1400 lines
50 KiB
Go
1400 lines
50 KiB
Go
// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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//
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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package backends
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import (
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"bytes"
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"context"
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"errors"
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"math/big"
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"math/rand"
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"reflect"
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"strings"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/params"
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)
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func TestSimulatedBackend(t *testing.T) {
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var gasLimit uint64 = 8000029
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key, _ := crypto.GenerateKey() // nolint: gosec
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auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
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genAlloc := make(core.GenesisAlloc)
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genAlloc[auth.From] = core.GenesisAccount{Balance: big.NewInt(9223372036854775807)}
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sim := NewSimulatedBackend(genAlloc, gasLimit)
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defer sim.Close()
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// should return an error if the tx is not found
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txHash := common.HexToHash("2")
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_, isPending, err := sim.TransactionByHash(context.Background(), txHash)
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if isPending {
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t.Fatal("transaction should not be pending")
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}
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if err != ethereum.NotFound {
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t.Fatalf("err should be `ethereum.NotFound` but received %v", err)
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}
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// generate a transaction and confirm you can retrieve it
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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code := `6060604052600a8060106000396000f360606040526008565b00`
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var gas uint64 = 3000000
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tx := types.NewContractCreation(0, big.NewInt(0), gas, gasPrice, common.FromHex(code))
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tx, _ = types.SignTx(tx, types.HomesteadSigner{}, key)
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err = sim.SendTransaction(context.Background(), tx)
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if err != nil {
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t.Fatal("error sending transaction")
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}
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txHash = tx.Hash()
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_, isPending, err = sim.TransactionByHash(context.Background(), txHash)
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if err != nil {
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t.Fatalf("error getting transaction with hash: %v", txHash.String())
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}
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if !isPending {
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t.Fatal("transaction should have pending status")
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}
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sim.Commit()
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_, isPending, err = sim.TransactionByHash(context.Background(), txHash)
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if err != nil {
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t.Fatalf("error getting transaction with hash: %v", txHash.String())
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}
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if isPending {
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t.Fatal("transaction should not have pending status")
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}
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}
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var testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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// the following is based on this contract:
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//
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// contract T {
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// event received(address sender, uint amount, bytes memo);
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// event receivedAddr(address sender);
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//
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// function receive(bytes calldata memo) external payable returns (string memory res) {
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// emit received(msg.sender, msg.value, memo);
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// emit receivedAddr(msg.sender);
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// return "hello world";
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// }
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// }
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const abiJSON = `[ { "constant": false, "inputs": [ { "name": "memo", "type": "bytes" } ], "name": "receive", "outputs": [ { "name": "res", "type": "string" } ], "payable": true, "stateMutability": "payable", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "sender", "type": "address" }, { "indexed": false, "name": "amount", "type": "uint256" }, { "indexed": false, "name": "memo", "type": "bytes" } ], "name": "received", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "sender", "type": "address" } ], "name": "receivedAddr", "type": "event" } ]`
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const abiBin = `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`
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const deployedCode = `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`
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// expected return value contains "hello world"
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var expectedReturn = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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func simTestBackend(testAddr common.Address) *SimulatedBackend {
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return NewSimulatedBackend(
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core.GenesisAlloc{
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testAddr: {Balance: big.NewInt(10000000000000000)},
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}, 10000000,
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)
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}
