Official Go implementation of the Ethereum protocol
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go-ethereum/ethclient/ethclient_test.go

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19 KiB

// Copyright 2016 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 ethclient
import (
"bytes"
"context"
"errors"
"fmt"
"math/big"
"reflect"
"testing"
"time"
"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/rawdb"
"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/node"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
// Verify that Client implements the ethereum interfaces.
var (
_ = ethereum.ChainReader(&Client{})
_ = ethereum.TransactionReader(&Client{})
_ = ethereum.ChainStateReader(&Client{})
_ = ethereum.ChainSyncReader(&Client{})
_ = ethereum.ContractCaller(&Client{})
_ = ethereum.GasEstimator(&Client{})
_ = ethereum.GasPricer(&Client{})
_ = ethereum.LogFilterer(&Client{})
_ = ethereum.PendingStateReader(&Client{})
// _ = ethereum.PendingStateEventer(&Client{})
_ = ethereum.PendingContractCaller(&Client{})
)
func TestToFilterArg(t *testing.T) {
blockHashErr := fmt.Errorf("cannot specify both BlockHash and FromBlock/ToBlock")
addresses := []common.Address{
common.HexToAddress("0xD36722ADeC3EdCB29c8e7b5a47f352D701393462"),
}
blockHash := common.HexToHash(
"0xeb94bb7d78b73657a9d7a99792413f50c0a45c51fc62bdcb08a53f18e9a2b4eb",
)
for _, testCase := range []struct {
name string
input ethereum.FilterQuery
output interface{}
err error
}{
{
"without BlockHash",
ethereum.FilterQuery{
Addresses: addresses,
FromBlock: big.NewInt(1),
ToBlock: big.NewInt(2),
Topics: [][]common.Hash{},
},
map[string]interface{}{
"address": addresses,
"fromBlock": "0x1",
"toBlock": "0x2",
"topics": [][]common.Hash{},
},
nil,
},
{
"with nil fromBlock and nil toBlock",
ethereum.FilterQuery{
Addresses: addresses,
Topics: [][]common.Hash{},
},
map[string]interface{}{
"address": addresses,
"fromBlock": "0x0",
"toBlock": "latest",
"topics": [][]common.Hash{},
},
nil,
},
{
"with negative fromBlock and negative toBlock",
ethereum.FilterQuery{
Addresses: addresses,
FromBlock: big.NewInt(-1),
ToBlock: big.NewInt(-1),
Topics: [][]common.Hash{},
},
map[string]interface{}{
"address": addresses,
"fromBlock": "pending",
"toBlock": "pending",
"topics": [][]common.Hash{},
},
nil,
},
{
"with blockhash",
ethereum.FilterQuery{
Addresses: addresses,
BlockHash: &blockHash,
Topics: [][]common.Hash{},
},
map[string]interface{}{
"address": addresses,
"blockHash": blockHash,
"topics": [][]common.Hash{},
},
nil,
},
{
"with blockhash and from block",
ethereum.FilterQuery{
Addresses: addresses,
BlockHash: &blockHash,
FromBlock: big.NewInt(1),
Topics: [][]common.Hash{},
},
nil,
blockHashErr,
},
{
"with blockhash and to block",
ethereum.FilterQuery{
Addresses: addresses,
BlockHash: &blockHash,
ToBlock: big.NewInt(1),
Topics: [][]common.Hash{},
},
nil,
blockHashErr,
},
{
"with blockhash and both from / to block",
ethereum.FilterQuery{
Addresses: addresses,
BlockHash: &blockHash,
FromBlock: big.NewInt(1),
ToBlock: big.NewInt(2),
Topics: [][]common.Hash{},
},
nil,
blockHashErr,
},
} {
t.Run(testCase.name, func(t *testing.T) {
output, err := toFilterArg(testCase.input)
if (testCase.err == nil) != (err == nil) {
t.Fatalf("expected error %v but got %v", testCase.err, err)
}
if testCase.err != nil {
if testCase.err.Error() != err.Error() {
t.Fatalf("expected error %v but got %v", testCase.err, err)
}
} else if !reflect.DeepEqual(testCase.output, output) {
t.Fatalf("expected filter arg %v but got %v", testCase.output, output)
}
})
}
}
var (
testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
testBalance = big.NewInt(2e15)
)
var genesis = &core.Genesis{
Config: params.AllEthashProtocolChanges,
Alloc: core.GenesisAlloc{testAddr: {Balance: testBalance}},
ExtraData: []byte("test genesis"),
Timestamp: 9000,
BaseFee: big.NewInt(params.InitialBaseFee),
}
var testTx1 = types.MustSignNewTx(testKey, types.LatestSigner(genesis.Config), &types.LegacyTx{
Nonce: 0,
Value: big.NewInt(12),
GasPrice: big.NewInt(params.InitialBaseFee),
Gas: params.TxGas,
To: &common.Address{2},
})
var testTx2 = types.MustSignNewTx(testKey, types.LatestSigner(genesis.Config), &types.LegacyTx{
Nonce: 1,
Value: big.NewInt(8),
GasPrice: big.NewInt(params.InitialBaseFee),
Gas: params.TxGas,
To: &common.Address{2},
})
func newTestBackend(t *testing.T) (*node.Node, []*types.Block) {
// Generate test chain.
