ipld-eth-server/libraries/shared/fetcher/geth_rpc_storage_fetcher_test.go
2019-09-25 16:32:31 -05:00

136 lines
4.7 KiB
Go

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