public async void Should_Return_List_of_deals_for_the_current_user_id_if_deals_exist()
{
//Arrange
var deals = FakeDeals();
_dealRepository.Setup(x => x.GetDealsById(It.IsAny <Guid>())).ReturnsAsync(deals);
//Act
var result = await sut.Index(Guid.NewGuid());
//Assert
var viewResult = Assert.IsType <ViewResult>(result);
IEnumerable <Deal> model = Assert.IsAssignableFrom <IEnumerable <Deal> >(viewResult.ViewData.Model);
}