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)
}
// 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() []*types.Block {
db := rawdb.NewMemoryDatabase()
generate := func(i int, g *core.BlockGen) {
g.OffsetTime(5)
g.SetExtra([]byte("test"))
if i == 1 {
// Test transactions are included in block #2.
g.AddTx(testTx1)
g.AddTx(testTx2)
}
}
gblock := genesis.MustCommit(db)
engine := ethash.NewFaker()
blocks, _ := core.GenerateChain(genesis.Config, gblock, engine, db, 2, generate)
blocks = append([]*types.Block{gblock}, blocks...)
return blocks
}
func TestEthClient(t *testing.T) {
backend, chain := newTestBackend(t)
client, _ := backend.Attach()
defer backend.Close()
defer client.Close()
tests := map[string]struct {
test func(t *testing.T)
}{
"Header": {
func(t *testing.T) { testHeader(t, chain, client) },
},
"BalanceAt": {
func(t *testing.T) { testBalanceAt(t, client) },
},
"TxInBlockInterrupted": {
func(t *testing.T) { testTransactionInBlockInterrupted(t, client) },
},
"ChainID": {
func(t *testing.T) { testChainID(t, client) },
},
"GetBlock": {
func(t *testing.T) { testGetBlock(t, client) },
},
"StatusFunctions": {
func(t *testing.T) { testStatusFunctions(t, client) },
},
"CallContract": {
func(t *testing.T) { testCallContract(t, client) },
},
"CallContractAtHash": {
func(t *testing.T) { testCallContractAtHash(t, client) },
},
"AtFunctions": {
func(t *testing.T) { testAtFunctions(t, client) },
},
"TransactionSender": {
func(t *testing.T) { testTransactionSender(t, client) },
},
}
t.Parallel()
for name, tt := range tests {
t.Run(name, tt.test)
}
}
func testHeader(t *testing.T, chain []*types.Block, client *rpc.Client) {
tests := map[string]struct {
block *big.Int
want *types.Header
wantErr error
}{
"genesis": {
block: big.NewInt(0),
want: chain[0].Header(),
},
"first_block": {
block: big.NewInt(1),
want: chain[1].Header(),
},
"future_block": {
block: big.NewInt(1000000000),
want: nil,
wantErr: ethereum.NotFound,
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
ec := NewClient(client)
ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
defer cancel()
got, err := ec.HeaderByNumber(ctx, tt.block)
if !errors.Is(err, tt.wantErr) {
t.Fatalf("HeaderByNumber(%v) error = %q, want %q", tt.block, err, tt.wantErr)
}
if got != nil && got.Number != nil && got.Number.Sign() == 0 {
got.Number = big.NewInt(0) // hack to make DeepEqual work
}
if !reflect.DeepEqual(got, tt.want) {
t.Fatalf("HeaderByNumber(%v)\n = %v\nwant %v", tt.block, got, tt.want)
}
})
}
}
func testBalanceAt(t *testing.T, client *rpc.Client) {
tests := map[string]struct {
account common.Address
block *big.Int
want *big.Int
wantErr error
}{
"valid_account_genesis": {
account: testAddr,
block: big.NewInt(0),
want: testBalance,
},
"valid_account": {
account: testAddr,
block: big.NewInt(1),
want: testBalance,
},
"non_existent_account": {
account: common.Address{1},
block: big.NewInt(1),
want: big.NewInt(0),
},
"future_block": {
account: testAddr,
block: big.NewInt(1000000000),
want: big.NewInt(0),
wantErr: errors.New("header not found"),
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
ec := NewClient(client)
ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
defer cancel()
got, err := ec.BalanceAt(ctx, tt.account, tt.block)
if tt.wantErr != nil && (err == nil || err.Error() != tt.wantErr.Error()) {
t.Fatalf("BalanceAt(%x, %v) error = %q, want %q", tt.account, tt.block, err, tt.wantErr)
}
if got.Cmp(tt.want) != 0 {
t.Fatalf("BalanceAt(%x, %v) = %v, want %v", tt.account, tt.block, got, tt.want)
}
})
}
}
func testTransactionInBlockInterrupted(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// Get current block by number.
