using System.Collections; namespace NUnit.Framework.Constraints { public class CollectionContainsConstraint : CollectionItemsEqualConstraint { private readonly object expected; public override string Description => "collection containing " + MsgUtils.FormatValue(expected); public CollectionContainsConstraint(object expected) : base(expected) { this.expected = expected; base.DisplayName = "Contains"; } protected override bool Matches(IEnumerable actual) { foreach (object item in actual) { if (ItemsEqual(item, expected)) return true; } return false; } } }