<PackageReference Include="NUnit" Version="4.4.0" />

NUnit.Framework.Constraints.ExactCountConstraint

ExactCountConstraint applies another constraint to each item in a collection, succeeding only if a specified number of items succeed.
namespace NUnit.Framework.Constraints { public class ExactCountConstraint : Constraint, IEnumerableConstraint, IConstraint, IResolveConstraint { public ExactCountConstraint(int expectedCount); public ExactCountConstraint(int expectedCount, IConstraint itemConstraint); public ConstraintResult ApplyToEnumerable<[System.Runtime.CompilerServices.Nullable(2)] TActual, [System.Runtime.CompilerServices.Nullable(2)] TItem>(TActual actual, IEnumerable<TItem> enumerable); } }