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func TestNewSimulatedBackend(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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expectedBal := big.NewInt(10000000000000000)
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sim := simTestBackend(testAddr)
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defer sim.Close()
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if sim.config != params.AllEthashProtocolChanges {
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t.Errorf("expected sim config to equal params.AllEthashProtocolChanges, got %v", sim.config)
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}
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if sim.blockchain.Config() != params.AllEthashProtocolChanges {
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t.Errorf("expected sim blockchain config to equal params.AllEthashProtocolChanges, got %v", sim.config)
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}
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stateDB, _ := sim.blockchain.State()
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bal := stateDB.GetBalance(testAddr)
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if bal.Cmp(expectedBal) != 0 {
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t.Errorf("expected balance for test address not received. expected: %v actual: %v", expectedBal, bal)
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}
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}
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func TestAdjustTime(t *testing.T) {
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sim := NewSimulatedBackend(
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core.GenesisAlloc{}, 10000000,
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)
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defer sim.Close()
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prevTime := sim.pendingBlock.Time()
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if err := sim.AdjustTime(time.Second); err != nil {
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t.Error(err)
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}
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newTime := sim.pendingBlock.Time()
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if newTime-prevTime != uint64(time.Second.Seconds()) {
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t.Errorf("adjusted time not equal to a second. prev: %v, new: %v", prevTime, newTime)
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}
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}
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func TestNewAdjustTimeFail(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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sim := simTestBackend(testAddr)
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// Create tx and send
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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tx := types.NewTransaction(0, testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
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if err != nil {
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t.Errorf("could not sign tx: %v", err)
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}
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sim.SendTransaction(context.Background(), signedTx)
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// AdjustTime should fail on non-empty block
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if err := sim.AdjustTime(time.Second); err == nil {
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t.Error("Expected adjust time to error on non-empty block")
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}
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sim.Commit()
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prevTime := sim.pendingBlock.Time()
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if err := sim.AdjustTime(time.Minute); err != nil {
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t.Error(err)
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}
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newTime := sim.pendingBlock.Time()
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if newTime-prevTime != uint64(time.Minute.Seconds()) {
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t.Errorf("adjusted time not equal to a minute. prev: %v, new: %v", prevTime, newTime)
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}
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// Put a transaction after adjusting time
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tx2 := types.NewTransaction(1, testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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signedTx2, err := types.SignTx(tx2, types.HomesteadSigner{}, testKey)
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if err != nil {
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t.Errorf("could not sign tx: %v", err)
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}
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sim.SendTransaction(context.Background(), signedTx2)
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sim.Commit()
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newTime = sim.pendingBlock.Time()
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if newTime-prevTime >= uint64(time.Minute.Seconds()) {
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t.Errorf("time adjusted, but shouldn't be: prev: %v, new: %v", prevTime, newTime)
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}
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}
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func TestBalanceAt(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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expectedBal := big.NewInt(10000000000000000)
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sim := simTestBackend(testAddr)
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defer sim.Close()
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bgCtx := context.Background()
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bal, err := sim.BalanceAt(bgCtx, testAddr, nil)
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if err != nil {
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t.Error(err)
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}
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if bal.Cmp(expectedBal) != 0 {
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t.Errorf("expected balance for test address not received. expected: %v actual: %v", expectedBal, bal)
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}
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}
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func TestBlockByHash(t *testing.T) {
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sim := NewSimulatedBackend(
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core.GenesisAlloc{}, 10000000,
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)
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defer sim.Close()
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bgCtx := context.Background()
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block, err := sim.BlockByNumber(bgCtx, nil)
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if err != nil {
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t.Errorf("could not get recent block: %v", err)
