public void CreateRegionManagerCreatesANewInstance()
 {
     var regionManager = new RegionManager();
     var createdRegionManager = regionManager.CreateRegionManager();
     Assert.IsNotNull(createdRegionManager);
     Assert.IsInstanceOfType(createdRegionManager, typeof(RegionManager));
     Assert.AreNotSame(regionManager, createdRegionManager);
 }