aspnetcore/test/MusicStore.Test/CartSummaryComponentTest.cs

88 lines
2.9 KiB
C#

using System;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.AspNetCore.Mvc.ViewComponents;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using MusicStore.Controllers;
using MusicStore.Models;
using Xunit;
namespace MusicStore.Components
{
public class CartSummaryComponentTest
{
private readonly IServiceProvider _serviceProvider;
public CartSummaryComponentTest()
{
var efServiceProvider = new ServiceCollection().AddEntityFrameworkInMemoryDatabase().BuildServiceProvider();
var services = new ServiceCollection();
services.AddDbContext<MusicStoreContext>(b => b.UseInMemoryDatabase("Scratch").UseInternalServiceProvider(efServiceProvider));
_serviceProvider = services.BuildServiceProvider();
}
[Fact]
public async Task CartSummaryComponent_Returns_CartedItems()
{
// Arrange
var viewContext = new ViewContext()
{
HttpContext = new DefaultHttpContext()
};
// Session initialization
var cartId = "CartId_A";
viewContext.HttpContext.Session = new TestSession();
viewContext.HttpContext.Session.SetString("Session", cartId);
// DbContext initialization
var dbContext = _serviceProvider.GetRequiredService<MusicStoreContext>();
PopulateData(dbContext, cartId, albumTitle: "AlbumA", itemCount: 10);
// CartSummaryComponent initialization
var cartSummaryComponent = new CartSummaryComponent(dbContext)
{
ViewComponentContext = new ViewComponentContext() { ViewContext = viewContext }
};
// Act
var result = await cartSummaryComponent.InvokeAsync();
// Assert
Assert.NotNull(result);
var viewResult = Assert.IsType<ViewViewComponentResult>(result);
Assert.Null(viewResult.ViewName);
Assert.Null(viewResult.ViewData.Model);
Assert.Equal(10, cartSummaryComponent.ViewBag.CartCount);
Assert.Equal("AlbumA", cartSummaryComponent.ViewBag.CartSummary);
}
private static void PopulateData(MusicStoreContext context, string cartId, string albumTitle, int itemCount)
{
var album = new Album()
{
AlbumId = 1,
Title = albumTitle,
};
var cartItems = Enumerable.Range(1, itemCount).Select(n =>
new CartItem()
{
AlbumId = 1,
Album = album,
Count = 1,
CartId = cartId,
}).ToArray();
context.AddRange(cartItems);
context.SaveChanges();
}
}
}