First example of unit test when inserting the first row after the second one

gistfile1.cs

[TestClass]
public class ChampionshipBetViewModel_DragAndDrop_Tests
{
    private readonly ChampionshipBetViewModel _championshipBetViewModel;
    private readonly Mock<IChampionship> _championShip;

    private readonly IFootballClub _club1;
    private readonly IFootballClub _club2;
    private readonly IFootballClub _club3;
    private readonly IFootballClub _club4;

    private IFootballClub GetMockClub(int i)
    {
        var club1 = new Mock<IFootballClub>();
        club1.Setup(m => m.FullName).Returns("Club"+i);
        return club1.Object;
    }

    public ChampionshipBetViewModel_DragAndDrop_Tests()
    {
        _club1 = GetMockClub(1);
        _club2 = GetMockClub(2);
        _club3 = GetMockClub(3);
        _club4 = GetMockClub(4);

        _championShip = new Mock<IChampionship>();
        _championShip.SetupGet(c => c.UserBet).Returns(new List<IFootballClub>(new[] { _club1, _club2, _club3, _club4}));
        _championshipBetViewModel = new ChampionshipBetViewModel(_championShip.Object);
    }

    [TestMethod]
    public void When_Source_Is_FirstRow_And_Target_Second_Then_Drop_Should_Reorder()
    {
        var dropInfo = new Mock<IDropInfo>();
        dropInfo.SetupGet(m => m.Data).Returns(new[] { _club1 });
        dropInfo.SetupGet(m => m.InsertIndex).Returns(2);

        _championshipBetViewModel.Drop(dropInfo.Object);

        var resultClubs = _championshipBetViewModel.FootballClubs.Select(x=>x.FullName).ToArray();
        CollectionAssert.AreEqual(new[] { "Club2", "Club1", "Club3", "Club4" }, resultClubs);
    }
}