plugeth/ethclient/gethclient/gethclient_test.go
lmittmann 5b1a04b9c7
eth/filters, ethclient/gethclient: add fullTx option to pending tx filter (#25186)
This PR adds a way to subscribe to the _full_ pending transactions, as opposed to just being notified about hashes. 

In use cases where client subscribes to newPendingTransactions and gets txhashes only to then request the actual transaction, the caller can now shortcut that flow and obtain the transactions directly. 


Co-authored-by: Felix Lange <fjl@twurst.com>
2022-10-12 11:54:52 +02:00

416 lines
12 KiB
Go

// Copyright 2021 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package gethclient
import (
"bytes"
"context"
"encoding/json"
"math/big"
"testing"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
var (
testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
testSlot = common.HexToHash("0xdeadbeef")
testValue = crypto.Keccak256Hash(testSlot[:])
testBalance = big.NewInt(2e15)
)
func newTestBackend(t *testing.T) (*node.Node, []*types.Block) {
// Generate test chain.
genesis, blocks := generateTestChain()
// Create node
n, err := node.New(&node.Config{})
if err != nil {
t.Fatalf("can't create new node: %v", err)
}
// Create Ethereum Service
config := &ethconfig.Config{Genesis: genesis}
config.Ethash.PowMode = ethash.ModeFake
ethservice, err := eth.New(n, config)
if err != nil {
t.Fatalf("can't create new ethereum service: %v", err)
}
filterSystem := filters.NewFilterSystem(ethservice.APIBackend, filters.Config{})
n.RegisterAPIs([]rpc.API{{
Namespace: "eth",
Service: filters.NewFilterAPI(filterSystem, false),
}})
// Import the test chain.
if err := n.Start(); err != nil {
t.Fatalf("can't start test node: %v", err)
}
if _, err := ethservice.BlockChain().InsertChain(blocks[1:]); err != nil {
t.Fatalf("can't import test blocks: %v", err)
}
return n, blocks
}
func generateTestChain() (*core.Genesis, []*types.Block) {
genesis := &core.Genesis{
Config: params.AllEthashProtocolChanges,
Alloc: core.GenesisAlloc{testAddr: {Balance: testBalance, Storage: map[common.Hash]common.Hash{testSlot: testValue}}},
ExtraData: []byte("test genesis"),
Timestamp: 9000,
}
generate := func(i int, g *core.BlockGen) {
g.OffsetTime(5)
g.SetExtra([]byte("test"))
}
_, blocks, _ := core.GenerateChainWithGenesis(genesis, ethash.NewFaker(), 1, generate)
blocks = append([]*types.Block{genesis.ToBlock()}, blocks...)
return genesis, blocks
}
func TestGethClient(t *testing.T) {
backend, _ := newTestBackend(t)
client, err := backend.Attach()
if err != nil {
t.Fatal(err)
}
defer backend.Close()
defer client.Close()
tests := []struct {
name string
test func(t *testing.T)
}{
{
"TestGetProof",
func(t *testing.T) { testGetProof(t, client) },
}, {
"TestGCStats",
func(t *testing.T) { testGCStats(t, client) },
}, {
"TestMemStats",
func(t *testing.T) { testMemStats(t, client) },
}, {
"TestGetNodeInfo",
func(t *testing.T) { testGetNodeInfo(t, client) },
}, {
"TestSetHead",
func(t *testing.T) { testSetHead(t, client) },
}, {
"TestSubscribePendingTxHashes",
func(t *testing.T) { testSubscribePendingTransactions(t, client) },
}, {
"TestSubscribePendingTxs",
func(t *testing.T) { testSubscribeFullPendingTransactions(t, client) },
}, {
"TestCallContract",
func(t *testing.T) { testCallContract(t, client) },
},
// The testaccesslist is a bit time-sensitive: the newTestBackend imports
// one block. The `testAcessList` fails if the miner has not yet created a
// new pending-block after the import event.
// Hence: this test should be last, execute the tests serially.
