static void Main(string[] args)
{
int difficulty = 3;
BloqChain <string> chain = new BloqChain <string>(difficulty);
chain.AddBloq("Hello");
chain.AddBloq("Hello everyone!");
foreach (var bloq in chain)
{
Console.WriteLine($"# Bloq {bloq.Index}");
Console.WriteLine($"Data: {bloq.Data}");
Console.WriteLine($"Previous Hash: {bloq.PreviousHash}");
Console.WriteLine($"Hash: {bloq.Hash}");
Console.WriteLine();
}
Console.WriteLine($"Is valid: {chain.IsValid}");
Console.WriteLine();
Console.WriteLine("Changing value in Bloq 1");
chain[1].Data = "Bye";
Console.WriteLine($"Is valid: {chain.IsValid}");
Console.WriteLine();
Console.WriteLine("Recalculating Hash of Bloq 1");
chain[1].Mine(difficulty);
Console.WriteLine($"Is valid: {chain.IsValid}");
Console.WriteLine();
Console.WriteLine("Changing PreviousHash of Bloq 2");
chain[2].PreviousHash = chain[1].Hash;
Console.WriteLine($"Is valid: {chain.IsValid}");
Console.WriteLine();
Console.WriteLine("Recalculating Hash of Bloq 2");
chain[2].Mine(difficulty);
Console.WriteLine($"Is valid: {chain.IsValid}");
Console.WriteLine();
foreach (var bloq in chain)
{
Console.WriteLine($"# Bloq {bloq.Index}");
Console.WriteLine($"Data: {bloq.Data}");
Console.WriteLine($"Previous Hash: {bloq.PreviousHash}");
Console.WriteLine($"Hash: {bloq.Hash}");
Console.WriteLine();
}
Console.ReadKey();
}
public void AddBloq_DefaultData_Throws()
{
// Act And Assert
var chain = new BloqChain <bool>(difficulty: 0);
Assert.Throws <ArgumentException>(() => chain.AddBloq(default(bool)));
}
public void AddBloq_NullBloq_Throws()
{
// Act and Assert
var chain = new BloqChain <string>(difficulty: 0);
Assert.Throws <ArgumentException>(() => chain.AddBloq(null));
}
public void Indexer_IndexOutOfRange_Throws()
{
// Arrange
var chain = new BloqChain <string>(difficulty: 0);
chain.AddBloq("Some data");
// Act and Assert
Assert.Throws <ArgumentOutOfRangeException>(() => chain[5]);
}
public void AddBloq_ValidBloq_AddsToChain()
{
// Arrange
string data = "Some data";
// Act
var chain = new BloqChain <string>(difficulty: 0);
chain.AddBloq(data);
// Assert
Assert.Equal(2, chain.Length);
}
public void IsValid_UntamperedChainWithBLoqAdded_ReturnsTrue()
{
// Arrange
string data = "Some data";
var chain = new BloqChain <string>(difficulty: 0);
chain.AddBloq(data);
// Act
bool result = chain.IsValid;
// Assert
Assert.True(result);
}
public void IsValid_TamperedHashWithoutRemine_ReturnsFalse()
{
// Arrange
string data = "Some data";
var chain = new BloqChain <string>(difficulty: 0);
chain.AddBloq(data);
// Act
chain[1].PreviousHash = "I'm changed";
bool result = chain.IsValid;
// Assert
Assert.False(result);
}
public void IsValid_TamperedBloqAddedWithRemineWithDifferentDifficulty_ReturnsFalse()
{
// Arrange
string data = "Some data";
var chain = new BloqChain <string>(difficulty: 1);
chain.AddBloq(data);
// Act
chain[1].Data = "I'm changed";
chain[1].Mine(difficulty: 0);
bool result = chain.IsValid;
// Assert
Assert.False(result);
}
public void Indexer_ValidIndex_GetsBloq()
{
// Arrange
string data = "Some data";
var chain = new BloqChain <string>(difficulty: 0);
chain.AddBloq(data);
// Act
var bloq0 = chain[0];
var bloq1 = chain[1];
// Assert
Assert.NotNull(bloq0);
Assert.Equal(BloqHashing.GetGenesisHash(), bloq0.PreviousHash);
Assert.NotNull(bloq1);
Assert.Equal(data, bloq1.Data);
}