CODEWITHSUNDEEP
mongodbtestingmongoosemocha.jsshould.js
fusio
fusio

Reputation: 3675

Drop MongoDB database before running Mocha test

If I try to drop the database using after (at the end of my tests) it works.

If I try the following:

var db = mongoose.connect('mongodb://localhost/db-test')

describe('Database', function() {

    before(function (done) {
        db.connection.db.dropDatabase(function(){
            done()
        })
    })

    ...

it does not drop the DB. what is going on? I would prefer dropping the db before starting testing -- so that after testing I can explore the db.

Upvotes: 5

Views: 6989

Answers (2)

chenop
chenop

Reputation: 5143

I implemented it a bit different.

  1. I removed all documents in the "before" hook - found it a lot faster than dropDatabase().

  2. I used Promise.all() to make sure all documents were removed before exiting the hook.

    beforeEach(function (done) {

    function clearDB() {
        var promises = [
            Model1.remove().exec(),
            Model2.remove().exec(),
            Model3.remove().exec()
        ];

        Promise.all(promises)
            .then(function () {
                done();
            })
    }

    if (mongoose.connection.readyState === 0) {
        mongoose.connect(config.dbUrl, function (err) {
            if (err) {
                throw err;
            }
            return clearDB();
        });
    } else {
        return clearDB();
    }
});

Upvotes: 4

fusio
fusio

Reputation: 3675

solved by connect in another define.. not sure if ideal.

describe('Init', function() {

    before(function (done) {   
        mongoose.connect('mongodb://localhost/db-test', function(){
            mongoose.connection.db.dropDatabase(function(){
                done()
            })    
        })
    })

    describe('Database', function() {

Upvotes: 11

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