{
"TestAccessList",
func(t *testing.T) { testAccessList(t, client) },
},
}
for _, tt := range tests {
t.Run(tt.name, tt.test)
}
}
func testAccessList(t *testing.T, client *rpc.Client) {
ec := New(client)
// Test transfer
msg := ethereum.CallMsg{
From: testAddr,
To: &common.Address{},
Gas: 21000,
GasPrice: big.NewInt(765625000),
Value: big.NewInt(1),
}
al, gas, vmErr, err := ec.CreateAccessList(context.Background(), msg)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if vmErr != "" {
t.Fatalf("unexpected vm error: %v", vmErr)
}
if gas != 21000 {
t.Fatalf("unexpected gas used: %v", gas)
}
if len(*al) != 0 {
t.Fatalf("unexpected length of accesslist: %v", len(*al))
}
// Test reverting transaction
msg = ethereum.CallMsg{
From: testAddr,
To: nil,
Gas: 100000,
GasPrice: big.NewInt(1000000000),
Value: big.NewInt(1),
Data: common.FromHex("0x608060806080608155fd"),
}
al, gas, vmErr, err = ec.CreateAccessList(context.Background(), msg)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if vmErr == "" {
t.Fatalf("wanted vmErr, got none")
}
if gas == 21000 {
t.Fatalf("unexpected gas used: %v", gas)
}
if len(*al) != 1 || al.StorageKeys() != 1 {
t.Fatalf("unexpected length of accesslist: %v", len(*al))
}
// address changes between calls, so we can't test for it.
if (*al)[0].Address == common.HexToAddress("0x0") {
t.Fatalf("unexpected address: %v", (*al)[0].Address)
}
if (*al)[0].StorageKeys[0] != common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000081") {
t.Fatalf("unexpected storage key: %v", (*al)[0].StorageKeys[0])
}
}
func testGetProof(t *testing.T, client *rpc.Client) {
ec := New(client)
ethcl := ethclient.NewClient(client)
result, err := ec.GetProof(context.Background(), testAddr, []string{testSlot.String()}, nil)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(result.Address[:], testAddr[:]) {
t.Fatalf("unexpected address, want: %v got: %v", testAddr, result.Address)
}
// test nonce
nonce, _ := ethcl.NonceAt(context.Background(), result.Address, nil)
if result.Nonce != nonce {
t.Fatalf("invalid nonce, want: %v got: %v", nonce, result.Nonce)
}
// test balance
balance, _ := ethcl.BalanceAt(context.Background(), result.Address, nil)
if result.Balance.Cmp(balance) != 0 {
t.Fatalf("invalid balance, want: %v got: %v", balance, result.Balance)
}
// test storage
if len(result.StorageProof) != 1 {
t.Fatalf("invalid storage proof, want 1 proof, got %v proof(s)", len(result.StorageProof))
}
proof := result.StorageProof[0]
slotValue, _ := ethcl.StorageAt(context.Background(), testAddr, testSlot, nil)
if !bytes.Equal(slotValue, proof.Value.Bytes()) {
t.Fatalf("invalid storage proof value, want: %v, got: %v", slotValue, proof.Value.Bytes())
}
if proof.Key != testSlot.String() {
t.Fatalf("invalid storage proof key, want: %v, got: %v", testSlot.String(), proof.Key)
}
}
func testGCStats(t *testing.T, client *rpc.Client) {
ec := New(client)
_, err := ec.GCStats(context.Background())
if err != nil {
t.Fatal(err)
}
}
func testMemStats(t *testing.T, client *rpc.Client) {
ec := New(client)
stats, err := ec.MemStats(context.Background())
if err != nil {
t.Fatal(err)
}
if stats.Alloc == 0 {
t.Fatal("Invalid mem stats retrieved")
}
}
func testGetNodeInfo(t *testing.T, client *rpc.Client) {
ec := New(client)
info, err := ec.GetNodeInfo(context.Background())
if err != nil {
t.Fatal(err)
}
if info.Name == "" {
t.Fatal("Invalid node info retrieved")
}
}
func testSetHead(t *testing.T, client *rpc.Client) {
ec := New(client)
err := ec.SetHead(context.Background(), big.NewInt(0))
if err != nil {
t.Fatal(err)
}
}
func testSubscribePendingTransactions(t *testing.T, client *rpc.Client) {
ec := New(client)
ethcl := ethclient.NewClient(client)
