go-ethereum/statediff/testhelpers/mocks/blockchain.go

103 lines
3.1 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"
"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/event"
)
// BlockChain is a mock blockchain for testing
type BlockChain struct {
ParentHashesLookedUp []common.Hash
parentBlocksToReturn map[common.Hash]*types.Block
callCount int
ChainEvents []core.ChainEvent
Receipts map[common.Hash]types.Receipts
}
// AddToStateDiffProcessedCollection mock method
func (blockChain *BlockChain) AddToStateDiffProcessedCollection(hash common.Hash) {}
// SetParentBlocksToReturn mock method
func (blockChain *BlockChain) SetParentBlocksToReturn(blocks map[common.Hash]*types.Block) {
if blockChain.parentBlocksToReturn == nil {
blockChain.parentBlocksToReturn = make(map[common.Hash]*types.Block)
}
blockChain.parentBlocksToReturn = blocks
}
// GetBlockByHash mock method
func (blockChain *BlockChain) GetBlockByHash(hash common.Hash) *types.Block {
blockChain.ParentHashesLookedUp = append(blockChain.ParentHashesLookedUp, hash)
var parentBlock *types.Block
if len(blockChain.parentBlocksToReturn) > 0 {
parentBlock = blockChain.parentBlocksToReturn[hash]
}
return parentBlock
}
// SetChainEvents mock method
func (blockChain *BlockChain) SetChainEvents(chainEvents []core.ChainEvent) {
blockChain.ChainEvents = chainEvents
}
// SubscribeChainEvent mock method
func (blockChain *BlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
subErr := errors.New("Subscription Error")
var eventCounter int
subscription := event.NewSubscription(func(quit <-chan struct{}) error {
for _, chainEvent := range blockChain.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 mock method
func (blockChain *BlockChain) SetReceiptsForHash(hash common.Hash, receipts types.Receipts) {
if blockChain.Receipts == nil {
blockChain.Receipts = make(map[common.Hash]types.Receipts)
}
blockChain.Receipts[hash] = receipts
}
// GetReceiptsByHash mock method
func (blockChain *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
return blockChain.Receipts[hash]
}