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}
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blockByHash, err := sim.BlockByHash(bgCtx, block.Hash())
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if err != nil {
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t.Errorf("could not get recent block: %v", err)
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}
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if block.Hash() != blockByHash.Hash() {
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t.Errorf("did not get expected block")
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}
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}
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func TestBlockByNumber(t *testing.T) {
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sim := NewSimulatedBackend(
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core.GenesisAlloc{}, 10000000,
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)
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defer sim.Close()
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bgCtx := context.Background()
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block, err := sim.BlockByNumber(bgCtx, nil)
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if err != nil {
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t.Errorf("could not get recent block: %v", err)
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}
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if block.NumberU64() != 0 {
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t.Errorf("did not get most recent block, instead got block number %v", block.NumberU64())
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}
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// create one block
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sim.Commit()
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block, err = sim.BlockByNumber(bgCtx, nil)
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if err != nil {
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t.Errorf("could not get recent block: %v", err)
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}
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if block.NumberU64() != 1 {
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t.Errorf("did not get most recent block, instead got block number %v", block.NumberU64())
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}
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blockByNumber, err := sim.BlockByNumber(bgCtx, big.NewInt(1))
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if err != nil {
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t.Errorf("could not get block by number: %v", err)
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}
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if blockByNumber.Hash() != block.Hash() {
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t.Errorf("did not get the same block with height of 1 as before")
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}
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}
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func TestNonceAt(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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sim := simTestBackend(testAddr)
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defer sim.Close()
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bgCtx := context.Background()
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nonce, err := sim.NonceAt(bgCtx, testAddr, big.NewInt(0))
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if err != nil {
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t.Errorf("could not get nonce for test addr: %v", err)
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}
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if nonce != uint64(0) {
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t.Errorf("received incorrect nonce. expected 0, got %v", nonce)
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}
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// create a signed transaction to send
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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tx := types.NewTransaction(nonce, testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
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if err != nil {
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t.Errorf("could not sign tx: %v", err)
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}
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// send tx to simulated backend
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err = sim.SendTransaction(bgCtx, signedTx)
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if err != nil {
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t.Errorf("could not add tx to pending block: %v", err)
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}
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sim.Commit()
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newNonce, err := sim.NonceAt(bgCtx, testAddr, big.NewInt(1))
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if err != nil {
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t.Errorf("could not get nonce for test addr: %v", err)
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}
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if newNonce != nonce+uint64(1) {
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t.Errorf("received incorrect nonce. expected 1, got %v", nonce)
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}
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// create some more blocks
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sim.Commit()
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// Check that we can get data for an older block/state
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newNonce, err = sim.NonceAt(bgCtx, testAddr, big.NewInt(1))
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if err != nil {
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t.Fatalf("could not get nonce for test addr: %v", err)
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}
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if newNonce != nonce+uint64(1) {
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t.Fatalf("received incorrect nonce. expected 1, got %v", nonce)
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}
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}
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func TestSendTransaction(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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sim := simTestBackend(testAddr)
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defer sim.Close()
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bgCtx := context.Background()
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// create a signed transaction to send
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
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if err != nil {
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t.Errorf("could not sign tx: %v", err)
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}
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// send tx to simulated backend
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err = sim.SendTransaction(bgCtx, signedTx)
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if err != nil {
