/// <summary>
/// Returns true if ISBN is valid.
/// </summary>
/// <param name="value">The value of the object to validate.</param>
/// <returns>
/// true if the specified value is valid; otherwise, false.
/// </returns>
public override bool IsValid(object value)
{
return(IsbnHelper.IsValidIsbn(value?.ToString()));
}
public void Right10DigitalIsbn_Valid()
{
Assert.IsTrue(IsbnHelper.IsValidIsbn("0-684-84328-5"));
Assert.IsTrue(IsbnHelper.IsValidIsbn("0-9752298-0-X"));
}
public void WrongIsbn_Invalid()
{
Assert.IsFalse(IsbnHelper.IsValidIsbn("978 - 1"));
Assert.IsFalse(IsbnHelper.IsValidIsbn("0-684-8432-5"));
Assert.IsFalse(IsbnHelper.IsValidIsbn("0-9752298-G-X"));
}
public void Right13DigitalIsbn_Valid()
{
Assert.IsTrue(IsbnHelper.IsValidIsbn("978 - 1420955095"));
Assert.IsTrue(IsbnHelper.IsValidIsbn("978-3-16-148410-0"));
}