b85c86022e
* api/bind: Add CallOpts.BlockHash to allow calling contracts at a specific block hash. * ethclient: Add BalanceAtHash, NonceAtHash and StorageAtHash functions
580 lines
19 KiB
Go
580 lines
19 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 bind_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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"reflect"
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"strings"
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"testing"
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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/common/hexutil"
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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/rlp"
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"github.com/stretchr/testify/assert"
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)
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func mockSign(addr common.Address, tx *types.Transaction) (*types.Transaction, error) { return tx, nil }
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type mockTransactor struct {
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baseFee *big.Int
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gasTipCap *big.Int
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gasPrice *big.Int
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suggestGasTipCapCalled bool
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suggestGasPriceCalled bool
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}
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func (mt *mockTransactor) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
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return &types.Header{BaseFee: mt.baseFee}, nil
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}
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func (mt *mockTransactor) PendingCodeAt(ctx context.Context, account common.Address) ([]byte, error) {
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return []byte{1}, nil
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}
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func (mt *mockTransactor) PendingNonceAt(ctx context.Context, account common.Address) (uint64, error) {
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return 0, nil
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}
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func (mt *mockTransactor) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
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mt.suggestGasPriceCalled = true
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return mt.gasPrice, nil
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}
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func (mt *mockTransactor) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
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mt.suggestGasTipCapCalled = true
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return mt.gasTipCap, nil
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}
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func (mt *mockTransactor) EstimateGas(ctx context.Context, call ethereum.CallMsg) (gas uint64, err error) {
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return 0, nil
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}
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func (mt *mockTransactor) SendTransaction(ctx context.Context, tx *types.Transaction) error {
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return nil
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}
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type mockCaller struct {
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codeAtBlockNumber *big.Int
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callContractBlockNumber *big.Int
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callContractBytes []byte
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callContractErr error
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codeAtBytes []byte
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codeAtErr error
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}
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func (mc *mockCaller) CodeAt(ctx context.Context, contract common.Address, blockNumber *big.Int) ([]byte, error) {
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mc.codeAtBlockNumber = blockNumber
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return mc.codeAtBytes, mc.codeAtErr
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}
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func (mc *mockCaller) CallContract(ctx context.Context, call ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) {
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mc.callContractBlockNumber = blockNumber
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return mc.callContractBytes, mc.callContractErr
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}
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type mockPendingCaller struct {
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*mockCaller
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pendingCodeAtBytes []byte
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pendingCodeAtErr error
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pendingCodeAtCalled bool
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pendingCallContractCalled bool
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pendingCallContractBytes []byte
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pendingCallContractErr error
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}
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func (mc *mockPendingCaller) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error) {
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mc.pendingCodeAtCalled = true
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return mc.pendingCodeAtBytes, mc.pendingCodeAtErr
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}
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func (mc *mockPendingCaller) PendingCallContract(ctx context.Context, call ethereum.CallMsg) ([]byte, error) {
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mc.pendingCallContractCalled = true
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return mc.pendingCallContractBytes, mc.pendingCallContractErr
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}
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type mockBlockHashCaller struct {
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*mockCaller
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codeAtHashBytes []byte
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codeAtHashErr error
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codeAtHashCalled bool
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callContractAtHashCalled bool
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callContractAtHashBytes []byte
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callContractAtHashErr error
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}
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func (mc *mockBlockHashCaller) CodeAtHash(ctx context.Context, contract common.Address, hash common.Hash) ([]byte, error) {
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mc.codeAtHashCalled = true
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return mc.codeAtHashBytes, mc.codeAtHashErr
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}
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func (mc *mockBlockHashCaller) CallContractAtHash(ctx context.Context, call ethereum.CallMsg, hash common.Hash) ([]byte, error) {
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mc.callContractAtHashCalled = true
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return mc.callContractAtHashBytes, mc.callContractAtHashErr
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}
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func TestPassingBlockNumber(t *testing.T) {
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mc := &mockPendingCaller{
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mockCaller: &mockCaller{
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codeAtBytes: []byte{1, 2, 3},
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},
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}
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), abi.ABI{
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Methods: map[string]abi.Method{
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"something": {
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Name: "something",
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Outputs: abi.Arguments{},
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},
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},