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t.Errorf("could not add tx to pending block: %v", err)
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}
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sim.Commit()
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block, err := sim.BlockByNumber(bgCtx, big.NewInt(1))
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if err != nil {
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t.Errorf("could not get block at height 1: %v", err)
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}
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if signedTx.Hash() != block.Transactions()[0].Hash() {
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t.Errorf("did not commit sent transaction. expected hash %v got hash %v", block.Transactions()[0].Hash(), signedTx.Hash())
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}
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}
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func TestTransactionByHash(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
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sim := NewSimulatedBackend(
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core.GenesisAlloc{
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testAddr: {Balance: big.NewInt(10000000000000000)},
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}, 10000000,
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)
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defer sim.Close()
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bgCtx := context.Background()
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// create a signed transaction to send
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
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if err != nil {
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t.Errorf("could not sign tx: %v", err)
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}
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// send tx to simulated backend
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err = sim.SendTransaction(bgCtx, signedTx)
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if err != nil {
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t.Errorf("could not add tx to pending block: %v", err)
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}
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// ensure tx is committed pending
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receivedTx, pending, err := sim.TransactionByHash(bgCtx, signedTx.Hash())
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if err != nil {
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t.Errorf("could not get transaction by hash %v: %v", signedTx.Hash(), err)
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}
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if !pending {
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t.Errorf("expected transaction to be in pending state")
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}
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|
if receivedTx.Hash() != signedTx.Hash() {
|
|
t.Errorf("did not received committed transaction. expected hash %v got hash %v", signedTx.Hash(), receivedTx.Hash())
|
|
}
|
|
|
|
sim.Commit()
|
|
|
|
// ensure tx is not and committed pending
|
|
receivedTx, pending, err = sim.TransactionByHash(bgCtx, signedTx.Hash())
|
|
if err != nil {
|
|
t.Errorf("could not get transaction by hash %v: %v", signedTx.Hash(), err)
|
|
}
|
|
if pending {
|
|
t.Errorf("expected transaction to not be in pending state")
|
|
}
|
|
if receivedTx.Hash() != signedTx.Hash() {
|
|
t.Errorf("did not received committed transaction. expected hash %v got hash %v", signedTx.Hash(), receivedTx.Hash())
|
|
}
|
|
}
|
|
|
|
func TestEstimateGas(t *testing.T) {
|
|
/*
|
|
pragma solidity ^0.6.4;
|
|
contract GasEstimation {
|
|
function PureRevert() public { revert(); }
|
|
function Revert() public { revert("revert reason");}
|
|
function OOG() public { for (uint i = 0; ; i++) {}}
|
|
function Assert() public { assert(false);}
|
|
function Valid() public {}
|
|
}
|
|
*/
|
|
const contractAbi = "[{\"inputs\":[],\"name\":\"Assert\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"OOG\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"PureRevert\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"Revert\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"Valid\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]"
|
|
const contractBin = "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"
|
|
|
|
key, _ := crypto.GenerateKey()
|
|
addr := crypto.PubkeyToAddress(key.PublicKey)
|
|
opts, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
|
|
|
|
sim := NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(params.Ether)}}, 10000000)
|
|
defer sim.Close()
|
|
|
|
parsed, _ := abi.JSON(strings.NewReader(contractAbi))
|
|
contractAddr, _, _, _ := bind.DeployContract(opts, parsed, common.FromHex(contractBin), sim)
|
|
sim.Commit()
|
|
|
|
var cases = []struct {
|
|
name string
|
|
message ethereum.CallMsg
|
|
expect uint64
|
|
expectError error
|
|
expectData interface{}
|
|
}{
|
|
{"plain transfer(valid)", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &addr,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(0),
|
|
Value: big.NewInt(1),
|
|
Data: nil,
|
|
}, params.TxGas, nil, nil},
|
|
|
|
{"plain transfer(invalid)", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(0),
|
|
Value: big.NewInt(1),
|
|
Data: nil,
|
|
}, 0, errors.New("execution reverted"), nil},
|
|
|
|
{"Revert", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(0),
|
|
Value: nil,
|
|
Data: common.Hex2Bytes("d8b98391"),
|
|
}, 0, errors.New("execution reverted: revert reason"), "0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000d72657665727420726561736f6e00000000000000000000000000000000000000"},
|
|
|
|
{"PureRevert", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(0),
|
|
Value: nil,
|
|
Data: common.Hex2Bytes("aa8b1d30"),
|
|
}, 0, errors.New("execution reverted"), nil},
|
|
|
|
{"OOG", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 100000,
|
|
GasPrice: big.NewInt(0),
|
|
Value: nil,
|
|
Data: common.Hex2Bytes("50f6fe34"),
|
|
}, 0, errors.New("gas required exceeds allowance (100000)"), nil},
|
|
|
|
{"Assert", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 100000,
|
|
GasPrice: big.NewInt(0),
|
|
Value: nil,
|
|
Data: common.Hex2Bytes("b9b046f9"),
|
|
}, 0, errors.New("invalid opcode: INVALID"), nil},
|
|
|
|
{"Valid", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &contractAddr,
|
|
Gas: 100000,
|
|
GasPrice: big.NewInt(0),
|
|
Value: nil,
|
|
Data: common.Hex2Bytes("e09fface"),
|
|
}, 21275, nil, nil},
|
|
}
|
|
for _, c := range cases {
|
|
got, err := sim.EstimateGas(context.Background(), c.message)
|
|
if c.expectError != nil {
|
|
if err == nil {
|
|
t.Fatalf("Expect error, got nil")
|
|
}
|
|
if c.expectError.Error() != err.Error() {
|
|
t.Fatalf("Expect error, want %v, got %v", c.expectError, err)
|
|
}
|
|
if c.expectData != nil {
|
|
if err, ok := err.(*revertError); !ok {
|
|
t.Fatalf("Expect revert error, got %T", err)
|
|
} else if !reflect.DeepEqual(err.ErrorData(), c.expectData) {
|
|
t.Fatalf("Error data mismatch, want %v, got %v", c.expectData, err.ErrorData())
|
|
}
|
|
}
|
|
continue
|
|
}
|
|
if got != c.expect {
|
|
t.Fatalf("Gas estimation mismatch, want %d, got %d", c.expect, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEstimateGasWithPrice(t *testing.T) {
|
|
