forked from cerc-io/ipld-eth-server
51 lines
1.7 KiB
Go
51 lines
1.7 KiB
Go
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// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero 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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// This program 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 Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. 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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"sync/atomic"
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"github.com/ethereum/go-ethereum/statediff"
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)
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// StateDiffFetcher mock for tests
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type StateDiffFetcher struct {
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PayloadsToReturn map[uint64]statediff.Payload
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FetchErrs map[uint64]error
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CalledAtBlockHeights [][]uint64
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CalledTimes int64
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}
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// FetchStateDiffsAt mock method
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func (fetcher *StateDiffFetcher) FetchAt(blockHeights []uint64) ([]interface{}, error) {
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if fetcher.PayloadsToReturn == nil {
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return nil, errors.New("mock StateDiffFetcher needs to be initialized with payloads to return")
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}
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atomic.AddInt64(&fetcher.CalledTimes, 1) // thread-safe increment
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fetcher.CalledAtBlockHeights = append(fetcher.CalledAtBlockHeights, blockHeights)
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results := make([]interface{}, 0, len(blockHeights))
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for _, height := range blockHeights {
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results = append(results, fetcher.PayloadsToReturn[height])
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err, ok := fetcher.FetchErrs[height]
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if ok && err != nil {
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return nil, err
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}
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}
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return results, nil
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}
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