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}, mc, nil, nil)
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blockNumber := big.NewInt(42)
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bc.Call(&bind.CallOpts{BlockNumber: blockNumber}, nil, "something")
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if mc.callContractBlockNumber != blockNumber {
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t.Fatalf("CallContract() was not passed the block number")
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}
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if mc.codeAtBlockNumber != blockNumber {
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t.Fatalf("CodeAt() was not passed the block number")
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}
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bc.Call(&bind.CallOpts{}, nil, "something")
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if mc.callContractBlockNumber != nil {
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t.Fatalf("CallContract() was passed a block number when it should not have been")
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}
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if mc.codeAtBlockNumber != nil {
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t.Fatalf("CodeAt() was passed a block number when it should not have been")
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}
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bc.Call(&bind.CallOpts{BlockNumber: blockNumber, Pending: true}, nil, "something")
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if !mc.pendingCallContractCalled {
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t.Fatalf("CallContract() was not passed the block number")
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}
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if !mc.pendingCodeAtCalled {
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t.Fatalf("CodeAt() was not passed the block number")
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}
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}
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const hexData = "0x000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158"
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func TestUnpackIndexedStringTyLogIntoMap(t *testing.T) {
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hash := crypto.Keccak256Hash([]byte("testName"))
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topics := []common.Hash{
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crypto.Keccak256Hash([]byte("received(string,address,uint256,bytes)")),
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hash,
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}
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mockLog := newMockLog(topics, common.HexToHash("0x0"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":true,"name":"name","type":"string"},{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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expectedReceivedMap := map[string]interface{}{
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"name": hash,
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"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
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"amount": big.NewInt(1),
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"memo": []byte{88},
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}
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unpackAndCheck(t, bc, expectedReceivedMap, mockLog)
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}
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func TestUnpackAnonymousLogIntoMap(t *testing.T) {
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mockLog := newMockLog(nil, common.HexToHash("0x0"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":false,"name":"amount","type":"uint256"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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var received map[string]interface{}
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err := bc.UnpackLogIntoMap(received, "received", mockLog)
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if err == nil {
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t.Error("unpacking anonymous event is not supported")
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}
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if err.Error() != "no event signature" {
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t.Errorf("expected error 'no event signature', got '%s'", err)
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}
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}
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func TestUnpackIndexedSliceTyLogIntoMap(t *testing.T) {
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sliceBytes, err := rlp.EncodeToBytes([]string{"name1", "name2", "name3", "name4"})
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if err != nil {
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t.Fatal(err)
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}
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hash := crypto.Keccak256Hash(sliceBytes)
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topics := []common.Hash{
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crypto.Keccak256Hash([]byte("received(string[],address,uint256,bytes)")),
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hash,
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}
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mockLog := newMockLog(topics, common.HexToHash("0x0"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":true,"name":"names","type":"string[]"},{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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expectedReceivedMap := map[string]interface{}{
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"names": hash,
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"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
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"amount": big.NewInt(1),
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"memo": []byte{88},
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}
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unpackAndCheck(t, bc, expectedReceivedMap, mockLog)
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}
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func TestUnpackIndexedArrayTyLogIntoMap(t *testing.T) {
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arrBytes, err := rlp.EncodeToBytes([2]common.Address{common.HexToAddress("0x0"), common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2")})
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if err != nil {
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t.Fatal(err)
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}
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hash := crypto.Keccak256Hash(arrBytes)
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topics := []common.Hash{
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crypto.Keccak256Hash([]byte("received(address[2],address,uint256,bytes)")),
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hash,
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}
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mockLog := newMockLog(topics, common.HexToHash("0x0"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":true,"name":"addresses","type":"address[2]"},{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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expectedReceivedMap := map[string]interface{}{
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"addresses": hash,
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"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
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"amount": big.NewInt(1),
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"memo": []byte{88},
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}
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unpackAndCheck(t, bc, expectedReceivedMap, mockLog)
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}
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func TestUnpackIndexedFuncTyLogIntoMap(t *testing.T) {
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mockAddress := common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2")
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addrBytes := mockAddress.Bytes()
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hash := crypto.Keccak256Hash([]byte("mockFunction(address,uint)"))
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functionSelector := hash[:4]
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functionTyBytes := append(addrBytes, functionSelector...)
