public async Task Can_cancel()
{
ulong badNonce = 971086423715459953; // change if valid
BlockHeader header = new BlockHeader(Keccak.Zero, Keccak.OfAnEmptySequenceRlp, Address.Zero, (UInt256)BigInteger.Pow(2, 32), 1, 21000, 1, new byte[] { 1, 2, 3 });
header.TransactionsRoot = Keccak.Zero;
header.ReceiptsRoot = Keccak.Zero;
header.OmmersHash = Keccak.Zero;
header.StateRoot = Keccak.Zero;
header.Bloom = Bloom.Empty;
Block block = new Block(header);
EthashSealEngine ethashSealEngine = new EthashSealEngine(new Ethash(LimboLogs.Instance), Substitute.For <IDifficultyCalculator>(), LimboLogs.Instance);
await ethashSealEngine.MineAsync(new CancellationTokenSource(TimeSpan.FromMilliseconds(2000)).Token, block, badNonce).ContinueWith(t =>
{
Assert.True(t.IsCanceled);
});
}
public async Task Can_mine()
{
ulong validNonce = 971086423715459953;
BlockHeader header = new BlockHeader(Keccak.Zero, Keccak.OfAnEmptySequenceRlp, Address.Zero, 1000, 1, 21000, 1, new byte[] { 1, 2, 3 });
header.TransactionsRoot = Keccak.Zero;
header.ReceiptsRoot = Keccak.Zero;
header.OmmersHash = Keccak.Zero;
header.StateRoot = Keccak.Zero;
header.Bloom = Bloom.Empty;
Block block = new Block(header);
EthashSealEngine ethashSealEngine = new EthashSealEngine(new Ethash(LimboLogs.Instance), Substitute.For <IDifficultyCalculator>(), LimboLogs.Instance);
await ethashSealEngine.MineAsync(new CancellationTokenSource(TimeSpan.FromSeconds(20)).Token, block, validNonce - 10);
Assert.AreEqual(validNonce, block.Header.Nonce);
Assert.AreEqual(new Keccak("0xff2c80283f139148a9b3f2a9dd19d698475937a85296225a96857599cce6d1e2"), block.Header.MixHash);
Console.WriteLine(block.Header.Nonce);
}
public async Task Find_nonce()
{
BlockHeader parentHeader = new BlockHeader(Keccak.Zero, Keccak.OfAnEmptySequenceRlp, Address.Zero, 131072, 0, 21000, 0, new byte[] { });
parentHeader.Hash = BlockHeader.CalculateHash(parentHeader);
BlockHeader blockHeader = new BlockHeader(parentHeader.Hash, Keccak.OfAnEmptySequenceRlp, Address.Zero, 131136, 1, 21000, 1, new byte[] { });
blockHeader.Nonce = 7217048144105167954;
blockHeader.MixHash = new Keccak("0x37d9fb46a55e9dbbffc428f3a1be6f191b3f8eaf52f2b6f53c4b9bae62937105");
blockHeader.Hash = BlockHeader.CalculateHash(blockHeader);
Block block = new Block(blockHeader);
IEthash ethash = new Ethash(LimboLogs.Instance);
EthashSealEngine ethashSealEngine = new EthashSealEngine(ethash, Substitute.For <IDifficultyCalculator>(), LimboLogs.Instance);
await ethashSealEngine.MineAsync(CancellationToken.None, block, 7217048144105167954);
Assert.True(ethash.Validate(block.Header));
Console.WriteLine(block.Header.Nonce);
Console.WriteLine(block.Header.MixHash);
}