public void TestEncode()
{
VariableLengthInteger n = new VariableLengthInteger((UInt64)61);
Assert.AreEqual((UInt64)61, n.Value);
Assert.AreEqual(8, n.Size);
byte[] b = n.Encode();
Assert.AreEqual(1, b.Length);
Assert.AreEqual(61, b[0]);
n.Value = 1414;
Assert.AreEqual((UInt64)1414, n.Value);
Assert.AreEqual(16, n.Size);
b = n.Encode();
Assert.AreEqual(2, b.Length);
Assert.AreEqual(0x40, b[0] & 0xc0);
Assert.AreEqual(0x05, b[0] % 0x40); // 1024 + 256
Assert.AreEqual(134, b[1]);
n.Value = 65536;
Assert.AreEqual((UInt64)65536, n.Value);
Assert.AreEqual(32, n.Size);
b = n.Encode();
Assert.AreEqual(4, b.Length);
Assert.AreEqual(0x80, b[0] & 0xc0);
Assert.AreEqual(0, b[0] % 0x40);
Assert.AreEqual(1, b[1]);
Assert.AreEqual(0, b[2]);
Assert.AreEqual(0, b[3]);
n.Value = (1UL << 32);
Assert.AreEqual(1UL << 32, n.Value);
Assert.AreEqual(64, n.Size);
b = n.Encode();
Assert.AreEqual(8, b.Length);
Assert.AreEqual(0xc0, b[0] & 0xc0);
Assert.AreEqual(0, b[0] % 0x40);
Assert.AreEqual(0, b[1]);
Assert.AreEqual(0, b[2]);
Assert.AreEqual(1, b[3]);
Assert.AreEqual(0, b[4]);
Assert.AreEqual(0, b[5]);
Assert.AreEqual(0, b[6]);
Assert.AreEqual(0, b[7]);
n.Value = (UInt64)151288809941952652;
Assert.AreEqual(64, n.Size);
b = n.Encode();
Assert.AreEqual(8, b.Length);
Assert.AreEqual(0xc2, b[0]);
Assert.AreEqual(0x19, b[1]);
Assert.AreEqual(0x7c, b[2]);
Assert.AreEqual(0x5e, b[3]);
Assert.AreEqual(0xff, b[4]);
Assert.AreEqual(0x14, b[5]);
Assert.AreEqual(0xe8, b[6]);
Assert.AreEqual(0x8c, b[7]);
}
/// <summary>
/// Encode a StreamFrame to a raw byte array
/// </summary>
/// <returns>The encoded frame</returns>
public override byte[] Encode()
{
List <byte> content = new List <byte>();
content.Add(Type);
content.AddRange(StreamID.Encode());
if (OFF)
{
content.AddRange(Offset.Encode());
}
if (LEN)
{
content.AddRange(_length.Encode());
}
content.AddRange(Data);
return(content.ToArray());
}