In nUnit, what is the equivalent to Hamcrest's Matchers.containsInAnyOrder(Matcher... matchers)?

Question

I'd like to assert that an ICollection contains items that will satisfy a collection of Constraints. For Java Hamcrest, I would use Matchers.containsInAnyOrder(Matcher... matchers). That is for a given collection, each item of the collection would match one matcher in matchers.

I'm struggling to find an equivalent in nUnit 3. Does one exist?

Answer 1

Alright. I implemented a slick answer to this. The key is to create an IComparer that will compare the constraint and the object. It looks like this:

/// <summary>
/// A Comparer that's appropriate to use when wanting to match objects with expected constraints.
/// </summary>
/// <seealso cref="System.Collections.IComparer" />
public class ConstraintComparator : IComparer
{
    public int Compare(object x, object y)
    {
        var constraint = x as IConstraint;

        var matchResult = constraint.ApplyTo(y);

        return matchResult.IsSuccess ? 0 : -1;
    }
}

I can then do the following:

Assert.That(actual, Is.EquivalentTo(constraints).Using(new ConstraintComparator()));