public void CheckBlockChainTest()
{
DataHelper helper = new DataHelper();
Example.Blockchain blockchain = helper.GetSampleChain();
Miner miner = new Miner();
Dictionary <string, decimal> result = miner.CheckBlockchain(blockchain);
Assert.AreEqual(result.Values.Sum(), 200);
}
public void ChainHashTest()
{
DataHelper helper = new DataHelper();
Example.Blockchain blockchain = helper.GetSampleChain();
string currentHash = String.Empty;
foreach (Block chain in blockchain.Chain)
{
Assert.AreEqual(chain.Content.ParentHash, currentHash);
currentHash = Hash.CreateHash(chain.Content.ToString());
}
}
public void ChainUniqueNumberTest()
{
DataHelper helper = new DataHelper();
Example.Blockchain blockchain = helper.GetSampleChain();
int lastnumber = 0;
foreach (Block chain in blockchain.Chain)
{
Assert.AreEqual(chain.Content.BlockNumber, lastnumber);
lastnumber++;
}
}
public void CreateFirstBlockTest()
{
Example.Blockchain chain = new Example.Blockchain();
BlockchainHelper helper = new BlockchainHelper();
TransactionPart alice = new TransactionPart("Alice", -3);
TransactionPart bob = new TransactionPart("Bob", 3);
Transaction transaction = new Transaction(alice, bob);
Block newBlock = helper.CreateBlock(transaction, chain);
Assert.AreEqual(newBlock.Content.BlockNumber, 1);
Assert.AreEqual(newBlock.Content.NumberOfTransactions, 2);
Assert.AreNotEqual(newBlock.Content.ParentHash, String.Empty);
}
public void CheckBlockHashTest()
{
Example.Blockchain chain = new Example.Blockchain();
BlockchainHelper helper = new BlockchainHelper();
TransactionPart alice = new TransactionPart("Alice", -3);
TransactionPart bob = new TransactionPart("Bob", 3);
Transaction transaction = new Transaction(alice, bob);
Block newBlock = helper.CreateBlock(transaction, chain);
Miner miner = new Miner();
bool result = miner.CheckBlockHash(newBlock);
Assert.IsTrue(result);
}
private static void PlayBlockchain(Random rand)
{
Console.WriteLine(String.Format("{0}: Start", DateTime.Now));
Console.WriteLine(String.Format("{0}: Creating Blockchain", DateTime.Now));
Example.Blockchain chain = new Example.Blockchain();
BlockchainHelper helper = new BlockchainHelper();
for (int i = 1; i <= 1000; i++)
{
int sign = 1;
if (rand.Next(0, 2) == 0)
{
sign = -1;
}
byte[] buff = new byte[2];
rand.NextBytes(buff);
// ToDo: Find a better way for random number
string number = "0" + Convert.ToChar(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator) + buff[0] + buff[1];
double amount = Convert.ToDouble(number);
double personA = sign * amount;
double personB = personA * -1;
TransactionPart alice = new TransactionPart(ALICE, (decimal)personA);
TransactionPart bob = new TransactionPart(BOB, (decimal)personB);
Transaction transaction = new Transaction(alice, bob);
Console.WriteLine(String.Format("{0}: Creating transaction {1} - {2}", DateTime.Now, i,
transaction.ToString()));
Block innerBlock = helper.CreateBlock(transaction, chain);
chain.Chain.Add(innerBlock);
}
Console.WriteLine(String.Format("{0}: Start mining", DateTime.Now));
Miner miner = new Miner();
Dictionary <string, decimal> result = miner.CheckBlockchain(chain);
Console.WriteLine(String.Format("{0}: Final result is {1}:{2} and {3}:{4}", DateTime.Now, ALICE, result[ALICE], BOB,
result[BOB]));
Console.WriteLine("Press any key to start over");
Console.ReadKey();
}
public Example.Blockchain GetSampleChain()
{
const int howMany = 25;
string parentHash = "";
Example.Blockchain chain = new Example.Blockchain();
BlockchainHelper helper = new BlockchainHelper();
for (int i = 1; i <= howMany; i++)
{
Transaction tx = CreateSampleTransaction();
Block innerBlock = helper.CreateBlock(tx, chain);
chain.Chain.Add(innerBlock);
}
return(chain);
}
public void CheckBlockTest()
{
Example.Blockchain chain = new Example.Blockchain();
BlockchainHelper helper = new BlockchainHelper();
Dictionary <string, decimal> states = new Dictionary <string, decimal>();
states.Add("Alice", 5);
states.Add("Bob", 5);
TransactionPart alice = new TransactionPart("Alice", -3);
TransactionPart bob = new TransactionPart("Bob", 3);
Transaction transaction = new Transaction(alice, bob);
Block newBlock = helper.CreateBlock(transaction, chain);
Block parentBlock = chain.Chain[0];
Miner miner = new Miner();
List <string> errors;
miner.CheckBlock(newBlock, parentBlock, states, out errors);
Assert.AreEqual(0, errors.Count);
}