public void DeleteFriendshipRepositoryTest()
        {
            IFriendshipRepository repository = new FriendshipRepository();

            var deletedFriendship = repository.Delete(1);

            var persistedFriendship = _contextForTest.Friendships.Find(1);
            Assert.IsNull(persistedFriendship);

            persistedFriendship.Should().BeNull();
        }