forked from cerc-io/ipld-eth-server
131 lines
4.7 KiB
Go
131 lines
4.7 KiB
Go
// Copyright 2019 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fetcher_test
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/statediff"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/vulcanize/vulcanizedb/libraries/shared/fetcher"
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"github.com/vulcanize/vulcanizedb/libraries/shared/storage/utils"
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"github.com/vulcanize/vulcanizedb/libraries/shared/test_data"
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"github.com/vulcanize/vulcanizedb/pkg/fakes"
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)
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type MockStoragediffStreamer struct {
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subscribeError error
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PassedPayloadChan chan statediff.Payload
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streamPayloads []statediff.Payload
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}
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func (streamer *MockStoragediffStreamer) Stream(statediffPayloadChan chan statediff.Payload) (*rpc.ClientSubscription, error) {
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clientSubscription := rpc.ClientSubscription{}
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streamer.PassedPayloadChan = statediffPayloadChan
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go func() {
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for _, payload := range streamer.streamPayloads {
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streamer.PassedPayloadChan <- payload
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}
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}()
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return &clientSubscription, streamer.subscribeError
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}
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func (streamer *MockStoragediffStreamer) SetSubscribeError(err error) {
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streamer.subscribeError = err
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}
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func (streamer *MockStoragediffStreamer) SetPayloads(payloads []statediff.Payload) {
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streamer.streamPayloads = payloads
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}
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var _ = Describe("Geth RPC Storage Fetcher", func() {
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var streamer MockStoragediffStreamer
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var statediffPayloadChan chan statediff.Payload
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var statediffFetcher fetcher.GethRpcStorageFetcher
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var storagediffRowChan chan utils.StorageDiffRow
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var errorChan chan error
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BeforeEach(func() {
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streamer = MockStoragediffStreamer{}
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statediffPayloadChan = make(chan statediff.Payload, 1)
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statediffFetcher = fetcher.NewGethRpcStorageFetcher(&streamer, statediffPayloadChan)
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storagediffRowChan = make(chan utils.StorageDiffRow)
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errorChan = make(chan error)
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})
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It("adds errors to error channel if the RPC subscription fails ", func(done Done) {
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streamer.SetSubscribeError(fakes.FakeError)
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go statediffFetcher.FetchStorageDiffs(storagediffRowChan, errorChan)
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Expect(<-errorChan).To(MatchError(fakes.FakeError))
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close(done)
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})
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It("streams StatediffPayloads from a Geth RPC subscription", func(done Done) {
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streamer.SetPayloads([]statediff.Payload{test_data.MockStatediffPayload})
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go statediffFetcher.FetchStorageDiffs(storagediffRowChan, errorChan)
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streamedPayload := <-statediffPayloadChan
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Expect(streamedPayload).To(Equal(test_data.MockStatediffPayload))
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Expect(streamer.PassedPayloadChan).To(Equal(statediffPayloadChan))
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close(done)
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})
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It("adds parsed statediff payloads to the rows channel", func(done Done) {
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streamer.SetPayloads([]statediff.Payload{test_data.MockStatediffPayload})
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go statediffFetcher.FetchStorageDiffs(storagediffRowChan, errorChan)
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height := test_data.BlockNumber
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intHeight := int(height.Int64())
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expectedStorageDiffRow := utils.StorageDiffRow{
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//this is not the contract address, but the keccak 256 of the address
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Contract: common.BytesToAddress(test_data.ContractLeafKey[:]),
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BlockHash: common.HexToHash("0xfa40fbe2d98d98b3363a778d52f2bcd29d6790b9b3f3cab2b167fd12d3550f73"),
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BlockHeight: intHeight,
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StorageKey: common.BytesToHash(test_data.StorageKey),
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StorageValue: common.BytesToHash(test_data.StorageValue),
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}
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anotherExpectedStorageDiffRow := utils.StorageDiffRow{
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//this is not the contract address, but the keccak 256 of the address
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Contract: common.BytesToAddress(test_data.AnotherContractLeafKey[:]),
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BlockHash: common.HexToHash("0xfa40fbe2d98d98b3363a778d52f2bcd29d6790b9b3f3cab2b167fd12d3550f73"),
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BlockHeight: intHeight,
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StorageKey: common.BytesToHash(test_data.StorageKey),
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StorageValue: common.BytesToHash(test_data.StorageValue),
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}
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Expect(<-storagediffRowChan).To(Equal(expectedStorageDiffRow))
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Expect(<-storagediffRowChan).To(Equal(anotherExpectedStorageDiffRow))
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close(done)
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})
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It("adds errors to error channel if parsing the diff fails", func(done Done) {
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badStatediffPayload := statediff.Payload{}
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streamer.SetPayloads([]statediff.Payload{badStatediffPayload})
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go statediffFetcher.FetchStorageDiffs(storagediffRowChan, errorChan)
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Expect(<-errorChan).To(MatchError("EOF"))
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close(done)
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})
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})
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