public static string GenerateDomainName(int numberOfLabels)
{
if (numberOfLabels < 1)
{
throw new ArgumentException();
}
var minLength = numberOfLabels * 3;
var wordLength = random.Next(minLength, RandomDomainNameGenerator.MaxDomainNameLength + 1);
string randomWord = RandomWordGenerator.GenerateWord(wordLength);
IList <int> dotPositions = RandomDomainNameGenerator.GenerateDotPositions(wordLength, numberOfLabels);
return(RandomDomainNameGenerator.ReplaceStringPositionsByDots(randomWord, dotPositions));
}
static void Main(string[] args)
{
Regex regex = new Regex(@"^[a-zA-Z0-9]+(-[a-zA-Z0-9]+)*(\.[a-zA-Z0-9]+(-[a-zA-Z0-9]+)*)+$");
for (int tries = 0; tries < 100; ++tries)
{
int labels = random.Next(1, 40);
Console.WriteLine("Labels: {0}", labels);
string domainName = RandomDomainNameGenerator.GenerateDomainName(labels);
Console.WriteLine("Domain: {0}", domainName);
Debug.Assert(regex.IsMatch(domainName), string.Format("The domain name '{0}' is not valid", domainName));
}
Console.ReadLine();
}
