Initialize embedded mongodb collection in unit tests.

[József Pollák]

Hello everyone,

I am writing tests for a vertx project of mine and using embedded mongodb for it. (de.flapdoodle.embed.mongo)

I was kind of wondering about the correct way to initialize my database with data.

This is what I came up with. Is it a good way to do it or are there any other preferred ways?

    @BeforeClass

    public static void init(TestContext context) throws IOException {
        /*
          ...
          Code for starting embedded mongo based on http://vertx.io/blog/combine-vert-x-and-mongo-to-build-a-giant/
          ...
        */

        MONGO = mongodExecutable.start();


        List<Item> items = getData();
        Async async = context.async(items.size());

        JsonObject config = new JsonObject().put("host", "localhost").put("port", MONGO_PORT);

        MongoClient mongoClient = MongoClient.createShared(vertx, config);

        

        for (Item item : items) {

            mongoClient.insert(

                    COLLECTION,

                    new JsonObject(Json.encode(item)),

                    res -> async.countDown());

        }

        async.await();

        mongoClient.close();

    }