public void Index()
{
// Arrange
_mockService
.Setup(x =>
x.GetMessage(It.IsAny<int>())).Returns("This works");
var controller = new HomeController(_mockService.Object);
// Act
var result = controller.Index() as ViewResult;
// Assert
_mockService
.Verify(x => x.GetMessage(It.IsAny<int>()), Times.Once());
Assert.IsNotNull(result);
Assert.AreEqual("This works", result.ViewBag.Message);
}