key, _ := crypto.GenerateKey()
|
|
addr := crypto.PubkeyToAddress(key.PublicKey)
|
|
|
|
sim := NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(params.Ether*2 + 2e17)}}, 10000000)
|
|
defer sim.Close()
|
|
|
|
recipient := common.HexToAddress("deadbeef")
|
|
var cases = []struct {
|
|
name string
|
|
message ethereum.CallMsg
|
|
expect uint64
|
|
expectError error
|
|
}{
|
|
{"EstimateWithoutPrice", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &recipient,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(0),
|
|
Value: big.NewInt(100000000000),
|
|
Data: nil,
|
|
}, 21000, nil},
|
|
|
|
{"EstimateWithPrice", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &recipient,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(100000000000),
|
|
Value: big.NewInt(100000000000),
|
|
Data: nil,
|
|
}, 21000, nil},
|
|
|
|
{"EstimateWithVeryHighPrice", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &recipient,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(1e14), // gascost = 2.1ether
|
|
Value: big.NewInt(1e17), // the remaining balance for fee is 2.1ether
|
|
Data: nil,
|
|
}, 21000, nil},
|
|
|
|
{"EstimateWithSuperhighPrice", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &recipient,
|
|
Gas: 0,
|
|
GasPrice: big.NewInt(2e14), // gascost = 4.2ether
|
|
Value: big.NewInt(100000000000),
|
|
Data: nil,
|
|
}, 21000, errors.New("gas required exceeds allowance (10999)")}, // 10999=(2.2ether-1000wei)/(2e14)
|
|
|
|
{"EstimateEIP1559WithHighFees", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &addr,
|
|
Gas: 0,
|
|
GasFeeCap: big.NewInt(1e14), // maxgascost = 2.1ether
|
|
GasTipCap: big.NewInt(1),
|
|
Value: big.NewInt(1e17), // the remaining balance for fee is 2.1ether
|
|
Data: nil,
|
|
}, params.TxGas, nil},
|
|
|
|
{"EstimateEIP1559WithSuperHighFees", ethereum.CallMsg{
|
|
From: addr,
|
|
To: &addr,
|
|
Gas: 0,
|
|
GasFeeCap: big.NewInt(1e14), // maxgascost = 2.1ether
|
|
GasTipCap: big.NewInt(1),
|
|
Value: big.NewInt(1e17 + 1), // the remaining balance for fee is 2.1ether
|
|
Data: nil,
|
|
}, params.TxGas, errors.New("gas required exceeds allowance (20999)")}, // 20999=(2.2ether-0.1ether-1wei)/(1e14)
|
|
}
|
|
for i, c := range cases {
|
|
got, err := sim.EstimateGas(context.Background(), c.message)
|
|
if c.expectError != nil {
|
|
if err == nil {
|
|
t.Fatalf("test %d: expect error, got nil", i)
|
|
}
|
|
if c.expectError.Error() != err.Error() {
|
|
t.Fatalf("test %d: expect error, want %v, got %v", i, c.expectError, err)
|
|
}
|
|
continue
|
|
}
|
|
if c.expectError == nil && err != nil {
|
|
t.Fatalf("test %d: didn't expect error, got %v", i, err)
|
|
}
|
|
if got != c.expect {
|
|
t.Fatalf("test %d: gas estimation mismatch, want %d, got %d", i, c.expect, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestHeaderByHash(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
header, err := sim.HeaderByNumber(bgCtx, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get recent block: %v", err)
|
|
}
|
|
headerByHash, err := sim.HeaderByHash(bgCtx, header.Hash())
|
|
if err != nil {
|
|
t.Errorf("could not get recent block: %v", err)
|
|
}
|
|
|
|
if header.Hash() != headerByHash.Hash() {
|
|
t.Errorf("did not get expected block")
|
|
}
|
|
}
|
|
|
|
func TestHeaderByNumber(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
latestBlockHeader, err := sim.HeaderByNumber(bgCtx, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get header for tip of chain: %v", err)
|
|
}
|
|
if latestBlockHeader == nil {
|
|
t.Errorf("received a nil block header")
|
|
} else if latestBlockHeader.Number.Uint64() != uint64(0) {
|
|
t.Errorf("expected block header number 0, instead got %v", latestBlockHeader.Number.Uint64())
|
|
}
|
|
|
|
sim.Commit()
|
|
|
|
latestBlockHeader, err = sim.HeaderByNumber(bgCtx, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get header for blockheight of 1: %v", err)
|
|
}
|
|
|
|
blockHeader, err := sim.HeaderByNumber(bgCtx, big.NewInt(1))
|
|
if err != nil {
|
|
t.Errorf("could not get header for blockheight of 1: %v", err)
|
|
}
|
|
|
|
if blockHeader.Hash() != latestBlockHeader.Hash() {
|
|
t.Errorf("block header and latest block header are not the same")
|
|
}
|
|
if blockHeader.Number.Int64() != int64(1) {
|
|
t.Errorf("did not get blockheader for block 1. instead got block %v", blockHeader.Number.Int64())
|
|
}
|
|
|
|
block, err := sim.BlockByNumber(bgCtx, big.NewInt(1))
|
|
if err != nil {
|
|
t.Errorf("could not get block for blockheight of 1: %v", err)
|
|
}
|
|
|
|
if block.Hash() != blockHeader.Hash() {
|
|
t.Errorf("block hash and block header hash do not match. expected %v, got %v", block.Hash(), blockHeader.Hash())
|
|
}
|
|
}
|
|
|
|
func TestTransactionCount(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
currentBlock, err := sim.BlockByNumber(bgCtx, nil)
|
|
if err != nil || currentBlock == nil {
|
|
t.Error("could not get current block")
|
|
}
|
|
|
|
count, err := sim.TransactionCount(bgCtx, currentBlock.Hash())
|
|
if err != nil {
|
|
t.Error("could not get current block's transaction count")
|
|
}
|
|
|
|
if count != 0 {
|
|
t.Errorf("expected transaction count of %v does not match actual count of %v", 0, count)
|
|
}
|
|
// create a signed transaction to send
|
|
head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
|
gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
|
|
|
|
tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
|
|
if err != nil {
|
|
t.Errorf("could not sign tx: %v", err)
|
|
}
|
|
|
|
// send tx to simulated backend
|
|
err = sim.SendTransaction(bgCtx, signedTx)
|
|
if err != nil {
|
|
t.Errorf("could not add tx to pending block: %v", err)
|
|
}
|
|
|
|
sim.Commit()
|
|
|
|
lastBlock, err := sim.BlockByNumber(bgCtx, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get header for tip of chain: %v", err)
|
|
}
|
|
|
|
count, err = sim.TransactionCount(bgCtx, lastBlock.Hash())
|
|
if err != nil {
|
|
t.Error("could not get current block's transaction count")
|
|
}
|
|
|
|
if count != 1 {
|
|
t.Errorf("expected transaction count of %v does not match actual count of %v", 1, count)
|
|
}
|
|
}
|
|
|
|
func TestTransactionInBlock(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
transaction, err := sim.TransactionInBlock(bgCtx, sim.pendingBlock.Hash(), uint(0))
|
|
if err == nil && err != errTransactionDoesNotExist {
|
|
t.Errorf("expected a transaction does not exist error to be received but received %v", err)
|
|
}
|
|
if transaction != nil {
|
|
t.Errorf("expected transaction to be nil but received %v", transaction)
|
|
}
|
|
|
|
// expect pending nonce to be 0 since account has not been used
|
|
pendingNonce, err := sim.PendingNonceAt(bgCtx, testAddr)
|
|
if err != nil {
|
|
t.Errorf("did not get the pending nonce: %v", err)
|
|
}
|
|
|
|
if pendingNonce != uint64(0) {
|
|
t.Errorf("expected pending nonce of 0 got %v", pendingNonce)
|
|
}
|
|
// create a signed transaction to send
|
|
head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
|
gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
|
|
|
|
tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
|
|
if err != nil {
|
|
t.Errorf("could not sign tx: %v", err)
|
|
}
|
|
|
|
// send tx to simulated backend
|
|
err = sim.SendTransaction(bgCtx, signedTx)
|
|
if err != nil {
|
|
t.Errorf("could not add tx to pending block: %v", err)
|
|
}
|
|
|
|
sim.Commit()
|
|
|
|
lastBlock, err := sim.BlockByNumber(bgCtx, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get header for tip of chain: %v", err)
|
|
}
|
|
|
|
transaction, err = sim.TransactionInBlock(bgCtx, lastBlock.Hash(), uint(1))
|
|
