UnitTests/LibraryTest.cs
using Sandbox;

[TestClass]
public partial class LibraryTests
{
    [TestMethod]
    public void SceneTest()
    {
        var scene = new Scene();
        using (scene.Push())
        {
            var go = new GameObject();

            Assert.AreEqual(1, scene.Directory.GameObjectCount);
        }
    }
}