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258 lines
9.7 KiB
258 lines
9.7 KiB
// 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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"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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)
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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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pendingCodeAtCalled bool
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pendingCallContractCalled bool
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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 []byte{1, 2, 3}, nil
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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 nil, nil
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}
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func (mc *mockCaller) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error) {
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mc.pendingCodeAtCalled = true
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return nil, nil
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}
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func (mc *mockCaller) PendingCallContract(ctx context.Context, call ethereum.CallMsg) ([]byte, error) {
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mc.pendingCallContractCalled = true
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return nil, nil
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}
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func TestPassingBlockNumber(t *testing.T) {
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mc := &mockCaller{}
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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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var ret string
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blockNumber := big.NewInt(42)
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bc.Call(&bind.CallOpts{BlockNumber: blockNumber}, &ret, "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{}, &ret, "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}, &ret, "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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common.HexToHash("0x0"),
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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 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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common.HexToHash("0x0"),
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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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common.HexToHash("0x0"),
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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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common.HexToHash("0x99b5620489b6ef926d4518936cfec15d305452712b88bd59da2d9c10fb0953e8"),
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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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common.HexToHash("0x99b5620489b6ef926d4518936cfec15d305452712b88bd59da2d9c10fb0953e8"),
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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 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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