273 lines
9.1 KiB
Go
273 lines
9.1 KiB
Go
// 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 eth_test
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import (
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"context"
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"errors"
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"math/big"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core/types"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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vulcCore "github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/eth"
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"github.com/vulcanize/vulcanizedb/pkg/fakes"
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)
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var _ = Describe("Geth blockchain", func() {
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var (
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mockClient *fakes.MockEthClient
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blockChain *eth.BlockChain
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mockRpcClient *fakes.MockRPCClient
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mockTransactionConverter *fakes.MockTransactionConverter
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node vulcCore.Node
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)
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BeforeEach(func() {
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mockClient = fakes.NewMockEthClient()
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mockRpcClient = fakes.NewMockRPCClient()
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mockTransactionConverter = fakes.NewMockTransactionConverter()
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node = vulcCore.Node{}
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blockChain = eth.NewBlockChain(mockClient, mockRpcClient, node, mockTransactionConverter)
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})
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Describe("getting a block", func() {
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It("fetches block from ethClient", func() {
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mockClient.SetBlockByNumberReturnBlock(types.NewBlockWithHeader(&types.Header{}))
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blockNumber := int64(100)
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_, err := blockChain.GetBlockByNumber(blockNumber)
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Expect(err).NotTo(HaveOccurred())
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mockClient.AssertBlockByNumberCalledWith(context.Background(), big.NewInt(blockNumber))
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})
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It("returns err if ethClient returns err", func() {
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mockClient.SetBlockByNumberErr(fakes.FakeError)
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_, err := blockChain.GetBlockByNumber(100)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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})
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Describe("getting a header", func() {
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Describe("default/mainnet", func() {
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It("fetches header from ethClient", func() {
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blockNumber := int64(100)
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mockClient.SetHeaderByNumberReturnHeader(&types.Header{Number: big.NewInt(blockNumber)})
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_, err := blockChain.GetHeaderByNumber(blockNumber)
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Expect(err).NotTo(HaveOccurred())
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mockClient.AssertHeaderByNumberCalledWith(context.Background(), big.NewInt(blockNumber))
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})
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It("returns err if ethClient returns err", func() {
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mockClient.SetHeaderByNumberErr(fakes.FakeError)
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_, err := blockChain.GetHeaderByNumber(100)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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It("fetches headers with multiple blocks", func() {
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_, err := blockChain.GetHeadersByNumbers([]int64{100, 99})
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Expect(err).NotTo(HaveOccurred())
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mockRpcClient.AssertBatchCalledWith("eth_getBlockByNumber", 2)
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})
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})
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Describe("POA/Kovan", func() {
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It("fetches header from rpcClient", func() {
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node.NetworkID = vulcCore.KOVAN_NETWORK_ID
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blockNumber := hexutil.Big(*big.NewInt(100))
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mockRpcClient.SetReturnPOAHeader(vulcCore.POAHeader{Number: &blockNumber})
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blockChain = eth.NewBlockChain(mockClient, mockRpcClient, node, fakes.NewMockTransactionConverter())
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_, err := blockChain.GetHeaderByNumber(100)
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Expect(err).NotTo(HaveOccurred())
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mockRpcClient.AssertCallContextCalledWith(context.Background(), &vulcCore.POAHeader{}, "eth_getBlockByNumber")
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})
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It("returns err if rpcClient returns err", func() {
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node.NetworkID = vulcCore.KOVAN_NETWORK_ID
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mockRpcClient.SetCallContextErr(fakes.FakeError)
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blockChain = eth.NewBlockChain(mockClient, mockRpcClient, node, fakes.NewMockTransactionConverter())
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_, err := blockChain.GetHeaderByNumber(100)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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It("returns error if returned header is empty", func() {
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node.NetworkID = vulcCore.KOVAN_NETWORK_ID
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blockChain = eth.NewBlockChain(mockClient, mockRpcClient, node, fakes.NewMockTransactionConverter())
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_, err := blockChain.GetHeaderByNumber(100)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(eth.ErrEmptyHeader))
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})
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It("returns multiple headers with multiple blocknumbers", func() {
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node.NetworkID = vulcCore.KOVAN_NETWORK_ID
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blockNumber := hexutil.Big(*big.NewInt(100))
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mockRpcClient.SetReturnPOAHeaders([]vulcCore.POAHeader{{Number: &blockNumber}})
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_, err := blockChain.GetHeadersByNumbers([]int64{100, 99})
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Expect(err).NotTo(HaveOccurred())
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mockRpcClient.AssertBatchCalledWith("eth_getBlockByNumber", 2)
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})
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})
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})
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Describe("getting logs with default FilterQuery", func() {
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It("fetches logs from ethClient", func() {
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mockClient.SetFilterLogsReturnLogs([]types.Log{{}})
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contract := vulcCore.Contract{Hash: common.BytesToHash([]byte{1, 2, 3, 4, 5}).Hex()}
