github.com/phillinzzz/newBsc@v1.1.6/internal/guide/guide_test.go (about)

     1  // Copyright 2017 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  // This file contains the code snippets from the developer's guide embedded into
    18  // Go tests. This ensures that any code published in out guides will not break
    19  // accidentally via some code update. If some API changes nonetheless that needs
    20  // modifying this file, please port any modification over into the developer's
    21  // guide wiki pages too!
    22  
    23  package guide
    24  
    25  import (
    26  	"io/ioutil"
    27  	"math/big"
    28  	"os"
    29  	"path/filepath"
    30  	"testing"
    31  	"time"
    32  
    33  	"github.com/phillinzzz/newBsc/accounts/keystore"
    34  	"github.com/phillinzzz/newBsc/common"
    35  	"github.com/phillinzzz/newBsc/core/types"
    36  )
    37  
    38  // Tests that the account management snippets work correctly.
    39  func TestAccountManagement(t *testing.T) {
    40  	// Create a temporary folder to work with
    41  	workdir, err := ioutil.TempDir("", "")
    42  	if err != nil {
    43  		t.Fatalf("Failed to create temporary work dir: %v", err)
    44  	}
    45  	defer os.RemoveAll(workdir)
    46  
    47  	// Create an encrypted keystore with standard crypto parameters
    48  	ks := keystore.NewKeyStore(filepath.Join(workdir, "keystore"), keystore.StandardScryptN, keystore.StandardScryptP)
    49  
    50  	// Create a new account with the specified encryption passphrase
    51  	newAcc, err := ks.NewAccount("Creation password")
    52  	if err != nil {
    53  		t.Fatalf("Failed to create new account: %v", err)
    54  	}
    55  	// Export the newly created account with a different passphrase. The returned
    56  	// data from this method invocation is a JSON encoded, encrypted key-file
    57  	jsonAcc, err := ks.Export(newAcc, "Creation password", "Export password")
    58  	if err != nil {
    59  		t.Fatalf("Failed to export account: %v", err)
    60  	}
    61  	// Update the passphrase on the account created above inside the local keystore
    62  	if err := ks.Update(newAcc, "Creation password", "Update password"); err != nil {
    63  		t.Fatalf("Failed to update account: %v", err)
    64  	}
    65  	// Delete the account updated above from the local keystore
    66  	if err := ks.Delete(newAcc, "Update password"); err != nil {
    67  		t.Fatalf("Failed to delete account: %v", err)
    68  	}
    69  	// Import back the account we've exported (and then deleted) above with yet
    70  	// again a fresh passphrase
    71  	if _, err := ks.Import(jsonAcc, "Export password", "Import password"); err != nil {
    72  		t.Fatalf("Failed to import account: %v", err)
    73  	}
    74  	// Create a new account to sign transactions with
    75  	signer, err := ks.NewAccount("Signer password")
    76  	if err != nil {
    77  		t.Fatalf("Failed to create signer account: %v", err)
    78  	}
    79  	tx := types.NewTransaction(0, common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
    80  	chain := big.NewInt(1)
    81  
    82  	// Sign a transaction with a single authorization
    83  	if _, err := ks.SignTxWithPassphrase(signer, "Signer password", tx, chain); err != nil {
    84  		t.Fatalf("Failed to sign with passphrase: %v", err)
    85  	}
    86  	// Sign a transaction with multiple manually cancelled authorizations
    87  	if err := ks.Unlock(signer, "Signer password"); err != nil {
    88  		t.Fatalf("Failed to unlock account: %v", err)
    89  	}
    90  	if _, err := ks.SignTx(signer, tx, chain); err != nil {
    91  		t.Fatalf("Failed to sign with unlocked account: %v", err)
    92  	}
    93  	if err := ks.Lock(signer.Address); err != nil {
    94  		t.Fatalf("Failed to lock account: %v", err)
    95  	}
    96  	// Sign a transaction with multiple automatically cancelled authorizations
    97  	if err := ks.TimedUnlock(signer, "Signer password", time.Second); err != nil {
    98  		t.Fatalf("Failed to time unlock account: %v", err)
    99  	}
   100  	if _, err := ks.SignTx(signer, tx, chain); err != nil {
   101  		t.Fatalf("Failed to sign with time unlocked account: %v", err)
   102  	}
   103  }