// simple static rule
public static void Valid(Address address, IScope scope)
{
scope.Validate(() => address.Street1, StringIs.Limited(10, 256));
scope.Validate(() => address.Street2, StringIs.Limited(256));
scope.Validate(() => address.Country, Is.NotDefault);
scope.Validate(() => address.Zip, StringIs.Limited(10));
switch (address.Country)
{
case Country.USA:
scope.Validate(() => address.Zip, StringIs.Limited(5, 10));
break;
case Country.France:
break;
case Country.Russia:
scope.Validate(() => address.Zip, StringIs.Limited(6, 6));
break;
default:
scope.Validate(() => address.Zip, StringIs.Limited(1, 64));
break;
}
}
public static void Valid(Customer customer, IScope scope)
{
scope.Validate(() => customer.Name, StringIs.Limited(3, 64));
if (customer.Address.Country == Country.Russia)
{
scope.Validate(() => customer.Email, (s, scope1) =>
{
if (!string.IsNullOrEmpty(s))
{
scope1.Error(
@"Russian customers do not have emails.
Use pigeons instead.");
}
});
}
else
{
scope.Validate(() => customer.Email, StringIs.ValidEmail);
}
}
public static void Validate([AssertionCondition(AssertionConditionType.IS_NOT_NULL)][CanBeNull][ValidatedNotNull]
this string value, [InvokerParameterName][NotNull] string argumentName, StringIs validationType)
{
if (ReferenceEquals(value, null))
{
if (validationType.HasFlag(StringIs.NotNull))
{
throw new ArgumentNullException(argumentName, ErrorMessages.ArgumentNull(argumentName));
}
// It's null, so we can't validate the other conditions.
return;
}
if (string.IsNullOrWhiteSpace(value))
{
if (value.Length <= 0)
{
if (validationType.HasFlag(StringIs.NotEmpty))
{
throw new ArgumentException(ErrorMessages.ArgumentZeroLengthString(argumentName), argumentName);
}
}
else
{
if (validationType.HasFlag(StringIs.NotWhiteSpace))
{
throw new ArgumentException(ErrorMessages.ArgumentWhiteSpaceString(argumentName), argumentName);
}
}
}
}
public static void Validate([AssertionCondition(AssertionConditionType.IS_NOT_NULL)][ValidatedNotNull]
this string argumentValue, [NotNull][InvokerParameterName] string argumentName, StringIs validation)
{
/*
* We should test "validation", but that would be an expensive thing to do for something that could be
* called very frequently.
*/
var isNull = ReferenceEquals(argumentValue, null);
if (validation.HasFlag(StringIs.NotNull) && isNull)
{
var normalizedArgumentName = string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName;
throw new ArgumentNullException(normalizedArgumentName,
string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsNull, normalizedArgumentName));
}
if (validation.HasFlag(StringIs.NotEmpty) && !isNull && argumentValue.Length <= 0)
{
var normalizedArgumentName = string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName;
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsZeroLength, normalizedArgumentName),
normalizedArgumentName);
}
#pragma warning disable S2583 // Conditionally executed blocks should be reachable
if (validation.HasFlag(StringIs.NotWhiteSpace) && !isNull && argumentValue.Length > 0 && string.IsNullOrWhiteSpace(argumentValue))
#pragma warning restore S2583 // Conditionally executed blocks should be reachable
{
var normalizedArgumentName = string.IsNullOrWhiteSpace(argumentName) ? Exceptions.Fragment_UnknownArgument : argumentName;
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Exceptions.Validate_ArgumentIsWhiteSpaceOnly, normalizedArgumentName),
normalizedArgumentName);
}
Contract.EndContractBlock();
}