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var functionTy [24]byte
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copy(functionTy[:], functionTyBytes[0:24])
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topics := []common.Hash{
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crypto.Keccak256Hash([]byte("received(function,address,uint256,bytes)")),
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common.BytesToHash(functionTyBytes),
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}
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mockLog := newMockLog(topics, common.HexToHash("0x5c698f13940a2153440c6d19660878bc90219d9298fdcf37365aa8d88d40fc42"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":true,"name":"function","type":"function"},{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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expectedReceivedMap := map[string]interface{}{
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"function": functionTy,
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"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
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"amount": big.NewInt(1),
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"memo": []byte{88},
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}
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unpackAndCheck(t, bc, expectedReceivedMap, mockLog)
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}
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func TestUnpackIndexedBytesTyLogIntoMap(t *testing.T) {
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bytes := []byte{1, 2, 3, 4, 5}
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hash := crypto.Keccak256Hash(bytes)
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topics := []common.Hash{
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crypto.Keccak256Hash([]byte("received(bytes,address,uint256,bytes)")),
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hash,
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}
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mockLog := newMockLog(topics, common.HexToHash("0x5c698f13940a2153440c6d19660878bc90219d9298fdcf37365aa8d88d40fc42"))
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abiString := `[{"anonymous":false,"inputs":[{"indexed":true,"name":"content","type":"bytes"},{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
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parsedAbi, _ := abi.JSON(strings.NewReader(abiString))
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), parsedAbi, nil, nil, nil)
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expectedReceivedMap := map[string]interface{}{
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"content": hash,
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"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
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"amount": big.NewInt(1),
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"memo": []byte{88},
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}
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unpackAndCheck(t, bc, expectedReceivedMap, mockLog)
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}
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func TestTransactGasFee(t *testing.T) {
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assert := assert.New(t)
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// GasTipCap and GasFeeCap
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// When opts.GasTipCap and opts.GasFeeCap are nil
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mt := &mockTransactor{baseFee: big.NewInt(100), gasTipCap: big.NewInt(5)}
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bc := bind.NewBoundContract(common.Address{}, abi.ABI{}, nil, mt, nil)
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opts := &bind.TransactOpts{Signer: mockSign}
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tx, err := bc.Transact(opts, "")
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assert.Nil(err)
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assert.Equal(big.NewInt(5), tx.GasTipCap())
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assert.Equal(big.NewInt(205), tx.GasFeeCap())
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assert.Nil(opts.GasTipCap)
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assert.Nil(opts.GasFeeCap)
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assert.True(mt.suggestGasTipCapCalled)
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// Second call to Transact should use latest suggested GasTipCap
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mt.gasTipCap = big.NewInt(6)
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mt.suggestGasTipCapCalled = false
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tx, err = bc.Transact(opts, "")
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assert.Nil(err)
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assert.Equal(big.NewInt(6), tx.GasTipCap())
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assert.Equal(big.NewInt(206), tx.GasFeeCap())
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assert.True(mt.suggestGasTipCapCalled)
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// GasPrice
