// 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 . package common_test import ( "bytes" "io/ioutil" "log" "math/big" "os" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/core/types" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" "github.com/vulcanize/vulcanizedb/pkg/fakes" vulcCommon "github.com/vulcanize/vulcanizedb/pkg/geth/converters/common" "github.com/vulcanize/vulcanizedb/pkg/geth/converters/rpc" ) var _ = Describe("Conversion of GethBlock to core.Block", func() { It("converts basic Block metadata", func() { difficulty := big.NewInt(1) gasLimit := uint64(100000) gasUsed := uint64(100000) miner := common.HexToAddress("0x0000000000000000000000000000000000000123") extraData, _ := hexutil.Decode("0xe4b883e5bda9e7a59ee4bb99e9b1bc") nonce := types.BlockNonce{10} number := int64(1) time := int64(140000000) header := types.Header{ Difficulty: difficulty, GasLimit: uint64(gasLimit), GasUsed: uint64(gasUsed), Extra: extraData, Coinbase: miner, Nonce: nonce, Number: big.NewInt(number), ParentHash: common.Hash{64}, Time: big.NewInt(time), UncleHash: common.Hash{128}, } block := types.NewBlock(&header, []*types.Transaction{}, []*types.Header{}, []*types.Receipt{}) client := fakes.NewMockEthClient() transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) Expect(coreBlock.Difficulty).To(Equal(difficulty.Int64())) Expect(coreBlock.GasLimit).To(Equal(gasLimit)) Expect(coreBlock.Miner).To(Equal(miner.Hex())) Expect(coreBlock.GasUsed).To(Equal(gasUsed)) Expect(coreBlock.Hash).To(Equal(block.Hash().Hex())) Expect(coreBlock.Nonce).To(Equal(hexutil.Encode(header.Nonce[:]))) Expect(coreBlock.Number).To(Equal(number)) Expect(coreBlock.ParentHash).To(Equal(block.ParentHash().Hex())) Expect(coreBlock.ExtraData).To(Equal(hexutil.Encode(block.Extra()))) Expect(coreBlock.Size).To(Equal(block.Size().String())) Expect(coreBlock.Time).To(Equal(time)) Expect(coreBlock.UncleHash).To(Equal(block.UncleHash().Hex())) Expect(coreBlock.IsFinal).To(BeFalse()) }) Describe("The block and uncle rewards calculations", func() { It("calculates block rewards for a block", func() { transaction := types.NewTransaction( uint64(226823), common.HexToAddress("0x108fedb097c1dcfed441480170144d8e19bb217f"), big.NewInt(1080900090000000000), uint64(90000), big.NewInt(50000000000), []byte{}, ) transactions := []*types.Transaction{transaction} txHash := transaction.Hash() receipt := types.Receipt{ TxHash: txHash, GasUsed: uint64(21000), CumulativeGasUsed: uint64(21000), } receipts := []*types.Receipt{&receipt} client := fakes.NewMockEthClient() client.SetTransactionReceipts(receipts) number := int64(1071819) header := types.Header{ Number: big.NewInt(number), } uncles := []*types.Header{{Number: big.NewInt(1071817)}, {Number: big.NewInt(1071818)}} block := types.NewBlock(&header, transactions, uncles, []*types.Receipt{&receipt}) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) expectedBlockReward := new(big.Int) expectedBlockReward.SetString("5313550000000000000", 10) blockReward := vulcCommon.CalcBlockReward(coreBlock, block.Uncles()) Expect(blockReward.String()).To(Equal(expectedBlockReward.String())) }) It("calculates the uncles reward for a block", func() { transaction := types.NewTransaction( uint64(226823), common.HexToAddress("0x108fedb097c1dcfed441480170144d8e19bb217f"), big.NewInt(1080900090000000000), uint64(90000), big.NewInt(50000000000), []byte{}) transactions := []*types.Transaction{transaction} receipt := types.Receipt{ TxHash: transaction.Hash(), GasUsed: uint64(21000), CumulativeGasUsed: uint64(21000), } receipts := []*types.Receipt{&receipt} header := types.Header{ Number: big.NewInt(int64(1071819)), } uncles := []*types.Header{ {Number: big.NewInt(1071816)}, {Number: big.NewInt(1071817)}, } block := types.NewBlock(&header, transactions, uncles, receipts) client := fakes.NewMockEthClient() client.SetTransactionReceipts(receipts) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) expectedTotalReward := new(big.Int) expectedTotalReward.SetString("6875000000000000000", 10) totalReward, coreUncles := blockConverter.ToCoreUncle(coreBlock, block.Uncles()) Expect(totalReward.String()).To(Equal(expectedTotalReward.String())) Expect(len(coreUncles)).To(Equal(2)) Expect(coreUncles[0].Reward).To(Equal("3125000000000000000")) Expect(coreUncles[0].Miner).To(Equal("0x0000000000000000000000000000000000000000")) Expect(coreUncles[0].Hash).To(Equal("0xb629de4014b6e30cf9555ee833f1806fa0d8b8516fde194405f9c98c2deb8772")) Expect(coreUncles[1].Reward).To(Equal("3750000000000000000")) Expect(coreUncles[1].Miner).To(Equal("0x0000000000000000000000000000000000000000")) Expect(coreUncles[1].Hash).To(Equal("0x673f5231e4888a951e0bc8a25b5774b982e6e9e258362c21affaff6e02dd5a2b")) }) It("decreases the static block reward from 5 to 3 for blocks after block 4,269,999", func() { transactionOne := types.NewTransaction( uint64(8072), common.HexToAddress("0xebd17720aeb7ac5186c5dfa7bafeb0bb14c02551 "), big.NewInt(0), uint64(500000), big.NewInt(42000000000), []byte{}, ) transactionTwo := types.NewTransaction(uint64(8071), common.HexToAddress("0x3cdab63d764c8c5048ed5e8f0a4e95534ba7e1ea"), big.NewInt(0), uint64(500000), big.NewInt(42000000000), []byte{}) transactions := []*types.Transaction{transactionOne, transactionTwo} receiptOne := types.Receipt{ TxHash: transactionOne.Hash(), GasUsed: uint64(297508), CumulativeGasUsed: uint64(0), } receiptTwo := types.Receipt{ TxHash: transactionTwo.Hash(), GasUsed: uint64(297508), CumulativeGasUsed: uint64(0), } receipts := []*types.Receipt{&receiptOne, &receiptTwo} number := int64(4370055) header := types.Header{ Number: big.NewInt(number), } var uncles []*types.Header block := types.NewBlock(&header, transactions, uncles, receipts) client := fakes.NewMockEthClient() client.SetTransactionReceipts(receipts) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) expectedRewards := new(big.Int) expectedRewards.SetString("3024990672000000000", 10) rewards := vulcCommon.CalcBlockReward(coreBlock, block.Uncles()) Expect(rewards.String()).To(Equal(expectedRewards.String())) }) }) Describe("the converted transactions", func() { It("is empty", func() { header := types.Header{} block := types.NewBlock(&header, []*types.Transaction{}, []*types.Header{}, []*types.Receipt{}) client := fakes.NewMockEthClient() transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) Expect(len(coreBlock.Transactions)).To(Equal(0)) }) It("converts a single transaction", func() { gethTransaction := types.NewTransaction( uint64(10000), common.Address{1}, big.NewInt(10), uint64(5000), big.NewInt(3), hexutil.MustDecode("0xf7d8c8830000000000000000000000000000000000000000000000000000000000037788000000000000000000000000000000000000000000000000000000000003bd14"), ) var rawTransaction bytes.Buffer encodeErr := gethTransaction.EncodeRLP(&rawTransaction) Expect(encodeErr).NotTo(HaveOccurred()) gethReceipt := &types.Receipt{ Bloom: types.BytesToBloom(hexutil.MustDecode("0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000")), ContractAddress: common.HexToAddress("x123"), CumulativeGasUsed: uint64(7996119), GasUsed: uint64(21000), Logs: []*types.Log{}, Status: