public async Task DeleteSamplePlaylistAsync_ShouldReturnSamplePlaylist2BDeleted() { //arrange int id = 1; ProjectDBContext projectDBContext = new ProjectDBContext(options); ProjectRepoDB projectRepoDB = new ProjectRepoDB(projectDBContext); var samplePlaylist2BDeleted = projectDBContext.SamplePlaylist.Where(i => i.Id == id).FirstOrDefault(); //act var result = await projectRepoDB.DeleteSamplePlaylistAsync(samplePlaylist2BDeleted); //assert Assert.Equal(1, result.Id); }