// Subscribe to Transactions
ch := make(chan common.Hash)
ec.SubscribePendingTransactions(context.Background(), ch)
// Send a transaction
chainID, err := ethcl.ChainID(context.Background())
if err != nil {
t.Fatal(err)
}
// Create transaction
tx := types.NewTransaction(0, common.Address{1}, big.NewInt(1), 22000, big.NewInt(1), nil)
signer := types.LatestSignerForChainID(chainID)
signature, err := crypto.Sign(signer.Hash(tx).Bytes(), testKey)
if err != nil {
t.Fatal(err)
}
signedTx, err := tx.WithSignature(signer, signature)
if err != nil {
t.Fatal(err)
}
// Send transaction
err = ethcl.SendTransaction(context.Background(), signedTx)
if err != nil {
t.Fatal(err)
}
// Check that the transaction was send over the channel
hash := <-ch
if hash != signedTx.Hash() {
t.Fatalf("Invalid tx hash received, got %v, want %v", hash, signedTx.Hash())
}
}
func testSubscribeFullPendingTransactions(t *testing.T, client *rpc.Client) {
ec := New(client)
ethcl := ethclient.NewClient(client)
// Subscribe to Transactions
ch := make(chan *types.Transaction)
ec.SubscribeFullPendingTransactions(context.Background(), ch)
// Send a transaction
chainID, err := ethcl.ChainID(context.Background())
if err != nil {
t.Fatal(err)
}
// Create transaction
tx := types.NewTransaction(1, common.Address{1}, big.NewInt(1), 22000, big.NewInt(1), nil)
signer := types.LatestSignerForChainID(chainID)
signature, err := crypto.Sign(signer.Hash(tx).Bytes(), testKey)
if err != nil {
t.Fatal(err)
}
signedTx, err := tx.WithSignature(signer, signature)
if err != nil {
t.Fatal(err)
}
// Send transaction
err = ethcl.SendTransaction(context.Background(), signedTx)
if err != nil {
t.Fatal(err)
}
// Check that the transaction was send over the channel
tx = <-ch
if tx.Hash() != signedTx.Hash() {
t.Fatalf("Invalid tx hash received, got %v, want %v", tx.Hash(), signedTx.Hash())
}
}
func testCallContract(t *testing.T, client *rpc.Client) {
ec := New(client)
msg := ethereum.CallMsg{
From: testAddr,
To: &common.Address{},
Gas: 21000,
GasPrice: big.NewInt(1000000000),
Value: big.NewInt(1),
}
// CallContract without override
if _, err := ec.CallContract(context.Background(), msg, big.NewInt(0), nil); err != nil {
t.Fatalf("unexpected error: %v", err)
}
// CallContract with override
override := OverrideAccount{
Nonce: 1,
}
mapAcc := make(map[common.Address]OverrideAccount)
mapAcc[testAddr] = override
if _, err := ec.CallContract(context.Background(), msg, big.NewInt(0), &mapAcc); err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func TestOverrideAccountMarshal(t *testing.T) {
om := map[common.Address]OverrideAccount{
common.Address{0x11}: OverrideAccount{
// Zero-valued nonce is not overriddden, but simply dropped by the encoder.
Nonce: 0,
},
common.Address{0xaa}: OverrideAccount{
Nonce: 5,
},
common.Address{0xbb}: OverrideAccount{
Code: []byte{1},
},
common.Address{0xcc}: OverrideAccount{
// 'code', 'balance', 'state' should be set when input is
// a non-nil but empty value.
Code: []byte{},
Balance: big.NewInt(0),
State: map[common.Hash]common.Hash{},
// For 'stateDiff' the behavior is different, empty map
// is ignored because it makes no difference.
StateDiff: map[common.Hash]common.Hash{},
},
}
marshalled, err := json.MarshalIndent(&om, "", " ")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
expected := `{
"0x1100000000000000000000000000000000000000": {},
"0xaa00000000000000000000000000000000000000": {
"nonce": "0x5"
},
"0xbb00000000000000000000000000000000000000": {
"code": "0x01"
},
"0xcc00000000000000000000000000000000000000": {
"code": "0x",
"balance": "0x0",
"state": {}
}
}`
if string(marshalled) != expected {
t.Error("wrong output:", string(marshalled))
t.Error("want:", expected)
}
}