87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package mocks
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import (
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"errors"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/event"
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)
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// BlockChain is a mock blockchain for testing
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type BlockChain struct {
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ParentHashesLookedUp []common.Hash
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parentBlocksToReturn []*types.Block
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callCount int
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ChainEvents []core.ChainEvent
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}
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// AddToStateDiffProcessedCollection mock method
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func (blockChain *BlockChain) AddToStateDiffProcessedCollection(hash common.Hash) {}
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// SetParentBlocksToReturn mock method
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func (blockChain *BlockChain) SetParentBlocksToReturn(blocks []*types.Block) {
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blockChain.parentBlocksToReturn = blocks
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}
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// GetBlockByHash mock method
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func (blockChain *BlockChain) GetBlockByHash(hash common.Hash) *types.Block {
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blockChain.ParentHashesLookedUp = append(blockChain.ParentHashesLookedUp, hash)
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var parentBlock *types.Block
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if len(blockChain.parentBlocksToReturn) > 0 {
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parentBlock = blockChain.parentBlocksToReturn[blockChain.callCount]
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}
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blockChain.callCount++
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return parentBlock
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}
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// SetChainEvents mock method
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func (blockChain *BlockChain) SetChainEvents(chainEvents []core.ChainEvent) {
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blockChain.ChainEvents = chainEvents
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}
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// SubscribeChainEvent mock method
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func (blockChain *BlockChain) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
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subErr := errors.New("Subscription Error")
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var eventCounter int
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subscription := event.NewSubscription(func(quit <-chan struct{}) error {
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for _, chainEvent := range blockChain.ChainEvents {
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if eventCounter > 1 {
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time.Sleep(250 * time.Millisecond)
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return subErr
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}
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select {
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case ch <- chainEvent:
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case <-quit:
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return nil
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}
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eventCounter++
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}
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return nil
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})
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return subscription
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}
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