public void AddShouldAddNewLinkToDbAndReturnShortUrl()
{
// Arrange
var linkService = A.Fake <IDataLinkService>();
A.CallTo(() => linkService.Add(A <Link> .Ignored))
.ReturnsLazily((Link link) => link);
var linkBuilder = A.Fake <IShortLinkBuilder>();
A.CallTo(() => linkBuilder.Build(A <ActionContext> .Ignored, A <long> .Ignored))
.ReturnsLazily((ActionContext context, long id) => $"coded short url");
var controller = new LinkController(linkService, linkBuilder, CreateTokenServiceMock());
// Act
var result = controller.Add("some url").Value as AddViewModel;
// Assert
Assert.That(result.ShortUrl, Is.EqualTo("coded short url"));
}