static void Main(string[] args)
{
string isbn = String.Empty;
while (true)
{
Console.Write("Enter an ISBN number (including dashes): ");
isbn = Console.ReadLine();
if (isbn == "")
{
break;
}
Console.WriteLine("That ISBN number is " + (ISBN.IsValid(isbn.Trim()) ? "VALID" : "INVALID"));
}
while (true)
{
Console.Write("Press any key to generate valid ISBNs: ");
Console.ReadLine();
int maxLoops = 0;
for (int i = 0; i < 10000; i++)
{
int loops = 0;
isbn = ISBN.New(out loops);
if (loops > maxLoops)
{
maxLoops = loops;
}
}
Console.WriteLine("Max loops was: " + maxLoops.ToString());
}
}
public void GeneratedISBNIsValid()
{
int loops = 0;
string isbn = ISBN.New(out loops);
Assert.That(ISBN.IsValid(isbn));
}
public void FiveHundredGeneratedISBNsAreValid()
{
int loops = 0;
for (int i = 0; i < 500; i++)
{
string isbn = ISBN.New(out loops);
Assert.That(ISBN.IsValid(isbn));
}
}
public void InvalidISBNIsInvalid()
{
Assert.That(!ISBN.IsValid("0-7405-3269-9"));
}
public void ValidISBNIsValid()
{
Assert.That(ISBN.IsValid("0-7475-3269-9"));
}
