public void TestIf_DoesArticleExist_ReturnsFalse()
{
var articleRepository = new Mock <IRepository <Article> >();
articleRepository.Setup(p => p.All()).Returns(new List <Article>
{
new Article {
Id = 2
}
}
.AsQueryable());
var articleService = new ArticleService(articleRepository.Object, null, null, null, null, null);
Assert.False(articleService.DoesArticleExist(1));
}