fungus/Assets/UnityTestTools/UnitTesting/Editor/UnityUnitTest.cs

using System;
using System.Collections.Generic;
using NUnit.Framework;
using UnityEditor;
using UnityEngine;

[TestFixture]
public abstract class UnityUnitTest
{
    public GameObject CreateGameObject()
    {
        return CreateGameObject("");
    }

    public GameObject CreateGameObject(string name)
    {
        var go = string.IsNullOrEmpty(name) ? new GameObject() : new GameObject(name);
        Undo.RegisterCreatedObjectUndo(go, "");
        return go;
    }

    public GameObject CreatePrimitive(PrimitiveType type)
    {
        var p = GameObject.CreatePrimitive(type);
        Undo.RegisterCreatedObjectUndo(p, "");
        return p;
    }
}