public void SearchMovie_Should_FindTheCorrectOnes() { var db = new TFContext(DatabaseSimulator()); var genreServiceMock = new Mock <IGenreServices>(); var movieService = new MovieServices(db, genreServiceMock.Object); var movie = new Movie() { Id = 1, Title = "The Movie" }; var secondMovie = new Movie() { Id = 2, Title = "The Movies" }; var movieWithoutThe = new Movie() { Id = 3, Title = "Movie" }; db.Movies.AddRange(movie, secondMovie, movieWithoutThe); db.SaveChanges(); int movieCount = movieService.SearchMovie("The").Count(); Assert.AreEqual(2, movieCount); }