public static GuardThis <int> AgainstNegative(this GuardThis <int> guard)
{
if (guard.Obj < 0)
{
throw new ArgumentException(guard.CustomErrorMessage != null? guard.CustomErrorMessage: "Value should not be less than zero");
}
return(guard);
}
public static GuardThis <int> AgainstNotBeingExactly(this GuardThis <int> guard, int value)
{
if (guard.Obj != value)
{
throw new ArgumentException(guard.CustomErrorMessage != null ? guard.CustomErrorMessage : string.Format("Value should be exactly {0}", value));
}
return(guard);
}
public static GuardThis <string> AgainstNullOrEmpty(this GuardThis <string> guard)
{
if (string.IsNullOrEmpty(guard.Obj))
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: "String was found to be either empty or null when it should have a value");
}
return(guard);
}
public static GuardThis <string> AgainstSpaces(this GuardThis <string> guard)
{
if (guard.Obj.Trim().Contains(" "))
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: "String was found to be contain white space, but white space is not allowed");
}
return(guard);
}
public static GuardThis <DateTime> AgainstCrmMinimum(this GuardThis <DateTime> guard)
{
if (guard.Obj.CompareTo(CrmConstants.CrmMinimum) < 0)
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: "DateTime was expected to be on or after 01/01/1970");
}
return(guard);
}
public static GuardThis <Guid> AgainstNotEqual(this GuardThis <Guid> guard, Guid otherGuid)
{
if (guard.Obj.CompareTo(otherGuid) != 0)
{
throw new ArgumentException(
guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: "Guids were expected to match, but do not");
}
return(guard);
}
public static GuardThis <string> AgainstNonGuidFormat(this GuardThis <string> guard)
{
Guid guid = Guid.Empty;
if (!Guid.TryParse(guard.Obj, out guid))
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: "String was expected to be in GUID format (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)");
}
return(guard);
}
public static GuardThis <string> AgainstInvalidLength(this GuardThis <string> guard, int minLength, int maxLength)
{
if (guard.Obj.Length > maxLength)
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: string.Format("String was expected to be shorter than {0} characters", maxLength));
}
else if (guard.Obj.Length < minLength)
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: string.Format("String was expected to be longer than {0} characters", minLength));
}
return(guard);
}
public static GuardThis <int> AgainstInvalidRange(this GuardThis <int> guard, int minValue, int maxValue)
{
if (guard.Obj > maxValue)
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: string.Format("Integer value was expected to be smaller than {0}", maxValue));
}
else if (guard.Obj < minValue)
{
throw new ArgumentException(guard.CustomErrorMessage != null
? guard.CustomErrorMessage
: string.Format("Integer value was expected to be larger than {0}", minValue));
}
return(guard);
}
