public async Task Article_When_Called_Should_Return_ViewResult()
{
mapperMock.Setup(x => x.Map <Article, ArticleViewModel>(It.IsAny <Article>()))
.Returns(MockData.TestArticleViewModelMock());
commentServiceMock.Setup(x => x.GetArticleComments(It.IsAny <int>())).Returns(MockData.TestArticleCommentsMock());
mapperMock.Setup(x => x.Map <List <Comment>, List <CommentViewModel> >(It.IsAny <List <Comment> >()))
.Returns(new List <CommentViewModel>());
int articleId = 1;
var result = await appController.Article(articleId) as ViewResult;
result.Should().BeOfType <ViewResult>();
}