block, err := ec.BlockByNumber(context.Background(), nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
// Test tx in block interupted.
ctx, cancel := context.WithCancel(context.Background())
cancel()
tx, err := ec.TransactionInBlock(ctx, block.Hash(), 0)
if tx != nil {
t.Fatal("transaction should be nil")
}
if err == nil || err == ethereum.NotFound {
t.Fatal("error should not be nil/notfound")
}
// Test tx in block not found.
if _, err := ec.TransactionInBlock(context.Background(), block.Hash(), 20); err != ethereum.NotFound {
t.Fatal("error should be ethereum.NotFound")
}
}
func testChainID(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
id, err := ec.ChainID(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if id == nil || id.Cmp(params.AllEthashProtocolChanges.ChainID) != 0 {
t.Fatalf("ChainID returned wrong number: %+v", id)
}
}
func testGetBlock(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// Get current block number
blockNumber, err := ec.BlockNumber(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if blockNumber != 2 {
t.Fatalf("BlockNumber returned wrong number: %d", blockNumber)
}
// Get current block by number
block, err := ec.BlockByNumber(context.Background(), new(big.Int).SetUint64(blockNumber))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if block.NumberU64() != blockNumber {
t.Fatalf("BlockByNumber returned wrong block: want %d got %d", blockNumber, block.NumberU64())
}
// Get current block by hash
blockH, err := ec.BlockByHash(context.Background(), block.Hash())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if block.Hash() != blockH.Hash() {
t.Fatalf("BlockByHash returned wrong block: want %v got %v", block.Hash().Hex(), blockH.Hash().Hex())
}
// Get header by number
header, err := ec.HeaderByNumber(context.Background(), new(big.Int).SetUint64(blockNumber))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if block.Header().Hash() != header.Hash() {
t.Fatalf("HeaderByNumber returned wrong header: want %v got %v", block.Header().Hash().Hex(), header.Hash().Hex())
}
// Get header by hash
headerH, err := ec.HeaderByHash(context.Background(), block.Hash())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if block.Header().Hash() != headerH.Hash() {
t.Fatalf("HeaderByHash returned wrong header: want %v got %v", block.Header().Hash().Hex(), headerH.Hash().Hex())
}
}
func testStatusFunctions(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// Sync progress
progress, err := ec.SyncProgress(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if progress != nil {
t.Fatalf("unexpected progress: %v", progress)
}
// NetworkID
networkID, err := ec.NetworkID(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if networkID.Cmp(big.NewInt(0)) != 0 {
t.Fatalf("unexpected networkID: %v", networkID)
}
// SuggestGasPrice
gasPrice, err := ec.SuggestGasPrice(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if gasPrice.Cmp(big.NewInt(1000000000)) != 0 {
t.Fatalf("unexpected gas price: %v", gasPrice)
}
// SuggestGasTipCap
gasTipCap, err := ec.SuggestGasTipCap(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if gasTipCap.Cmp(big.NewInt(234375000)) != 0 {
t.Fatalf("unexpected gas tip cap: %v", gasTipCap)
}
// FeeHistory
history, err := ec.FeeHistory(context.Background(), 1, big.NewInt(2), []float64{95, 99})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
want := &ethereum.FeeHistory{
OldestBlock: big.NewInt(2),
Reward: [][]*big.Int{
{
big.NewInt(234375000),
big.NewInt(234375000),
},
},
BaseFee: []*big.Int{
big.NewInt(765625000),
big.NewInt(671627818),
},
GasUsedRatio: []float64{0.008912678667376286},
}
if !reflect.DeepEqual(history, want) {
t.Fatalf("FeeHistory result doesn't match expected: (got: %v, want: %v)", history, want)
}
}
func testCallContractAtHash(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// EstimateGas
msg := ethereum.CallMsg{
From: testAddr,
To: &common.Address{},
Gas: 21000,
Value: big.NewInt(1),
}
gas, err := ec.EstimateGas(context.Background(), msg)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if gas != 21000 {
t.Fatalf("unexpected gas price: %v", gas)
}
block, err := ec.HeaderByNumber(context.Background(), big.NewInt(1))
if err != nil {
t.Fatalf("BlockByNumber error: %v", err)
}