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// When opts.GasPrice is nil
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mt = &mockTransactor{gasPrice: big.NewInt(5)}
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bc = bind.NewBoundContract(common.Address{}, abi.ABI{}, nil, mt, nil)
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opts = &bind.TransactOpts{Signer: mockSign}
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tx, err = bc.Transact(opts, "")
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assert.Nil(err)
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assert.Equal(big.NewInt(5), tx.GasPrice())
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assert.Nil(opts.GasPrice)
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assert.True(mt.suggestGasPriceCalled)
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// Second call to Transact should use latest suggested GasPrice
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mt.gasPrice = big.NewInt(6)
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mt.suggestGasPriceCalled = false
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tx, err = bc.Transact(opts, "")
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assert.Nil(err)
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assert.Equal(big.NewInt(6), tx.GasPrice())
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assert.True(mt.suggestGasPriceCalled)
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}
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func unpackAndCheck(t *testing.T, bc *bind.BoundContract, expected map[string]interface{}, mockLog types.Log) {
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received := make(map[string]interface{})
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if err := bc.UnpackLogIntoMap(received, "received", mockLog); err != nil {
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t.Error(err)
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}
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if len(received) != len(expected) {
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t.Fatalf("unpacked map length %v not equal expected length of %v", len(received), len(expected))
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}
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for name, elem := range expected {
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if !reflect.DeepEqual(elem, received[name]) {
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t.Errorf("field %v does not match expected, want %v, got %v", name, elem, received[name])
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}
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}
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}
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func newMockLog(topics []common.Hash, txHash common.Hash) types.Log {
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return types.Log{
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Address: common.HexToAddress("0x0"),
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Topics: topics,
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Data: hexutil.MustDecode(hexData),
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BlockNumber: uint64(26),
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TxHash: txHash,
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TxIndex: 111,
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BlockHash: common.BytesToHash([]byte{1, 2, 3, 4, 5}),
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Index: 7,
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Removed: false,
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}
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}
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func TestCall(t *testing.T) {
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var method, methodWithArg = "something", "somethingArrrrg"
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tests := []struct {
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name, method string
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opts *bind.CallOpts
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mc bind.ContractCaller
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results *[]interface{}
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wantErr bool
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wantErrExact error
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}{{
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name: "ok not pending",
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mc: &mockCaller{
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codeAtBytes: []byte{0},
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},
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method: method,
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}, {
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name: "ok pending",
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mc: &mockPendingCaller{
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pendingCodeAtBytes: []byte{0},
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},
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opts: &bind.CallOpts{
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Pending: true,
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},
