I've done a simple implementation which allows for the usage specified by the OP and in general considers enumerables which introduce recursion as not equal.
Not sure it is really worth to add real support for recursive enumerables and for explicity identity comparison in Contains constraint, maybe the second is more desirable than the first though. -- You received this bug notification because you are a member of NUnit Developers, which is subscribed to NUnit V2. https://bugs.launchpad.net/bugs/1051847 Title: self contained item in array causes stack overflow Status in NUnit V2 Test Framework: Confirmed Bug description: using System.Collections; using System.Collections.Generic; using NUnit.Framework; [TestFixture] public class Reproduction { class SelfContainer : IEnumerable { public IEnumerator GetEnumerator() { yield return this; } } [Test] public void SelfContainedItemFoundInArray() { var item = new SelfContainer(); var items = new SelfContainer[] { new SelfContainer(), item }; // work around Assert.True(((ICollection<SelfContainer>)items).Contains(item)); // causes StackOverflowException Assert.Contains(item, items); } } Reproduced in NUnit 2.6.1 See also bug #491300 To manage notifications about this bug go to: https://bugs.launchpad.net/nunitv2/+bug/1051847/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~nunit-core Post to : [email protected] Unsubscribe : https://launchpad.net/~nunit-core More help : https://help.launchpad.net/ListHelp

