write test case to expose vacum getter bug

test/dao.test.js

@@ -9,6 +9,7 @@ var chai      = require('chai')
   , datetime  = require('chai-datetime')
   , datetime  = require('chai-datetime')
   , uuid      = require('node-uuid')
   , uuid      = require('node-uuid')
   , _         = require('lodash')
   , _         = require('lodash')
+  , Promise   = require('bluebird')
 
 
 chai.use(datetime)
 chai.use(datetime)
 chai.Assertion.includeStack = true
 chai.Assertion.includeStack = true
@@ -1050,6 +1051,43 @@ describe(Support.getTestDialectTeaser("DAO"), function () {
       })
       })
     })
     })
   })
   })
+  describe('many to many relations', function() {
+    var udo;
+    beforeEach(function(done) {
+      var self = this
+      this.User = this.sequelize.define('UserWithUsernameAndAgeAndIsAdmin', {
+        username: DataTypes.STRING,
+        age:      DataTypes.INTEGER,
+        isAdmin:  DataTypes.BOOLEAN
+      }, {timestamps: false})
+
+      this.Project = this.sequelize.define('NiceProject',
+        { title: DataTypes.STRING }, {timestamps: false})
+
+      this.Project.hasMany(this.User)
+      this.User.hasMany(this.Project)
+
+      this.User.sync({ force: true }).success(function() {
+        self.Project.sync({ force: true }).success(function() {
+          self.User.create({ username: 'fnord', age: 1, isAdmin: true })
+            .success(function(user) {
+              udo = user
+              done()
+            })
+        })
+      })
+    })
+    it('Should assign a property to the instance', function(done) {
+      var self = this;
+      this.User.find({id: udo.id})
+        .success(function(user) {
+          user.NiceProjectId = 1;
+          expect(user.NiceProjectId).to.equal(1);
+          done();
+        })
+    })
+  })
+
 
 
   describe('toJSON', function() {
   describe('toJSON', function() {
     beforeEach(function(done) {
     beforeEach(function(done) {