github.com/simpleusd/go-ethereum@v1.9.7/whisper/whisperv6/envelope_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  // Contains the tests associated with the Whisper protocol Envelope object.
    18  
    19  package whisperv6
    20  
    21  import (
    22  	mrand "math/rand"
    23  	"testing"
    24  
    25  	"github.com/ethereum/go-ethereum/crypto"
    26  )
    27  
    28  func TestPoWCalculationsWithNoLeadingZeros(t *testing.T) {
    29  	e := Envelope{
    30  		TTL:   1,
    31  		Data:  []byte{0xde, 0xad, 0xbe, 0xef},
    32  		Nonce: 100000,
    33  	}
    34  
    35  	e.calculatePoW(0)
    36  
    37  	if e.pow != 0.07692307692307693 {
    38  		t.Fatalf("invalid PoW calculation. Expected 0.07692307692307693, got %v", e.pow)
    39  	}
    40  }
    41  
    42  func TestPoWCalculationsWith8LeadingZeros(t *testing.T) {
    43  	e := Envelope{
    44  		TTL:   1,
    45  		Data:  []byte{0xde, 0xad, 0xbe, 0xef},
    46  		Nonce: 276,
    47  	}
    48  	e.calculatePoW(0)
    49  
    50  	if e.pow != 19.692307692307693 {
    51  		t.Fatalf("invalid PoW calculation. Expected 19.692307692307693, got %v", e.pow)
    52  	}
    53  }
    54  
    55  func TestEnvelopeOpenAcceptsOnlyOneKeyTypeInFilter(t *testing.T) {
    56  	symKey := make([]byte, aesKeyLength)
    57  	mrand.Read(symKey)
    58  
    59  	asymKey, err := crypto.GenerateKey()
    60  	if err != nil {
    61  		t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err)
    62  	}
    63  
    64  	params := MessageParams{
    65  		PoW:      0.01,
    66  		WorkTime: 1,
    67  		TTL:      uint32(mrand.Intn(1024)),
    68  		Payload:  make([]byte, 50),
    69  		KeySym:   symKey,
    70  		Dst:      nil,
    71  	}
    72  
    73  	mrand.Read(params.Payload)
    74  
    75  	msg, err := NewSentMessage(&params)
    76  	if err != nil {
    77  		t.Fatalf("failed to create new message with seed %d: %s.", seed, err)
    78  	}
    79  
    80  	e, err := msg.Wrap(&params)
    81  	if err != nil {
    82  		t.Fatalf("Failed to Wrap the message in an envelope with seed %d: %s", seed, err)
    83  	}
    84  
    85  	f := Filter{KeySym: symKey, KeyAsym: asymKey}
    86  
    87  	decrypted := e.Open(&f)
    88  	if decrypted != nil {
    89  		t.Fatalf("Managed to decrypt a message with an invalid filter, seed %d", seed)
    90  	}
    91  }