfgAndStore(t testing.TB, st storage.Store, f func(*config.Config)) *Blockchain {
chain := initTestChain(t, st, f)
go chain.Run()
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t.Cleanup(chain.Close)
return chain
}
func initTestChain(t testing.TB, st storage.Store, f func(*config.Config)) *Blockchain {
chain, err := initTestChainNoCheck(t, st, f)
require.NoError(t, err)
return chain
}
func initTestChainNoCheck(t testing.TB, st storage.Store, f func(*config.Config)) (*Blockchain, error) {
unitTestNetCfg, err := config.Load("../../config", testchain.Network())
require.NoError(t, err)
if f != nil {
f(&unitTestNetCfg)
}
if st == nil {
st = storage.NewMemoryStore()
}
log := zaptest.NewLogger(t)
if _, ok := t.(*testing.B); ok {
log = zap.NewNop()
}
return NewBlockchain(st, unitTestNetCfg.ProtocolConfiguration, log)
}
func (bc *Blockchain) newBlock(txs ...*transaction.Transaction) *block.Block {
lastBlock, ok := bc.topBlock.Load().(*block.Block)
if !ok {
var err error
lastBlock, err = bc.GetBlock(bc.GetHeaderHash(bc.BlockHeight()))
if err != nil {
panic(err)
}
}
if bc.config.StateRootInHeader {
sr, err := bc.GetStateModule().GetStateRoot(bc.BlockHeight())
if err != nil {
panic(err)
}
return newBlockWithState(bc.config, lastBlock.Index+1, lastBlock.Hash(), &sr.Root, txs...)
}
return newBlock(bc.config, lastBlock.Index+1, lastBlock.Hash(), txs...)
}
func newBlock(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256, txs ...*transaction.Transaction) *block.Block {
return newBlockWithState(cfg, index, prev, nil, txs...)
}
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func newBlockCustom(cfg config.ProtocolConfiguration, f func(b *block.Block),
txs ...*transaction.Transaction) *block.Block {
validators, _ := validatorsFromConfig(cfg)
valScript, _ := smartcontract.CreateDefaultMultiSigRedeemScript(validators)
witness := transaction.Witness{
VerificationScript: valScript,
}
b := &block.Block{
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Header: block.Header{
NextConsensus: witness.ScriptHash(),
Script: witness,
},
Transactions: txs,
}
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f(b)
b.RebuildMerkleRoot()
b.Script.InvocationScript = testchain.Sign(b)
return b
}
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func newBlockWithState(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256,
prevState *util.Uint256, txs ...*transaction.Transaction) *block.Block {
return newBlockCustom(cfg, func(b *block.Block) {
b.PrevHash = prev
b.Timestamp = uint64(time.Now().UTC().Unix())*1000 + uint64(index)
b.Index = index
if prevState != nil {
b.StateRootEnabled = true
b.PrevStateRoot = *prevState
}
}, txs...)
}
func (bc *Blockchain) genBlocks(n int) ([]*block.Block, error) {
blocks := make([]*block.Block, n)
lastHash := bc.topBlock.Load().(*block.Block).Hash()
lastIndex := bc.topBlock.Load().(*block.Block).Index
for i := 0; i < n; i++ {
blocks[i] = newBlock(bc.config, uint32(i)+lastIndex+1, lastHash)
if err := bc.AddBlock(blocks[i]); err != nil {
return blocks, err
}
lastHash = blocks[i].Hash()
}
return blocks, nil
}