mocha-mongoose

Test helpers for using mongoose with mocha.

See the example spec (copied below) for more details.

Installation

1. install via npm

   $ npm install mocha-mongoose

2. require mocha-mongoose in your spec helper (easier) or in each spec file

   require('mocha-mongoose')('mongodb://your-mongodb-url-here');

3. mocha-mongoose will automatically clear all of your collections before each spec run

4. optionally provide a skip option to tell mocha-mongoose not to clear specific collections. require('mocha-mongoose')(dbURI, { skip: ['collectionname1', 'collectionname2'] });

Example usage of automatically clearing the DB between specs:

This is a copy of example/test.js

var dbURI    = 'mongodb://localhost/demo-app-clearing-db'
  , should   = require('chai').should()
  , mongoose = require('mongoose')
  , Dummy    = mongoose.model('Dummy', new mongoose.Schema({a:Number}))
  , clearDB  = require('mocha-mongoose')(dbURI)
;

describe("Example spec for a model", function() {
  beforeEach(function(done) {
    if (mongoose.connection.db) return done();

    mongoose.connect(dbURI, done);
  });

  it("can be saved", function(done) {
    new Dummy({a: 1}).save(done);
  });

  it("can be listed", function(done) {
    new Dummy({a: 1}).save(function(err, model){
      if (err) return done(err);

      new Dummy({a: 2}).save(function(err, model){
        if (err) return done(err);

        Dummy.find({}, function(err, docs){
          if (err) return done(err);

          // without clearing the DB between specs, this would be 3
          docs.length.should.equal(2);
          done();
        });
      });
    });
  });

  it("can clear the DB on demand", function(done) {
    new Dummy({a: 5}).save(function(err, model){
      if (err) return done(err);

      clearDB(function(err){
        if (err) return done(err);

        Dummy.find({}, function(err, docs){
          if (err) return done(err);

          console.log(docs);

          docs.length.should.equal(0);
          done();
        });
      });
    });
  });
});

Example usage of manually clearing the DB:

This is a copy of example/manual.js

var dbURI    = 'mongodb://localhost/demo-app-clearing-db'
  , expect   = require('chai').expect
  , mongoose = require('mongoose')
  , Dummy    = mongoose.model('Dummy', new mongoose.Schema({a:Number}))
  , clearDB  = require('mocha-mongoose')(dbURI, {noClear: true})
;

describe("Example spec for a model", function() {
  before(function(done) {
    if (mongoose.connection.db) return done();

    mongoose.connect(dbURI, done);
  });

  before(function(done) {
    clearDB(done);
  });

  it("can be saved", function(done) {
    Dummy.create({a: 1}, done);
  });

  it("can save another", function(done) {
    Dummy.create({a: 2}, done);
  });

  it("can be listed", function(done) {
     Dummy.find({}, function(err, models){
      expect(err).to.not.exist;
      expect(models).to.have.length(2);

      done();
     });
  });

  it("can clear the DB on demand", function(done) {
    Dummy.count(function(err, count){
      expect(err).to.not.exist;
      expect(count).to.equal(2);

      clearDB(function(err){
        expect(err).to.not.exist;

        Dummy.find({}, function(err, docs){
          expect(err).to.not.exist;

          expect(docs.length).to.equal(0);
          done();
        });
      });
    });
  });
});