x-lab-lbq-technical-test/backend/LeedsBeerQuest.API/LeedsBeerQuest.API.Tests/Controllers/CategoryControllerTests.cs

using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using LeedsBeerQuest.API.Controllers;
using LeedsBeerQuest.API.Data.Models;
using LeedsBeerQuest.API.Data.Services.Interfaces;
using LeedsBeerQuest.API.Tests.Data.Services;
using LeedsBeerQuest.API.Tests.TestHelpers;
using NSubstitute;
using NUnit.Framework;

namespace LeedsBeerQuest.API.Tests.Controllers;

[TestFixture]
public class CategoryControllerTests
{
    private ICategoryService _categoryService;
    private CategoryController _categoryController;

    [SetUp]
    public void SetUp()
    {
        _categoryService = Substitute.For<ICategoryService>();
        _categoryController = new CategoryController(_categoryService);
    }

    [Test]
    public async Task GetCategories_ReturnsOk_WithAllCategories()
    {
        _categoryService.GetCategories().Returns(TestData.CategoryTestData);

        var result = await _categoryController.GetCategories();
        var resultObject = ControllerTestHelper.ActionResultToOkResultValue<IEnumerable<Category>>(result);

        Assert.AreEqual(TestData.CategoryTestData.Length, resultObject.Count());
    }
}