public void DeleteClient() { //Arrange Client newClient = tu.CreateClientInDb(); var expectedResponse = newClient; using (_db = tu.CreateDataBaseContext()) { //Act var response = cs.DeleteClient(_db, newClient.Id); _db.SaveChanges(); var result = _db.Clients.Find(newClient.Id); //Assert Assert.IsNotNull(response); Assert.IsNull(result); Assert.AreEqual(response.Id, expectedResponse.Id); } }