PixiEditor/PixiEditorTests/HelpersTests/DependencyInjectionTests.cs

using Microsoft.Extensions.DependencyInjection;
using PixiEditor.Helpers;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xunit;

namespace PixiEditorTests.HelpersTests
{
    [Collection("Application collection")]
    public class DependencyInjectionTests
    {
        private class TestService
        {
        }

        private class TestInjectable
        {
            public TestService TestService { get; }

            public TestInjectable(TestService service)
            {
                TestService = service;
            }
        }

        [Fact]
        public void TestThatInjectingWorks()
        {
            IServiceProvider provider = new ServiceCollection()
                .AddSingleton<TestService>()
                .BuildServiceProvider();

            TestInjectable injectable = provider.Inject<TestInjectable>();

            Assert.NotNull(injectable.TestService);
        }
    }
}