github.com/SmartMeshFoundation/Spectrum@v0.0.0-20220621030607-452a266fee1e/consensus/ethash/ethash_test.go (about)

     1  // Copyright 2017 The Spectrum Authors
     2  // This file is part of the Spectrum library.
     3  //
     4  // The Spectrum 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 Spectrum 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 Spectrum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package ethash
    18  
    19  import (
    20  	"math/big"
    21  	"testing"
    22  
    23  	"github.com/SmartMeshFoundation/Spectrum/core/types"
    24  )
    25  
    26  // Tests that ethash works correctly in test mode.
    27  func TestTestMode(t *testing.T) {
    28  	head := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)}
    29  
    30  	ethash := NewTester()
    31  	block, err := ethash.Seal(nil, types.NewBlockWithHeader(head), nil)
    32  	if err != nil {
    33  		t.Fatalf("failed to seal block: %v", err)
    34  	}
    35  	head.Nonce = types.EncodeNonce(block.Nonce())
    36  	head.MixDigest = block.MixDigest()
    37  	if err := ethash.VerifySeal(nil, head); err != nil {
    38  		t.Fatalf("unexpected verification error: %v", err)
    39  	}
    40  }