SharpRepository是否在测试中不处置存储库？

Question

I'm trying to write an integration test for my application that utilizes entity framework and sharprepository. I'm writing some tests at the moment and I've noticed that data that I add to the repository in the tests is not being removed when I call Dispose() during TestCleanup. My code is as follows:

    [TestInitialize]
    public void Initialize()
    {
        var config = new EntityFrameworkRepositoryConfiguration(null);
        _factory = new BasicRepositoryFactory(config);
        _channelRepository = _factory.CreateRepository<Channel>();
    }

    [TestCleanup]
    public void Cleanup()
    {
        _channelRepository.Dispose();
    }

    [TestMethod]
    public void ShouldCreateRepositoryAndExecuteGetAllWithoutExceptions()
    {
        _channelRepository.GetAll();
    }

    [TestMethod]
    public void ShouldCreateRepositoryAndInsertIntoItWithoutExceptions()
    {
        var repo = _factory.CreateRepository<Channel>();
        // NB: We can't mock this. Has to be real stuff.
        var channel = new Channel() { Id = 1 };

        _channelRepository.Add(channel);

        Assert.AreSame(channel, _channelRepository.Get(1));
    }

    [TestMethod]
    public void ShouldCreateRepositoryAndFindSingleElementBasedOnPredicate()
    {
        var channels = new[]
        {
            new Channel(),
            new Channel(),
            new Channel()
        };

        _channelRepository.Add(channels);

        var firstOfPredicate = _channelRepository.Find(x => x.Id > 3);
        Assert.IsTrue(_channelRepository.Count() == channels.Length,
            "Seeded array has {0} elements, but the repository has {1}.",
            channels.Length,
            _channelRepository.Count());
        Assert.AreEqual(channels[2].Id, firstOfPredicate.Id);
    }

The main purpose of these tests is not to test the SharpRepository implementation of EntityFramework, but rather to make sure that I've configured Entity Framework correctly. EntityFrameworkRepositoryConfiguration simply contains a connection string, which is passed to BasicRepositoryFactory - which literally just calls return RepositoryFactory.GetInstance<T>(); .

My issue is is that ShouldCreateRepositoryAndFindSingleElementBasedOnPredicate fails because the element added in ShouldCreateRepositoryAndInsertIntoItWithoutExceptions is still in the repository - even though the repository should have been disposed in Cleanup .

What can I do to fix this issue?

Answer 1

I was stupid - I automatically assumed that IRepository would work like the Entity Framework repository in that all actions are interally queued until you call SaveChanges; nope. What actually happens is that all changes are committed immediately when you use any CRUD operation on IRepository.

I discovered Batches last night, which are basically delayed queue actions. I should use those for tests, rather than IRepository.