using System.Collections.Generic; using System.Runtime.CompilerServices; namespace NUnit.Framework.Constraints { [NullableContext(1)] [Nullable(0)] internal sealed class ExactCountConstraintResult : ConstraintResult { private readonly int _matchCount; private readonly ICollection<object> _itemList; internal ExactCountConstraintResult(IConstraint constraint, [Nullable(2)] object actualValue, bool isSuccess, int matchCount, ICollection<object> itemList) : base(constraint, actualValue, isSuccess) { _matchCount = matchCount; _itemList = itemList; } public override void WriteActualValueTo(MessageWriter writer) { if (_itemList == null || _itemList.Count == 0) writer.Write("no matching items"); else { writer.Write((_matchCount != 1) ? "{0} matching items " : "{0} matching item ", _matchCount); writer.Write(MsgUtils.FormatCollection(_itemList, 0, 10)); } } } }