if err == nil && err != errTransactionDoesNotExist {
|
|
t.Errorf("expected a transaction does not exist error to be received but received %v", err)
|
|
}
|
|
if transaction != nil {
|
|
t.Errorf("expected transaction to be nil but received %v", transaction)
|
|
}
|
|
|
|
transaction, err = sim.TransactionInBlock(bgCtx, lastBlock.Hash(), uint(0))
|
|
if err != nil {
|
|
t.Errorf("could not get transaction in the lastest block with hash %v: %v", lastBlock.Hash().String(), err)
|
|
}
|
|
|
|
if signedTx.Hash().String() != transaction.Hash().String() {
|
|
t.Errorf("received transaction that did not match the sent transaction. expected hash %v, got hash %v", signedTx.Hash().String(), transaction.Hash().String())
|
|
}
|
|
}
|
|
|
|
func TestPendingNonceAt(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
// expect pending nonce to be 0 since account has not been used
|
|
pendingNonce, err := sim.PendingNonceAt(bgCtx, testAddr)
|
|
if err != nil {
|
|
t.Errorf("did not get the pending nonce: %v", err)
|
|
}
|
|
|
|
if pendingNonce != uint64(0) {
|
|
t.Errorf("expected pending nonce of 0 got %v", pendingNonce)
|
|
}
|
|
|
|
// create a signed transaction to send
|
|
head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
|
gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
|
|
|
|
tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
|
|
if err != nil {
|
|
t.Errorf("could not sign tx: %v", err)
|
|
}
|
|
|
|
// send tx to simulated backend
|
|
err = sim.SendTransaction(bgCtx, signedTx)
|
|
if err != nil {
|
|
t.Errorf("could not add tx to pending block: %v", err)
|
|
}
|
|
|
|
// expect pending nonce to be 1 since account has submitted one transaction
|
|
pendingNonce, err = sim.PendingNonceAt(bgCtx, testAddr)
|
|
if err != nil {
|
|
t.Errorf("did not get the pending nonce: %v", err)
|
|
}
|
|
|
|
if pendingNonce != uint64(1) {
|
|
t.Errorf("expected pending nonce of 1 got %v", pendingNonce)
|
|
}
|
|
|
|
// make a new transaction with a nonce of 1
|
|
tx = types.NewTransaction(uint64(1), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
signedTx, err = types.SignTx(tx, types.HomesteadSigner{}, testKey)
|
|
if err != nil {
|
|
t.Errorf("could not sign tx: %v", err)
|
|
}
|
|
err = sim.SendTransaction(bgCtx, signedTx)
|
|
if err != nil {
|
|
t.Errorf("could not send tx: %v", err)
|
|
}
|
|
|
|
// expect pending nonce to be 2 since account now has two transactions
|
|
pendingNonce, err = sim.PendingNonceAt(bgCtx, testAddr)
|
|
if err != nil {
|
|
t.Errorf("did not get the pending nonce: %v", err)
|
|
}
|
|
|
|
if pendingNonce != uint64(2) {
|
|
t.Errorf("expected pending nonce of 2 got %v", pendingNonce)
|
|
}
|
|
}
|
|
|
|
func TestTransactionReceipt(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
// create a signed transaction to send
|
|
head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
|
gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
|
|
|
|
tx := types.NewTransaction(uint64(0), testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
signedTx, err := types.SignTx(tx, types.HomesteadSigner{}, testKey)
|
|
if err != nil {
|
|
t.Errorf("could not sign tx: %v", err)
|
|
}
|
|
|
|
// send tx to simulated backend
|
|
err = sim.SendTransaction(bgCtx, signedTx)
|
|
if err != nil {
|
|
t.Errorf("could not add tx to pending block: %v", err)
|
|
}
|
|
sim.Commit()
|
|
|
|
receipt, err := sim.TransactionReceipt(bgCtx, signedTx.Hash())
|
|
if err != nil {
|
|
t.Errorf("could not get transaction receipt: %v", err)
|
|
}
|
|
|
|
if receipt.ContractAddress != testAddr && receipt.TxHash != signedTx.Hash() {
|
|
t.Errorf("received receipt is not correct: %v", receipt)
|
|
}
|
|
}
|
|
|
|
func TestSuggestGasPrice(t *testing.T) {
|
|
sim := NewSimulatedBackend(
|
|
core.GenesisAlloc{},
|
|
10000000,
|
|
)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
gasPrice, err := sim.SuggestGasPrice(bgCtx)
|
|
if err != nil {
|
|
t.Errorf("could not get gas price: %v", err)
|
|
}
|
|
if gasPrice.Uint64() != sim.pendingBlock.Header().BaseFee.Uint64() {
|
|
t.Errorf("gas price was not expected value of %v. actual: %v", sim.pendingBlock.Header().BaseFee.Uint64(), gasPrice.Uint64())
|
|
}
|
|
}
|
|
|
|
func TestPendingCodeAt(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
code, err := sim.CodeAt(bgCtx, testAddr, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
if len(code) != 0 {
|
|
t.Errorf("got code for account that does not have contract code")
|
|
}
|
|
|
|
parsed, err := abi.JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
auth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
|
|
contractAddr, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(abiBin), sim)
|
|
if err != nil {
|
|
t.Errorf("could not deploy contract: %v tx: %v contract: %v", err, tx, contract)
|
|
}
|
|
|
|
code, err = sim.PendingCodeAt(bgCtx, contractAddr)
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
if len(code) == 0 {
|
|
t.Errorf("did not get code for account that has contract code")
|
|
}
|
|
// ensure code received equals code deployed
|
|
if !bytes.Equal(code, common.FromHex(deployedCode)) {
|
|
t.Errorf("code received did not match expected deployed code:\n expected %v\n actual %v", common.FromHex(deployedCode), code)
|
|
}
|
|
}
|
|
|
|
func TestCodeAt(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
code, err := sim.CodeAt(bgCtx, testAddr, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
if len(code) != 0 {
|
|
t.Errorf("got code for account that does not have contract code")
|
|
}
|
|
|
|
parsed, err := abi.JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
auth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
|
|
contractAddr, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(abiBin), sim)
|
|
if err != nil {
|
|
t.Errorf("could not deploy contract: %v tx: %v contract: %v", err, tx, contract)
|
|
}
|
|
|
|
sim.Commit()
|
|
code, err = sim.CodeAt(bgCtx, contractAddr, nil)
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
if len(code) == 0 {
|
|
t.Errorf("did not get code for account that has contract code")
|
|
}
|
|
// ensure code received equals code deployed
|
|
if !bytes.Equal(code, common.FromHex(deployedCode)) {
|
|
t.Errorf("code received did not match expected deployed code:\n expected %v\n actual %v", common.FromHex(deployedCode), code)
|
|
}
|
|
}
|
|
|
|
// When receive("X") is called with sender 0x00... and value 1, it produces this tx receipt:
|
|
//
|
|
// receipt{status=1 cgas=23949 bloom=00000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000040200000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 logs=[log: b6818c8064f645cd82d99b59a1a267d6d61117ef [75fd880d39c1daf53b6547ab6cb59451fc6452d27caa90e5b6649dd8293b9eed] 000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158 9ae378b6d4409eada347a5dc0c180f186cb62dc68fcc0f043425eb917335aa28 0 95d429d309bb9d753954195fe2d69bd140b4ae731b9b5b605c34323de162cf00 0]}
|
|
func TestPendingAndCallContract(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
parsed, err := abi.JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
contractAuth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
|
|
addr, _, _, err := bind.DeployContract(contractAuth, parsed, common.FromHex(abiBin), sim)
|
|
if err != nil {
|
|
t.Errorf("could not deploy contract: %v", err)
|
|
}
|
|
|
|
input, err := parsed.Pack("receive", []byte("X"))
|
|
if err != nil {
|
|
t.Errorf("could not pack receive function on contract: %v", err)
|
|
}
|
|
|
|
// make sure you can call the contract in pending state
|
|
res, err := sim.PendingCallContract(bgCtx, ethereum.CallMsg{
|
|
From: testAddr,
|
|
To: &addr,
