/// <summary>
/// Generates a single branch of X.690 node tree.
/// </summary>
/// <param name="lengthEncoding">Definite, indefinite or random.</param>
/// <returns>A tree branch.</returns>
static X690.Node RandomBranch(LengthEncoding lengthEncoding = LengthEncoding.Definite) => PRNG.NextBool()
? new X690.Sequence()
{
IsDefiniteLength = lengthEncoding.IsDefiniteLength()
} as X690.Node
: new X690.Set()
{
IsDefiniteLength = lengthEncoding.IsDefiniteLength()
} as X690.Node;
/// <summary>
/// Generates a single random leaf of X.690 node tree.
/// </summary>
/// <param name="lengthEncoding">Definite, indefinite or random.</param>
/// <returns>A tree leaf.</returns>
static X690.Node RandomLeaf(LengthEncoding lengthEncoding = LengthEncoding.Definite)
{
switch (PRNG.Next(0, 4))
{
case 0: return(new X690.Null());
case 1: return(new X690.Boolean(PRNG.NextBool()));
case 2: return(new X690.Integer(PRNG.Next(int.MinValue, int.MaxValue)));
case 3: return(new X690.Text(RandomString())
{
IsDefiniteLength = lengthEncoding.IsDefiniteLength()
});
}
throw new InvalidOperationException();
}