How to do integration test on MongoDB Connection in play framework using Java

Question

I want to do an integration test on my project which store some data into MongoDB in test mode. I am using org.Mongo .

I have some testing unit class in /test folder. However when I run the unit class from eclipse, there is no data found at all from Mongo DB, nor can I get any collection instance from it.

Here is the test code like:

@Test
public void test(){
    running(testServer(3333, fakeApplication(conf.asMap())), HTMLUNIT, new Callback<TestBrowser>() {
            public void invoke(TestBrowser browser) {
                String body = "\"name:\": \"abc\"";
                MongoStore.store(body);
            }
    });
}

Conf is different config file other than application.conf, which I use to provide staging config. MongoStore is just a wrapper to store data in mongoDB.

I can never store the date into Mongo ( I am pretty sure the rest of mongo connection is good to use ), Nor can I get an instance of DBCollection.

Anyone know how to connect the play to mongo db when running in test unit?

score 0 · Accepted Answer · edited May 23 '17 at 11:58

I figured it out finally.

In the original code , I write a plugin to connect to mongoDB. It seems that when in test mode, play do not automatically load that plugin. So I need to add it as an additionalPlugin as a parameter of fakeApplication().

Everything works fine after that .

Inspired by a question in stackoverflow mentioning that plugins are not enabled automatically in test mode, forget the link thought( What a shame !)

other links : name of the plugins should be the same as ones in conf/play.plugins How to load different plugins in Play framework unit tests?

Play 2.0 FakeApplication setup with test configuration

score 0 · Answer 2 · answered Jun 15 '16 at 09:47

This answer might be too late and irrelevant now, but I am adding just in case someone find it useful. I wrote an opinionated approach to integration/unit testing play application that uses mongodb here. The repository uses reactivemongo as the driver, and scalatest as the testing framework.

How to do integration test on MongoDB Connection in play framework using Java

2 Answers2