Context MaxAttributeContext(bool isDefined, int length = 0)
{
return
(c => c.Given(string.Format("max attribute isDefined:{0} of length: {1}", isDefined, length), x =>
{
A.CallTo(() => Member.IsDefined(typeof(MaxLengthAttribute))).Returns(isDefined);
var maxLengthAttribute = isDefined ? new MaxLengthAttribute(length) : null;
A.CallTo(() => Member.GetCustomAttribute <MaxLengthAttribute> ()).Returns(maxLengthAttribute);
}));
}
public static RangeContstraints <T> FromMember([CanBeNull] IFastMemberWithValues member)
{
if (member == null)
{
return(null);
}
if (!member.IsDefined(typeof(RangeAttribute)))
{
return(null);
}
var rangeAttribute = member.GetCustomAttribute <RangeAttribute>();
if (rangeAttribute == null)
{
return(null);
}
if (rangeAttribute.OperandType != typeof(T))
{
return(null);
}
var minValue = (T)Convert.ChangeType(rangeAttribute.Minimum, typeof(T));
var maxValue = (T)Convert.ChangeType(rangeAttribute.Maximum, typeof(T));
if ((minValue).CompareTo(maxValue) > 0)
{
throw new ArgumentOutOfRangeException(
string.Format("On the member {0} {1} the Range attribute has an invalid range", member.Type, member.Name));
}
return(new RangeContstraints <T> (minValue, maxValue));
}
Context PropertyInfoContext(bool isDefined, Type rangeType = null, string minValue = null, string maxValue = null)
{
return
(c =>
c.Given(string.Format("range attribute isDefined:{0} of type {1} between: {2} and {3}", isDefined, rangeType, minValue, maxValue),
x =>
{
A.CallTo(() => Member.IsDefined(typeof(RangeAttribute))).Returns(isDefined);
RangeAttribute = isDefined ? new RangeAttribute(rangeType, minValue, maxValue) : null;
A.CallTo(() => Member.GetCustomAttribute <RangeAttribute> ()).Returns(RangeAttribute);
}));
}
public static StringConstraints FromMember([CanBeNull] IFastMemberWithValues member)
{
if (member == null)
{
return(null);
}
var minLength = -1;
var maxLength = -1;
var minLengthDefined = false;
var maxLengthDefined = false;
if (member.IsDefined(typeof(MinLengthAttribute)))
{
var minLengthAttribute = member.GetCustomAttribute <MinLengthAttribute>();
minLength = minLengthAttribute?.Length ?? 0;
minLengthDefined = true;
}
if (member.IsDefined(typeof(MaxLengthAttribute)))
{
var maxLengthAttribute = member.GetCustomAttribute <MaxLengthAttribute>();
maxLength = maxLengthAttribute?.Length ?? 0;
maxLengthDefined = true;
}
if (minLengthDefined && maxLengthDefined && maxLength < minLength)
{
throw new ArgumentOutOfRangeException(
string.Format(
"On the member {0} {1} the MinLength attribute and MaxLength attribute result in an invalid range",
member.Type,
member.Name));
}
if (member.IsDefined(typeof(StringLengthAttribute)))
{
var stringLengthAttribute = member.GetCustomAttribute <StringLengthAttribute>();
minLength = stringLengthAttribute?.MinimumLength ?? 0;
maxLength = stringLengthAttribute?.MaximumLength ?? 0;
if (maxLength < minLength)
{
throw new ArgumentOutOfRangeException(
string.Format("On the member {0} {1} the StringLength attribute has an invalid range", member.Type, member.Name));
}
}
if (minLength < 0 && maxLength < 0)
{
return(null);
}
if (minLengthDefined && !maxLengthDefined)
{
maxLength = minLength + 100;
}
if (maxLengthDefined && !minLengthDefined)
{
minLength = maxLength - 100;
}
if (minLength < 0)
{
minLength = 0;
}
return(new StringConstraints(minLength, maxLength));
}