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startingBlockNumber := big.NewInt(1)
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endingBlockNumber := big.NewInt(2)
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_, err := blockChain.GetFullSyncLogs(contract, startingBlockNumber, endingBlockNumber)
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Expect(err).NotTo(HaveOccurred())
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expectedQuery := ethereum.FilterQuery{
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FromBlock: startingBlockNumber,
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ToBlock: endingBlockNumber,
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Addresses: []common.Address{common.HexToAddress(contract.Hash)},
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}
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mockClient.AssertFilterLogsCalledWith(context.Background(), expectedQuery)
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})
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It("returns err if ethClient returns err", func() {
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mockClient.SetFilterLogsErr(fakes.FakeError)
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contract := vulcCore.Contract{Hash: common.BytesToHash([]byte{1, 2, 3, 4, 5}).Hex()}
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startingBlockNumber := big.NewInt(1)
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endingBlockNumber := big.NewInt(2)
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_, err := blockChain.GetFullSyncLogs(contract, startingBlockNumber, endingBlockNumber)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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})
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Describe("getting logs with a custom FilterQuery", func() {
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It("fetches logs from ethClient", func() {
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mockClient.SetFilterLogsReturnLogs([]types.Log{{}})
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address := common.HexToAddress("0x")
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startingBlockNumber := big.NewInt(1)
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endingBlockNumber := big.NewInt(2)
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topic := common.HexToHash("0x")
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query := ethereum.FilterQuery{
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FromBlock: startingBlockNumber,
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ToBlock: endingBlockNumber,
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Addresses: []common.Address{address},
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Topics: [][]common.Hash{{topic}},
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}
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_, err := blockChain.GetEthLogsWithCustomQuery(query)
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Expect(err).NotTo(HaveOccurred())
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mockClient.AssertFilterLogsCalledWith(context.Background(), query)
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})
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It("returns err if ethClient returns err", func() {
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mockClient.SetFilterLogsErr(fakes.FakeError)
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contract := vulcCore.Contract{Hash: common.BytesToHash([]byte{1, 2, 3, 4, 5}).Hex()}
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startingBlockNumber := big.NewInt(1)
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endingBlockNumber := big.NewInt(2)
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query := ethereum.FilterQuery{
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FromBlock: startingBlockNumber,
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ToBlock: endingBlockNumber,
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Addresses: []common.Address{common.HexToAddress(contract.Hash)},
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Topics: nil,
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}
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_, err := blockChain.GetEthLogsWithCustomQuery(query)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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})
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Describe("getting transactions", func() {
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It("fetches transaction for each hash", func() {
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_, err := blockChain.GetTransactions([]common.Hash{{}, {}})
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Expect(err).NotTo(HaveOccurred())
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mockRpcClient.AssertBatchCalledWith("eth_getTransactionByHash", 2)
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})
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It("converts transaction indexes from hex to int", func() {
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_, err := blockChain.GetTransactions([]common.Hash{{}, {}})
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Expect(err).NotTo(HaveOccurred())
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Expect(mockTransactionConverter.ConvertHeaderTransactionIndexToIntCalled).To(BeTrue())
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})
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})
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Describe("getting the most recent block number", func() {
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It("fetches latest header from ethClient", func() {
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blockNumber := int64(100)
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mockClient.SetHeaderByNumberReturnHeader(&types.Header{Number: big.NewInt(blockNumber)})
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result, err := blockChain.LastBlock()
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Expect(err).NotTo(HaveOccurred())
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mockClient.AssertHeaderByNumberCalledWith(context.Background(), nil)
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Expect(result).To(Equal(big.NewInt(blockNumber)))
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})
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})
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Describe("getting an account balance", func() {
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It("fetches the balance for a given account address at a given block height", func() {
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balance := big.NewInt(100000)
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mockClient.SetBalanceAt(balance)
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result, err := blockChain.GetAccountBalance(common.HexToAddress("0x40"), big.NewInt(100))
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Expect(err).NotTo(HaveOccurred())
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mockClient.AssertBalanceAtCalled(context.Background(), common.HexToAddress("0x40"), big.NewInt(100))
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Expect(result).To(Equal(balance))
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})
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It("fails if the client returns an error", func() {
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balance := big.NewInt(100000)
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mockClient.SetBalanceAt(balance)
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setErr := errors.New("testError")
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mockClient.SetBalanceAtErr(setErr)
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_, err := blockChain.GetAccountBalance(common.HexToAddress("0x40"), big.NewInt(100))
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Expect(err).To(HaveOccurred())
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Expect(err).To(Equal(setErr))
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})
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})
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})
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