62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package mocks
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import (
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"errors"
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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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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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func (mc *BlockChain) AddToStateDiffProcessedCollection(hash common.Hash) {}
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func (mc *BlockChain) SetParentBlocksToReturn(blocks []*types.Block) {
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mc.parentBlocksToReturn = blocks
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}
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func (mc *BlockChain) GetBlockByHash(hash common.Hash) *types.Block {
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mc.ParentHashesLookedUp = append(mc.ParentHashesLookedUp, hash)
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var parentBlock *types.Block
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if len(mc.parentBlocksToReturn) > 0 {
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parentBlock = mc.parentBlocksToReturn[mc.callCount]
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}
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mc.callCount++
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return parentBlock
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}
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func (bc *BlockChain) SetChainEvents(chainEvents []core.ChainEvent) {
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bc.ChainEvents = chainEvents
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}
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func (bc *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 bc.ChainEvents {
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if eventCounter > 1 {
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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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