//test validity
private static void TestValidity(string number)
{
Console.WriteLine("Testing {0} for validity", number);
bool result = phoneNumberFormatter.IsValid(number);
Console.WriteLine("IsValid: {0}", result);
}
public void CheckNumberValidity(string saf, string airtel, string telkom, string equitel)
{
bool saf_result = _phoneNumberFormatter.IsValid(saf);
bool airtel_result = _phoneNumberFormatter.IsValid(airtel);
bool telkom_result = _phoneNumberFormatter.IsValid(telkom);
bool equitel_result = _phoneNumberFormatter.IsValid(equitel);
Assert.IsTrue(saf_result);
Assert.IsTrue(airtel_result);
Assert.IsTrue(telkom_result);
Assert.IsTrue(equitel_result);
}