uint64(1), TxHash: gethTransaction.Hash(), } client := fakes.NewMockEthClient() client.SetTransactionReceipts([]*types.Receipt{gethReceipt}) header := types.Header{} block := types.NewBlock( &header, []*types.Transaction{gethTransaction}, []*types.Header{}, []*types.Receipt{gethReceipt}, ) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) Expect(len(coreBlock.Transactions)).To(Equal(1)) coreTransaction := coreBlock.Transactions[0] expectedData := common.FromHex("0xf7d8c8830000000000000000000000000000000000000000000000000000000000037788000000000000000000000000000000000000000000000000000000000003bd14") Expect(coreTransaction.Data).To(Equal(expectedData)) Expect(coreTransaction.To).To(Equal(gethTransaction.To().Hex())) Expect(coreTransaction.From).To(Equal("0x0000000000000000000000000000000000000123")) Expect(coreTransaction.GasLimit).To(Equal(gethTransaction.Gas())) Expect(coreTransaction.GasPrice).To(Equal(gethTransaction.GasPrice().Int64())) Expect(coreTransaction.Raw).To(Equal(rawTransaction.Bytes())) Expect(coreTransaction.TxIndex).To(Equal(int64(0))) Expect(coreTransaction.Value).To(Equal(gethTransaction.Value().String())) Expect(coreTransaction.Nonce).To(Equal(gethTransaction.Nonce())) coreReceipt := coreTransaction.Receipt expectedReceipt := vulcCommon.ToCoreReceipt(gethReceipt) Expect(coreReceipt).To(Equal(expectedReceipt)) }) It("has an empty 'To' field when transaction creates a new contract", func() { gethTransaction := types.NewContractCreation( uint64(10000), big.NewInt(10), uint64(5000), big.NewInt(3), []byte("1234"), ) gethReceipt := &types.Receipt{ CumulativeGasUsed: uint64(1), GasUsed: uint64(1), TxHash: gethTransaction.Hash(), ContractAddress: common.HexToAddress("0x1023342345"), } client := fakes.NewMockEthClient() client.SetTransactionReceipts([]*types.Receipt{gethReceipt}) block := types.NewBlock( &types.Header{}, []*types.Transaction{gethTransaction}, []*types.Header{}, []*types.Receipt{gethReceipt}, ) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) coreBlock, err := blockConverter.ToCoreBlock(block) Expect(err).ToNot(HaveOccurred()) coreTransaction := coreBlock.Transactions[0] Expect(coreTransaction.To).To(Equal("")) coreReceipt := coreTransaction.Receipt expectedReceipt := vulcCommon.ToCoreReceipt(gethReceipt) Expect(coreReceipt).To(Equal(expectedReceipt)) }) }) Describe("transaction error handling", func() { var gethTransaction *types.Transaction var gethReceipt *types.Receipt var header *types.Header var block *types.Block BeforeEach(func() { log.SetOutput(ioutil.Discard) gethTransaction = types.NewTransaction( uint64(0), common.Address{}, big.NewInt(0), uint64(0), big.NewInt(0), []byte{}, ) gethReceipt = &types.Receipt{} header = &types.Header{} block = types.NewBlock( header, []*types.Transaction{gethTransaction}, []*types.Header{}, []*types.Receipt{gethReceipt}, ) }) AfterEach(func() { defer log.SetOutput(os.Stdout) }) It("returns an error when transaction sender call fails", func() { client := fakes.NewMockEthClient() client.SetTransactionSenderErr(fakes.FakeError) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) _, err := blockConverter.ToCoreBlock(block) Expect(err).To(MatchError(fakes.FakeError)) }) It("returns an error when transaction receipt call fails", func() { client := fakes.NewMockEthClient() client.SetTransactionReceiptErr(fakes.FakeError) transactionConverter := rpc.NewRpcTransactionConverter(client) blockConverter := vulcCommon.NewBlockConverter(transactionConverter) _, err := blockConverter.ToCoreBlock(block) Expect(err).To(MatchError(fakes.FakeError)) }) }) })