private static UnconfiguredProjectTasksService CreateInstance(IProjectAsynchronousTasksService?tasksService = null, ILoadedInHostListener?loadedInHostListener = null, ISolutionService?solutionService = null) { tasksService ??= IProjectAsynchronousTasksServiceFactory.Create(); loadedInHostListener ??= ILoadedInHostListenerFactory.Create(); solutionService ??= ISolutionServiceFactory.Create(); return(new UnconfiguredProjectTasksService(tasksService, IProjectThreadingServiceFactory.Create(), loadedInHostListener, solutionService)); }