public void Validate_ThrowsValidationException_WhenPhoneNumberIsInvalid(string phoneNumber)
{
var validator = new PhoneNumberValidator(phoneNumber);
Assert.Throws <ValidationException>(() => validator.Validate());
}
public void ShouldThrowExceptionForInvalidNumber(CallConnectModel model)
{
var phoneValidator = new PhoneNumberValidator();
Assert.Throws <InvalidPhoneNumberException>(() => phoneValidator.Validate(model));
}