public async Task IndexShouldReturnsViewWithCorrectModel()
{
// Arrange
var brands = DataHelper.GetBrandsCollection();
var adminBrandsService = new Mock <IAdminBrandsService>();
adminBrandsService
.Setup(s => s.AllAsync())
.ReturnsAsync(brands);
var controller = new BrandsController(adminBrandsService.Object, null);
// Act
var result = await controller.Index();
// Assert
result.Should().NotBeNull();
result.Should().BeOfType <ViewResult>();
var viewName = result.As <ViewResult>().ViewName;
viewName.Should().BeNull();
var model = result.As <ViewResult>().Model;
var viewModel = model.As <BrandListingViewModel>();
viewModel.Should().NotBeNull();
}