/// <summary>
/// Generates a random IPv6 address.
/// </summary>
public string Ipv6()
{
var bytes = Random.Bytes(16);
return
($"{bytes[0]:x}{bytes[1]:x}:{bytes[2]:x}{bytes[3]:x}:{bytes[4]:x}{bytes[5]:x}:{bytes[6]:x}{bytes[7]:x}:{bytes[8]:x}{bytes[9]:x}:{bytes[10]:x}{bytes[11]:x}:{bytes[12]:x}{bytes[13]:x}:{bytes[14]:x}{bytes[15]:x}");
}
public Transaction(Output[] Outputs, string Id = null)
{
this.Id = Id ?? Hash.Sha1(Random.Bytes());
this.Outputs = Outputs;
Type = TransactionType.REWARD;
InputsConcatenated = Inputs.Stringified();
OutputsConcatenated = Outputs.Stringified();
}
public Transaction(Input[] Inputs, Output[] Outputs, string Id = null)
{
this.Id = Id ?? Hash.Sha1(Random.Bytes());
this.Inputs = Inputs;
this.Outputs = Outputs;
InputsConcatenated = Inputs.Stringified();
OutputsConcatenated = Outputs.Stringified();
}
/// <summary>
/// Thread-safe wrapper for Bytes().
/// </summary>
/// <param name="length">Number of random bytes to return.</param>
/// <returns>Array of random bytes.</returns>
public sealed override byte[] Bytes(int length)
{
byte[] arr;
lock (this)
{
arr = _rand.Bytes(length);
}
return(arr);
}
public void DeserializationFailsWithInvalidFrameTerminator()
{
var buffer = new ArrayBufferWriter <Byte>(8);
var value = new RawFrame(Random.Enum <FrameType>(), Random.UShort(), Random.Bytes(Random.UShort()));
value.Serialize(buffer);
var modifiedBuffer = buffer.WrittenMemory.ToArray();
modifiedBuffer[modifiedBuffer.Length - 1] = 0x00;
Assert.Throws <FramingErrorException>(() => RawFrame.Deserialize(modifiedBuffer.AsSpan(), out var _, out var _));
}
public void SerializationIsSymmetric()
{
var buffer = new ArrayBufferWriter <Byte>();
var value = new RawFrame(Random.Enum <FrameType>(), Random.UShort(), Random.Bytes(Random.UShort()));
value.Serialize(buffer);
RawFrame.Deserialize(buffer.WrittenMemory.Span, out var deserialized, out var _);
Assert.Equal(expected: value.Channel, actual: deserialized.Channel);
Assert.Equal(expected: value.Payload.ToArray(), actual: deserialized.Payload.ToArray());
Assert.Equal(expected: value.Size, actual: deserialized.Size);
Assert.Equal(expected: value.Type, actual: deserialized.Type);
}
public void DeserializationReturnsSurplusData()
{
var value = new RawFrame(Random.Enum <FrameType>(), Random.UShort(), Random.Bytes(Random.UShort()));
var extra = Random.UInt();
var buffer = new ArrayBufferWriter <Byte>(12);
buffer.WriteSerializable(value)
.WriteUInt32LE(extra);
RawFrame.Deserialize(buffer.WrittenMemory.Span, out var _, out var surplus);
Assert.Equal(expected: sizeof(UInt32), actual: surplus.Length);
Assert.Equal(expected: extra, actual: BitConverter.ToUInt32(surplus));
}
[Test] public void Robustness()
{
// Blast the buffer with noise to make sure it can handle any input
var settings = new VT100.Settings();
var buf = new VT100.Buffer(settings);
buf.ReportUnsupportedEscapeSequences = false;
var rnd = new Random(0);
for (int i = 0; i != 10000; ++i)
{
var noise = rnd.Bytes().Take(rnd.Next(1000)).Select(x => (char)x).ToArray();
buf.Output(new string(noise));
}
}
public void GetForwardedIpAddress_When_Headers_Contains_XForwardedFor_Key_With_Value_Returns_Value()
{
// Arrange
var mockIpAddress = new IPAddress(Random.Bytes(4));
var headerDictionary = new HeaderDictionary();
headerDictionary.Add(HttpRequestExtensions.X_FORWARDED_FOR, mockIpAddress.ToString());
var mockSut = new Mock <HttpRequest>();
mockSut.Setup((e) => e.Headers).Returns(value: headerDictionary);
var sut = mockSut.Object;
// Act
var result = sut.GetForwardedIpAddress();
// Assert
result.ShouldBe(mockIpAddress.ToString());
}
/// <summary>
/// Draw an array of random and uniform bytes.
/// </summary>
/// <param name="length">The array length requested.</param>
public sealed override byte[] Bytes(int length)
{
Switch();
return(Rand.Bytes(length));
}