plugeth/consensus/ethash/ethash_test.go

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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package ethash
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/core/types"
)
// Tests that ethash works correctly in test mode.
func TestTestMode(t *testing.T) {
head := &types.Header{Number: big.NewInt(1), Difficulty: big.NewInt(100)}
ethash := NewTester()
block, err := ethash.Seal(nil, types.NewBlockWithHeader(head), nil)
if err != nil {
t.Fatalf("failed to seal block: %v", err)
}
head.Nonce = types.EncodeNonce(block.Nonce())
head.MixDigest = block.MixDigest()
if err := ethash.VerifySeal(nil, head); err != nil {
t.Fatalf("unexpected verification error: %v", err)
}
}