模拟HttpContext来对.NET核心MVC控制器进行单元测试？

我能够以这种方式初始化httpcontext和标头：

[TestMethod]public void TestValuesController(){    ValuesController controller = new ValuesController();    controller.ControllerContext = new ControllerContext();    controller.ControllerContext.HttpContext = new DefaultHttpContext();    controller.ControllerContext.HttpContext.Request.Headers["device-id"] = "20317";    var result = controller.Get();    //the controller correctly receives the http header key value pair device-id:20317    ...}