ipld-eth-server/libraries/shared/storage/utils/diff_test.go

122 lines
4.3 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package utils_test
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/statediff"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/libraries/shared/storage/utils"
"github.com/vulcanize/vulcanizedb/libraries/shared/test_data"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"math/big"
"math/rand"
)
var _ = Describe("Storage row parsing", func() {
Describe("FromParityCsvRow", func() {
It("converts an array of strings to a row struct", func() {
contract := "0x123"
blockHash := "0x456"
blockHeight := "789"
storageKey := "0x987"
storageValue := "0x654"
data := []string{contract, blockHash, blockHeight, storageKey, storageValue}
result, err := utils.FromParityCsvRow(data)
Expect(err).NotTo(HaveOccurred())
expectedKeccakOfContractAddress := utils.HexToKeccak256Hash(contract)
Expect(result.HashedAddress).To(Equal(expectedKeccakOfContractAddress))
Expect(result.BlockHash).To(Equal(common.HexToHash(blockHash)))
Expect(result.BlockHeight).To(Equal(789))
Expect(result.StorageKey).To(Equal(common.HexToHash(storageKey)))
Expect(result.StorageValue).To(Equal(common.HexToHash(storageValue)))
})
It("returns an error if row is missing data", func() {
_, err := utils.FromParityCsvRow([]string{"0x123"})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(utils.ErrRowMalformed{Length: 1}))
})
It("returns error if block height malformed", func() {
_, err := utils.FromParityCsvRow([]string{"", "", "", "", ""})
Expect(err).To(HaveOccurred())
})
})
Describe("FromGethStateDiff", func() {
var (
accountDiff = statediff.AccountDiff{Key: []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0}}
stateDiff = &statediff.StateDiff{
BlockNumber: big.NewInt(rand.Int63()),
BlockHash: fakes.FakeHash,
}
)
It("adds relevant fields to diff", func() {
storageValueBytes := []byte{3}
storageValueRlp, encodeErr := rlp.EncodeToBytes(storageValueBytes)
Expect(encodeErr).NotTo(HaveOccurred())
storageDiff := statediff.StorageDiff{
Key: []byte{0, 9, 8, 7, 6, 5, 4, 3, 2, 1},
Value: storageValueRlp,
}
result, err := utils.FromGethStateDiff(accountDiff, stateDiff, storageDiff)
Expect(err).NotTo(HaveOccurred())
expectedAddress := common.BytesToHash(accountDiff.Key)
Expect(result.HashedAddress).To(Equal(expectedAddress))
Expect(result.BlockHash).To(Equal(fakes.FakeHash))
expectedBlockHeight := int(stateDiff.BlockNumber.Int64())
Expect(result.BlockHeight).To(Equal(expectedBlockHeight))
expectedStorageKey := common.BytesToHash(storageDiff.Key)
Expect(result.StorageKey).To(Equal(expectedStorageKey))
expectedStorageValue := common.BytesToHash(storageValueBytes)
Expect(result.StorageValue).To(Equal(expectedStorageValue))
})
It("handles decoding large storage values from their RLP", func() {
storageValueBytes := []byte{1, 2, 3, 4, 5, 0, 9, 8, 7, 6}
storageValueRlp, encodeErr := rlp.EncodeToBytes(storageValueBytes)
Expect(encodeErr).NotTo(HaveOccurred())
storageDiff := statediff.StorageDiff{
Key: []byte{0, 9, 8, 7, 6, 5, 4, 3, 2, 1},
Value: storageValueRlp,
}
result, err := utils.FromGethStateDiff(accountDiff, stateDiff, storageDiff)
Expect(err).NotTo(HaveOccurred())
Expect(result.StorageValue).To(Equal(common.BytesToHash(storageValueBytes)))
})
It("returns an err if decoding the storage value Rlp fails", func() {
_, err := utils.FromGethStateDiff(accountDiff, stateDiff, test_data.StorageWithBadValue)
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError("rlp: input contains more than one value"))
})
})
})