<PackageReference Include="NUnit" Version="3.8.0" />

ListMapper

public class ListMapper
ListMapper is used to transform a collection used as an actual argument producing another collection to be used in the assertion.
using NUnit.Compatibility; using System; using System.Collections; using System.Collections.Generic; using System.Reflection; namespace NUnit.Framework { public class ListMapper { private ICollection original; public ListMapper(ICollection original) { this.original = original; } public ICollection Property(string name) { List<object> list = new List<object>(); foreach (object item in original) { PropertyInfo property = TypeExtensions.GetProperty(item.GetType(), name, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic); if ((object)property == null) throw new ArgumentException($"{item}""{name}"""); list.Add(property.GetValue(item, null)); } return list; } } }