/// <summary>
/// Tests the validity of an enumerable reference.
/// </summary>
/// <param name="reference">The reference to test.</param>
/// <param name="targetValue">The actual collection pointed by the reference.</param>
public static void TestReferenceEnumerable(ReferenceEnumerable reference, object targetValue)
{
var collection = (ICollection)targetValue;
// Check that the reference is not null.
Assert.NotNull(reference);
// Check that the counts match.
Assert.Equal(collection.Count, reference.Count);
Assert.Equal(collection.Count, reference.Indices.Count);
// Check that the object references match.
foreach (var objReference in reference.Zip(collection.Cast <object>(), Tuple.Create))
{
Assert.Equal(objReference.Item2, objReference.Item1.ObjectValue);
if (objReference.Item2 != null)
{
TestNonNullObjectReference(objReference.Item1, objReference.Item2, true);
}
else
{
TestNullObjectReference(objReference.Item1);
}
}
// TODO: rework reference system and enable this
//Assert.Null(reference.Index);
}
internal static IReference CreateReference(object objectValue, Type objectType, object index)
{
if (objectValue != null && !objectType.IsInstanceOfType(objectValue)) throw new ArgumentException(@"objectValue type does not match objectType", "objectValue");
++creatingReference;
IReference reference;
var isCollection = HasCollectionReference(objectValue != null ? objectValue.GetType() : objectType);
if (objectValue != null && isCollection && index == NotInCollection)
{
reference = new ReferenceEnumerable((IEnumerable)objectValue, objectType, index);
}
else
{
reference = new ObjectReference(objectValue, objectType, index);
}
--creatingReference;
return reference;
}
internal static IReference CreateReference(object objectValue, Type objectType, Index index)
{
if (objectValue != null && !objectType.IsInstanceOfType(objectValue)) throw new ArgumentException(@"objectValue type does not match objectType", nameof(objectValue));
if (!CreatingReference.IsValueCreated)
CreatingReference.Value = 0;
++CreatingReference.Value;
IReference reference;
var isCollection = HasCollectionReference(objectValue?.GetType() ?? objectType);
if (objectValue != null && isCollection && index.IsEmpty)
{
reference = new ReferenceEnumerable((IEnumerable)objectValue, objectType, index);
}
else
{
reference = new ObjectReference(objectValue, objectType, index);
}
--CreatingReference.Value;
return reference;
}