|
|
Data: input,
|
|
})
|
|
if err != nil {
|
|
t.Errorf("could not call receive method on contract: %v", err)
|
|
}
|
|
if len(res) == 0 {
|
|
t.Errorf("result of contract call was empty: %v", res)
|
|
}
|
|
|
|
// while comparing against the byte array is more exact, also compare against the human readable string for readability
|
|
if !bytes.Equal(res, expectedReturn) || !strings.Contains(string(res), "hello world") {
|
|
t.Errorf("response from calling contract was expected to be 'hello world' instead received %v", string(res))
|
|
}
|
|
|
|
sim.Commit()
|
|
|
|
// make sure you can call the contract
|
|
res, err = sim.CallContract(bgCtx, ethereum.CallMsg{
|
|
From: testAddr,
|
|
To: &addr,
|
|
Data: input,
|
|
}, nil)
|
|
if err != nil {
|
|
t.Errorf("could not call receive method on contract: %v", err)
|
|
}
|
|
if len(res) == 0 {
|
|
t.Errorf("result of contract call was empty: %v", res)
|
|
}
|
|
|
|
if !bytes.Equal(res, expectedReturn) || !strings.Contains(string(res), "hello world") {
|
|
t.Errorf("response from calling contract was expected to be 'hello world' instead received %v", string(res))
|
|
}
|
|
}
|
|
|
|
// This test is based on the following contract:
|
|
/*
|
|
contract Reverter {
|
|
function revertString() public pure{
|
|
require(false, "some error");
|
|
}
|
|
function revertNoString() public pure {
|
|
require(false, "");
|
|
}
|
|
function revertASM() public pure {
|
|
assembly {
|
|
revert(0x0, 0x0)
|
|
}
|
|
}
|
|
function noRevert() public pure {
|
|
assembly {
|
|
// Assembles something that looks like require(false, "some error") but is not reverted
|
|
mstore(0x0, 0x08c379a000000000000000000000000000000000000000000000000000000000)
|
|
mstore(0x4, 0x0000000000000000000000000000000000000000000000000000000000000020)
|
|
mstore(0x24, 0x000000000000000000000000000000000000000000000000000000000000000a)
|
|
mstore(0x44, 0x736f6d65206572726f7200000000000000000000000000000000000000000000)
|
|
return(0x0, 0x64)
|
|
}
|
|
}
|
|
}*/
|
|
func TestCallContractRevert(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
bgCtx := context.Background()
|
|
|
|
reverterABI := `[{"inputs": [],"name": "noRevert","outputs": [],"stateMutability": "pure","type": "function"},{"inputs": [],"name": "revertASM","outputs": [],"stateMutability": "pure","type": "function"},{"inputs": [],"name": "revertNoString","outputs": [],"stateMutability": "pure","type": "function"},{"inputs": [],"name": "revertString","outputs": [],"stateMutability": "pure","type": "function"}]`
|
|
reverterBin := "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"
|
|
|
|
parsed, err := abi.JSON(strings.NewReader(reverterABI))
|
|
if err != nil {
|
|
t.Errorf("could not get code at test addr: %v", err)
|
|
}
|
|
contractAuth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
|
|
addr, _, _, err := bind.DeployContract(contractAuth, parsed, common.FromHex(reverterBin), sim)
|
|
if err != nil {
|
|
t.Errorf("could not deploy contract: %v", err)
|
|
}
|
|
|
|
inputs := make(map[string]interface{}, 3)
|
|
inputs["revertASM"] = nil
|
|
inputs["revertNoString"] = ""
|
|
inputs["revertString"] = "some error"
|
|
|
|
call := make([]func([]byte) ([]byte, error), 2)
|
|
call[0] = func(input []byte) ([]byte, error) {
|
|
return sim.PendingCallContract(bgCtx, ethereum.CallMsg{
|
|
From: testAddr,
|
|
To: &addr,
|
|
Data: input,
|
|
})
|
|
}
|
|
call[1] = func(input []byte) ([]byte, error) {
|
|
return sim.CallContract(bgCtx, ethereum.CallMsg{
|
|
From: testAddr,
|
|
To: &addr,
|
|
Data: input,
|
|
}, nil)
|
|
}
|
|
|
|
// Run pending calls then commit
|
|
for _, cl := range call {
|
|
for key, val := range inputs {
|
|
input, err := parsed.Pack(key)
|
|
if err != nil {
|
|
t.Errorf("could not pack %v function on contract: %v", key, err)
|
|
}
|
|
|
|
res, err := cl(input)
|
|
if err == nil {
|
|
t.Errorf("call to %v was not reverted", key)
|
|
}
|
|
if res != nil {
|
|
t.Errorf("result from %v was not nil: %v", key, res)
|
|
}
|
|
if val != nil {
|
|
rerr, ok := err.(*revertError)
|
|
if !ok {
|
|
t.Errorf("expect revert error")
|
|
}
|
|
if rerr.Error() != "execution reverted: "+val.(string) {
|
|
t.Errorf("error was malformed: got %v want %v", rerr.Error(), val)
|
|
}
|
|
} else {
|
|
// revert(0x0,0x0)
|
|
if err.Error() != "execution reverted" {
|
|
t.Errorf("error was malformed: got %v want %v", err, "execution reverted")
|
|
}
|
|
}
|
|
}
|
|
input, err := parsed.Pack("noRevert")
|
|
if err != nil {
|
|
t.Errorf("could not pack noRevert function on contract: %v", err)
|
|
}
|
|
res, err := cl(input)
|
|
if err != nil {
|
|
t.Error("call to noRevert was reverted")
|
|
}
|
|
if res == nil {
|
|
t.Errorf("result from noRevert was nil")
|
|
}
|
|
sim.Commit()
|
|
}
|
|
}
|
|
|
|
// TestFork check that the chain length after a reorg is correct.
|
|
// Steps:
|
|
// 1. Save the current block which will serve as parent for the fork.
|
|
// 2. Mine n blocks with n ∈ [0, 20].
|
|
// 3. Assert that the chain length is n.
|
|
// 4. Fork by using the parent block as ancestor.
|
|
// 5. Mine n+1 blocks which should trigger a reorg.
|
|
// 6. Assert that the chain length is n+1.
|
|
// Since Commit() was called 2n+1 times in total,
|
|
// having a chain length of just n+1 means that a reorg occurred.
|
|
func TestFork(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
// 1.
|
|
parent := sim.blockchain.CurrentBlock()
|
|
// 2.
|
|
n := int(rand.Int31n(21))
|
|
for i := 0; i < n; i++ {
|
|
sim.Commit()
|
|
}
|
|
// 3.
|
|
if sim.blockchain.CurrentBlock().Number.Uint64() != uint64(n) {
|
|
t.Error("wrong chain length")
|
|
}
|
|
// 4.
|
|
sim.Fork(context.Background(), parent.Hash())
|
|
// 5.
|
|
for i := 0; i < n+1; i++ {
|
|
sim.Commit()
|
|
}
|
|
// 6.
|
|
if sim.blockchain.CurrentBlock().Number.Uint64() != uint64(n+1) {
|
|
t.Error("wrong chain length")
|
|
}
|
|
}
|
|
|
|
/*
|
|
Example contract to test event emission:
|
|
|
|
pragma solidity >=0.7.0 <0.9.0;
|
|
contract Callable {
|
|
event Called();
|
|
function Call() public { emit Called(); }
|
|
}
|
|
*/
|
|
const callableAbi = "[{\"anonymous\":false,\"inputs\":[],\"name\":\"Called\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"Call\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]"
|
|
|
|
const callableBin = "6080604052348015600f57600080fd5b5060998061001e6000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c806334e2292114602d575b600080fd5b60336035565b005b7f81fab7a4a0aa961db47eefc81f143a5220e8c8495260dd65b1356f1d19d3c7b860405160405180910390a156fea2646970667358221220029436d24f3ac598ceca41d4d712e13ced6d70727f4cdc580667de66d2f51d8b64736f6c63430008010033"
|
|
|
|
// TestForkLogsReborn check that the simulated reorgs
|
|
// correctly remove and reborn logs.
|
|
// Steps:
|
|
// 1. Deploy the Callable contract.
|
|
// 2. Set up an event subscription.
|
|
// 3. Save the current block which will serve as parent for the fork.
|
|
// 4. Send a transaction.
|
|
// 5. Check that the event was included.
|
|
// 6. Fork by using the parent block as ancestor.
|
|
// 7. Mine two blocks to trigger a reorg.
|
|
// 8. Check that the event was removed.
|
|
// 9. Re-send the transaction and mine a block.
|
|
// 10. Check that the event was reborn.
|
|
func TestForkLogsReborn(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
// 1.
|
|
parsed, _ := abi.JSON(strings.NewReader(callableAbi))
|
|
auth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
|
|
_, _, contract, err := bind.DeployContract(auth, parsed, common.FromHex(callableBin), sim)
|
|
if err != nil {
|
|
t.Errorf("deploying contract: %v", err)
|
|
}
|
|
sim.Commit()
|
|
// 2.
