public void Mine2ndBlock()
{
BlockRepository blockRepo = new BlockRepository();
Block genesis = blockRepo.CreateGenesisBlock();
byte[] data = Encoding.UTF8.GetBytes("fakedata");
Block newBlock = blockRepo.MineBlock(genesis, data);
Assert.NotNull(newBlock);
Assert.Equal(genesis.Hash, newBlock.PreviousHash);
Assert.Contains(Convert.ToBase64String(data), newBlock.ToString());
Assert.Equal(1, newBlock.Difficulty);
Assert.Equal(0, newBlock.Hash[0]);
}
public void ReduceDifficulty()
{
BlockRepository blockRepo = new BlockRepository();
Block genesis = blockRepo.CreateGenesisBlock(); // using genesis as template
genesis.Difficulty = 3;
genesis.Timestamp = DateTime.UtcNow.AddSeconds(-100);
byte[] data = Encoding.UTF8.GetBytes("fakedata");
Block newBlock = blockRepo.MineBlock(genesis, data);
Assert.NotNull(newBlock);
Assert.Equal(genesis.Hash, newBlock.PreviousHash);
Assert.Contains(Convert.ToBase64String(data), newBlock.ToString());
Assert.Equal(2, newBlock.Difficulty);
Assert.Equal(0, newBlock.Hash[0]);
Assert.Equal(0, newBlock.Hash[1]);
}
public void GetGenesisBlock()
{
DateTime timestamp = new DateTime(1998, 6, 7);
string prevHash = "916ea4dc3717b0c46156ed9382e9dac329212d3d1bdd30516bdabef670798feb";
byte[] prevHashBytes = Transformations.StringToByteArray(prevHash);
string thisHash = "18f34ff0ff9b8a8ba44d2f73c26e3ba179acf62225ab87cf3afb86dcb95b34d4";
byte[] thisHashBytes = Transformations.StringToByteArray(thisHash);
BlockRepository systemUnderTest = new BlockRepository();
Block genesis = systemUnderTest.CreateGenesisBlock();
string representation = genesis.ToString();
Assert.Contains(timestamp.Ticks.ToString(), representation);
Assert.Equal(prevHashBytes, genesis.PreviousHash);
Assert.Contains(prevHash, representation);
Assert.Equal(thisHashBytes, genesis.Hash);
Assert.Contains(thisHash, representation);
}