public void GetByCityId_ShouldReturnCorrectAd() { System.Guid guid = new Guid("c42ae80e-346f-4a4d-b4d9-2834c762a27f"); //city1 var response = controller.GetByCityId(guid); Assert.AreEqual(HttpStatusCode.OK, response.StatusCode); var ad = response.Content.ReadAsAsync <IEnumerable <Ad> >().Result; Assert.AreEqual(ads.Where(c => c.Value.CityId == guid).Count(), ad.Count()); }