public static void IfCollectionContainsNull <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] IEnumerable <T> collection,
[NotNull] string collectionName) where T : class
{
Fail.RequiresCollectionName(collectionName);
Fail.IfArgumentNull(collection, nameof(collection));
Fail.IfTrue(collection.Contains(null), "Collection '{0}' contains null", collectionName);
}
public static void IfCollectionEmpty <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] IEnumerable <T> collection,
[NotNull] string collectionName)
{
Fail.RequiresCollectionName(collectionName);
if (collection == null)
{
throw Fail.Because("Collection '{0}' should not be null but it is.", collectionName);
}
if (collection.Any() == false)
{
throw Fail.Because("Collection '{0}' should not be empty but it is.", collectionName);
}
}
public static void IfCollectionContainsNull <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)]
IEnumerable <T> collection,
[NotNull][System.Diagnostics.CodeAnalysis.NotNull] string collectionName
)
where T : class
{
Fail.RequiresCollectionName(collectionName);
if (collection == null)
{
throw Fail.Because(Violation.WhenCollectionIsNull(collectionName));
}
if (collection.Contains(null))
{
throw Fail.Because(Violation.WhenCollectionContainsNull(collectionName));
}
}
public static T OrFailIfCollectionEmpty <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)]
this T collection,
[NotNull][System.Diagnostics.CodeAnalysis.NotNull] string collectionName
)
where T : IEnumerable
{
Fail.RequiresCollectionName(collectionName);
if (collection == null)
{
throw Fail.Because(Violation.WhenCollectionIsNull(collectionName));
}
if (collection.IsEmpty())
{
throw Fail.Because(Violation.WhenCollectionIsEmpty(collectionName));
}
return(collection);
}