|
|
logs, sub, err := contract.WatchLogs(nil, "Called")
|
|
if err != nil {
|
|
t.Errorf("watching logs: %v", err)
|
|
}
|
|
defer sub.Unsubscribe()
|
|
// 3.
|
|
parent := sim.blockchain.CurrentBlock()
|
|
// 4.
|
|
tx, err := contract.Transact(auth, "Call")
|
|
if err != nil {
|
|
t.Errorf("transacting: %v", err)
|
|
}
|
|
sim.Commit()
|
|
// 5.
|
|
log := <-logs
|
|
if log.TxHash != tx.Hash() {
|
|
t.Error("wrong event tx hash")
|
|
}
|
|
if log.Removed {
|
|
t.Error("Event should be included")
|
|
}
|
|
// 6.
|
|
if err := sim.Fork(context.Background(), parent.Hash()); err != nil {
|
|
t.Errorf("forking: %v", err)
|
|
}
|
|
// 7.
|
|
sim.Commit()
|
|
sim.Commit()
|
|
// 8.
|
|
log = <-logs
|
|
if log.TxHash != tx.Hash() {
|
|
t.Error("wrong event tx hash")
|
|
}
|
|
if !log.Removed {
|
|
t.Error("Event should be removed")
|
|
}
|
|
// 9.
|
|
if err := sim.SendTransaction(context.Background(), tx); err != nil {
|
|
t.Errorf("sending transaction: %v", err)
|
|
}
|
|
sim.Commit()
|
|
// 10.
|
|
log = <-logs
|
|
if log.TxHash != tx.Hash() {
|
|
t.Error("wrong event tx hash")
|
|
}
|
|
if log.Removed {
|
|
t.Error("Event should be included")
|
|
}
|
|
}
|
|
|
|
// TestForkResendTx checks that re-sending a TX after a fork
|
|
// is possible and does not cause a "nonce mismatch" panic.
|
|
// Steps:
|
|
// 1. Save the current block which will serve as parent for the fork.
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// 2. Send a transaction.
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// 3. Check that the TX is included in block 1.
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// 4. Fork by using the parent block as ancestor.
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// 5. Mine a block, Re-send the transaction and mine another one.
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// 6. Check that the TX is now included in block 2.
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func TestForkResendTx(t *testing.T) {
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testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
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sim := simTestBackend(testAddr)
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defer sim.Close()
|
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// 1.
|
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parent := sim.blockchain.CurrentBlock()
|
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// 2.
|
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head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
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gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
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|
|
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_tx := types.NewTransaction(0, testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
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tx, _ := types.SignTx(_tx, types.HomesteadSigner{}, testKey)
|
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sim.SendTransaction(context.Background(), tx)
|
|
sim.Commit()
|
|
// 3.
|
|
receipt, _ := sim.TransactionReceipt(context.Background(), tx.Hash())
|
|
if h := receipt.BlockNumber.Uint64(); h != 1 {
|
|
t.Errorf("TX included in wrong block: %d", h)
|
|
}
|
|
// 4.
|
|
if err := sim.Fork(context.Background(), parent.Hash()); err != nil {
|
|
t.Errorf("forking: %v", err)
|
|
}
|
|
// 5.
|
|
sim.Commit()
|
|
if err := sim.SendTransaction(context.Background(), tx); err != nil {
|
|
t.Errorf("sending transaction: %v", err)
|
|
}
|
|
sim.Commit()
|
|
// 6.
|
|
receipt, _ = sim.TransactionReceipt(context.Background(), tx.Hash())
|
|
if h := receipt.BlockNumber.Uint64(); h != 2 {
|
|
t.Errorf("TX included in wrong block: %d", h)
|
|
}
|
|
}
|
|
|
|
func TestCommitReturnValue(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
|
|
startBlockHeight := sim.blockchain.CurrentBlock().Number.Uint64()
|
|
|
|
// Test if Commit returns the correct block hash
|
|
h1 := sim.Commit()
|
|
if h1 != sim.blockchain.CurrentBlock().Hash() {
|
|
t.Error("Commit did not return the hash of the last block.")
|
|
}
|
|
|
|
// Create a block in the original chain (containing a transaction to force different block hashes)
|
|
head, _ := sim.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
|
|
gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
|
|
_tx := types.NewTransaction(0, testAddr, big.NewInt(1000), params.TxGas, gasPrice, nil)
|
|
tx, _ := types.SignTx(_tx, types.HomesteadSigner{}, testKey)
|
|
sim.SendTransaction(context.Background(), tx)
|
|
h2 := sim.Commit()
|
|
|
|
// Create another block in the original chain
|
|
sim.Commit()
|
|
|
|
// Fork at the first bock
|
|
if err := sim.Fork(context.Background(), h1); err != nil {
|
|
t.Errorf("forking: %v", err)
|
|
}
|
|
|
|
// Test if Commit returns the correct block hash after the reorg
|
|
h2fork := sim.Commit()
|
|
if h2 == h2fork {
|
|
t.Error("The block in the fork and the original block are the same block!")
|
|
}
|
|
if sim.blockchain.GetHeader(h2fork, startBlockHeight+2) == nil {
|
|
t.Error("Could not retrieve the just created block (side-chain)")
|
|
}
|
|
}
|
|
|
|
// TestAdjustTimeAfterFork ensures that after a fork, AdjustTime uses the pending fork
|
|
// block's parent rather than the canonical head's parent.
|
|
func TestAdjustTimeAfterFork(t *testing.T) {
|
|
testAddr := crypto.PubkeyToAddress(testKey.PublicKey)
|
|
sim := simTestBackend(testAddr)
|
|
defer sim.Close()
|
|
|
|
sim.Commit() // h1
|
|
h1 := sim.blockchain.CurrentHeader().Hash()
|
|
sim.Commit() // h2
|
|
sim.Fork(context.Background(), h1)
|
|
sim.AdjustTime(1 * time.Second)
|
|
sim.Commit()
|
|
|
|
head := sim.blockchain.CurrentHeader()
|
|
if head.Number == common.Big2 && head.ParentHash != h1 {
|
|
t.Errorf("failed to build block on fork")
|
|
}
|
|
}
|