github.com/benorgera/go-ethereum@v1.10.18-0.20220401011646-b3f57b1a73ba/accounts/abi/bind/util_test.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package bind_test
    18  
    19  import (
    20  	"context"
    21  	"errors"
    22  	"math/big"
    23  	"testing"
    24  	"time"
    25  
    26  	"github.com/ethereum/go-ethereum/accounts/abi/bind"
    27  	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
    28  	"github.com/ethereum/go-ethereum/common"
    29  	"github.com/ethereum/go-ethereum/core"
    30  	"github.com/ethereum/go-ethereum/core/types"
    31  	"github.com/ethereum/go-ethereum/crypto"
    32  )
    33  
    34  var testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    35  
    36  var waitDeployedTests = map[string]struct {
    37  	code        string
    38  	gas         uint64
    39  	wantAddress common.Address
    40  	wantErr     error
    41  }{
    42  	"successful deploy": {
    43  		code:        `6060604052600a8060106000396000f360606040526008565b00`,
    44  		gas:         3000000,
    45  		wantAddress: common.HexToAddress("0x3a220f351252089d385b29beca14e27f204c296a"),
    46  	},
    47  	"empty code": {
    48  		code:        ``,
    49  		gas:         300000,
    50  		wantErr:     bind.ErrNoCodeAfterDeploy,
    51  		wantAddress: common.HexToAddress("0x3a220f351252089d385b29beca14e27f204c296a"),
    52  	},
    53  }
    54  
    55  func TestWaitDeployed(t *testing.T) {
    56  	for name, test := range waitDeployedTests {
    57  		backend := backends.NewSimulatedBackend(
    58  			core.GenesisAlloc{
    59  				crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(10000000000000000)},
    60  			},
    61  			10000000,
    62  		)
    63  		defer backend.Close()
    64  
    65  		// Create the transaction
    66  		head, _ := backend.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
    67  		gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
    68  
    69  		tx := types.NewContractCreation(0, big.NewInt(0), test.gas, gasPrice, common.FromHex(test.code))
    70  		tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
    71  
    72  		// Wait for it to get mined in the background.
    73  		var (
    74  			err     error
    75  			address common.Address
    76  			mined   = make(chan struct{})
    77  			ctx     = context.Background()
    78  		)
    79  		go func() {
    80  			address, err = bind.WaitDeployed(ctx, backend, tx)
    81  			close(mined)
    82  		}()
    83  
    84  		// Send and mine the transaction.
    85  		backend.SendTransaction(ctx, tx)
    86  		backend.Commit()
    87  
    88  		select {
    89  		case <-mined:
    90  			if err != test.wantErr {
    91  				t.Errorf("test %q: error mismatch: want %q, got %q", name, test.wantErr, err)
    92  			}
    93  			if address != test.wantAddress {
    94  				t.Errorf("test %q: unexpected contract address %s", name, address.Hex())
    95  			}
    96  		case <-time.After(2 * time.Second):
    97  			t.Errorf("test %q: timeout", name)
    98  		}
    99  	}
   100  }
   101  
   102  func TestWaitDeployedCornerCases(t *testing.T) {
   103  	backend := backends.NewSimulatedBackend(
   104  		core.GenesisAlloc{
   105  			crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(10000000000000000)},
   106  		},
   107  		10000000,
   108  	)
   109  	defer backend.Close()
   110  
   111  	head, _ := backend.HeaderByNumber(context.Background(), nil) // Should be child's, good enough
   112  	gasPrice := new(big.Int).Add(head.BaseFee, big.NewInt(1))
   113  
   114  	// Create a transaction to an account.
   115  	code := "6060604052600a8060106000396000f360606040526008565b00"
   116  	tx := types.NewTransaction(0, common.HexToAddress("0x01"), big.NewInt(0), 3000000, gasPrice, common.FromHex(code))
   117  	tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
   118  	ctx, cancel := context.WithCancel(context.Background())
   119  	defer cancel()
   120  	backend.SendTransaction(ctx, tx)
   121  	backend.Commit()
   122  	notContentCreation := errors.New("tx is not contract creation")
   123  	if _, err := bind.WaitDeployed(ctx, backend, tx); err.Error() != notContentCreation.Error() {
   124  		t.Errorf("error missmatch: want %q, got %q, ", notContentCreation, err)
   125  	}
   126  
   127  	// Create a transaction that is not mined.
   128  	tx = types.NewContractCreation(1, big.NewInt(0), 3000000, gasPrice, common.FromHex(code))
   129  	tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
   130  
   131  	go func() {
   132  		contextCanceled := errors.New("context canceled")
   133  		if _, err := bind.WaitDeployed(ctx, backend, tx); err.Error() != contextCanceled.Error() {
   134  			t.Errorf("error missmatch: want %q, got %q, ", contextCanceled, err)
   135  		}
   136  	}()
   137  
   138  	backend.SendTransaction(ctx, tx)
   139  	cancel()
   140  }