public void MoveToNextPage()
        {
            var people = _generator.Take(100).ToArray();
            _source.AddRange(people);
            _controller.Virtualise(new VirtualRequest(25, 25));

            var expected = people.Skip(25).Take(25).ToArray();
            CollectionAssert.AreEqual(expected, _results.Data.Items);
        }
        public void MoveToNextPage()
        {
            var people = _generator.Take(100).ToArray();

            _source.AddRange(people);
            _controller.Virtualise(new VirtualRequest(25, 25));

            var expected = people.Skip(25).Take(25).ToArray();

            _results.Data.Items.ShouldAllBeEquivalentTo(expected);
        }