public void GetById()
        {
            // Arrange
            DemoController controller = new DemoController();

            // Act
            string result = controller.Get(5);

            // Assert
            Assert.AreEqual("value", result);
        }
        public void Get()
        {
            // Arrange
            DemoController controller = new DemoController();

            // Act
            IEnumerable<string> result = controller.Get();

            // Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(2, result.Count());
            Assert.AreEqual("value1", result.ElementAt(0));
            Assert.AreEqual("value2", result.ElementAt(1));
        }