gameauthapi/GameAuthApi.Tests/AuctionControllerTests.cs

using GameAuthApi.Controllers;
using GameAuthApi.Models;
using GameAuthApi.Services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using System.Security.Claims;

public class AuctionControllerTests
{
    private static IConfiguration cfg = new ConfigurationBuilder()
        .AddInMemoryCollection(new Dictionary<string,string>
        {
            {"MongoDB:ConnectionString","mongodb://localhost"},
            {"MongoDB:DatabaseName","test"}
        }).Build();

    private static ControllerContext Ctx(string id="u")
    {
        var ctx = new DefaultHttpContext();
        ctx.User = new ClaimsPrincipal(new ClaimsIdentity(new[]
        {
            new Claim(ClaimTypes.NameIdentifier,id)
        }, "mock"));
        return new ControllerContext { HttpContext = ctx };
    }

    [Fact]
    public async Task ListItem_InvalidItem_ReturnsBadRequest()
    {
        var itemSvc = new Mock<ItemService>(cfg);
        itemSvc.Setup(i => i.GetByIdAsync("bad")).ReturnsAsync((Item?)null);
        var controller = new AuctionController(new Mock<AuctionService>(cfg).Object, itemSvc.Object)
        {
            ControllerContext = Ctx()
        };

        var result = await controller.ListItem(new CreateAuctionRequest { ItemId="bad", StartingPrice=1 });

        Assert.IsType<BadRequestObjectResult>(result);
    }

    [Fact]
    public async Task PlaceBid_AuctionNotFound()
    {
        var aucSvc = new Mock<AuctionService>(cfg);
        aucSvc.Setup(a => a.GetByIdAsync("a")).ReturnsAsync((Auction?)null);
        var controller = new AuctionController(aucSvc.Object, new Mock<ItemService>(cfg).Object)
        {
            ControllerContext = Ctx()
        };

        var result = await controller.PlaceBid(new BidRequest { AuctionId="a", BidAmount=5 });

        Assert.IsType<NotFoundObjectResult>(result);
    }

    [Fact]
    public async Task GetActive_ReturnsOk()
    {
        var aucSvc = new Mock<AuctionService>(cfg);
        var list = new List<Auction>();
        aucSvc.Setup(a => a.GetActiveAsync()).ReturnsAsync(list);
        var controller = new AuctionController(aucSvc.Object, new Mock<ItemService>(cfg).Object)
        {
            ControllerContext = Ctx()
        };

        var result = await controller.GetActive();

        var ok = Assert.IsType<OkObjectResult>(result);
        Assert.Equal(list, ok.Value);
    }
}