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method: method,
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}, {
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name: "ok hash",
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mc: &mockBlockHashCaller{
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codeAtHashBytes: []byte{0},
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},
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opts: &bind.CallOpts{
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BlockHash: common.Hash{0xaa},
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},
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method: method,
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}, {
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name: "pack error, no method",
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mc: new(mockCaller),
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method: "else",
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wantErr: true,
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}, {
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name: "interface error, pending but not a PendingContractCaller",
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mc: new(mockCaller),
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opts: &bind.CallOpts{
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Pending: true,
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},
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method: method,
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wantErrExact: bind.ErrNoPendingState,
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|
}, {
|
|
name: "interface error, blockHash but not a BlockHashContractCaller",
|
|
mc: new(mockCaller),
|
|
opts: &bind.CallOpts{
|
|
BlockHash: common.Hash{0xaa},
|
|
},
|
|
method: method,
|
|
wantErrExact: bind.ErrNoBlockHashState,
|
|
}, {
|
|
name: "pending call canceled",
|
|
mc: &mockPendingCaller{
|
|
pendingCallContractErr: context.DeadlineExceeded,
|
|
},
|
|
opts: &bind.CallOpts{
|
|
Pending: true,
|
|
},
|
|
method: method,
|
|
wantErrExact: context.DeadlineExceeded,
|
|
}, {
|
|
name: "pending code at error",
|
|
mc: &mockPendingCaller{
|
|
pendingCodeAtErr: errors.New(""),
|
|
},
|
|
opts: &bind.CallOpts{
|
|
Pending: true,
|
|
},
|
|
method: method,
|
|
wantErr: true,
|
|
}, {
|
|
name: "no pending code at",
|
|
mc: new(mockPendingCaller),
|
|
opts: &bind.CallOpts{
|
|
Pending: true,
|
|
},
|
|
method: method,
|
|
wantErrExact: bind.ErrNoCode,
|
|
}, {
|
|
name: "call contract error",
|
|
mc: &mockCaller{
|
|
callContractErr: context.DeadlineExceeded,
|
|
},
|
|
method: method,
|
|
wantErrExact: context.DeadlineExceeded,
|
|
}, {
|
|
name: "code at error",
|
|
mc: &mockCaller{
|
|
codeAtErr: errors.New(""),
|
|
},
|
|
method: method,
|
|
wantErr: true,
|
|
}, {
|
|
name: "no code at",
|
|
mc: new(mockCaller),
|
|
method: method,
|
|
wantErrExact: bind.ErrNoCode,
|
|
}, {
|
|
name: "call contract at hash error",
|
|
mc: &mockBlockHashCaller{
|
|
callContractAtHashErr: context.DeadlineExceeded,
|
|
},
|
|
opts: &bind.CallOpts{
|
|
BlockHash: common.Hash{0xaa},
|
|
},
|
|
method: method,
|
|
wantErrExact: context.DeadlineExceeded,
|
|
}, {
|
|
name: "code at error",
|
|
mc: &mockBlockHashCaller{
|
|
codeAtHashErr: errors.New(""),
|
|
},
|
|
opts: &bind.CallOpts{
|
|
BlockHash: common.Hash{0xaa},
|
|
},
|
|
method: method,
|
|
wantErr: true,
|
|
}, {
|
|
name: "no code at hash",
|
|
mc: new(mockBlockHashCaller),
|
|
opts: &bind.CallOpts{
|
|
BlockHash: common.Hash{0xaa},
|
|
},
|
|
method: method,
|
|
wantErrExact: bind.ErrNoCode,
|
|
}, {
|
|
name: "unpack error missing arg",
|
|
mc: &mockCaller{
|
|
codeAtBytes: []byte{0},
|
|
},
|
|
method: methodWithArg,
|
|
wantErr: true,
|
|
}, {
|
|
name: "interface unpack error",
|
|
mc: &mockCaller{
|
|
codeAtBytes: []byte{0},
|
|
},
|
|
method: method,
|
|
results: &[]interface{}{0},
|
|
wantErr: true,
|
|
}}
|
|
for _, test := range tests {
|
|
bc := bind.NewBoundContract(common.HexToAddress("0x0"), abi.ABI{
|
|
Methods: map[string]abi.Method{
|
|
method: {
|
|
Name: method,
|
|
Outputs: abi.Arguments{},
|
|
},
|
|
methodWithArg: {
|
|
Name: methodWithArg,
|
|
Outputs: abi.Arguments{abi.Argument{}},
|
|
},
|
|
},
|
|
}, test.mc, nil, nil)
|
|
err := bc.Call(test.opts, test.results, test.method)
|
|
if test.wantErr || test.wantErrExact != nil {
|
|
if err == nil {
|
|
t.Fatalf("%q expected error", test.name)
|
|
}
|
|
if test.wantErrExact != nil && !errors.Is(err, test.wantErrExact) {
|
|
t.Fatalf("%q expected error %q but got %q", test.name, test.wantErrExact, err)
|
|
}
|
|
continue
|
|
}
|
|
if err != nil {
|
|
t.Fatalf("%q unexpected error: %v", test.name, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestCrashers contains some strings which previously caused the abi codec to crash.
|
|
func TestCrashers(t *testing.T) {
|
|
abi.JSON(strings.NewReader(`[{"inputs":[{"type":"tuple[]","components":[{"type":"bool","name":"_1"}]}]}]`))
|
|
abi.JSON(strings.NewReader(`[{"inputs":[{"type":"tuple[]","components":[{"type":"bool","name":"&"}]}]}]`))
|
|
abi.JSON(strings.NewReader(`[{"inputs":[{"type":"tuple[]","components":[{"type":"bool","name":"----"}]}]}]`))
|
|
abi.JSON(strings.NewReader(`[{"inputs":[{"type":"tuple[]","components":[{"type":"bool","name":"foo.Bar"}]}]}]`))
|
|
}
|