public void T07_Integer_Stream_IO()
{
for (int i = 0; i < 256; i++)
{
var n = TT.PRNG.Next(Int32.MinValue, Int32.MaxValue);
using (var stream = new MemoryStream()) {
var x = new X690.Integer(n);
x.Write(stream);
TT.Peek(x, stream);
stream.Position = 0;
var y = (X690.Read(stream)) as X690.Integer;
Assert.Equal(n, x.Value);
Assert.Equal(x.ValueBits, y.ValueBits);
Assert.Equal(n, y.Value);
}
}
}
public void T08_Integer_Buffered_IO()
{
var buffer = new byte[10];
for (int i = 0; i < 256; i++)
{
var n = TT.PRNG.Next(Int32.MinValue, Int32.MaxValue);
var x = new X690.Integer(n);
var length = x.Write(buffer, 0);
TT.Peek(x, buffer, length);
var y = (X690.Read(buffer, 0, length)) as X690.Integer;
Assert.Equal(n, x.Value);
Assert.Equal(x.ValueBits, y.ValueBits);
Assert.Equal(n, y.Value);
Assert.Equal(x.Header.MessageLength, length);
}
}
protected virtual bool ValueOf(uint n)
{
int j = 0;
switch ((UniversalType)(type.ToByte()))
{
case UniversalType.Boolean: val = (b[0] > 0); break;
case UniversalType.Integer:
val = new Integer(b); break;
case UniversalType.BitString:
byte r = b[0];
BitSet bs = new BitSet(n * 8 - r); // 8.6.2
for (j = 0; j < bs.size; j++)
{
bs.bits[j] = (b[4 * j] << 24) | (b[4 * j + 1] << 16) | (b[4 * j + 2] << 8) | b[4 * j + 3];
}
val = bs; break;
case UniversalType.OctetString:
val = new OctetString(b, 0, n); break;
case UniversalType.Null:
val = null;
break;
case UniversalType.ObjectIdentifier:
ArrayList al = new ArrayList();
int p = 0;
while (p < n)
{
al.Add(GetOIDEl(ref p));
}
uint[] oid;
if (((uint)al[0]) == 43)
{
oid = new uint[al.Count + 1];
oid[0] = 1;
oid[1] = 3;
for (j = 1; j < al.Count; j++)
{
oid[j + 1] = (uint)al[j];
}
}
else // can happen that oid is .0??
{
// throw(new Exception("OID must begin with .1.3"));
oid = new uint[al.Count];
for (j = 0; j < al.Count; j++)
{
oid[j] = (uint)al[j];
}
}
val = oid; break;
case UniversalType.Real:
val = new Real(b); break;
case UniversalType.GeneralString:
val = ASCIIEncoding.ASCII.GetString(b); break;
case UniversalType.Enumerated:
val = new Integer(b); break;
default:
val = type.ToString() + " unimplemented"; break;
}
return(true);
}