github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/internal/guide/guide_test.go (about)

     1  // This file is part of the go-sberex library. The go-sberex library is 
     2  // free software: you can redistribute it and/or modify it under the terms 
     3  // of the GNU Lesser General Public License as published by the Free 
     4  // Software Foundation, either version 3 of the License, or (at your option)
     5  // any later version.
     6  //
     7  // The go-sberex library is distributed in the hope that it will be useful, 
     8  // but WITHOUT ANY WARRANTY; without even the implied warranty of
     9  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
    10  // General Public License <http://www.gnu.org/licenses/> for more details.
    11  
    12  // This file contains the code snippets from the developer's guide embedded into
    13  // Go tests. This ensures that any code published in out guides will not break
    14  // accidentally via some code update. If some API changes nonetheless that needs
    15  // modifying this file, please port any modification over into the developer's
    16  // guide wiki pages too!
    17  
    18  package guide
    19  
    20  import (
    21  	"io/ioutil"
    22  	"math/big"
    23  	"os"
    24  	"path/filepath"
    25  	"testing"
    26  	"time"
    27  
    28  	"github.com/Sberex/go-sberex/accounts/keystore"
    29  	"github.com/Sberex/go-sberex/core/types"
    30  )
    31  
    32  // Tests that the account management snippets work correctly.
    33  func TestAccountManagement(t *testing.T) {
    34  	// Create a temporary folder to work with
    35  	workdir, err := ioutil.TempDir("", "")
    36  	if err != nil {
    37  		t.Fatalf("Failed to create temporary work dir: %v", err)
    38  	}
    39  	defer os.RemoveAll(workdir)
    40  
    41  	// Create an encrypted keystore with standard crypto parameters
    42  	ks := keystore.NewKeyStore(filepath.Join(workdir, "keystore"), keystore.StandardScryptN, keystore.StandardScryptP)
    43  
    44  	// Create a new account with the specified encryption passphrase
    45  	newAcc, err := ks.NewAccount("Creation password")
    46  	if err != nil {
    47  		t.Fatalf("Failed to create new account: %v", err)
    48  	}
    49  	// Export the newly created account with a different passphrase. The returned
    50  	// data from this method invocation is a JSON encoded, encrypted key-file
    51  	jsonAcc, err := ks.Export(newAcc, "Creation password", "Export password")
    52  	if err != nil {
    53  		t.Fatalf("Failed to export account: %v", err)
    54  	}
    55  	// Update the passphrase on the account created above inside the local keystore
    56  	if err := ks.Update(newAcc, "Creation password", "Update password"); err != nil {
    57  		t.Fatalf("Failed to update account: %v", err)
    58  	}
    59  	// Delete the account updated above from the local keystore
    60  	if err := ks.Delete(newAcc, "Update password"); err != nil {
    61  		t.Fatalf("Failed to delete account: %v", err)
    62  	}
    63  	// Import back the account we've exported (and then deleted) above with yet
    64  	// again a fresh passphrase
    65  	if _, err := ks.Import(jsonAcc, "Export password", "Import password"); err != nil {
    66  		t.Fatalf("Failed to import account: %v", err)
    67  	}
    68  	// Create a new account to sign transactions with
    69  	signer, err := ks.NewAccount("Signer password")
    70  	if err != nil {
    71  		t.Fatalf("Failed to create signer account: %v", err)
    72  	}
    73  	tx, chain := new(types.Transaction), big.NewInt(1)
    74  
    75  	// Sign a transaction with a single authorization
    76  	if _, err := ks.SignTxWithPassphrase(signer, "Signer password", tx, chain); err != nil {
    77  		t.Fatalf("Failed to sign with passphrase: %v", err)
    78  	}
    79  	// Sign a transaction with multiple manually cancelled authorizations
    80  	if err := ks.Unlock(signer, "Signer password"); err != nil {
    81  		t.Fatalf("Failed to unlock account: %v", err)
    82  	}
    83  	if _, err := ks.SignTx(signer, tx, chain); err != nil {
    84  		t.Fatalf("Failed to sign with unlocked account: %v", err)
    85  	}
    86  	if err := ks.Lock(signer.Address); err != nil {
    87  		t.Fatalf("Failed to lock account: %v", err)
    88  	}
    89  	// Sign a transaction with multiple automatically cancelled authorizations
    90  	if err := ks.TimedUnlock(signer, "Signer password", time.Second); err != nil {
    91  		t.Fatalf("Failed to time unlock account: %v", err)
    92  	}
    93  	if _, err := ks.SignTx(signer, tx, chain); err != nil {
    94  		t.Fatalf("Failed to sign with time unlocked account: %v", err)
    95  	}
    96  }