ModelBuilder.UnitTests.ExtensionsTests.SetEachReadOnlyCollectionRunsActionAgainstInstanceTest C# (CSharp) Method

        public void SetEachReadOnlyCollectionRunsActionAgainstInstanceTest()
        {
            var index = 0;
            var source = new List<Person>
            {
                new Person(),
                new Person()
            };
            var target = new ReadOnlyCollection<Person>(source);

            var actual = target.SetEach(x =>
            {
                index++;
                x.Priority = index;
            });

            actual.Should().BeSameAs(target);
            actual.Count.Should().Be(2);
            actual.First().Priority.Should().Be(1);
            actual.Skip(1).First().Priority.Should().Be(2);
        }