plugeth-statediff/test_helpers/mocks/blockchain.go
Roy Crihfield c4f16290c7 Updates post review
* remove StreamCodeAndCodeHash
* Makefile: local build target
* clean up comments & unused
2023-07-14 13:16:39 +08:00

156 lines
4.2 KiB
Go

// Copyright 2019 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 mocks
import (
"errors"
"math/big"
"time"
"github.com/cerc-io/plugeth-statediff/adapt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
)
// BlockChain is a mock blockchain for testing
type BlockChain struct {
HashesLookedUp []common.Hash
blocksToReturnByHash map[common.Hash]*types.Block
blocksToReturnByNumber map[uint64]*types.Block
ChainEvents []core.ChainEvent
Receipts map[common.Hash]types.Receipts
TDByHash map[common.Hash]*big.Int
TDByNum map[uint64]*big.Int
currentBlock *types.Block
}
// SetBlocksForHashes mock method
func (bc *BlockChain) SetBlocksForHashes(blocks map[common.Hash]*types.Block) {
if bc.blocksToReturnByHash == nil {
bc.blocksToReturnByHash = make(map[common.Hash]*types.Block)
}
bc.blocksToReturnByHash = blocks
}
// GetBlockByHash mock method
func (bc *BlockChain) GetBlockByHash(hash common.Hash) *types.Block {
bc.HashesLookedUp = append(bc.HashesLookedUp, hash)
var block *types.Block
if len(bc.blocksToReturnByHash) > 0 {
block = bc.blocksToReturnByHash[hash]
}
return block
}
// SetChainEvents mock method
func (bc *BlockChain) SetChainEvents(chainEvents []core.ChainEvent) {
bc.ChainEvents = chainEvents
}
// SubscribeChainEvent mock method
func (bc *BlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
subErr := errors.New("mock subscription error")
var eventCounter int
subscription := event.NewSubscription(func(quit <-chan struct{}) error {
for _, chainEvent := range bc.ChainEvents {
if eventCounter > 1 {
time.Sleep(250 * time.Millisecond)
return subErr
}
select {
case ch <- chainEvent:
case <-quit:
return nil
}
eventCounter++
}
return nil
})
return subscription
}
// SetReceiptsForHash test method
func (bc *BlockChain) SetReceiptsForHash(hash common.Hash, receipts types.Receipts) {
if bc.Receipts == nil {
bc.Receipts = make(map[common.Hash]types.Receipts)
}
bc.Receipts[hash] = receipts
}
// GetReceiptsByHash mock method
func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
return bc.Receipts[hash]
}
// SetBlockForNumber test method
func (bc *BlockChain) SetBlockForNumber(block *types.Block, number uint64) {
if bc.blocksToReturnByNumber == nil {
bc.blocksToReturnByNumber = make(map[uint64]*types.Block)
}
bc.blocksToReturnByNumber[number] = block
}
// GetBlockByNumber mock method
func (bc *BlockChain) GetBlockByNumber(number uint64) *types.Block {
return bc.blocksToReturnByNumber[number]
}
// GetTd mock method
func (bc *BlockChain) GetTd(hash common.Hash, blockNum uint64) *big.Int {
if td, ok := bc.TDByHash[hash]; ok {
return td
}
if td, ok := bc.TDByNum[blockNum]; ok {
return td
}
return nil
}
// SetCurrentBlock test method
func (bc *BlockChain) SetCurrentBlock(block *types.Block) {
bc.currentBlock = block
}
// CurrentBlock mock method
func (bc *BlockChain) CurrentBlock() *types.Header {
return bc.currentBlock.Header()
}
func (bc *BlockChain) SetTd(hash common.Hash, blockNum uint64, td *big.Int) {
if bc.TDByHash == nil {
bc.TDByHash = make(map[common.Hash]*big.Int)
}
bc.TDByHash[hash] = td
if bc.TDByNum == nil {
bc.TDByNum = make(map[uint64]*big.Int)
}
bc.TDByNum[blockNum] = td
}
// TODO
func (bc *BlockChain) StateCache() adapt.StateView {
return nil
}