// CallContract
if _, err := ec.CallContractAtHash(context.Background(), msg, block.Hash()); err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func testCallContract(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// EstimateGas
msg := ethereum.CallMsg{
From: testAddr,
To: &common.Address{},
Gas: 21000,
Value: big.NewInt(1),
}
gas, err := ec.EstimateGas(context.Background(), msg)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if gas != 21000 {
t.Fatalf("unexpected gas price: %v", gas)
}
// CallContract
if _, err := ec.CallContract(context.Background(), msg, big.NewInt(1)); err != nil {
t.Fatalf("unexpected error: %v", err)
}
// PendingCallContract
if _, err := ec.PendingCallContract(context.Background(), msg); err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func testAtFunctions(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
// send a transaction for some interesting pending status
sendTransaction(ec)
time.Sleep(100 * time.Millisecond)
// Check pending transaction count
pending, err := ec.PendingTransactionCount(context.Background())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if pending != 1 {
t.Fatalf("unexpected pending, wanted 1 got: %v", pending)
}
// Query balance
balance, err := ec.BalanceAt(context.Background(), testAddr, nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
penBalance, err := ec.PendingBalanceAt(context.Background(), testAddr)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if balance.Cmp(penBalance) == 0 {
t.Fatalf("unexpected balance: %v %v", balance, penBalance)
}
// NonceAt
nonce, err := ec.NonceAt(context.Background(), testAddr, nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
penNonce, err := ec.PendingNonceAt(context.Background(), testAddr)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if penNonce != nonce+1 {
t.Fatalf("unexpected nonce: %v %v", nonce, penNonce)
}
// StorageAt
storage, err := ec.StorageAt(context.Background(), testAddr, common.Hash{}, nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
penStorage, err := ec.PendingStorageAt(context.Background(), testAddr, common.Hash{})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !bytes.Equal(storage, penStorage) {
t.Fatalf("unexpected storage: %v %v", storage, penStorage)
}
// CodeAt
code, err := ec.CodeAt(context.Background(), testAddr, nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
penCode, err := ec.PendingCodeAt(context.Background(), testAddr)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !bytes.Equal(code, penCode) {
t.Fatalf("unexpected code: %v %v", code, penCode)
}
}
func testTransactionSender(t *testing.T, client *rpc.Client) {
ec := NewClient(client)
ctx := context.Background()
// Retrieve testTx1 via RPC.
block2, err := ec.HeaderByNumber(ctx, big.NewInt(2))
if err != nil {
t.Fatal("can't get block 1:", err)
}
tx1, err := ec.TransactionInBlock(ctx, block2.Hash(), 0)
if err != nil {
t.Fatal("can't get tx:", err)
}
if tx1.Hash() != testTx1.Hash() {
t.Fatalf("wrong tx hash %v, want %v", tx1.Hash(), testTx1.Hash())
}
// The sender address is cached in tx1, so no additional RPC should be required in
// TransactionSender. Ensure the server is not asked by canceling the context here.
canceledCtx, cancel := context.WithCancel(context.Background())
cancel()
sender1, err := ec.TransactionSender(canceledCtx, tx1, block2.Hash(), 0)
if err != nil {
t.Fatal(err)
}
if sender1 != testAddr {
t.Fatal("wrong sender:", sender1)
}
// Now try to get the sender of testTx2, which was not fetched through RPC.
// TransactionSender should query the server here.
sender2, err := ec.TransactionSender(ctx, testTx2, block2.Hash(), 1)
if err != nil {
t.Fatal(err)
}
if sender2 != testAddr {
t.Fatal("wrong sender:", sender2)
}
}
func sendTransaction(ec *Client) error {
chainID, err := ec.ChainID(context.Background())
if err != nil {
return err
}
nonce, err := ec.PendingNonceAt(context.Background(), testAddr)
if err != nil {
return err
}
signer := types.LatestSignerForChainID(chainID)
tx, err := types.SignNewTx(testKey, signer, &types.LegacyTx{
Nonce: nonce,
To: &common.Address{2},
Value: big.NewInt(1),
Gas: 22000,
GasPrice: big.NewInt(params.InitialBaseFee),
})
if err != nil {
return err
}
return ec.SendTransaction(context.Background(), tx)
}