public void Index()
        {
            //Arrange
                    HelloWorldController controller = new HelloWorldController();

                    // Act
                    string result = controller.Get();

                    //Assert
                    Assert.IsNotNull(result);
                    Assert.AreEqual("Hello World",result);
        }
        public void GetReturnsProduct()
        {
            // Arrange
            var controller = new HelloWorldController();
            controller.Request = new HttpRequestMessage();
            controller.Configuration = new HttpConfiguration();

            // Act
            var response = controller.Get();

            // Assert
         
           // Assert.IsTrue(true);
            Assert.AreEqual("Hello ", response);
        }