public static PhysicalBlock FromString(string data)
{
string[] elements = data.Split(":");
DateTime timeStamp;
if (false == DateTime.TryParseExact(elements[5], Constants.DateTimeFormat, System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out timeStamp))
{
throw new LedgerNotValidException($"{elements[5]}");
}
PhysicalBlock block = new PhysicalBlock()
{
ParentId = Convert.ToInt32(elements[0]),
Id = Convert.ToInt32(elements[1]),
ParentHash = elements[2],
ReferenceId = Convert.ToInt32(elements[3]),
LedgerId = Convert.ToInt32(elements[4]),
TimeStamp = timeStamp,
Nonce = Nonce.FromString(elements[6]),
TransactionData = Encoding.UTF8.GetBytes(elements[7])
};
// compare hash from string with computedHash. they should match
if (elements[8] != block.ComputeHash())
{
throw new LedgerNotValidException($"block {block.Id}");
}
return(block);
}
public void TestToString()
{
// Arrange
var expected = "123:text";
// Act
var actual = Nonce.FromString(expected).ToString();
// Assert
Assert.AreEqual(expected, actual);
}
public void EqualsCreateFromStringAndDate()
{
// Arrange
var expected = Nonce.FromDate(DateTime.Now);
var actual = Nonce.FromString(expected.ToString());
// Act
var result = actual.Equals(expected);
// Assert
Assert.IsTrue(result);
}
public void Parse()
{
// Arrange
var date = DateTimeOffset.Now.ToUnixTimeMilliseconds();
var expected = $"{date}:text";
// Act
var actual = Nonce.FromString(expected);
// Assert
Assert.AreEqual(expected, actual.ToString());
}
public void ParseInvalidStringThrows()
{
// Arrange
var noDelimiter = "1234";
var noAppender = "1234:";
var noDate = ":1234";
var delimiterOnly = ":";
var empty = string.Empty;
string nullString = null;
// Act && Assert
Assert.Throws <AuthException>(() => { Nonce.FromString(noDelimiter); });
Assert.Throws <AuthException>(() => { Nonce.FromString(noAppender); });
Assert.Throws <AuthException>(() => { Nonce.FromString(noDate); });
Assert.Throws <AuthException>(() => { Nonce.FromString(delimiterOnly); });
Assert.Throws <AuthException>(() => { Nonce.FromString(empty); });
Assert.Throws <AuthException>(() => { Nonce.FromString(nullString); });
}