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

    private static ControllerContext ContextWithUser(string id)
    {
        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 Send_EmptyContent_ReturnsBadRequest()
    {
        var svc = new Mock<ChatService>(cfg);
        var controller = new ChatController(svc.Object)
        {
            ControllerContext = ContextWithUser("u")
        };

        var result = await controller.Send(new ChatMessageRequest { Content = "" });

        Assert.IsType<BadRequestObjectResult>(result);
    }

    [Fact]
    public async Task Recent_ReturnsOk()
    {
        var list = new List<ChatMessage>();
        var svc = new Mock<ChatService>(cfg);
        svc.Setup(s => s.GetRecentAsync(5)).ReturnsAsync(list);
        var controller = new ChatController(svc.Object)
        {
            ControllerContext = ContextWithUser("u")
        };

        var result = await controller.Recent(5);

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