public void ValidCpfShouldSplitTest(string value)
{
string number = CPF.GetNumberFrom(value);
string digit = CPF.GetCheckNumberFrom(value);
var cpf = new CPF(number + digit);
Assert.That(cpf == value);
Assert.That(cpf.Number, Is.EqualTo(number));
Assert.That(cpf.CheckNumber, Is.EqualTo(digit));
}