public static MandateContext <T> IsNotNull <T>(this MandateContext <T> context) where T : class
{
Mandate.That(context, context.Value == default(T), () => new ArgumentNullException(context.ParamName));
return(new MandateContext <T>(context));
}
public static MandateContext <T> Is <T>(this MandateContext <T> context, T comparisonValue) where T : IComparable
{
Mandate.That(context, context.Value.CompareTo(comparisonValue) == 0, () =>
new ArgumentOutOfRangeException(context.ParamName, context.Value,
$"Parameter must be equal to {context.Value}"));
return(new MandateContext <T>(context));
}
public static void That <T, TException>(MandateContext <T> context, bool condition, Func <TException> defer)
where TException : Exception, new()
{
if (condition)
{
throw defer.Invoke();
}
}
public static MandateContext <IEnumerable <T> > Contains <T>(this MandateContext <IEnumerable <T> > context, T value)
{
context.IsNotNull();
Mandate.That(context, !context.Value.Contains(value), () => new ArgumentNullException(context.ParamName));
return(new MandateContext <IEnumerable <T> >(context));
}
public static MandateContext <T[]> SizeIs <T>(this MandateContext <T[]> context, int expected)
{
context.IsNotNull();
Mandate.That(context, context.Value.Length != expected, () => new ArgumentNullException(context.ParamName));
return(new MandateContext <T[]>(context));
}
public static MandateContext <T[]> HasAny <T>(this MandateContext <T[]> context)
{
context.IsNotNull();
Mandate.That(context, !context.Value.Any(), () => new ArgumentNullException(context.ParamName));
return(new MandateContext <T[]>(context));
}
public static MandateContext <IDictionary <TKey, TValue> > SizeIs <TKey, TValue>(
this MandateContext <IDictionary <TKey, TValue> > context, int expected)
{
context.IsNotNull();
Mandate.That(context, context.Value.Count != expected, () => new ArgumentNullException(context.ParamName));
return(new MandateContext <IDictionary <TKey, TValue> >(context));
}
public static MandateContext <IEnumerable <T> > SizeIs <T>(this MandateContext <IEnumerable <T> > context,
int expected)
{
context.IsNotNull();
Mandate.That(context, context.Value.Count() != expected,
() => new ArgumentNullException(context.ParamName));
return(new MandateContext <IEnumerable <T> >(context));
}
public static MandateContext <IDictionary <TKey, TValue> > HasAny <TKey, TValue>(
this MandateContext <IDictionary <TKey, TValue> > context)
{
context.IsNotNull();
Mandate.That(context, context.Value.Count == 0, () => new ArgumentNullException(context.ParamName));
return(new MandateContext <IDictionary <TKey, TValue> >(context));
}
public static MandateContext <IDictionary <TKey, TValue> > Contains <TKey, TValue>(
this MandateContext <IDictionary <TKey, TValue> > context, KeyValuePair <TKey, TValue> value)
{
context.IsNotNull();
Mandate.That(context, context.Value.Contains(value), () => new ArgumentNullException(context.ParamName));
return(new MandateContext <IDictionary <TKey, TValue> >(context));
}
public static MandateContext <T> IsNotBetween <T>(this MandateContext <T> context, T minValue, T maxValue)
where T : IComparable
{
Mandate.That(context,
context.Value.CompareTo(minValue) == 1 && context.Value.CompareTo(maxValue) == -1,
() =>
new ArgumentOutOfRangeException(context.ParamName, context.Value,
$"Parameter must be greater than {minValue} and less than {maxValue}"));
return(new MandateContext <T>(context));
}
public static MandateContext <T> IsBetween <T>(this MandateContext <T> context, T minValue, T maxValue)
where T : IComparable
{
Mandate.That(context,
context.Value.CompareTo(minValue) != -1 && context.Value.CompareTo(maxValue) != 1,
() =>
new ArgumentOutOfRangeException(context.ParamName, context.Value,
string.Format("Parameter must be greater than or equal to {0} and less than or equal to {1}",
minValue, maxValue)));
return(new MandateContext <T>(context));
}
public static MandateContext <T> IsLessThanOrEqualTo <T>(this MandateContext <T> context, T comparisonValue)
where T : IComparable
{
var val = context.Value.CompareTo(comparisonValue);
Mandate.That(context, context.Value.CompareTo(comparisonValue) == 0,
() =>
new ArgumentOutOfRangeException(context.ParamName, context.Value,
$"Parameter must be less than {comparisonValue}"));
return(context);
}
internal DateTimeContext(MandateContext <DateTime> parentContext) : base(parentContext)
{
}
